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Di(t,e){this.Dc=e||[],Dr(this,{providerId:t,isOAuthProvider:!0}),this.yb={},this.cb=(fi(t)||{}).Ma||null,this.$a=null}function Ai(t){if("string"!=typeof t||0!=t.indexOf("saml."))throw new qr("argument-error",'SAML provider IDs must be prefixed with "saml."');Di.call(this,t,[])}function Ri(t){Di.call(this,t,hi),this.a=[]}function ki(){Ri.call(this,"facebook.com")}function Oi(t){if(!t)throw new qr("argument-error","credential failed: expected 1 argument (the OAuth access token).");var e=t;return l(t)&&(e=t.accessToken),(new ki).credential(null,e)}function Pi(){Ri.call(this,"github.com")}function Li(t){if(!t)throw new qr("argument-error","credential failed: expected 1 argument (the OAuth access token).");var e=t;return l(t)&&(e=t.accessToken),(new Pi).credential(null,e)}function Mi(){Ri.call(this,"google.com"),this.ua("profile")}function xi(t,e){var n=t;return l(t)&&(n=t.idToken,e=t.accessToken),(new Mi).credential(n,e)}function Fi(){Di.call(this,"twitter.com",ci)}function Ui(t,e){var 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Use Query.orderByKey() instead.');if("$priority"===e)throw new Error('Query.orderByChild: "$priority" is invalid.  Use Query.orderByPriority() instead.');if("$value"===e)throw new Error('Query.orderByChild: "$value" is invalid.  Use Query.orderByValue() instead.');Zr("Query.orderByChild",1,e,!1),this.validateNoPreviousOrderByCall_("Query.orderByChild");var n=new kr(e);if(n.isEmpty())throw new Error("Query.orderByChild: cannot pass in empty path.  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n,r=t.getPriority().val(),i=Qi(r,e);if(t.isLeafNode()){var o=t,s=Qi(o.getValue(),e);return s!==o.getValue()||i!==o.getPriority().val()?new di(s,Oi(i)):t}var a=t;return n=a,i!==a.getPriority().val()&&(n=n.updatePriority(new di(i))),a.forEachChild(gi,function(t,r){var i=Hi(r,e);i!==r&&(n=n.updateImmediateChild(t,i))}),n};!function(t){t[t.OVERWRITE=0]="OVERWRITE",t[t.MERGE=1]="MERGE",t[t.ACK_USER_WRITE=2]="ACK_USER_WRITE",t[t.LISTEN_COMPLETE=3]="LISTEN_COMPLETE"}(Li||(Li={}));var Gi,zi,Yi=function(){function t(t,e,n,r){this.fromUser=t,this.fromServer=e,this.queryId=n,this.tagged=r,on(!r||e,"Tagged queries must be from server.")}return t.User=new t(!0,!1,null,!1),t.Server=new t(!1,!0,null,!1),t.forServerTaggedQuery=function(e){return new t(!1,!0,e,!0)},t}(),Xi=function(){function t(t,e,n){this.path=t,this.affectedTree=e,this.revert=n,this.type=Li.ACK_USER_WRITE,this.source=Yi.User}return t.prototype.operationForChild=function(e){if(this.path.isEmpty()){if(null!=this.affectedTree.value)return on(this.affectedTree.children.isEmpty(),"affectedTree should not have overlapping affected paths."),this;var n=this.affectedTree.subtree(new kr(e));return new t(kr.Empty,n,this.revert)}return on(this.path.getFront()===e,"operationForChild called for unrelated child."),new t(this.path.popFront(),this.affectedTree,this.revert)},t}(),Ji=function(){return Gi||(Gi=new wi(_r)),Gi},$i=function(){function t(t,e){void 0===e&&(e=Ji()),this.value=t,this.children=e}return t.fromObject=function(e){var n=t.Empty;return Cn(e,function(t,e){n=n.set(new kr(t),e)}),n},t.prototype.isEmpty=function(){return null===this.value&&this.children.isEmpty()},t.prototype.findRootMostMatchingPathAndValue=function(t,e){if(null!=this.value&&e(this.value))return{path:kr.Empty,value:this.value};if(t.isEmpty())return null;var n=t.getFront(),r=this.children.get(n);if(null!==r){var i=r.findRootMostMatchingPathAndValue(t.popFront(),e);return null!=i?{path:new kr(n).child(i.path),value:i.value}:null}return null},t.prototype.findRootMostValueAndPath=function(t){return this.findRootMostMatchingPathAndValue(t,function(){return!0})},t.prototype.subtree=function(e){if(e.isEmpty())return this;var n=e.getFront(),r=this.children.get(n);return null!==r?r.subtree(e.popFront()):t.Empty},t.prototype.set=function(e,n){if(e.isEmpty())return new t(n,this.children);var r=e.getFront(),i=(this.children.get(r)||t.Empty).set(e.popFront(),n),o=this.children.insert(r,i);return new t(this.value,o)},t.prototype.remove=function(e){if(e.isEmpty())return this.children.isEmpty()?t.Empty:new t(null,this.children);var n=e.getFront(),r=this.children.get(n);if(r){var i=r.remove(e.popFront()),o=void 0;return o=i.isEmpty()?this.children.remove(n):this.children.insert(n,i),null===this.value&&o.isEmpty()?t.Empty:new t(this.value,o)}return this},t.prototype.get=function(t){if(t.isEmpty())return this.value;var e=t.getFront(),n=this.children.get(e);return n?n.get(t.popFront()):null},t.prototype.setTree=function(e,n){if(e.isEmpty())return n;var r=e.getFront(),i=(this.children.get(r)||t.Empty).setTree(e.popFront(),n),o=void 0;return o=i.isEmpty()?this.children.remove(r):this.children.insert(r,i),new t(this.value,o)},t.prototype.fold=function(t){return this.fold_(kr.Empty,t)},t.prototype.fold_=function(t,e){var n={};return this.children.inorderTraversal(function(r,i){n[r]=i.fold_(t.child(r),e)}),e(t,this.value,n)},t.prototype.findOnPath=function(t,e){return this.findOnPath_(t,kr.Empty,e)},t.prototype.findOnPath_=function(t,e,n){var r=!!this.value&&n(e,this.value);if(r)return r;if(t.isEmpty())return null;var i=t.getFront(),o=this.children.get(i);return o?o.findOnPath_(t.popFront(),e.child(i),n):null},t.prototype.foreachOnPath=function(t,e){return this.foreachOnPath_(t,kr.Empty,e)},t.prototype.foreachOnPath_=function(e,n,r){if(e.isEmpty())return this;this.value&&r(n,this.value);var i=e.getFront(),o=this.children.get(i);return o?o.foreachOnPath_(e.popFront(),n.child(i),r):t.Empty},t.prototype.foreach=function(t){this.foreach_(kr.Empty,t)},t.prototype.foreach_=function(t,e){this.children.inorderTraversal(function(n,r){r.foreach_(t.child(n),e)}),this.value&&e(t,this.value)},t.prototype.foreachChild=function(t){this.children.inorderTraversal(function(e,n){n.value&&t(e,n.value)})},t.Empty=new t(null),t}(),Zi=function(){function t(t,e){this.source=t,this.path=e,this.type=Li.LISTEN_COMPLETE}return t.prototype.operationForChild=function(e){return this.path.isEmpty()?new t(this.source,kr.Empty):new t(this.source,this.path.popFront())},t}(),to=function(){function t(t,e,n){this.source=t,this.path=e,this.snap=n,this.type=Li.OVERWRITE}return t.prototype.operationForChild=function(e){return this.path.isEmpty()?new t(this.source,kr.Empty,this.snap.getImmediateChild(e)):new t(this.source,this.path.popFront(),this.snap)},t}(),eo=function(){function t(t,e,n){this.source=t,this.path=e,this.children=n,this.type=Li.MERGE}return t.prototype.operationForChild=function(e){if(this.path.isEmpty()){var n=this.children.subtree(new kr(e));return n.isEmpty()?null:n.value?new to(this.source,kr.Empty,n.value):new t(this.source,kr.Empty,n)}return on(this.path.getFront()===e,"Can't get a merge for a child not on the path of the operation"),new t(this.source,this.path.popFront(),this.children)},t.prototype.toString=function(){return"Operation("+this.path+": "+this.source.toString()+" merge: "+this.children.toString()+")"},t}(),no=function(){function t(t,e,n){this.node_=t,this.fullyInitialized_=e,this.filtered_=n}return t.prototype.isFullyInitialized=function(){return this.fullyInitialized_},t.prototype.isFiltered=function(){return this.filtered_},t.prototype.isCompleteForPath=function(t){if(t.isEmpty())return this.isFullyInitialized()&&!this.filtered_;var e=t.getFront();return this.isCompleteForChild(e)},t.prototype.isCompleteForChild=function(t){return this.isFullyInitialized()&&!this.filtered_||this.node_.hasChild(t)},t.prototype.getNode=function(){return this.node_},t}(),ro=function(){function t(t,e){this.eventCache_=t,this.serverCache_=e}return t.prototype.updateEventSnap=function(e,n,r){return new t(new no(e,n,r),this.serverCache_)},t.prototype.updateServerSnap=function(e,n,r){return new t(this.eventCache_,new no(e,n,r))},t.prototype.getEventCache=function(){return this.eventCache_},t.prototype.getCompleteEventSnap=function(){return this.eventCache_.isFullyInitialized()?this.eventCache_.getNode():null},t.prototype.getServerCache=function(){return this.serverCache_},t.prototype.getCompleteServerSnap=function(){return this.serverCache_.isFullyInitialized()?this.serverCache_.getNode():null},t.Empty=new t(new no(Ai.EMPTY_NODE,!1,!1),new no(Ai.EMPTY_NODE,!1,!1)),t}(),io=function(){function t(t,e,n,r,i){this.type=t,this.snapshotNode=e,this.childName=n,this.oldSnap=r,this.prevName=i}return t.valueChange=function(e){return new t(t.VALUE,e)},t.childAddedChange=function(e,n){return new t(t.CHILD_ADDED,n,e)},t.childRemovedChange=function(e,n){return new t(t.CHILD_REMOVED,n,e)},t.childChangedChange=function(e,n,r){return new t(t.CHILD_CHANGED,n,e,r)},t.childMovedChange=function(e,n){return new t(t.CHILD_MOVED,n,e)},t.CHILD_ADDED="child_added",t.CHILD_REMOVED="child_removed",t.CHILD_CHANGED="child_changed",t.CHILD_MOVED="child_moved",t.VALUE="value",t}(),oo=function(){function t(t){this.index_=t}return t.prototype.updateChild=function(t,e,n,r,i,o){on(t.isIndexed(this.index_),"A node must be indexed if only a child is updated");var s=t.getImmediateChild(e);return s.getChild(r).equals(n.getChild(r))&&s.isEmpty()==n.isEmpty()?t:(null!=o&&(n.isEmpty()?t.hasChild(e)?o.trackChildChange(io.childRemovedChange(e,s)):on(t.isLeafNode(),"A child remove without an old child only makes sense on a leaf node"):s.isEmpty()?o.trackChildChange(io.childAddedChange(e,n)):o.trackChildChange(io.childChangedChange(e,n,s))),t.isLeafNode()&&n.isEmpty()?t:t.updateImmediateChild(e,n).withIndex(this.index_))},t.prototype.updateFullNode=function(t,e,n){return null!=n&&(t.isLeafNode()||t.forEachChild(gi,function(t,r){e.hasChild(t)||n.trackChildChange(io.childRemovedChange(t,r))}),e.isLeafNode()||e.forEachChild(gi,function(e,r){if(t.hasChild(e)){var i=t.getImmediateChild(e);i.equals(r)||n.trackChildChange(io.childChangedChange(e,r,i))}else n.trackChildChange(io.childAddedChange(e,r))})),e.withIndex(this.index_)},t.prototype.updatePriority=function(t,e){return t.isEmpty()?Ai.EMPTY_NODE:t.updatePriority(e)},t.prototype.filtersNodes=function(){return!1},t.prototype.getIndexedFilter=function(){return this},t.prototype.getIndex=function(){return this.index_},t}(),so=function(){function t(){this.changeMap_={}}return t.prototype.trackChildChange=function(t){var e=t.type,n=t.childName;on(e==io.CHILD_ADDED||e==io.CHILD_CHANGED||e==io.CHILD_REMOVED,"Only child changes supported for tracking"),on(".priority"!==n,"Only non-priority child changes can be tracked.");var r=In(this.changeMap_,n);if(r){var i=r.type;if(e==io.CHILD_ADDED&&i==io.CHILD_REMOVED)this.changeMap_[n]=io.childChangedChange(n,t.snapshotNode,r.snapshotNode);else if(e==io.CHILD_REMOVED&&i==io.CHILD_ADDED)delete this.changeMap_[n];else if(e==io.CHILD_REMOVED&&i==io.CHILD_CHANGED)this.changeMap_[n]=io.childRemovedChange(n,r.oldSnap);else if(e==io.CHILD_CHANGED&&i==io.CHILD_ADDED)this.changeMap_[n]=io.childAddedChange(n,t.snapshotNode);else{if(e!=io.CHILD_CHANGED||i!=io.CHILD_CHANGED)throw sn("Illegal combination of changes: "+t+" occurred after "+r);this.changeMap_[n]=io.childChangedChange(n,t.snapshotNode,r.oldSnap)}}else this.changeMap_[n]=t},t.prototype.getChanges=function(){return function(t){var e=[],n=0;for(var r in t)e[n++]=t[r];return e}(this.changeMap_)},t}(),ao=new(function(){function t(){}return t.prototype.getCompleteChild=function(t){return null},t.prototype.getChildAfterChild=function(t,e,n){return null},t}()),uo=function(){function t(t,e,n){void 0===n&&(n=null),this.writes_=t,this.viewCache_=e,this.optCompleteServerCache_=n}return t.prototype.getCompleteChild=function(t){var e=this.viewCache_.getEventCache();if(e.isCompleteForChild(t))return e.getNode().getImmediateChild(t);var n=null!=this.optCompleteServerCache_?new no(this.optCompleteServerCache_,!0,!1):this.viewCache_.getServerCache();return this.writes_.calcCompleteChild(t,n)},t.prototype.getChildAfterChild=function(t,e,n){var r=null!=this.optCompleteServerCache_?this.optCompleteServerCache_:this.viewCache_.getCompleteServerSnap(),i=this.writes_.calcIndexedSlice(r,e,1,n,t);return 0===i.length?null:i[0]},t}(),co=function(){return function(t,e){this.viewCache=t,this.changes=e}}(),ho=function(){function t(t){this.filter_=t}return t.prototype.assertIndexed=function(t){on(t.getEventCache().getNode().isIndexed(this.filter_.getIndex()),"Event snap not indexed"),on(t.getServerCache().getNode().isIndexed(this.filter_.getIndex()),"Server snap not indexed")},t.prototype.applyOperation=function(e,n,r,i){var o,s,a=new so;if(n.type===Li.OVERWRITE){var u=n;u.source.fromUser?o=this.applyUserOverwrite_(e,u.path,u.snap,r,i,a):(on(u.source.fromServer,"Unknown source."),s=u.source.tagged||e.getServerCache().isFiltered()&&!u.path.isEmpty(),o=this.applyServerOverwrite_(e,u.path,u.snap,r,i,s,a))}else if(n.type===Li.MERGE){var c=n;c.source.fromUser?o=this.applyUserMerge_(e,c.path,c.children,r,i,a):(on(c.source.fromServer,"Unknown source."),s=c.source.tagged||e.getServerCache().isFiltered(),o=this.applyServerMerge_(e,c.path,c.children,r,i,s,a))}else if(n.type===Li.ACK_USER_WRITE){var h=n;o=h.revert?this.revertUserWrite_(e,h.path,r,i,a):this.ackUserWrite_(e,h.path,h.affectedTree,r,i,a)}else{if(n.type!==Li.LISTEN_COMPLETE)throw sn("Unknown operation type: "+n.type);o=this.listenComplete_(e,n.path,r,a)}var l=a.getChanges();return t.maybeAddValueEvent_(e,o,l),new co(o,l)},t.maybeAddValueEvent_=function(t,e,n){var r=e.getEventCache();if(r.isFullyInitialized()){var i=r.getNode().isLeafNode()||r.getNode().isEmpty(),o=t.getCompleteEventSnap();(n.length>0||!t.getEventCache().isFullyInitialized()||i&&!r.getNode().equals(o)||!r.getNode().getPriority().equals(o.getPriority()))&&n.push(io.valueChange(e.getCompleteEventSnap()))}},t.prototype.generateEventCacheAfterServerEvent_=function(t,e,n,r,i){var o=t.getEventCache();if(null!=n.shadowingWrite(e))return t;var s=void 0,a=void 0;if(e.isEmpty())if(on(t.getServerCache().isFullyInitialized(),"If change path is empty, we must have complete server data"),t.getServerCache().isFiltered()){var u=t.getCompleteServerSnap(),c=u instanceof Ai?u:Ai.EMPTY_NODE,h=n.calcCompleteEventChildren(c);s=this.filter_.updateFullNode(t.getEventCache().getNode(),h,i)}else{var l=n.calcCompleteEventCache(t.getCompleteServerSnap());s=this.filter_.updateFullNode(t.getEventCache().getNode(),l,i)}else{var f=e.getFront();if(".priority"==f){on(1==e.getLength(),"Can't have a priority with additional path components");var p=o.getNode();a=t.getServerCache().getNode();var d=n.calcEventCacheAfterServerOverwrite(e,p,a);s=null!=d?this.filter_.updatePriority(p,d):o.getNode()}else{var y=e.popFront(),m=void 0;if(o.isCompleteForChild(f)){a=t.getServerCache().getNode();var g=n.calcEventCacheAfterServerOverwrite(e,o.getNode(),a);m=null!=g?o.getNode().getImmediateChild(f).updateChild(y,g):o.getNode().getImmediateChild(f)}else m=n.calcCompleteChild(f,t.getServerCache());s=null!=m?this.filter_.updateChild(o.getNode(),f,m,y,r,i):o.getNode()}}return t.updateEventSnap(s,o.isFullyInitialized()||e.isEmpty(),this.filter_.filtersNodes())},t.prototype.applyServerOverwrite_=function(t,e,n,r,i,o,s){var a,u=t.getServerCache(),c=o?this.filter_:this.filter_.getIndexedFilter();if(e.isEmpty())a=c.updateFullNode(u.getNode(),n,null);else if(c.filtersNodes()&&!u.isFiltered()){var h=u.getNode().updateChild(e,n);a=c.updateFullNode(u.getNode(),h,null)}else{var l=e.getFront();if(!u.isCompleteForPath(e)&&e.getLength()>1)return t;var f=e.popFront(),p=u.getNode().getImmediateChild(l).updateChild(f,n);a=".priority"==l?c.updatePriority(u.getNode(),p):c.updateChild(u.getNode(),l,p,f,ao,null)}var d=t.updateServerSnap(a,u.isFullyInitialized()||e.isEmpty(),c.filtersNodes()),y=new uo(r,d,i);return this.generateEventCacheAfterServerEvent_(d,e,r,y,s)},t.prototype.applyUserOverwrite_=function(t,e,n,r,i,o){var s,a,u=t.getEventCache(),c=new uo(r,t,i);if(e.isEmpty())a=this.filter_.updateFullNode(t.getEventCache().getNode(),n,o),s=t.updateEventSnap(a,!0,this.filter_.filtersNodes());else{var h=e.getFront();if(".priority"===h)a=this.filter_.updatePriority(t.getEventCache().getNode(),n),s=t.updateEventSnap(a,u.isFullyInitialized(),u.isFiltered());else{var l=e.popFront(),f=u.getNode().getImmediateChild(h),p=void 0;if(l.isEmpty())p=n;else{var d=c.getCompleteChild(h);p=null!=d?".priority"===l.getBack()&&d.getChild(l.parent()).isEmpty()?d:d.updateChild(l,n):Ai.EMPTY_NODE}if(f.equals(p))s=t;else{var y=this.filter_.updateChild(u.getNode(),h,p,l,c,o);s=t.updateEventSnap(y,u.isFullyInitialized(),this.filter_.filtersNodes())}}}return s},t.cacheHasChild_=function(t,e){return t.getEventCache().isCompleteForChild(e)},t.prototype.applyUserMerge_=function(e,n,r,i,o,s){var a=this,u=e;return r.foreach(function(r,c){var h=n.child(r);t.cacheHasChild_(e,h.getFront())&&(u=a.applyUserOverwrite_(u,h,c,i,o,s))}),r.foreach(function(r,c){var h=n.child(r);t.cacheHasChild_(e,h.getFront())||(u=a.applyUserOverwrite_(u,h,c,i,o,s))}),u},t.prototype.applyMerge_=function(t,e){return e.foreach(function(e,n){t=t.updateChild(e,n)}),t},t.prototype.applyServerMerge_=function(t,e,n,r,i,o,s){var a=this;if(t.getServerCache().getNode().isEmpty()&&!t.getServerCache().isFullyInitialized())return t;var u,c=t;u=e.isEmpty()?n:$i.Empty.setTree(e,n);var h=t.getServerCache().getNode();return u.children.inorderTraversal(function(e,n){if(h.hasChild(e)){var u=t.getServerCache().getNode().getImmediateChild(e),l=a.applyMerge_(u,n);c=a.applyServerOverwrite_(c,new kr(e),l,r,i,o,s)}}),u.children.inorderTraversal(function(e,n){var u=!t.getServerCache().isCompleteForChild(e)&&null==n.value;if(!h.hasChild(e)&&!u){var l=t.getServerCache().getNode().getImmediateChild(e),f=a.applyMerge_(l,n);c=a.applyServerOverwrite_(c,new kr(e),f,r,i,o,s)}}),c},t.prototype.ackUserWrite_=function(t,e,n,r,i,o){if(null!=r.shadowingWrite(e))return t;var s=t.getServerCache().isFiltered(),a=t.getServerCache();if(null!=n.value){if(e.isEmpty()&&a.isFullyInitialized()||a.isCompleteForPath(e))return this.applyServerOverwrite_(t,e,a.getNode().getChild(e),r,i,s,o);if(e.isEmpty()){var u=$i.Empty;return a.getNode().forEachChild(ui,function(t,e){u=u.set(new kr(t),e)}),this.applyServerMerge_(t,e,u,r,i,s,o)}return t}var c=$i.Empty;return n.foreach(function(t,n){var r=e.child(t);a.isCompleteForPath(r)&&(c=c.set(t,a.getNode().getChild(r)))}),this.applyServerMerge_(t,e,c,r,i,s,o)},t.prototype.listenComplete_=function(t,e,n,r){var i=t.getServerCache(),o=t.updateServerSnap(i.getNode(),i.isFullyInitialized()||e.isEmpty(),i.isFiltered());return this.generateEventCacheAfterServerEvent_(o,e,n,ao,r)},t.prototype.revertUserWrite_=function(t,e,n,r,i){var o;if(null!=n.shadowingWrite(e))return t;var s=new uo(n,t,r),a=t.getEventCache().getNode(),u=void 0;if(e.isEmpty()||".priority"===e.getFront()){var c=void 0;if(t.getServerCache().isFullyInitialized())c=n.calcCompleteEventCache(t.getCompleteServerSnap());else{var h=t.getServerCache().getNode();on(h instanceof Ai,"serverChildren would be complete if leaf node"),c=n.calcCompleteEventChildren(h)}c=c,u=this.filter_.updateFullNode(a,c,i)}else{var l=e.getFront(),f=n.calcCompleteChild(l,t.getServerCache());null==f&&t.getServerCache().isCompleteForChild(l)&&(f=a.getImmediateChild(l)),(u=null!=f?this.filter_.updateChild(a,l,f,e.popFront(),s,i):t.getEventCache().getNode().hasChild(l)?this.filter_.updateChild(a,l,Ai.EMPTY_NODE,e.popFront(),s,i):a).isEmpty()&&t.getServerCache().isFullyInitialized()&&(o=n.calcCompleteEventCache(t.getCompleteServerSnap())).isLeafNode()&&(u=this.filter_.updateFullNode(u,o,i))}return o=t.getServerCache().isFullyInitialized()||null!=n.shadowingWrite(kr.Empty),t.updateEventSnap(u,o,this.filter_.filtersNodes())},t}(),lo=function(){function t(t){this.query_=t,this.index_=this.query_.getQueryParams().getIndex()}return t.prototype.generateEventsForChanges=function(t,e,n){var r=this,i=[],o=[];return t.forEach(function(t){t.type===io.CHILD_CHANGED&&r.index_.indexedValueChanged(t.oldSnap,t.snapshotNode)&&o.push(io.childMovedChange(t.childName,t.snapshotNode))}),this.generateEventsForType_(i,io.CHILD_REMOVED,t,n,e),this.generateEventsForType_(i,io.CHILD_ADDED,t,n,e),this.generateEventsForType_(i,io.CHILD_MOVED,o,n,e),this.generateEventsForType_(i,io.CHILD_CHANGED,t,n,e),this.generateEventsForType_(i,io.VALUE,t,n,e),i},t.prototype.generateEventsForType_=function(t,e,n,r,i){var o=this,s=n.filter(function(t){return t.type===e});s.sort(this.compareChanges_.bind(this)),s.forEach(function(e){var n=o.materializeSingleChange_(e,i);r.forEach(function(r){r.respondsTo(e.type)&&t.push(r.createEvent(n,o.query_))})})},t.prototype.materializeSingleChange_=function(t,e){return"value"===t.type||"child_removed"===t.type?t:(t.prevName=e.getPredecessorChildName(t.childName,t.snapshotNode,this.index_),t)},t.prototype.compareChanges_=function(t,e){if(null==t.childName||null==e.childName)throw sn("Should only compare child_ events.");var n=new oi(t.childName,t.snapshotNode),r=new oi(e.childName,e.snapshotNode);return this.index_.compare(n,r)},t}(),fo=function(){function t(t,e){this.query_=t,this.eventRegistrations_=[];var n=this.query_.getQueryParams(),r=new oo(n.getIndex()),i=n.getNodeFilter();this.processor_=new ho(i);var o=e.getServerCache(),s=e.getEventCache(),a=r.updateFullNode(Ai.EMPTY_NODE,o.getNode(),null),u=i.updateFullNode(Ai.EMPTY_NODE,s.getNode(),null),c=new no(a,o.isFullyInitialized(),r.filtersNodes()),h=new no(u,s.isFullyInitialized(),i.filtersNodes());this.viewCache_=new ro(h,c),this.eventGenerator_=new lo(this.query_)}return t.prototype.getQuery=function(){return this.query_},t.prototype.getServerCache=function(){return this.viewCache_.getServerCache().getNode()},t.prototype.getCompleteServerCache=function(t){var e=this.viewCache_.getCompleteServerSnap();return e&&(this.query_.getQueryParams().loadsAllData()||!t.isEmpty()&&!e.getImmediateChild(t.getFront()).isEmpty())?e.getChild(t):null},t.prototype.isEmpty=function(){return 0===this.eventRegistrations_.length},t.prototype.addEventRegistration=function(t){this.eventRegistrations_.push(t)},t.prototype.removeEventRegistration=function(t,e){var n=[];if(e){on(null==t,"A cancel should cancel all event registrations.");var r=this.query_.path;this.eventRegistrations_.forEach(function(t){e=e;var i=t.createCancelEvent(e,r);i&&n.push(i)})}if(t){for(var i=[],o=0;o<this.eventRegistrations_.length;++o){var s=this.eventRegistrations_[o];if(s.matches(t)){if(t.hasAnyCallback()){i=i.concat(this.eventRegistrations_.slice(o+1));break}}else i.push(s)}this.eventRegistrations_=i}else this.eventRegistrations_=[];return n},t.prototype.applyOperation=function(t,e,n){t.type===Li.MERGE&&null!==t.source.queryId&&(on(this.viewCache_.getCompleteServerSnap(),"We should always have a full cache before handling merges"),on(this.viewCache_.getCompleteEventSnap(),"Missing event cache, even though we have a server cache"));var r=this.viewCache_,i=this.processor_.applyOperation(r,t,e,n);return this.processor_.assertIndexed(i.viewCache),on(i.viewCache.getServerCache().isFullyInitialized()||!r.getServerCache().isFullyInitialized(),"Once a server snap is complete, it should never go back"),this.viewCache_=i.viewCache,this.generateEventsForChanges_(i.changes,i.viewCache.getEventCache().getNode(),null)},t.prototype.getInitialEvents=function(t){var e=this.viewCache_.getEventCache(),n=[];e.getNode().isLeafNode()||e.getNode().forEachChild(gi,function(t,e){n.push(io.childAddedChange(t,e))});return e.isFullyInitialized()&&n.push(io.valueChange(e.getNode())),this.generateEventsForChanges_(n,e.getNode(),t)},t.prototype.generateEventsForChanges_=function(t,e,n){var r=n?[n]:this.eventRegistrations_;return this.eventGenerator_.generateEventsForChanges(t,e,r)},t}(),po=function(){function t(){this.views_={}}return Object.defineProperty(t,"__referenceConstructor",{get:function(){return on(zi,"Reference.ts has not been loaded"),zi},set:function(t){on(!zi,"__referenceConstructor has already been defined"),zi=t},enumerable:!0,configurable:!0}),t.prototype.isEmpty=function(){return Dn(this.views_)},t.prototype.applyOperation=function(t,e,n){var r=t.source.queryId;if(null!==r){var i=In(this.views_,r);return on(null!=i,"SyncTree gave us an op for an invalid query."),i.applyOperation(t,e,n)}var o=[];return Cn(this.views_,function(r,i){o=o.concat(i.applyOperation(t,e,n))}),o},t.prototype.addEventRegistration=function(t,e,n,r,i){var o=t.queryIdentifier(),s=In(this.views_,o);if(!s){var a=n.calcCompleteEventCache(i?r:null),u=!1;a?u=!0:r instanceof Ai?(a=n.calcCompleteEventChildren(r),u=!1):(a=Ai.EMPTY_NODE,u=!1);var c=new ro(new no(a,u,!1),new no(r,i,!1));s=new fo(t,c),this.views_[o]=s}return s.addEventRegistration(e),s.getInitialEvents(e)},t.prototype.removeEventRegistration=function(e,n,r){var i=e.queryIdentifier(),o=[],s=[],a=this.hasCompleteView();if("default"===i){var u=this;Cn(this.views_,function(t,e){s=s.concat(e.removeEventRegistration(n,r)),e.isEmpty()&&(delete u.views_[t],e.getQuery().getQueryParams().loadsAllData()||o.push(e.getQuery()))})}else{var c=In(this.views_,i);c&&(s=s.concat(c.removeEventRegistration(n,r)),c.isEmpty()&&(delete this.views_[i],c.getQuery().getQueryParams().loadsAllData()||o.push(c.getQuery())))}return a&&!this.hasCompleteView()&&o.push(new t.__referenceConstructor(e.repo,e.path)),{removed:o,events:s}},t.prototype.getQueryViews=function(){var t=this;return Object.keys(this.views_).map(function(e){return t.views_[e]}).filter(function(t){return!t.getQuery().getQueryParams().loadsAllData()})},t.prototype.getCompleteServerCache=function(t){var e=null;return Cn(this.views_,function(n,r){e=e||r.getCompleteServerCache(t)}),e},t.prototype.viewForQuery=function(t){if(t.getQueryParams().loadsAllData())return this.getCompleteView();var e=t.queryIdentifier();return In(this.views_,e)},t.prototype.viewExistsForQuery=function(t){return null!=this.viewForQuery(t)},t.prototype.hasCompleteView=function(){return null!=this.getCompleteView()},t.prototype.getCompleteView=function(){var t,e,n;return(t=this.views_,(n=kn(t,function(t){return t.getQuery().getQueryParams().loadsAllData()},e))&&t[n])||null},t}(),yo=function(){function t(t){this.writeTree_=t}return t.prototype.addWrite=function(e,n){if(e.isEmpty())return new t(new $i(n));var r=this.writeTree_.findRootMostValueAndPath(e);if(null!=r){var i=r.path,o=r.value,s=kr.relativePath(i,e);return o=o.updateChild(s,n),new t(this.writeTree_.set(i,o))}var a=new $i(n);return new t(this.writeTree_.setTree(e,a))},t.prototype.addWrites=function(t,e){var n=this;return Cn(e,function(e,r){n=n.addWrite(t.child(e),r)}),n},t.prototype.removeWrite=function(e){return e.isEmpty()?t.Empty:new t(this.writeTree_.setTree(e,$i.Empty))},t.prototype.hasCompleteWrite=function(t){return null!=this.getCompleteNode(t)},t.prototype.getCompleteNode=function(t){var e=this.writeTree_.findRootMostValueAndPath(t);return null!=e?this.writeTree_.get(e.path).getChild(kr.relativePath(e.path,t)):null},t.prototype.getCompleteChildren=function(){var t=[],e=this.writeTree_.value;return null!=e?e.isLeafNode()||e.forEachChild(gi,function(e,n){t.push(new oi(e,n))}):this.writeTree_.children.inorderTraversal(function(e,n){null!=n.value&&t.push(new oi(e,n.value))}),t},t.prototype.childCompoundWrite=function(e){if(e.isEmpty())return this;var n=this.getCompleteNode(e);return new t(null!=n?new $i(n):this.writeTree_.subtree(e))},t.prototype.isEmpty=function(){return this.writeTree_.isEmpty()},t.prototype.apply=function(e){return t.applySubtreeWrite_(kr.Empty,this.writeTree_,e)},t.Empty=new t(new $i(null)),t.applySubtreeWrite_=function(e,n,r){if(null!=n.value)return r.updateChild(e,n.value);var i=null;return n.children.inorderTraversal(function(n,o){".priority"===n?(on(null!==o.value,"Priority writes must always be leaf nodes"),i=o.value):r=t.applySubtreeWrite_(e.child(n),o,r)}),r.getChild(e).isEmpty()||null===i||(r=r.updateChild(e.child(".priority"),i)),r},t}(),mo=function(){function t(){this.visibleWrites_=yo.Empty,this.allWrites_=[],this.lastWriteId_=-1}return t.prototype.childWrites=function(t){return new go(t,this)},t.prototype.addOverwrite=function(t,e,n,r){on(n>this.lastWriteId_,"Stacking an older write on top of newer ones"),void 0===r&&(r=!0),this.allWrites_.push({path:t,snap:e,writeId:n,visible:r}),r&&(this.visibleWrites_=this.visibleWrites_.addWrite(t,e)),this.lastWriteId_=n},t.prototype.addMerge=function(t,e,n){on(n>this.lastWriteId_,"Stacking an older merge on top of newer ones"),this.allWrites_.push({path:t,children:e,writeId:n,visible:!0}),this.visibleWrites_=this.visibleWrites_.addWrites(t,e),this.lastWriteId_=n},t.prototype.getWrite=function(t){for(var e=0;e<this.allWrites_.length;e++){var n=this.allWrites_[e];if(n.writeId===t)return n}return null},t.prototype.removeWrite=function(t){var e=this,n=this.allWrites_.findIndex(function(e){return e.writeId===t});on(n>=0,"removeWrite called with nonexistent writeId.");var r=this.allWrites_[n];this.allWrites_.splice(n,1);for(var i=r.visible,o=!1,s=this.allWrites_.length-1;i&&s>=0;){var a=this.allWrites_[s];a.visible&&(s>=n&&this.recordContainsPath_(a,r.path)?i=!1:r.path.contains(a.path)&&(o=!0)),s--}if(i){if(o)return this.resetTree_(),!0;if(r.snap)this.visibleWrites_=this.visibleWrites_.removeWrite(r.path);else{var u=r.children;Cn(u,function(t){e.visibleWrites_=e.visibleWrites_.removeWrite(r.path.child(t))})}return!0}return!1},t.prototype.getCompleteWriteData=function(t){return this.visibleWrites_.getCompleteNode(t)},t.prototype.calcCompleteEventCache=function(e,n,r,i){if(r||i){var o=this.visibleWrites_.childCompoundWrite(e);if(!i&&o.isEmpty())return n;if(i||null!=n||o.hasCompleteWrite(kr.Empty)){var s=t.layerTree_(this.allWrites_,function(t){return(t.visible||i)&&(!r||!~r.indexOf(t.writeId))&&(t.path.contains(e)||e.contains(t.path))},e);c=n||Ai.EMPTY_NODE;return s.apply(c)}return null}var a=this.visibleWrites_.getCompleteNode(e);if(null!=a)return a;var u=this.visibleWrites_.childCompoundWrite(e);if(u.isEmpty())return n;if(null!=n||u.hasCompleteWrite(kr.Empty)){var c=n||Ai.EMPTY_NODE;return u.apply(c)}return null},t.prototype.calcCompleteEventChildren=function(t,e){var n=Ai.EMPTY_NODE,r=this.visibleWrites_.getCompleteNode(t);if(r)return r.isLeafNode()||r.forEachChild(gi,function(t,e){n=n.updateImmediateChild(t,e)}),n;if(e){var i=this.visibleWrites_.childCompoundWrite(t);return e.forEachChild(gi,function(t,e){var r=i.childCompoundWrite(new kr(t)).apply(e);n=n.updateImmediateChild(t,r)}),i.getCompleteChildren().forEach(function(t){n=n.updateImmediateChild(t.name,t.node)}),n}return this.visibleWrites_.childCompoundWrite(t).getCompleteChildren().forEach(function(t){n=n.updateImmediateChild(t.name,t.node)}),n},t.prototype.calcEventCacheAfterServerOverwrite=function(t,e,n,r){on(n||r,"Either existingEventSnap or existingServerSnap must exist");var i=t.child(e);if(this.visibleWrites_.hasCompleteWrite(i))return null;var o=this.visibleWrites_.childCompoundWrite(i);return o.isEmpty()?r.getChild(e):o.apply(r.getChild(e))},t.prototype.calcCompleteChild=function(t,e,n){var r=t.child(e),i=this.visibleWrites_.getCompleteNode(r);return null!=i?i:n.isCompleteForChild(e)?this.visibleWrites_.childCompoundWrite(r).apply(n.getNode().getImmediateChild(e)):null},t.prototype.shadowingWrite=function(t){return this.visibleWrites_.getCompleteNode(t)},t.prototype.calcIndexedSlice=function(t,e,n,r,i,o){var s,a=this.visibleWrites_.childCompoundWrite(t),u=a.getCompleteNode(kr.Empty);if(null!=u)s=u;else{if(null==e)return[];s=a.apply(e)}if((s=s.withIndex(o)).isEmpty()||s.isLeafNode())return[];for(var c=[],h=o.getCompare(),l=i?s.getReverseIteratorFrom(n,o):s.getIteratorFrom(n,o),f=l.getNext();f&&c.length<r;)0!==h(f,n)&&c.push(f),f=l.getNext();return c},t.prototype.recordContainsPath_=function(t,e){return t.snap?t.path.contains(e):!!kn(t.children,function(n,r){return t.path.child(r).contains(e)})},t.prototype.resetTree_=function(){this.visibleWrites_=t.layerTree_(this.allWrites_,t.DefaultFilter_,kr.Empty),this.allWrites_.length>0?this.lastWriteId_=this.allWrites_[this.allWrites_.length-1].writeId:this.lastWriteId_=-1},t.DefaultFilter_=function(t){return t.visible},t.layerTree_=function(t,e,n){for(var r=yo.Empty,i=0;i<t.length;++i){var o=t[i];if(e(o)){var s=o.path,a=void 0;if(o.snap)n.contains(s)?(a=kr.relativePath(n,s),r=r.addWrite(a,o.snap)):s.contains(n)&&(a=kr.relativePath(s,n),r=r.addWrite(kr.Empty,o.snap.getChild(a)));else{if(!o.children)throw sn("WriteRecord should have .snap or .children");if(n.contains(s))a=kr.relativePath(n,s),r=r.addWrites(a,o.children);else if(s.contains(n))if((a=kr.relativePath(s,n)).isEmpty())r=r.addWrites(kr.Empty,o.children);else{var u=In(o.children,a.getFront());if(u){var c=u.getChild(a.popFront());r=r.addWrite(kr.Empty,c)}}}}}return r},t}(),go=function(){function t(t,e){this.treePath_=t,this.writeTree_=e}return t.prototype.calcCompleteEventCache=function(t,e,n){return this.writeTree_.calcCompleteEventCache(this.treePath_,t,e,n)},t.prototype.calcCompleteEventChildren=function(t){return this.writeTree_.calcCompleteEventChildren(this.treePath_,t)},t.prototype.calcEventCacheAfterServerOverwrite=function(t,e,n){return this.writeTree_.calcEventCacheAfterServerOverwrite(this.treePath_,t,e,n)},t.prototype.shadowingWrite=function(t){return this.writeTree_.shadowingWrite(this.treePath_.child(t))},t.prototype.calcIndexedSlice=function(t,e,n,r,i){return this.writeTree_.calcIndexedSlice(this.treePath_,t,e,n,r,i)},t.prototype.calcCompleteChild=function(t,e){return this.writeTree_.calcCompleteChild(this.treePath_,t,e)},t.prototype.child=function(e){return new t(this.treePath_.child(e),this.writeTree_)},t}(),vo=function(){function t(t){this.listenProvider_=t,this.syncPointTree_=$i.Empty,this.pendingWriteTree_=new mo,this.tagToQueryMap_={},this.queryToTagMap_={}}return t.prototype.applyUserOverwrite=function(t,e,n,r){return this.pendingWriteTree_.addOverwrite(t,e,n,r),r?this.applyOperationToSyncPoints_(new to(Yi.User,t,e)):[]},t.prototype.applyUserMerge=function(t,e,n){this.pendingWriteTree_.addMerge(t,e,n);var r=$i.fromObject(e);return this.applyOperationToSyncPoints_(new eo(Yi.User,t,r))},t.prototype.ackUserWrite=function(t,e){void 0===e&&(e=!1);var n=this.pendingWriteTree_.getWrite(t);if(this.pendingWriteTree_.removeWrite(t)){var r=$i.Empty;return null!=n.snap?r=r.set(kr.Empty,!0):Cn(n.children,function(t,e){r=r.set(new kr(t),e)}),this.applyOperationToSyncPoints_(new Xi(n.path,r,e))}return[]},t.prototype.applyServerOverwrite=function(t,e){return this.applyOperationToSyncPoints_(new to(Yi.Server,t,e))},t.prototype.applyServerMerge=function(t,e){var n=$i.fromObject(e);return this.applyOperationToSyncPoints_(new eo(Yi.Server,t,n))},t.prototype.applyListenComplete=function(t){return this.applyOperationToSyncPoints_(new Zi(Yi.Server,t))},t.prototype.applyTaggedQueryOverwrite=function(e,n,r){var i=this.queryKeyForTag_(r);if(null!=i){var o=t.parseQueryKey_(i),s=o.path,a=o.queryId,u=kr.relativePath(s,e),c=new to(Yi.forServerTaggedQuery(a),u,n);return this.applyTaggedOperation_(s,c)}return[]},t.prototype.applyTaggedQueryMerge=function(e,n,r){var i=this.queryKeyForTag_(r);if(i){var o=t.parseQueryKey_(i),s=o.path,a=o.queryId,u=kr.relativePath(s,e),c=$i.fromObject(n),h=new eo(Yi.forServerTaggedQuery(a),u,c);return this.applyTaggedOperation_(s,h)}return[]},t.prototype.applyTaggedListenComplete=function(e,n){var r=this.queryKeyForTag_(n);if(r){var i=t.parseQueryKey_(r),o=i.path,s=i.queryId,a=kr.relativePath(o,e),u=new Zi(Yi.forServerTaggedQuery(s),a);return this.applyTaggedOperation_(o,u)}return[]},t.prototype.addEventRegistration=function(e,n){var r=e.path,i=null,o=!1;this.syncPointTree_.foreachOnPath(r,function(t,e){var n=kr.relativePath(t,r);i=i||e.getCompleteServerCache(n),o=o||e.hasCompleteView()});var s,a=this.syncPointTree_.get(r);(a?(o=o||a.hasCompleteView(),i=i||a.getCompleteServerCache(kr.Empty)):(a=new po,this.syncPointTree_=this.syncPointTree_.set(r,a)),null!=i)?s=!0:(s=!1,i=Ai.EMPTY_NODE,this.syncPointTree_.subtree(r).foreachChild(function(t,e){var n=e.getCompleteServerCache(kr.Empty);n&&(i=i.updateImmediateChild(t,n))}));var u=a.viewExistsForQuery(e);if(!u&&!e.getQueryParams().loadsAllData()){var c=t.makeQueryKey_(e);on(!(c in this.queryToTagMap_),"View does not exist, but we have a tag");var h=t.getNextQueryTag_();this.queryToTagMap_[c]=h,this.tagToQueryMap_["_"+h]=c}var l=this.pendingWriteTree_.childWrites(r),f=a.addEventRegistration(e,n,l,i,s);if(!u&&!o){var p=a.viewForQuery(e);f=f.concat(this.setupListener_(e,p))}return f},t.prototype.removeEventRegistration=function(e,n,r){var i=this,o=e.path,s=this.syncPointTree_.get(o),a=[];if(s&&("default"===e.queryIdentifier()||s.viewExistsForQuery(e))){var u=s.removeEventRegistration(e,n,r);s.isEmpty()&&(this.syncPointTree_=this.syncPointTree_.remove(o));var c=u.removed;a=u.events;var h=-1!==c.findIndex(function(t){return t.getQueryParams().loadsAllData()}),l=this.syncPointTree_.findOnPath(o,function(t,e){return e.hasCompleteView()});if(h&&!l){var f=this.syncPointTree_.subtree(o);if(!f.isEmpty())for(var p=this.collectDistinctViewsForSubTree_(f),d=0;d<p.length;++d){var y=p[d],m=y.getQuery(),g=this.createListenerForView_(y);this.listenProvider_.startListening(t.queryForListening_(m),this.tagForQuery_(m),g.hashFn,g.onComplete)}}if(!l&&c.length>0&&!r)if(h){this.listenProvider_.stopListening(t.queryForListening_(e),null)}else c.forEach(function(e){var n=i.queryToTagMap_[t.makeQueryKey_(e)];i.listenProvider_.stopListening(t.queryForListening_(e),n)});this.removeTags_(c)}return a},t.prototype.calcCompleteEventCache=function(t,e){var n=this.pendingWriteTree_,r=this.syncPointTree_.findOnPath(t,function(e,n){var r=kr.relativePath(e,t),i=n.getCompleteServerCache(r);if(i)return i});return n.calcCompleteEventCache(t,r,e,!0)},t.prototype.collectDistinctViewsForSubTree_=function(t){return t.fold(function(t,e,n){if(e&&e.hasCompleteView())return[e.getCompleteView()];var r=[];return e&&(r=e.getQueryViews()),Cn(n,function(t,e){r=r.concat(e)}),r})},t.prototype.removeTags_=function(e){for(var n=0;n<e.length;++n){var r=e[n];if(!r.getQueryParams().loadsAllData()){var i=t.makeQueryKey_(r),o=this.queryToTagMap_[i];delete this.queryToTagMap_[i],delete this.tagToQueryMap_["_"+o]}}},t.queryForListening_=function(t){return t.getQueryParams().loadsAllData()&&!t.getQueryParams().isDefault()?t.getRef():t},t.prototype.setupListener_=function(e,n){var r=e.path,i=this.tagForQuery_(e),o=this.createListenerForView_(n),s=this.listenProvider_.startListening(t.queryForListening_(e),i,o.hashFn,o.onComplete),a=this.syncPointTree_.subtree(r);if(i)on(!a.value.hasCompleteView(),"If we're adding a query, it shouldn't be shadowed");else for(var u=a.fold(function(t,e,n){if(!t.isEmpty()&&e&&e.hasCompleteView())return[e.getCompleteView().getQuery()];var r=[];return e&&(r=r.concat(e.getQueryViews().map(function(t){return t.getQuery()}))),Cn(n,function(t,e){r=r.concat(e)}),r}),c=0;c<u.length;++c){var h=u[c];this.listenProvider_.stopListening(t.queryForListening_(h),this.tagForQuery_(h))}return s},t.prototype.createListenerForView_=function(t){var e=this,n=t.getQuery(),r=this.tagForQuery_(n);return{hashFn:function(){return(t.getServerCache()||Ai.EMPTY_NODE).hash()},onComplete:function(t){if("ok"===t)return r?e.applyTaggedListenComplete(n.path,r):e.applyListenComplete(n.path);var i=function(t,e){var n="Unknown Error";"too_big"===t?n="The data requested exceeds the maximum size that can be accessed with a single request.":"permission_denied"==t?n="Client doesn't have permission to access the desired data.":"unavailable"==t&&(n="The service is unavailable");var r=new Error(t+" at "+e.path.toString()+": "+n);return r.code=t.toUpperCase(),r}(t,n);return e.removeEventRegistration(n,null,i)}}},t.makeQueryKey_=function(t){return t.path.toString()+"$"+t.queryIdentifier()},t.parseQueryKey_=function(t){var e=t.indexOf("$");return on(-1!==e&&e<t.length-1,"Bad queryKey."),{queryId:t.substr(e+1),path:new kr(t.substr(0,e))}},t.prototype.queryKeyForTag_=function(t){return this.tagToQueryMap_["_"+t]},t.prototype.tagForQuery_=function(e){var n=t.makeQueryKey_(e);return In(this.queryToTagMap_,n)},t.getNextQueryTag_=function(){return t.nextQueryTag_++},t.prototype.applyTaggedOperation_=function(t,e){var n=this.syncPointTree_.get(t);on(n,"Missing sync point for query tag that we're tracking");var r=this.pendingWriteTree_.childWrites(t);return n.applyOperation(e,r,null)},t.prototype.applyOperationToSyncPoints_=function(t){return this.applyOperationHelper_(t,this.syncPointTree_,null,this.pendingWriteTree_.childWrites(kr.Empty))},t.prototype.applyOperationHelper_=function(t,e,n,r){if(t.path.isEmpty())return this.applyOperationDescendantsHelper_(t,e,n,r);var i=e.get(kr.Empty);null==n&&null!=i&&(n=i.getCompleteServerCache(kr.Empty));var o=[],s=t.path.getFront(),a=t.operationForChild(s),u=e.children.get(s);if(u&&a){var c=n?n.getImmediateChild(s):null,h=r.child(s);o=o.concat(this.applyOperationHelper_(a,u,c,h))}return i&&(o=o.concat(i.applyOperation(t,r,n))),o},t.prototype.applyOperationDescendantsHelper_=function(t,e,n,r){var i=this,o=e.get(kr.Empty);null==n&&null!=o&&(n=o.getCompleteServerCache(kr.Empty));var s=[];return e.children.inorderTraversal(function(e,o){var a=n?n.getImmediateChild(e):null,u=r.child(e),c=t.operationForChild(e);c&&(s=s.concat(i.applyOperationDescendantsHelper_(c,o,a,u)))}),o&&(s=s.concat(o.applyOperation(t,r,n))),s},t.nextQueryTag_=1,t}(),bo=function(){function t(){this.rootNode_=Ai.EMPTY_NODE}return t.prototype.getNode=function(t){return this.rootNode_.getChild(t)},t.prototype.updateSnapshot=function(t,e){this.rootNode_=this.rootNode_.updateChild(t,e)},t}(),_o=function(){function t(t){this.app_=t}return t.prototype.getToken=function(t){return this.app_.INTERNAL.getToken(t).then(null,function(t){return t&&"auth/token-not-initialized"===t.code?(lr("Got auth/token-not-initialized error.  Treating as null token."),null):Promise.reject(t)})},t.prototype.addTokenChangeListener=function(t){this.app_.INTERNAL.addAuthTokenListener(t)},t.prototype.removeTokenChangeListener=function(t){this.app_.INTERNAL.removeAuthTokenListener(t)},t.prototype.notifyForInvalidToken=function(){var t='Provided authentication credentials for the app named "'+this.app_.name+'" are invalid. This usually indicates your app was not initialized correctly. ';"credential"in this.app_.options?t+='Make sure the "credential" property provided to initializeApp() is authorized to access the specified "databaseURL" and is from the correct project.':"serviceAccount"in this.app_.options?t+='Make sure the "serviceAccount" property provided to initializeApp() is authorized to access the specified "databaseURL" and is from the correct project.':t+='Make sure the "apiKey" and "databaseURL" properties provided to initializeApp() match the values provided for your app at https://console.firebase.google.com/.',yr(t)},t}(),wo=function(){function t(){this.counters_={}}return t.prototype.incrementCounter=function(t,e){void 0===e&&(e=1),Sn(this.counters_,t)||(this.counters_[t]=0),this.counters_[t]+=e},t.prototype.get=function(){return hn(this.counters_)},t}(),Eo=function(){function t(){}return t.getCollection=function(t){var e=t.toString();return this.collections_[e]||(this.collections_[e]=new wo),this.collections_[e]},t.getOrCreateReporter=function(t,e){var n=t.toString();return this.reporters_[n]||(this.reporters_[n]=e()),this.reporters_[n]},t.collections_={},t.reporters_={},t}(),To=function(){function t(t){this.collection_=t,this.last_=null}return t.prototype.get=function(){var t=this.collection_.get(),e=Nn(t);return this.last_&&Cn(this.last_,function(t,n){e[t]=e[t]-n}),this.last_=t,e},t}(),So=1e4,Io=3e4,Co=function(){function t(t,e){this.server_=e,this.statsToReport_={},this.statsListener_=new To(t);var n=So+(Io-So)*Math.random();Rr(this.reportStats_.bind(this),Math.floor(n))}return t.prototype.includeStat=function(t){this.statsToReport_[t]=!0},t.prototype.reportStats_=function(){var t=this,e=this.statsListener_.get(),n={},r=!1;Cn(e,function(e,i){i>0&&Sn(t.statsToReport_,e)&&(n[e]=i,r=!0)}),r&&this.server_.reportStats(n),Rr(this.reportStats_.bind(this),Math.floor(2*Math.random()*3e5))},t}(),No=function(){function t(){this.eventLists_=[],this.recursionDepth_=0}return t.prototype.queueEvents=function(t){for(var e=null,n=0;n<t.length;n++){var r=t[n],i=r.getPath();null===e||i.equals(e.getPath())||(this.eventLists_.push(e),e=null),null===e&&(e=new Do(i)),e.add(r)}e&&this.eventLists_.push(e)},t.prototype.raiseEventsAtPath=function(t,e){this.queueEvents(e),this.raiseQueuedEventsMatchingPredicate_(function(e){return e.equals(t)})},t.prototype.raiseEventsForChangedPath=function(t,e){this.queueEvents(e),this.raiseQueuedEventsMatchingPredicate_(function(e){return e.contains(t)||t.contains(e)})},t.prototype.raiseQueuedEventsMatchingPredicate_=function(t){this.recursionDepth_++;for(var e=!0,n=0;n<this.eventLists_.length;n++){var r=this.eventLists_[n];if(r)t(r.getPath())?(this.eventLists_[n].raise(),this.eventLists_[n]=null):e=!1}e&&(this.eventLists_=[]),this.recursionDepth_--},t}(),Do=function(){function t(t){this.path_=t,this.events_=[]}return t.prototype.add=function(t){this.events_.push(t)},t.prototype.raise=function(){for(var t=0;t<this.events_.length;t++){var e=this.events_[t];if(null!==e){this.events_[t]=null;var n=e.getEventRunner();ur&&lr("event: "+e.toString()),Dr(n)}}},t.prototype.getPath=function(){return this.path_},t}(),Ao=function(){function t(t){this.allowedEvents_=t,this.listeners_={},on(Array.isArray(t)&&t.length>0,"Requires a non-empty array")}return t.prototype.trigger=function(t){for(var e=[],n=1;n<arguments.length;n++)e[n-1]=arguments[n];if(Array.isArray(this.listeners_[t]))for(var r=this.listeners_[t].slice(),i=0;i<r.length;i++)r[i].callback.apply(r[i].context,e)},t.prototype.on=function(t,e,n){this.validateEventType_(t),this.listeners_[t]=this.listeners_[t]||[],this.listeners_[t].push({callback:e,context:n});var r=this.getInitialEvent(t);r&&e.apply(n,r)},t.prototype.off=function(t,e,n){this.validateEventType_(t);for(var r=this.listeners_[t]||[],i=0;i<r.length;i++)if(r[i].callback===e&&(!n||n===r[i].context))return void r.splice(i,1)},t.prototype.validateEventType_=function(t){on(this.allowedEvents_.find(function(e){return e===t}),"Unknown event: "+t)},t}(),Ro=function(t){function e(){var e,n,r=t.call(this,["visible"])||this;return"undefined"!=typeof document&&void 0!==document.addEventListener&&(void 0!==document.hidden?(n="visibilitychange",e="hidden"):void 0!==document.mozHidden?(n="mozvisibilitychange",e="mozHidden"):void 0!==document.msHidden?(n="msvisibilitychange",e="msHidden"):void 0!==document.webkitHidden&&(n="webkitvisibilitychange",e="webkitHidden")),r.visible_=!0,n&&document.addEventListener(n,function(){var t=!document[e];t!==r.visible_&&(r.visible_=t,r.trigger("visible",t))},!1),r}return Je(e,t),e.getInstance=function(){return new e},e.prototype.getInitialEvent=function(t){return on("visible"===t,"Unknown event type: "+t),[this.visible_]},e}(Ao),ko=function(t){function e(){var e=t.call(this,["online"])||this;return e.online_=!0,"undefined"==typeof window||void 0===window.addEventListener||dn()||(window.addEventListener("online",function(){e.online_||(e.online_=!0,e.trigger("online",!0))},!1),window.addEventListener("offline",function(){e.online_&&(e.online_=!1,e.trigger("online",!1))},!1)),e}return Je(e,t),e.getInstance=function(){return new e},e.prototype.getInitialEvent=function(t){return on("online"===t,"Unknown event type: "+t),[this.online_]},e.prototype.currentlyOnline=function(){return this.online_},e}(Ao),Oo=function(){function t(t){this.onMessage_=t,this.pendingResponses=[],this.currentResponseNum=0,this.closeAfterResponse=-1,this.onClose=null}return t.prototype.closeAfter=function(t,e){this.closeAfterResponse=t,this.onClose=e,this.closeAfterResponse<this.currentResponseNum&&(this.onClose(),this.onClose=null)},t.prototype.handleResponse=function(t,e){var n=this;this.pendingResponses[t]=e;for(var r=function(){var t=i.pendingResponses[i.currentResponseNum];delete i.pendingResponses[i.currentResponseNum];for(var e=function(e){t[e]&&Dr(function(){n.onMessage_(t[e])})},r=0;r<t.length;++r)e(r);if(i.currentResponseNum===i.closeAfterResponse)return i.onClose&&(i.onClose(),i.onClose=null),"break";i.currentResponseNum++},i=this;this.pendingResponses[this.currentResponseNum];){if("break"===r())break}},t}(),Po="pLPCommand",Lo="pRTLPCB",Mo=function(){function t(t,e,n,r){this.connId=t,this.repoInfo=e,this.transportSessionId=n,this.lastSessionId=r,this.bytesSent=0,this.bytesReceived=0,this.everConnected_=!1,this.log_=fr(t),this.stats_=Eo.getCollection(e),this.urlFn=function(t){return e.connectionURL(Pr,t)}}return t.prototype.open=function(t,e){var n=this;this.curSegmentNum=0,this.onDisconnect_=e,this.myPacketOrderer=new Oo(t),this.isClosed_=!1,this.connectTimeoutTimer_=setTimeout(function(){n.log_("Timed out trying to connect."),n.onClosed_(),n.connectTimeoutTimer_=null},Math.floor(3e4)),function(t){if(mn()||"complete"===document.readyState)t();else{var e=!1,n=function(){document.body?e||(e=!0,t()):setTimeout(n,Math.floor(10))};document.addEventListener?(document.addEventListener("DOMContentLoaded",n,!1),window.addEventListener("load",n,!1)):document.attachEvent&&(document.attachEvent("onreadystatechange",function(){"complete"===document.readyState&&n()}),window.attachEvent("onload",n))}}(function(){if(!n.isClosed_){n.scriptTagHolder=new xo(function(){for(var t=[],e=0;e<arguments.length;e++)t[e]=arguments[e];var r=t[0],i=t[1],o=t[2];if(n.incrementIncomingBytes_(t),n.scriptTagHolder)if(n.connectTimeoutTimer_&&(clearTimeout(n.connectTimeoutTimer_),n.connectTimeoutTimer_=null),n.everConnected_=!0,"start"==r)n.id=i,n.password=o;else{if("close"!==r)throw new Error("Unrecognized command received: "+r);i?(n.scriptTagHolder.sendNewPolls=!1,n.myPacketOrderer.closeAfter(i,function(){n.onClosed_()})):n.onClosed_()}},function(){for(var t=[],e=0;e<arguments.length;e++)t[e]=arguments[e];var r=t[0],i=t[1];n.incrementIncomingBytes_(t),n.myPacketOrderer.handleResponse(r,i)},function(){n.onClosed_()},n.urlFn);var t={start:"t"};t.ser=Math.floor(1e8*Math.random()),n.scriptTagHolder.uniqueCallbackIdentifier&&(t.cb=n.scriptTagHolder.uniqueCallbackIdentifier),t.v="5",n.transportSessionId&&(t.s=n.transportSessionId),n.lastSessionId&&(t.ls=n.lastSessionId),!mn()&&"undefined"!=typeof location&&location.href&&-1!==location.href.indexOf("firebaseio.com")&&(t.r="f");var e=n.urlFn(t);n.log_("Connecting via long-poll to "+e),n.scriptTagHolder.addTag(e,function(){})}})},t.prototype.start=function(){this.scriptTagHolder.startLongPoll(this.id,this.password),this.addDisconnectPingFrame(this.id,this.password)},t.forceAllow=function(){t.forceAllow_=!0},t.forceDisallow=function(){t.forceDisallow_=!0},t.isAvailable=function(){return t.forceAllow_||!t.forceDisallow_&&"undefined"!=typeof document&&null!=document.createElement&&!("object"==typeof window&&window.chrome&&window.chrome.extension&&!/^chrome/.test(window.location.href))&&!("object"==typeof Windows&&"object"==typeof Windows.UI)&&!mn()},t.prototype.markConnectionHealthy=function(){},t.prototype.shutdown_=function(){this.isClosed_=!0,this.scriptTagHolder&&(this.scriptTagHolder.close(),this.scriptTagHolder=null),this.myDisconnFrame&&(document.body.removeChild(this.myDisconnFrame),this.myDisconnFrame=null),this.connectTimeoutTimer_&&(clearTimeout(this.connectTimeoutTimer_),this.connectTimeoutTimer_=null)},t.prototype.onClosed_=function(){this.isClosed_||(this.log_("Longpoll is closing itself"),this.shutdown_(),this.onDisconnect_&&(this.onDisconnect_(this.everConnected_),this.onDisconnect_=null))},t.prototype.close=function(){this.isClosed_||(this.log_("Longpoll is being closed."),this.shutdown_())},t.prototype.send=function(t){var e=En(t);this.bytesSent+=e.length,this.stats_.incrementCounter("bytes_sent",e.length);for(var n,r=(n=an(e),un.encodeByteArray(n,!0)),i=Tr(r,1840),o=0;o<i.length;o++)this.scriptTagHolder.enqueueSegment(this.curSegmentNum,i.length,i[o]),this.curSegmentNum++},t.prototype.addDisconnectPingFrame=function(t,e){if(!mn()){this.myDisconnFrame=document.createElement("iframe");var n={dframe:"t"};n.id=t,n.pw=e,this.myDisconnFrame.src=this.urlFn(n),this.myDisconnFrame.style.display="none",document.body.appendChild(this.myDisconnFrame)}},t.prototype.incrementIncomingBytes_=function(t){var e=En(t).length;this.bytesReceived+=e,this.stats_.incrementCounter("bytes_received",e)},t}(),xo=function(){function t(e,n,r,i){if(this.onDisconnect=r,this.urlFn=i,this.outstandingRequests=new ji,this.pendingSegs=[],this.currentSerial=Math.floor(1e8*Math.random()),this.sendNewPolls=!0,mn())this.commandCB=e,this.onMessageCB=n;else{this.uniqueCallbackIdentifier=or(),window[Po+this.uniqueCallbackIdentifier]=e,window[Lo+this.uniqueCallbackIdentifier]=n,this.myIFrame=t.createIFrame_();var o="";if(this.myIFrame.src&&"javascript:"===this.myIFrame.src.substr(0,"javascript:".length))o='<script>document.domain="'+document.domain+'";<\/script>';var s="<html><body>"+o+"</body></html>";try{this.myIFrame.doc.open(),this.myIFrame.doc.write(s),this.myIFrame.doc.close()}catch(t){lr("frame writing exception"),t.stack&&lr(t.stack),lr(t)}}}return t.createIFrame_=function(){var t=document.createElement("iframe");if(t.style.display="none",!document.body)throw"Document body has not initialized. Wait to initialize Firebase until after the document is ready.";document.body.appendChild(t);try{t.contentWindow.document||lr("No IE domain setting required")}catch(n){var e=document.domain;t.src="javascript:void((function(){document.open();document.domain='"+e+"';document.close();})())"}return t.contentDocument?t.doc=t.contentDocument:t.contentWindow?t.doc=t.contentWindow.document:t.document&&(t.doc=t.document),t},t.prototype.close=function(){var e=this;if(this.alive=!1,this.myIFrame&&(this.myIFrame.doc.body.innerHTML="",setTimeout(function(){null!==e.myIFrame&&(document.body.removeChild(e.myIFrame),e.myIFrame=null)},Math.floor(0))),mn()&&this.myID){var n={disconn:"t"};n.id=this.myID,n.pw=this.myPW;var r=this.urlFn(n);t.nodeRestRequest(r)}var i=this.onDisconnect;i&&(this.onDisconnect=null,i())},t.prototype.startLongPoll=function(t,e){for(this.myID=t,this.myPW=e,this.alive=!0;this.newRequest_(););},t.prototype.newRequest_=function(){if(this.alive&&this.sendNewPolls&&this.outstandingRequests.count()<(this.pendingSegs.length>0?2:1)){this.currentSerial++;var t={};t.id=this.myID,t.pw=this.myPW,t.ser=this.currentSerial;for(var e=this.urlFn(t),n="",r=0;this.pendingSegs.length>0;){if(!(this.pendingSegs[0].d.length+30+n.length<=1870))break;var i=this.pendingSegs.shift();n=n+"&seg"+r+"="+i.seg+"&ts"+r+"="+i.ts+"&d"+r+"="+i.d,r++}return e+=n,this.addLongPollTag_(e,this.currentSerial),!0}return!1},t.prototype.enqueueSegment=function(t,e,n){this.pendingSegs.push({seg:t,ts:e,d:n}),this.alive&&this.newRequest_()},t.prototype.addLongPollTag_=function(t,e){var n=this;this.outstandingRequests.add(e,1);var r=function(){n.outstandingRequests.remove(e),n.newRequest_()},i=setTimeout(r,Math.floor(25e3));this.addTag(t,function(){clearTimeout(i),r()})},t.prototype.addTag=function(t,e){var n=this;mn()?this.doNodeLongPoll(t,e):setTimeout(function(){try{if(!n.sendNewPolls)return;var r=n.myIFrame.doc.createElement("script");r.type="text/javascript",r.async=!0,r.src=t,r.onload=r.onreadystatechange=function(){var t=r.readyState;t&&"loaded"!==t&&"complete"!==t||(r.onload=r.onreadystatechange=null,r.parentNode&&r.parentNode.removeChild(r),e())},r.onerror=function(){lr("Long-poll script failed to load: "+t),n.sendNewPolls=!1,n.close()},n.myIFrame.doc.body.appendChild(r)}catch(t){}},Math.floor(1))},t}(),Fo=null;"undefined"!=typeof MozWebSocket?Fo=MozWebSocket:"undefined"!=typeof WebSocket&&(Fo=WebSocket);var Uo=function(){function t(e,n,r,i){this.connId=e,this.keepaliveTimer=null,this.frames=null,this.totalFrames=0,this.bytesSent=0,this.bytesReceived=0,this.log_=fr(this.connId),this.stats_=Eo.getCollection(n),this.connURL=t.connectionURL_(n,r,i)}return t.connectionURL_=function(t,e,n){var r={v:"5"};return!mn()&&"undefined"!=typeof location&&location.href&&-1!==location.href.indexOf("firebaseio.com")&&(r.r="f"),e&&(r.s=e),n&&(r.ls=n),t.connectionURL("websocket",r)},t.prototype.open=function(t,e){var n=this;this.onDisconnect=e,this.onMessage=t,this.log_("Websocket connecting to "+this.connURL),this.everConnected_=!1,nr.set("previous_websocket_failure",!0);try{if(mn()){var r=nn?"AdminNode":"Node",i={headers:{"User-Agent":"Firebase/5/"+Yn.SDK_VERSION+"/"+process.platform+"/"+r}},o=process.env,s=0==this.connURL.indexOf("wss://")?o.HTTPS_PROXY||o.https_proxy:o.HTTP_PROXY||o.http_proxy;s&&(i.proxy={origin:s}),this.mySock=new Fo(this.connURL,[],i)}else this.mySock=new Fo(this.connURL)}catch(t){this.log_("Error instantiating WebSocket.");var a=t.message||t.data;return a&&this.log_(a),void this.onClosed_()}this.mySock.onopen=function(){n.log_("Websocket connected."),n.everConnected_=!0},this.mySock.onclose=function(){n.log_("Websocket connection was disconnected."),n.mySock=null,n.onClosed_()},this.mySock.onmessage=function(t){n.handleIncomingFrame(t)},this.mySock.onerror=function(t){n.log_("WebSocket error.  Closing connection.");var e=t.message||t.data;e&&n.log_(e),n.onClosed_()}},t.prototype.start=function(){},t.forceDisallow=function(){t.forceDisallow_=!0},t.isAvailable=function(){var e=!1;if("undefined"!=typeof navigator&&navigator.userAgent){var n=navigator.userAgent.match(/Android ([0-9]{0,}\.[0-9]{0,})/);n&&n.length>1&&parseFloat(n[1])<4.4&&(e=!0)}return!e&&null!==Fo&&!t.forceDisallow_},t.previouslyFailed=function(){return nr.isInMemoryStorage||!0===nr.get("previous_websocket_failure")},t.prototype.markConnectionHealthy=function(){nr.remove("previous_websocket_failure")},t.prototype.appendFrame_=function(t){if(this.frames.push(t),this.frames.length==this.totalFrames){var e=this.frames.join("");this.frames=null;var n=wn(e);this.onMessage(n)}},t.prototype.handleNewFrameCount_=function(t){this.totalFrames=t,this.frames=[]},t.prototype.extractFrameCount_=function(t){if(on(null===this.frames,"We already have a frame buffer"),t.length<=6){var e=Number(t);if(!isNaN(e))return this.handleNewFrameCount_(e),null}return this.handleNewFrameCount_(1),t},t.prototype.handleIncomingFrame=function(t){if(null!==this.mySock){var e=t.data;if(this.bytesReceived+=e.length,this.stats_.incrementCounter("bytes_received",e.length),this.resetKeepAlive(),null!==this.frames)this.appendFrame_(e);else{var n=this.extractFrameCount_(e);null!==n&&this.appendFrame_(n)}}},t.prototype.send=function(t){this.resetKeepAlive();var e=En(t);this.bytesSent+=e.length,this.stats_.incrementCounter("bytes_sent",e.length);var n=Tr(e,16384);n.length>1&&this.sendString_(String(n.length));for(var r=0;r<n.length;r++)this.sendString_(n[r])},t.prototype.shutdown_=function(){this.isClosed_=!0,this.keepaliveTimer&&(clearInterval(this.keepaliveTimer),this.keepaliveTimer=null),this.mySock&&(this.mySock.close(),this.mySock=null)},t.prototype.onClosed_=function(){this.isClosed_||(this.log_("WebSocket is closing itself"),this.shutdown_(),this.onDisconnect&&(this.onDisconnect(this.everConnected_),this.onDisconnect=null))},t.prototype.close=function(){this.isClosed_||(this.log_("WebSocket is being closed"),this.shutdown_())},t.prototype.resetKeepAlive=function(){var t=this;clearInterval(this.keepaliveTimer),this.keepaliveTimer=setInterval(function(){t.mySock&&t.sendString_("0"),t.resetKeepAlive()},Math.floor(45e3))},t.prototype.sendString_=function(t){try{this.mySock.send(t)}catch(t){this.log_("Exception thrown from WebSocket.send():",t.message||t.data,"Closing connection."),setTimeout(this.onClosed_.bind(this),0)}},t.responsesRequiredToBeHealthy=2,t.healthyTimeout=3e4,t}(),qo=function(){function t(t){this.initTransports_(t)}return Object.defineProperty(t,"ALL_TRANSPORTS",{get:function(){return[Mo,Uo]},enumerable:!0,configurable:!0}),t.prototype.initTransports_=function(e){var n=Uo&&Uo.isAvailable(),r=n&&!Uo.previouslyFailed();if(e.webSocketOnly&&(n||yr("wss:// URL used, but browser isn't known to support websockets.  Trying anyway."),r=!0),r)this.transports_=[Uo];else{var i=this.transports_=[];Sr(t.ALL_TRANSPORTS,function(t,e){e&&e.isAvailable()&&i.push(e)})}},t.prototype.initialTransport=function(){if(this.transports_.length>0)return this.transports_[0];throw new Error("No transports available")},t.prototype.upgradeTransport=function(){return this.transports_.length>1?this.transports_[1]:null},t}(),Bo=function(){function t(t,e,n,r,i,o,s){this.id=t,this.repoInfo_=e,this.onMessage_=n,this.onReady_=r,this.onDisconnect_=i,this.onKill_=o,this.lastSessionId=s,this.connectionCount=0,this.pendingDataMessages=[],this.state_=0,this.log_=fr("c:"+this.id+":"),this.transportManager_=new qo(e),this.log_("Connection created"),this.start_()}return t.prototype.start_=function(){var t=this,e=this.transportManager_.initialTransport();this.conn_=new e(this.nextTransportId_(),this.repoInfo_,void 0,this.lastSessionId),this.primaryResponsesRequired_=e.responsesRequiredToBeHealthy||0;var n=this.connReceiver_(this.conn_),r=this.disconnReceiver_(this.conn_);this.tx_=this.conn_,this.rx_=this.conn_,this.secondaryConn_=null,this.isHealthy_=!1,setTimeout(function(){t.conn_&&t.conn_.open(n,r)},Math.floor(0));var i=e.healthyTimeout||0;i>0&&(this.healthyTimeout_=Rr(function(){t.healthyTimeout_=null,t.isHealthy_||(t.conn_&&t.conn_.bytesReceived>102400?(t.log_("Connection exceeded healthy timeout but has received "+t.conn_.bytesReceived+" bytes.  Marking connection healthy."),t.isHealthy_=!0,t.conn_.markConnectionHealthy()):t.conn_&&t.conn_.bytesSent>10240?t.log_("Connection exceeded healthy timeout but has sent "+t.conn_.bytesSent+" bytes.  Leaving connection alive."):(t.log_("Closing unhealthy connection after timeout."),t.close()))},Math.floor(i)))},t.prototype.nextTransportId_=function(){return"c:"+this.id+":"+this.connectionCount++},t.prototype.disconnReceiver_=function(t){var e=this;return function(n){t===e.conn_?e.onConnectionLost_(n):t===e.secondaryConn_?(e.log_("Secondary connection lost."),e.onSecondaryConnectionLost_()):e.log_("closing an old connection")}},t.prototype.connReceiver_=function(t){var e=this;return function(n){2!=e.state_&&(t===e.rx_?e.onPrimaryMessageReceived_(n):t===e.secondaryConn_?e.onSecondaryMessageReceived_(n):e.log_("message on old connection"))}},t.prototype.sendRequest=function(t){var e={t:"d",d:t};this.sendData_(e)},t.prototype.tryCleanupConnection=function(){this.tx_===this.secondaryConn_&&this.rx_===this.secondaryConn_&&(this.log_("cleaning up and promoting a connection: "+this.secondaryConn_.connId),this.conn_=this.secondaryConn_,this.secondaryConn_=null)},t.prototype.onSecondaryControl_=function(t){if("t"in t){var e=t.t;"a"===e?this.upgradeIfSecondaryHealthy_():"r"===e?(this.log_("Got a reset on secondary, closing it"),this.secondaryConn_.close(),this.tx_!==this.secondaryConn_&&this.rx_!==this.secondaryConn_||this.close()):"o"===e&&(this.log_("got pong on secondary."),this.secondaryResponsesRequired_--,this.upgradeIfSecondaryHealthy_())}},t.prototype.onSecondaryMessageReceived_=function(t){var e=wr("t",t),n=wr("d",t);if("c"==e)this.onSecondaryControl_(n);else{if("d"!=e)throw new Error("Unknown protocol layer: "+e);this.pendingDataMessages.push(n)}},t.prototype.upgradeIfSecondaryHealthy_=function(){this.secondaryResponsesRequired_<=0?(this.log_("Secondary connection is healthy."),this.isHealthy_=!0,this.secondaryConn_.markConnectionHealthy(),this.proceedWithUpgrade_()):(this.log_("sending ping on secondary."),this.secondaryConn_.send({t:"c",d:{t:"p",d:{}}}))},t.prototype.proceedWithUpgrade_=function(){this.secondaryConn_.start(),this.log_("sending client ack on secondary"),this.secondaryConn_.send({t:"c",d:{t:"a",d:{}}}),this.log_("Ending transmission on primary"),this.conn_.send({t:"c",d:{t:"n",d:{}}}),this.tx_=this.secondaryConn_,this.tryCleanupConnection()},t.prototype.onPrimaryMessageReceived_=function(t){var e=wr("t",t),n=wr("d",t);"c"==e?this.onControl_(n):"d"==e&&this.onDataMessage_(n)},t.prototype.onDataMessage_=function(t){this.onPrimaryResponse_(),this.onMessage_(t)},t.prototype.onPrimaryResponse_=function(){this.isHealthy_||(this.primaryResponsesRequired_--,this.primaryResponsesRequired_<=0&&(this.log_("Primary connection is healthy."),this.isHealthy_=!0,this.conn_.markConnectionHealthy()))},t.prototype.onControl_=function(t){var e=wr("t",t);if("d"in t){var n=t.d;if("h"===e)this.onHandshake_(n);else if("n"===e){this.log_("recvd end transmission on primary"),this.rx_=this.secondaryConn_;for(var r=0;r<this.pendingDataMessages.length;++r)this.onDataMessage_(this.pendingDataMessages[r]);this.pendingDataMessages=[],this.tryCleanupConnection()}else"s"===e?this.onConnectionShutdown_(n):"r"===e?this.onReset_(n):"e"===e?pr("Server Error: "+n):"o"===e?(this.log_("got pong on primary."),this.onPrimaryResponse_(),this.sendPingOnPrimaryIfNecessary_()):pr("Unknown control packet command: "+e)}},t.prototype.onHandshake_=function(t){var e=t.ts,n=t.v,r=t.h;this.sessionId=t.s,this.repoInfo_.updateHost(r),0==this.state_&&(this.conn_.start(),this.onConnectionEstablished_(this.conn_,e),"5"!==n&&yr("Protocol version mismatch detected"),this.tryStartUpgrade_())},t.prototype.tryStartUpgrade_=function(){var t=this.transportManager_.upgradeTransport();t&&this.startUpgrade_(t)},t.prototype.startUpgrade_=function(t){var e=this;this.secondaryConn_=new t(this.nextTransportId_(),this.repoInfo_,this.sessionId),this.secondaryResponsesRequired_=t.responsesRequiredToBeHealthy||0;var n=this.connReceiver_(this.secondaryConn_),r=this.disconnReceiver_(this.secondaryConn_);this.secondaryConn_.open(n,r),Rr(function(){e.secondaryConn_&&(e.log_("Timed out trying to upgrade."),e.secondaryConn_.close())},Math.floor(6e4))},t.prototype.onReset_=function(t){this.log_("Reset packet received.  New host: "+t),this.repoInfo_.updateHost(t),1===this.state_?this.close():(this.closeConnections_(),this.start_())},t.prototype.onConnectionEstablished_=function(t,e){var n=this;this.log_("Realtime connection established."),this.conn_=t,this.state_=1,this.onReady_&&(this.onReady_(e,this.sessionId),this.onReady_=null),0===this.primaryResponsesRequired_?(this.log_("Primary connection is healthy."),this.isHealthy_=!0):Rr(function(){n.sendPingOnPrimaryIfNecessary_()},Math.floor(5e3))},t.prototype.sendPingOnPrimaryIfNecessary_=function(){this.isHealthy_||1!==this.state_||(this.log_("sending ping on primary."),this.sendData_({t:"c",d:{t:"p",d:{}}}))},t.prototype.onSecondaryConnectionLost_=function(){var t=this.secondaryConn_;this.secondaryConn_=null,this.tx_!==t&&this.rx_!==t||this.close()},t.prototype.onConnectionLost_=function(t){this.conn_=null,t||0!==this.state_?1===this.state_&&this.log_("Realtime connection lost."):(this.log_("Realtime connection failed."),this.repoInfo_.isCacheableHost()&&(nr.remove("host:"+this.repoInfo_.host),this.repoInfo_.internalHost=this.repoInfo_.host)),this.close()},t.prototype.onConnectionShutdown_=function(t){this.log_("Connection shutdown command received. Shutting down..."),this.onKill_&&(this.onKill_(t),this.onKill_=null),this.onDisconnect_=null,this.close()},t.prototype.sendData_=function(t){if(1!==this.state_)throw"Connection is not connected";this.tx_.send(t)},t.prototype.close=function(){2!==this.state_&&(this.log_("Closing realtime connection."),this.state_=2,this.closeConnections_(),this.onDisconnect_&&(this.onDisconnect_(),this.onDisconnect_=null))},t.prototype.closeConnections_=function(){this.log_("Shutting down all connections"),this.conn_&&(this.conn_.close(),this.conn_=null),this.secondaryConn_&&(this.secondaryConn_.close(),this.secondaryConn_=null),this.healthyTimeout_&&(clearTimeout(this.healthyTimeout_),this.healthyTimeout_=null)},t}(),Vo=function(){function t(){}return t.prototype.put=function(t,e,n,r){},t.prototype.merge=function(t,e,n,r){},t.prototype.refreshAuthToken=function(t){},t.prototype.onDisconnectPut=function(t,e,n){},t.prototype.onDisconnectMerge=function(t,e,n){},t.prototype.onDisconnectCancel=function(t,e){},t.prototype.reportStats=function(t){},t}(),Wo=1e3,jo=3e5,Ko=function(t){function e(n,r,i,o,s,a){var u=t.call(this)||this;if(u.repoInfo_=n,u.onDataUpdate_=r,u.onConnectStatus_=i,u.onServerInfoUpdate_=o,u.authTokenProvider_=s,u.authOverride_=a,u.id=e.nextPersistentConnectionId_++,u.log_=fr("p:"+u.id+":"),u.interruptReasons_={},u.listens_={},u.outstandingPuts_=[],u.outstandingPutCount_=0,u.onDisconnectRequestQueue_=[],u.connected_=!1,u.reconnectDelay_=Wo,u.maxReconnectDelay_=jo,u.securityDebugCallback_=null,u.lastSessionId=null,u.establishConnectionTimer_=null,u.visible_=!1,u.requestCBHash_={},u.requestNumber_=0,u.realtime_=null,u.authToken_=null,u.forceTokenRefresh_=!1,u.invalidAuthTokenCount_=0,u.firstConnection_=!0,u.lastConnectionAttemptTime_=null,u.lastConnectionEstablishedTime_=null,a&&!mn())throw new Error("Auth override specified in options, but not supported on non Node.js platforms");return u.scheduleConnect_(0),Ro.getInstance().on("visible",u.onVisible_,u),-1===n.host.indexOf("fblocal")&&ko.getInstance().on("online",u.onOnline_,u),u}return Je(e,t),e.prototype.sendRequest=function(t,e,n){var r=++this.requestNumber_,i={r:r,a:t,b:e};this.log_(En(i)),on(this.connected_,"sendRequest call when we're not connected not allowed."),this.realtime_.sendRequest(i),n&&(this.requestCBHash_[r]=n)},e.prototype.listen=function(t,e,n,r){var i=t.queryIdentifier(),o=t.path.toString();this.log_("Listen called for "+o+" "+i),this.listens_[o]=this.listens_[o]||{},on(t.getQueryParams().isDefault()||!t.getQueryParams().loadsAllData(),"listen() called for non-default but complete query"),on(!this.listens_[o][i],"listen() called twice for same path/queryId.");var s={onComplete:r,hashFn:e,query:t,tag:n};this.listens_[o][i]=s,this.connected_&&this.sendListen_(s)},e.prototype.sendListen_=function(t){var n=this,r=t.query,i=r.path.toString(),o=r.queryIdentifier();this.log_("Listen on "+i+" for "+o);var s={p:i};t.tag&&(s.q=r.queryObject(),s.t=t.tag),s.h=t.hashFn(),this.sendRequest("q",s,function(s){var a=s.d,u=s.s;e.warnOnListenWarnings_(a,r),(n.listens_[i]&&n.listens_[i][o])===t&&(n.log_("listen response",s),"ok"!==u&&n.removeListen_(i,o),t.onComplete&&t.onComplete(u,a))})},e.warnOnListenWarnings_=function(t,e){if(t&&"object"==typeof t&&Sn(t,"w")){var n=In(t,"w");if(Array.isArray(n)&&~n.indexOf("no_index")){var r='".indexOn": "'+e.getQueryParams().getIndex().toString()+'"',i=e.path.toString();yr("Using an unspecified index. Your data will be downloaded and filtered on the client. Consider adding "+r+" at "+i+" to your security rules for better performance.")}}},e.prototype.refreshAuthToken=function(t){this.authToken_=t,this.log_("Auth token refreshed"),this.authToken_?this.tryAuth():this.connected_&&this.sendRequest("unauth",{},function(){}),this.reduceReconnectDelayIfAdminCredential_(t)},e.prototype.reduceReconnectDelayIfAdminCredential_=function(t){var e;(t&&40===t.length||"object"==typeof(e=Tn(t).claims)&&!0===e.admin)&&(this.log_("Admin auth credential detected.  Reducing max reconnect time."),this.maxReconnectDelay_=3e4)},e.prototype.tryAuth=function(){var t,e=this;if(this.connected_&&this.authToken_){var n=this.authToken_,r=(t=Tn(n).claims)&&"object"==typeof t&&t.hasOwnProperty("iat")?"auth":"gauth",i={cred:n};null===this.authOverride_?i.noauth=!0:"object"==typeof this.authOverride_&&(i.authvar=this.authOverride_),this.sendRequest(r,i,function(t){var r=t.s,i=t.d||"error";e.authToken_===n&&("ok"===r?e.invalidAuthTokenCount_=0:e.onAuthRevoked_(r,i))})}},e.prototype.unlisten=function(t,e){var n=t.path.toString(),r=t.queryIdentifier();this.log_("Unlisten called for "+n+" "+r),on(t.getQueryParams().isDefault()||!t.getQueryParams().loadsAllData(),"unlisten() called for non-default but complete query"),this.removeListen_(n,r)&&this.connected_&&this.sendUnlisten_(n,r,t.queryObject(),e)},e.prototype.sendUnlisten_=function(t,e,n,r){this.log_("Unlisten on "+t+" for "+e);var i={p:t};r&&(i.q=n,i.t=r),this.sendRequest("n",i)},e.prototype.onDisconnectPut=function(t,e,n){this.connected_?this.sendOnDisconnect_("o",t,e,n):this.onDisconnectRequestQueue_.push({pathString:t,action:"o",data:e,onComplete:n})},e.prototype.onDisconnectMerge=function(t,e,n){this.connected_?this.sendOnDisconnect_("om",t,e,n):this.onDisconnectRequestQueue_.push({pathString:t,action:"om",data:e,onComplete:n})},e.prototype.onDisconnectCancel=function(t,e){this.connected_?this.sendOnDisconnect_("oc",t,null,e):this.onDisconnectRequestQueue_.push({pathString:t,action:"oc",data:null,onComplete:e})},e.prototype.sendOnDisconnect_=function(t,e,n,r){var i={p:e,d:n};this.log_("onDisconnect "+t,i),this.sendRequest(t,i,function(t){r&&setTimeout(function(){r(t.s,t.d)},Math.floor(0))})},e.prototype.put=function(t,e,n,r){this.putInternal("p",t,e,n,r)},e.prototype.merge=function(t,e,n,r){this.putInternal("m",t,e,n,r)},e.prototype.putInternal=function(t,e,n,r,i){var o={p:e,d:n};void 0!==i&&(o.h=i),this.outstandingPuts_.push({action:t,request:o,onComplete:r}),this.outstandingPutCount_++;var s=this.outstandingPuts_.length-1;this.connected_?this.sendPut_(s):this.log_("Buffering put: "+e)},e.prototype.sendPut_=function(t){var e=this,n=this.outstandingPuts_[t].action,r=this.outstandingPuts_[t].request,i=this.outstandingPuts_[t].onComplete;this.outstandingPuts_[t].queued=this.connected_,this.sendRequest(n,r,function(r){e.log_(n+" response",r),delete e.outstandingPuts_[t],e.outstandingPutCount_--,0===e.outstandingPutCount_&&(e.outstandingPuts_=[]),i&&i(r.s,r.d)})},e.prototype.reportStats=function(t){var e=this;if(this.connected_){var n={c:t};this.log_("reportStats",n),this.sendRequest("s",n,function(t){if("ok"!==t.s){var n=t.d;e.log_("reportStats","Error sending stats: "+n)}})}},e.prototype.onDataMessage_=function(t){if("r"in t){this.log_("from server: "+En(t));var e=t.r,n=this.requestCBHash_[e];n&&(delete this.requestCBHash_[e],n(t.b))}else{if("error"in t)throw"A server-side error has occurred: "+t.error;"a"in t&&this.onDataPush_(t.a,t.b)}},e.prototype.onDataPush_=function(t,e){this.log_("handleServerMessage",t,e),"d"===t?this.onDataUpdate_(e.p,e.d,!1,e.t):"m"===t?this.onDataUpdate_(e.p,e.d,!0,e.t):"c"===t?this.onListenRevoked_(e.p,e.q):"ac"===t?this.onAuthRevoked_(e.s,e.d):"sd"===t?this.onSecurityDebugPacket_(e):pr("Unrecognized action received from server: "+En(t)+"\nAre you using the latest client?")},e.prototype.onReady_=function(t,e){this.log_("connection ready"),this.connected_=!0,this.lastConnectionEstablishedTime_=(new Date).getTime(),this.handleTimestamp_(t),this.lastSessionId=e,this.firstConnection_&&this.sendConnectStats_(),this.restoreState_(),this.firstConnection_=!1,this.onConnectStatus_(!0)},e.prototype.scheduleConnect_=function(t){var e=this;on(!this.realtime_,"Scheduling a connect when we're already connected/ing?"),this.establishConnectionTimer_&&clearTimeout(this.establishConnectionTimer_),this.establishConnectionTimer_=setTimeout(function(){e.establishConnectionTimer_=null,e.establishConnection_()},Math.floor(t))},e.prototype.onVisible_=function(t){t&&!this.visible_&&this.reconnectDelay_===this.maxReconnectDelay_&&(this.log_("Window became visible.  Reducing delay."),this.reconnectDelay_=Wo,this.realtime_||this.scheduleConnect_(0)),this.visible_=t},e.prototype.onOnline_=function(t){t?(this.log_("Browser went online."),this.reconnectDelay_=Wo,this.realtime_||this.scheduleConnect_(0)):(this.log_("Browser went offline.  Killing connection."),this.realtime_&&this.realtime_.close())},e.prototype.onRealtimeDisconnect_=function(){if(this.log_("data client disconnected"),this.connected_=!1,this.realtime_=null,this.cancelSentTransactions_(),this.requestCBHash_={},this.shouldReconnect_()){if(this.visible_){if(this.lastConnectionEstablishedTime_){(new Date).getTime()-this.lastConnectionEstablishedTime_>3e4&&(this.reconnectDelay_=Wo),this.lastConnectionEstablishedTime_=null}}else this.log_("Window isn't visible.  Delaying reconnect."),this.reconnectDelay_=this.maxReconnectDelay_,this.lastConnectionAttemptTime_=(new Date).getTime();var t=(new Date).getTime()-this.lastConnectionAttemptTime_,e=Math.max(0,this.reconnectDelay_-t);e=Math.random()*e,this.log_("Trying to reconnect in "+e+"ms"),this.scheduleConnect_(e),this.reconnectDelay_=Math.min(this.maxReconnectDelay_,1.3*this.reconnectDelay_)}this.onConnectStatus_(!1)},e.prototype.establishConnection_=function(){if(this.shouldReconnect_()){this.log_("Making a connection attempt"),this.lastConnectionAttemptTime_=(new Date).getTime(),this.lastConnectionEstablishedTime_=null;var t=this.onDataMessage_.bind(this),n=this.onReady_.bind(this),r=this.onRealtimeDisconnect_.bind(this),i=this.id+":"+e.nextConnectionId_++,o=this,s=this.lastSessionId,a=!1,u=null,c=function(){u?u.close():(a=!0,r())};this.realtime_={close:c,sendRequest:function(t){on(u,"sendRequest call when we're not connected not allowed."),u.sendRequest(t)}};var h=this.forceTokenRefresh_;this.forceTokenRefresh_=!1,this.authTokenProvider_.getToken(h).then(function(e){a?lr("getToken() completed but was canceled"):(lr("getToken() completed. Creating connection."),o.authToken_=e&&e.accessToken,u=new Bo(i,o.repoInfo_,t,n,r,function(t){yr(t+" ("+o.repoInfo_.toString()+")"),o.interrupt("server_kill")},s))}).then(null,function(t){o.log_("Failed to get token: "+t),a||(nn&&yr(t),c())})}},e.prototype.interrupt=function(t){lr("Interrupting connection for reason: "+t),this.interruptReasons_[t]=!0,this.realtime_?this.realtime_.close():(this.establishConnectionTimer_&&(clearTimeout(this.establishConnectionTimer_),this.establishConnectionTimer_=null),this.connected_&&this.onRealtimeDisconnect_())},e.prototype.resume=function(t){lr("Resuming connection for reason: "+t),delete this.interruptReasons_[t],Dn(this.interruptReasons_)&&(this.reconnectDelay_=Wo,this.realtime_||this.scheduleConnect_(0))},e.prototype.handleTimestamp_=function(t){var e=t-(new Date).getTime();this.onServerInfoUpdate_({serverTimeOffset:e})},e.prototype.cancelSentTransactions_=function(){for(var t=0;t<this.outstandingPuts_.length;t++){var e=this.outstandingPuts_[t];e&&"h"in e.request&&e.queued&&(e.onComplete&&e.onComplete("disconnect"),delete this.outstandingPuts_[t],this.outstandingPutCount_--)}0===this.outstandingPutCount_&&(this.outstandingPuts_=[])},e.prototype.onListenRevoked_=function(t,e){var n;n=e?e.map(function(t){return Er(t)}).join("$"):"default";var r=this.removeListen_(t,n);r&&r.onComplete&&r.onComplete("permission_denied")},e.prototype.removeListen_=function(t,e){var n,r=new kr(t).toString();return void 0!==this.listens_[r]?(n=this.listens_[r][e],delete this.listens_[r][e],0===An(this.listens_[r])&&delete this.listens_[r]):n=void 0,n},e.prototype.onAuthRevoked_=function(t,e){lr("Auth token revoked: "+t+"/"+e),this.authToken_=null,this.forceTokenRefresh_=!0,this.realtime_.close(),"invalid_token"!==t&&"permission_denied"!==t||(this.invalidAuthTokenCount_++,this.invalidAuthTokenCount_>=3&&(this.reconnectDelay_=3e4,this.authTokenProvider_.notifyForInvalidToken()))},e.prototype.onSecurityDebugPacket_=function(t){this.securityDebugCallback_?this.securityDebugCallback_(t):"msg"in t&&console.log("FIREBASE: "+t.msg.replace("\n","\nFIREBASE: "))},e.prototype.restoreState_=function(){var t=this;this.tryAuth(),Cn(this.listens_,function(e,n){Cn(n,function(e,n){t.sendListen_(n)})});for(var e=0;e<this.outstandingPuts_.length;e++)this.outstandingPuts_[e]&&this.sendPut_(e);for(;this.onDisconnectRequestQueue_.length;){var n=this.onDisconnectRequestQueue_.shift();this.sendOnDisconnect_(n.action,n.pathString,n.data,n.onComplete)}},e.prototype.sendConnectStats_=function(){var t={},e="js";nn?e="admin_node":en&&(e="node"),t["sdk."+e+"."+Yn.SDK_VERSION.replace(/\./g,"-")]=1,dn()?t["framework.cordova"]=1:yn()&&(t["framework.reactnative"]=1),this.reportStats(t)},e.prototype.shouldReconnect_=function(){var t=ko.getInstance().currentlyOnline();return Dn(this.interruptReasons_)&&t},e.nextPersistentConnectionId_=0,e.nextConnectionId_=0,e}(Vo),Qo=function(t){function e(e,n,r){var i=t.call(this)||this;return i.repoInfo_=e,i.onDataUpdate_=n,i.authTokenProvider_=r,i.log_=fr("p:rest:"),i.listens_={},i}return Je(e,t),e.prototype.reportStats=function(t){throw new Error("Method not implemented.")},e.getListenId_=function(t,e){return void 0!==e?"tag$"+e:(on(t.getQueryParams().isDefault(),"should have a tag if it's not a default query."),t.path.toString())},e.prototype.listen=function(t,n,r,i){var o=this,s=t.path.toString();this.log_("Listen called for "+s+" "+t.queryIdentifier());var a=e.getListenId_(t,r),u={};this.listens_[a]=u;var c=t.getQueryParams().toRestQueryStringParameters();this.restRequest_(s+".json",c,function(t,e){var n=e;(404===t&&(n=null,t=null),null===t&&o.onDataUpdate_(s,n,!1,r),In(o.listens_,a)===u)&&i(t?401==t?"permission_denied":"rest_error:"+t:"ok",null)})},e.prototype.unlisten=function(t,n){var r=e.getListenId_(t,n);delete this.listens_[r]},e.prototype.refreshAuthToken=function(t){},e.prototype.restRequest_=function(t,e,n){var r=this;void 0===e&&(e={}),e.format="export",this.authTokenProvider_.getToken(!1).then(function(i){var o=i&&i.accessToken;o&&(e.auth=o);var s,a=(r.repoInfo_.secure?"https://":"http://")+r.repoInfo_.host+t+"?ns="+r.repoInfo_.namespace+(s=[],Cn(e,function(t,e){Array.isArray(e)?e.forEach(function(e){s.push(encodeURIComponent(t)+"="+encodeURIComponent(e))}):s.push(encodeURIComponent(t)+"="+encodeURIComponent(e))}),s.length?"&"+s.join("&"):"");r.log_("Sending REST request for "+a);var u=new XMLHttpRequest;u.onreadystatechange=function(){if(n&&4===u.readyState){r.log_("REST Response for "+a+" received. status:",u.status,"response:",u.responseText);var t=null;if(u.status>=200&&u.status<300){try{t=wn(u.responseText)}catch(t){yr("Failed to parse JSON response for "+a+": "+u.responseText)}n(null,t)}else 401!==u.status&&404!==u.status&&yr("Got unsuccessful REST response for "+a+" Status: "+u.status),n(u.status);n=null}},u.open("GET",a,!0),u.send()})},e}(Vo),Ho=function(){function t(t,e,n){var r=this;this.repoInfo_=t,this.app=n,this.dataUpdateCount=0,this.statsListener_=null,this.eventQueue_=new No,this.nextWriteId_=1,this.interceptServerDataCallback_=null,this.onDisconnect_=new Ki,this.persistentConnection_=null;var i=new _o(n);if(this.stats_=Eo.getCollection(t),e||Ar())this.server_=new Qo(this.repoInfo_,this.onDataUpdate_.bind(this),i),setTimeout(this.onConnectStatus_.bind(this,!0),0);else{var o=n.options.databaseAuthVariableOverride;if(void 0!==o&&null!==o){if("object"!=typeof o)throw new Error("Only objects are supported for option databaseAuthVariableOverride");try{En(o)}catch(t){throw new Error("Invalid authOverride provided: "+t)}}this.persistentConnection_=new Ko(this.repoInfo_,this.onDataUpdate_.bind(this),this.onConnectStatus_.bind(this),this.onServerInfoUpdate_.bind(this),i,o),this.server_=this.persistentConnection_}i.addTokenChangeListener(function(t){r.server_.refreshAuthToken(t)}),this.statsReporter_=Eo.getOrCreateReporter(t,function(){return new Co(r.stats_,r.server_)}),this.transactions_init_(),this.infoData_=new bo,this.infoSyncTree_=new vo({startListening:function(t,e,n,i){var o=[],s=r.infoData_.getNode(t.path);return s.isEmpty()||(o=r.infoSyncTree_.applyServerOverwrite(t.path,s),setTimeout(function(){i("ok")},0)),o},stopListening:function(){}}),this.updateInfo_("connected",!1),this.serverSyncTree_=new vo({startListening:function(t,e,n,i){return r.server_.listen(t,n,e,function(e,n){var o=i(e,n);r.eventQueue_.raiseEventsForChangedPath(t.path,o)}),[]},stopListening:function(t,e){r.server_.unlisten(t,e)}})}return t.prototype.toString=function(){return(this.repoInfo_.secure?"https://":"http://")+this.repoInfo_.host},t.prototype.name=function(){return this.repoInfo_.namespace},t.prototype.serverTime=function(){var t=this.infoData_.getNode(new kr(".info/serverTimeOffset")).val()||0;return(new Date).getTime()+t},t.prototype.generateServerValues=function(){return(t=(t={timestamp:this.serverTime()})||{}).timestamp=t.timestamp||(new Date).getTime(),t;var t},t.prototype.onDataUpdate_=function(t,e,n,r){this.dataUpdateCount++;var i=new kr(t);e=this.interceptServerDataCallback_?this.interceptServerDataCallback_(t,e):e;var o=[];if(r)if(n){var s=Rn(e,function(t){return Oi(t)});o=this.serverSyncTree_.applyTaggedQueryMerge(i,s,r)}else{var a=Oi(e);o=this.serverSyncTree_.applyTaggedQueryOverwrite(i,a,r)}else if(n){var u=Rn(e,function(t){return Oi(t)});o=this.serverSyncTree_.applyServerMerge(i,u)}else{var c=Oi(e);o=this.serverSyncTree_.applyServerOverwrite(i,c)}var h=i;o.length>0&&(h=this.rerunTransactions_(i)),this.eventQueue_.raiseEventsForChangedPath(h,o)},t.prototype.interceptServerData_=function(t){this.interceptServerDataCallback_=t},t.prototype.onConnectStatus_=function(t){this.updateInfo_("connected",t),!1===t&&this.runOnDisconnectEvents_()},t.prototype.onServerInfoUpdate_=function(t){var e=this;Sr(t,function(t,n){e.updateInfo_(n,t)})},t.prototype.updateInfo_=function(t,e){var n=new kr("/.info/"+t),r=Oi(e);this.infoData_.updateSnapshot(n,r);var i=this.infoSyncTree_.applyServerOverwrite(n,r);this.eventQueue_.raiseEventsForChangedPath(n,i)},t.prototype.getNextWriteId_=function(){return this.nextWriteId_++},t.prototype.setWithPriority=function(t,e,n,r){var i=this;this.log_("set",{path:t.toString(),value:e,priority:n});var o=this.generateServerValues(),s=Oi(e,n),a=Hi(s,o),u=this.getNextWriteId_(),c=this.serverSyncTree_.applyUserOverwrite(t,a,u,!0);this.eventQueue_.queueEvents(c),this.server_.put(t.toString(),s.val(!0),function(e,n){var o="ok"===e;o||yr("set at "+t+" failed: "+e);var s=i.serverSyncTree_.ackUserWrite(u,!o);i.eventQueue_.raiseEventsForChangedPath(t,s),i.callOnCompleteCallback(r,e,n)});var h=this.abortTransactions_(t);this.rerunTransactions_(h),this.eventQueue_.raiseEventsForChangedPath(h,[])},t.prototype.update=function(t,e,n){var r=this;this.log_("update",{path:t.toString(),value:e});var i=!0,o=this.generateServerValues(),s={};if(Cn(e,function(t,e){i=!1;var n=Oi(e);s[t]=Hi(n,o)}),i)lr("update() called with empty data.  Don't do anything."),this.callOnCompleteCallback(n,"ok");else{var a=this.getNextWriteId_(),u=this.serverSyncTree_.applyUserMerge(t,s,a);this.eventQueue_.queueEvents(u),this.server_.merge(t.toString(),e,function(e,i){var o="ok"===e;o||yr("update at "+t+" failed: "+e);var s=r.serverSyncTree_.ackUserWrite(a,!o),u=s.length>0?r.rerunTransactions_(t):t;r.eventQueue_.raiseEventsForChangedPath(u,s),r.callOnCompleteCallback(n,e,i)}),Cn(e,function(e){var n=r.abortTransactions_(t.child(e));r.rerunTransactions_(n)}),this.eventQueue_.raiseEventsForChangedPath(t,[])}},t.prototype.runOnDisconnectEvents_=function(){var t=this;this.log_("onDisconnectEvents");var e=this.generateServerValues(),n=[];(function(t,e){var n=new Ki;return t.forEachTree(new kr(""),function(t,r){n.remember(t,Hi(r,e))}),n})(this.onDisconnect_,e).forEachTree(kr.Empty,function(e,r){n=n.concat(t.serverSyncTree_.applyServerOverwrite(e,r));var i=t.abortTransactions_(e);t.rerunTransactions_(i)}),this.onDisconnect_=new Ki,this.eventQueue_.raiseEventsForChangedPath(kr.Empty,n)},t.prototype.onDisconnectCancel=function(t,e){var n=this;this.server_.onDisconnectCancel(t.toString(),function(r,i){"ok"===r&&n.onDisconnect_.forget(t),n.callOnCompleteCallback(e,r,i)})},t.prototype.onDisconnectSet=function(t,e,n){var r=this,i=Oi(e);this.server_.onDisconnectPut(t.toString(),i.val(!0),function(e,o){"ok"===e&&r.onDisconnect_.remember(t,i),r.callOnCompleteCallback(n,e,o)})},t.prototype.onDisconnectSetWithPriority=function(t,e,n,r){var i=this,o=Oi(e,n);this.server_.onDisconnectPut(t.toString(),o.val(!0),function(e,n){"ok"===e&&i.onDisconnect_.remember(t,o),i.callOnCompleteCallback(r,e,n)})},t.prototype.onDisconnectUpdate=function(t,e,n){var r=this;if(Dn(e))return lr("onDisconnect().update() called with empty data.  Don't do anything."),void this.callOnCompleteCallback(n,"ok");this.server_.onDisconnectMerge(t.toString(),e,function(i,o){"ok"===i&&Cn(e,function(e,n){var i=Oi(n);r.onDisconnect_.remember(t.child(e),i)}),r.callOnCompleteCallback(n,i,o)})},t.prototype.addEventCallbackForQuery=function(t,e){var n;n=".info"===t.path.getFront()?this.infoSyncTree_.addEventRegistration(t,e):this.serverSyncTree_.addEventRegistration(t,e),this.eventQueue_.raiseEventsAtPath(t.path,n)},t.prototype.removeEventCallbackForQuery=function(t,e){var n;n=".info"===t.path.getFront()?this.infoSyncTree_.removeEventRegistration(t,e):this.serverSyncTree_.removeEventRegistration(t,e),this.eventQueue_.raiseEventsAtPath(t.path,n)},t.prototype.interrupt=function(){this.persistentConnection_&&this.persistentConnection_.interrupt("repo_interrupt")},t.prototype.resume=function(){this.persistentConnection_&&this.persistentConnection_.resume("repo_interrupt")},t.prototype.stats=function(t){if(void 0===t&&(t=!1),"undefined"!=typeof console){var e;t?(this.statsListener_||(this.statsListener_=new To(this.stats_)),e=this.statsListener_.get()):e=this.stats_.get();var n=Object.keys(e).reduce(function(t,e){return Math.max(e.length,t)},0);Cn(e,function(t,e){for(var r=t.length;r<n+2;r++)t+=" ";console.log(t+e)})}},t.prototype.statsIncrementCounter=function(t){this.stats_.incrementCounter(t),this.statsReporter_.includeStat(t)},t.prototype.log_=function(){for(var t=[],e=0;e<arguments.length;e++)t[e]=arguments[e];var n="";this.persistentConnection_&&(n=this.persistentConnection_.id+":"),lr.apply(void 0,[n].concat(t))},t.prototype.callOnCompleteCallback=function(t,e,n){t&&Dr(function(){if("ok"==e)t(null);else{var r=(e||"error").toUpperCase(),i=r;n&&(i+=": "+n);var o=new Error(i);o.code=r,t(o)}})},Object.defineProperty(t.prototype,"database",{get:function(){return this.__database||(this.__database=new ns(this))},enumerable:!0,configurable:!0}),t}(),Go=function(){function t(e){this.indexedFilter_=new oo(e.getIndex()),this.index_=e.getIndex(),this.startPost_=t.getStartPost_(e),this.endPost_=t.getEndPost_(e)}return t.prototype.getStartPost=function(){return this.startPost_},t.prototype.getEndPost=function(){return this.endPost_},t.prototype.matches=function(t){return this.index_.compare(this.getStartPost(),t)<=0&&this.index_.compare(t,this.getEndPost())<=0},t.prototype.updateChild=function(t,e,n,r,i,o){return this.matches(new oi(e,n))||(n=Ai.EMPTY_NODE),this.indexedFilter_.updateChild(t,e,n,r,i,o)},t.prototype.updateFullNode=function(t,e,n){e.isLeafNode()&&(e=Ai.EMPTY_NODE);var r=e.withIndex(this.index_);r=r.updatePriority(Ai.EMPTY_NODE);var i=this;return e.forEachChild(gi,function(t,e){i.matches(new oi(t,e))||(r=r.updateImmediateChild(t,Ai.EMPTY_NODE))}),this.indexedFilter_.updateFullNode(t,r,n)},t.prototype.updatePriority=function(t,e){return t},t.prototype.filtersNodes=function(){return!0},t.prototype.getIndexedFilter=function(){return this.indexedFilter_},t.prototype.getIndex=function(){return this.index_},t.getStartPost_=function(t){if(t.hasStart()){var e=t.getIndexStartName();return t.getIndex().makePost(t.getIndexStartValue(),e)}return t.getIndex().minPost()},t.getEndPost_=function(t){if(t.hasEnd()){var e=t.getIndexEndName();return t.getIndex().makePost(t.getIndexEndValue(),e)}return t.getIndex().maxPost()},t}(),zo=function(){function t(t){this.rangedFilter_=new Go(t),this.index_=t.getIndex(),this.limit_=t.getLimit(),this.reverse_=!t.isViewFromLeft()}return t.prototype.updateChild=function(t,e,n,r,i,o){return this.rangedFilter_.matches(new oi(e,n))||(n=Ai.EMPTY_NODE),t.getImmediateChild(e).equals(n)?t:t.numChildren()<this.limit_?this.rangedFilter_.getIndexedFilter().updateChild(t,e,n,r,i,o):this.fullLimitUpdateChild_(t,e,n,i,o)},t.prototype.updateFullNode=function(t,e,n){var r;if(e.isLeafNode()||e.isEmpty())r=Ai.EMPTY_NODE.withIndex(this.index_);else if(2*this.limit_<e.numChildren()&&e.isIndexed(this.index_)){r=Ai.EMPTY_NODE.withIndex(this.index_);var i=void 0;i=this.reverse_?e.getReverseIteratorFrom(this.rangedFilter_.getEndPost(),this.index_):e.getIteratorFrom(this.rangedFilter_.getStartPost(),this.index_);for(var o=0;i.hasNext()&&o<this.limit_;){var s=i.getNext();if(!(this.reverse_?this.index_.compare(this.rangedFilter_.getStartPost(),s)<=0:this.index_.compare(s,this.rangedFilter_.getEndPost())<=0))break;r=r.updateImmediateChild(s.name,s.node),o++}}else{r=(r=e.withIndex(this.index_)).updatePriority(Ai.EMPTY_NODE);var a=void 0,u=void 0,c=void 0;i=void 0;if(this.reverse_){i=r.getReverseIterator(this.index_),a=this.rangedFilter_.getEndPost(),u=this.rangedFilter_.getStartPost();var h=this.index_.getCompare();c=function(t,e){return h(e,t)}}else i=r.getIterator(this.index_),a=this.rangedFilter_.getStartPost(),u=this.rangedFilter_.getEndPost(),c=this.index_.getCompare();o=0;for(var l=!1;i.hasNext();){s=i.getNext();!l&&c(a,s)<=0&&(l=!0),l&&o<this.limit_&&c(s,u)<=0?o++:r=r.updateImmediateChild(s.name,Ai.EMPTY_NODE)}}return this.rangedFilter_.getIndexedFilter().updateFullNode(t,r,n)},t.prototype.updatePriority=function(t,e){return t},t.prototype.filtersNodes=function(){return!0},t.prototype.getIndexedFilter=function(){return this.rangedFilter_.getIndexedFilter()},t.prototype.getIndex=function(){return this.index_},t.prototype.fullLimitUpdateChild_=function(t,e,n,r,i){var o;if(this.reverse_){var s=this.index_.getCompare();o=function(t,e){return s(e,t)}}else o=this.index_.getCompare();var a=t;on(a.numChildren()==this.limit_,"");var u=new oi(e,n),c=this.reverse_?a.getFirstChild(this.index_):a.getLastChild(this.index_),h=this.rangedFilter_.matches(u);if(a.hasChild(e)){for(var l=a.getImmediateChild(e),f=r.getChildAfterChild(this.index_,c,this.reverse_);null!=f&&(f.name==e||a.hasChild(f.name));)f=r.getChildAfterChild(this.index_,f,this.reverse_);var p=null==f?1:o(f,u);if(h&&!n.isEmpty()&&p>=0)return null!=i&&i.trackChildChange(io.childChangedChange(e,n,l)),a.updateImmediateChild(e,n);null!=i&&i.trackChildChange(io.childRemovedChange(e,l));var d=a.updateImmediateChild(e,Ai.EMPTY_NODE);return null!=f&&this.rangedFilter_.matches(f)?(null!=i&&i.trackChildChange(io.childAddedChange(f.name,f.node)),d.updateImmediateChild(f.name,f.node)):d}return n.isEmpty()?t:h&&o(c,u)>=0?(null!=i&&(i.trackChildChange(io.childRemovedChange(c.name,c.node)),i.trackChildChange(io.childAddedChange(e,n))),a.updateImmediateChild(e,n).updateImmediateChild(c.name,Ai.EMPTY_NODE)):t},t}(),Yo=function(){function t(){this.limitSet_=!1,this.startSet_=!1,this.startNameSet_=!1,this.endSet_=!1,this.endNameSet_=!1,this.limit_=0,this.viewFrom_="",this.indexStartValue_=null,this.indexStartName_="",this.indexEndValue_=null,this.indexEndName_="",this.index_=gi}return t.prototype.hasStart=function(){return this.startSet_},t.prototype.isViewFromLeft=function(){return""===this.viewFrom_?this.startSet_:this.viewFrom_===t.WIRE_PROTOCOL_CONSTANTS_.VIEW_FROM_LEFT},t.prototype.getIndexStartValue=function(){return on(this.startSet_,"Only valid if start has been set"),this.indexStartValue_},t.prototype.getIndexStartName=function(){return on(this.startSet_,"Only valid if start has been set"),this.startNameSet_?this.indexStartName_:gr},t.prototype.hasEnd=function(){return this.endSet_},t.prototype.getIndexEndValue=function(){return on(this.endSet_,"Only valid if end has been set"),this.indexEndValue_},t.prototype.getIndexEndName=function(){return on(this.endSet_,"Only valid if end has been set"),this.endNameSet_?this.indexEndName_:vr},t.prototype.hasLimit=function(){return this.limitSet_},t.prototype.hasAnchoredLimit=function(){return this.limitSet_&&""!==this.viewFrom_},t.prototype.getLimit=function(){return on(this.limitSet_,"Only valid if limit has been set"),this.limit_},t.prototype.getIndex=function(){return this.index_},t.prototype.copy_=function(){var e=new t;return e.limitSet_=this.limitSet_,e.limit_=this.limit_,e.startSet_=this.startSet_,e.indexStartValue_=this.indexStartValue_,e.startNameSet_=this.startNameSet_,e.indexStartName_=this.indexStartName_,e.endSet_=this.endSet_,e.indexEndValue_=this.indexEndValue_,e.endNameSet_=this.endNameSet_,e.indexEndName_=this.indexEndName_,e.index_=this.index_,e.viewFrom_=this.viewFrom_,e},t.prototype.limit=function(t){var e=this.copy_();return e.limitSet_=!0,e.limit_=t,e.viewFrom_="",e},t.prototype.limitToFirst=function(e){var n=this.copy_();return n.limitSet_=!0,n.limit_=e,n.viewFrom_=t.WIRE_PROTOCOL_CONSTANTS_.VIEW_FROM_LEFT,n},t.prototype.limitToLast=function(e){var n=this.copy_();return n.limitSet_=!0,n.limit_=e,n.viewFrom_=t.WIRE_PROTOCOL_CONSTANTS_.VIEW_FROM_RIGHT,n},t.prototype.startAt=function(t,e){var n=this.copy_();return n.startSet_=!0,void 0===t&&(t=null),n.indexStartValue_=t,null!=e?(n.startNameSet_=!0,n.indexStartName_=e):(n.startNameSet_=!1,n.indexStartName_=""),n},t.prototype.endAt=function(t,e){var n=this.copy_();return n.endSet_=!0,void 0===t&&(t=null),n.indexEndValue_=t,void 0!==e?(n.endNameSet_=!0,n.indexEndName_=e):(n.endNameSet_=!1,n.indexEndName_=""),n},t.prototype.orderBy=function(t){var e=this.copy_();return e.index_=t,e},t.prototype.getQueryObject=function(){var e=t.WIRE_PROTOCOL_CONSTANTS_,n={};if(this.startSet_&&(n[e.INDEX_START_VALUE]=this.indexStartValue_,this.startNameSet_&&(n[e.INDEX_START_NAME]=this.indexStartName_)),this.endSet_&&(n[e.INDEX_END_VALUE]=this.indexEndValue_,this.endNameSet_&&(n[e.INDEX_END_NAME]=this.indexEndName_)),this.limitSet_){n[e.LIMIT]=this.limit_;var r=this.viewFrom_;""===r&&(r=this.isViewFromLeft()?e.VIEW_FROM_LEFT:e.VIEW_FROM_RIGHT),n[e.VIEW_FROM]=r}return this.index_!==gi&&(n[e.INDEX]=this.index_.toString()),n},t.prototype.loadsAllData=function(){return!(this.startSet_||this.endSet_||this.limitSet_)},t.prototype.isDefault=function(){return this.loadsAllData()&&this.index_==gi},t.prototype.getNodeFilter=function(){return this.loadsAllData()?new oo(this.getIndex()):this.hasLimit()?new zo(this):new Go(this)},t.prototype.toRestQueryStringParameters=function(){var e,n=t.REST_QUERY_CONSTANTS_,r={};return this.isDefault()?r:(this.index_===gi?e=n.PRIORITY_INDEX:this.index_===Mi?e=n.VALUE_INDEX:this.index_===ui?e=n.KEY_INDEX:(on(this.index_ instanceof xi,"Unrecognized index type!"),e=this.index_.toString()),r[n.ORDER_BY]=En(e),this.startSet_&&(r[n.START_AT]=En(this.indexStartValue_),this.startNameSet_&&(r[n.START_AT]+=","+En(this.indexStartName_))),this.endSet_&&(r[n.END_AT]=En(this.indexEndValue_),this.endNameSet_&&(r[n.END_AT]+=","+En(this.indexEndName_))),this.limitSet_&&(this.isViewFromLeft()?r[n.LIMIT_TO_FIRST]=this.limit_:r[n.LIMIT_TO_LAST]=this.limit_),r)},t.WIRE_PROTOCOL_CONSTANTS_={INDEX_START_VALUE:"sp",INDEX_START_NAME:"sn",INDEX_END_VALUE:"ep",INDEX_END_NAME:"en",LIMIT:"l",VIEW_FROM:"vf",VIEW_FROM_LEFT:"l",VIEW_FROM_RIGHT:"r",INDEX:"i"},t.REST_QUERY_CONSTANTS_={ORDER_BY:"orderBy",PRIORITY_INDEX:"$priority",VALUE_INDEX:"$value",KEY_INDEX:"$key",START_AT:"startAt",END_AT:"endAt",LIMIT_TO_FIRST:"limitToFirst",LIMIT_TO_LAST:"limitToLast"},t.DEFAULT=new t,t}(),Xo=function(t){function e(e,n){if(!(e instanceof Ho))throw new Error("new Reference() no longer supported - use app.database().");return t.call(this,e,n,Yo.DEFAULT,!1)||this}return Je(e,t),e.prototype.getKey=function(){return Fn("Reference.key",0,0,arguments.length),this.path.isEmpty()?null:this.path.getBack()},e.prototype.child=function(t){return Fn("Reference.child",1,1,arguments.length),"number"==typeof t?t=String(t):t instanceof kr||(null===this.path.getFront()?function(t,e,n,r){n&&(n=n.replace(/^\/*\.info(\/|$)/,"/")),Zr(t,e,n,r)}("Reference.child",1,t,!1):Zr("Reference.child",1,t,!1)),new e(this.repo,this.path.child(t))},e.prototype.getParent=function(){Fn("Reference.parent",0,0,arguments.length);var t=this.path.parent();return null===t?null:new e(this.repo,t)},e.prototype.getRoot=function(){Fn("Reference.root",0,0,arguments.length);for(var t=this;null!==t.getParent();)t=t.getParent();return t},e.prototype.databaseProp=function(){return this.repo.database},e.prototype.set=function(t,e){Fn("Reference.set",1,2,arguments.length),ti("Reference.set",this.path),Gr("Reference.set",1,t,this.path,!1),qn("Reference.set",2,e,!0);var n=new pn;return this.repo.setWithPriority(this.path,t,null,n.wrapCallback(e)),n.promise},e.prototype.update=function(t,e){if(Fn("Reference.update",1,2,arguments.length),ti("Reference.update",this.path),Array.isArray(t)){for(var n={},r=0;r<t.length;++r)n[""+r]=t[r];t=n,yr("Passing an Array to Firebase.update() is deprecated. Use set() if you want to overwrite the existing data, or an Object with integer keys if you really do want to only update some of the children.")}Yr("Reference.update",1,t,this.path,!1),qn("Reference.update",2,e,!0);var i=new pn;return this.repo.update(this.path,t,i.wrapCallback(e)),i.promise},e.prototype.setWithPriority=function(t,e,n){if(Fn("Reference.setWithPriority",2,3,arguments.length),ti("Reference.setWithPriority",this.path),Gr("Reference.setWithPriority",1,t,this.path,!1),Xr("Reference.setWithPriority",2,e,!1),qn("Reference.setWithPriority",3,n,!0),".length"===this.getKey()||".keys"===this.getKey())throw"Reference.setWithPriority failed: "+this.getKey()+" is a read-only object.";var r=new pn;return this.repo.setWithPriority(this.path,t,e,r.wrapCallback(n)),r.promise},e.prototype.remove=function(t){return Fn("Reference.remove",0,1,arguments.length),ti("Reference.remove",this.path),qn("Reference.remove",1,t,!0),this.set(null,t)},e.prototype.transaction=function(t,e,n){if(Fn("Reference.transaction",1,3,arguments.length),ti("Reference.transaction",this.path),qn("Reference.transaction",1,t,!1),qn("Reference.transaction",2,e,!0),function(t,e,n,r){if((!r||void 0!==n)&&"boolean"!=typeof n)throw new Error(Un(t,e,r)+"must be a boolean.")}("Reference.transaction",3,n,!0),".length"===this.getKey()||".keys"===this.getKey())throw"Reference.transaction failed: "+this.getKey()+" is a read-only object.";void 0===n&&(n=!0);var r=new pn;"function"==typeof e&&r.promise.catch(function(){});return this.repo.startTransaction(this.path,t,function(t,n,i){t?r.reject(t):r.resolve(new ri(n,i)),"function"==typeof e&&e(t,n,i)},n),r.promise},e.prototype.setPriority=function(t,e){Fn("Reference.setPriority",1,2,arguments.length),ti("Reference.setPriority",this.path),Xr("Reference.setPriority",1,t,!1),qn("Reference.setPriority",2,e,!0);var n=new pn;return this.repo.setWithPriority(this.path.child(".priority"),t,null,n.wrapCallback(e)),n.promise},e.prototype.push=function(t,e){Fn("Reference.push",0,2,arguments.length),ti("Reference.push",this.path),Gr("Reference.push",1,t,this.path,!0),qn("Reference.push",2,e,!0);var n,r=this.repo.serverTime(),i=ii(r),o=this.child(i),s=this.child(i);return n=null!=t?o.set(t,e).then(function(){return s}):Promise.resolve(s),o.then=n.then.bind(n),o.catch=n.then.bind(n,void 0),"function"==typeof e&&n.catch(function(){}),o},e.prototype.onDisconnect=function(){return ti("Reference.onDisconnect",this.path),new ni(this.repo,this.path)},Object.defineProperty(e.prototype,"database",{get:function(){return this.databaseProp()},enumerable:!0,configurable:!0}),Object.defineProperty(e.prototype,"key",{get:function(){return this.getKey()},enumerable:!0,configurable:!0}),Object.defineProperty(e.prototype,"parent",{get:function(){return this.getParent()},enumerable:!0,configurable:!0}),Object.defineProperty(e.prototype,"root",{get:function(){return this.getRoot()},enumerable:!0,configurable:!0}),e}(Wi);Wi.__referenceConstructor=Xo,po.__referenceConstructor=Xo;var Jo,$o=function(){return function(){this.children={},this.childCount=0,this.value=null}}(),Zo=function(){function t(t,e,n){void 0===t&&(t=""),void 0===e&&(e=null),void 0===n&&(n=new $o),this.name_=t,this.parent_=e,this.node_=n}return t.prototype.subTree=function(e){for(var n,r=e instanceof kr?e:new kr(e),i=this;null!==(n=r.getFront());){i=new t(n,i,In(i.node_.children,n)||new $o),r=r.popFront()}return i},t.prototype.getValue=function(){return this.node_.value},t.prototype.setValue=function(t){on(void 0!==t,"Cannot set value to undefined"),this.node_.value=t,this.updateParents_()},t.prototype.clear=function(){this.node_.value=null,this.node_.children={},this.node_.childCount=0,this.updateParents_()},t.prototype.hasChildren=function(){return this.node_.childCount>0},t.prototype.isEmpty=function(){return null===this.getValue()&&!this.hasChildren()},t.prototype.forEachChild=function(e){var n=this;Cn(this.node_.children,function(r,i){e(new t(r,n,i))})},t.prototype.forEachDescendant=function(t,e,n){e&&!n&&t(this),this.forEachChild(function(e){e.forEachDescendant(t,!0,n)}),e&&n&&t(this)},t.prototype.forEachAncestor=function(t,e){for(var n=e?this:this.parent();null!==n;){if(t(n))return!0;n=n.parent()}return!1},t.prototype.forEachImmediateDescendantWithValue=function(t){this.forEachChild(function(e){null!==e.getValue()?t(e):e.forEachImmediateDescendantWithValue(t)})},t.prototype.path=function(){return new kr(null===this.parent_?this.name_:this.parent_.path()+"/"+this.name_)},t.prototype.name=function(){return this.name_},t.prototype.parent=function(){return this.parent_},t.prototype.updateParents_=function(){null!==this.parent_&&this.parent_.updateChild_(this.name_,this)},t.prototype.updateChild_=function(t,e){var n=e.isEmpty(),r=Sn(this.node_.children,t);n&&r?(delete this.node_.children[t],this.node_.childCount--,this.updateParents_()):n||r||(this.node_.children[t]=e.node_,this.node_.childCount++,this.updateParents_())},t}();!function(t){t[t.RUN=0]="RUN",t[t.SENT=1]="SENT",t[t.COMPLETED=2]="COMPLETED",t[t.SENT_NEEDS_ABORT=3]="SENT_NEEDS_ABORT",t[t.NEEDS_ABORT=4]="NEEDS_ABORT"}(Jo||(Jo={})),Ho.MAX_TRANSACTION_RETRIES_=25,Ho.prototype.transactions_init_=function(){this.transactionQueueTree_=new Zo},Ho.prototype.startTransaction=function(t,e,n,r){this.log_("transaction on "+t);var i=function(){},o=new Xo(this,t);o.on("value",i);var s={path:t,update:e,onComplete:n,status:null,order:or(),applyLocally:r,retryCount:0,unwatcher:function(){o.off("value",i)},abortReason:null,currentWriteId:null,currentInputSnapshot:null,currentOutputSnapshotRaw:null,currentOutputSnapshotResolved:null},a=this.getLatestState_(t);s.currentInputSnapshot=a;var u=s.update(a.val());if(void 0===u){if(s.unwatcher(),s.currentOutputSnapshotRaw=null,s.currentOutputSnapshotResolved=null,s.onComplete){var c=new Fi(s.currentInputSnapshot,new Xo(this,s.path),gi);s.onComplete(null,!1,c)}}else{zr("transaction failed: Data returned ",u,s.path),s.status=Jo.RUN;var h=this.transactionQueueTree_.subTree(t),l=h.getValue()||[];l.push(s),h.setValue(l);var f=void 0;if("object"==typeof u&&null!==u&&Sn(u,".priority"))f=In(u,".priority"),on(Hr(f),"Invalid priority returned by transaction. Priority must be a valid string, finite number, server value, or null.");else f=(this.serverSyncTree_.calcCompleteEventCache(t)||Ai.EMPTY_NODE).getPriority().val();f=f;var p=this.generateServerValues(),d=Oi(u,f),y=Hi(d,p);s.currentOutputSnapshotRaw=d,s.currentOutputSnapshotResolved=y,s.currentWriteId=this.getNextWriteId_();var m=this.serverSyncTree_.applyUserOverwrite(t,y,s.currentWriteId,s.applyLocally);this.eventQueue_.raiseEventsForChangedPath(t,m),this.sendReadyTransactions_()}},Ho.prototype.getLatestState_=function(t,e){return this.serverSyncTree_.calcCompleteEventCache(t,e)||Ai.EMPTY_NODE},Ho.prototype.sendReadyTransactions_=function(t){var e=this;if(void 0===t&&(t=this.transactionQueueTree_),t||this.pruneCompletedTransactionsBelowNode_(t),null!==t.getValue()){var n=this.buildTransactionQueue_(t);on(n.length>0,"Sending zero length transaction queue"),n.every(function(t){return t.status===Jo.RUN})&&this.sendTransactionQueue_(t.path(),n)}else t.hasChildren()&&t.forEachChild(function(t){e.sendReadyTransactions_(t)})},Ho.prototype.sendTransactionQueue_=function(t,e){for(var n=this,r=e.map(function(t){return t.currentWriteId}),i=this.getLatestState_(t,r),o=i,s=i.hash(),a=0;a<e.length;a++){var u=e[a];on(u.status===Jo.RUN,"tryToSendTransactionQueue_: items in queue should all be run."),u.status=Jo.SENT,u.retryCount++;var c=kr.relativePath(t,u.path);o=o.updateChild(c,u.currentOutputSnapshotRaw)}var h=o.val(!0),l=t;this.server_.put(l.toString(),h,function(r){n.log_("transaction put response",{path:l.toString(),status:r});var i=[];if("ok"===r){for(var o=[],s=0;s<e.length;s++){if(e[s].status=Jo.COMPLETED,i=i.concat(n.serverSyncTree_.ackUserWrite(e[s].currentWriteId)),e[s].onComplete){var a=e[s].currentOutputSnapshotResolved,u=new Xo(n,e[s].path),c=new Fi(a,u,gi);o.push(e[s].onComplete.bind(null,null,!0,c))}e[s].unwatcher()}n.pruneCompletedTransactionsBelowNode_(n.transactionQueueTree_.subTree(t)),n.sendReadyTransactions_(),n.eventQueue_.raiseEventsForChangedPath(t,i);for(s=0;s<o.length;s++)Dr(o[s])}else{if("datastale"===r)for(s=0;s<e.length;s++)e[s].status===Jo.SENT_NEEDS_ABORT?e[s].status=Jo.NEEDS_ABORT:e[s].status=Jo.RUN;else{yr("transaction at "+l.toString()+" failed: "+r);for(s=0;s<e.length;s++)e[s].status=Jo.NEEDS_ABORT,e[s].abortReason=r}n.rerunTransactions_(t)}},s)},Ho.prototype.rerunTransactions_=function(t){var e=this.getAncestorTransactionNode_(t),n=e.path(),r=this.buildTransactionQueue_(e);return this.rerunTransactionQueue_(r,n),n},Ho.prototype.rerunTransactionQueue_=function(t,e){if(0!==t.length){for(var n,r=[],i=[],o=t.filter(function(t){return t.status===Jo.RUN}).map(function(t){return t.currentWriteId}),s=0;s<t.length;s++){var a=t[s],u=kr.relativePath(e,a.path),c=!1,h=void 0;if(on(null!==u,"rerunTransactionsUnderNode_: relativePath should not be null."),a.status===Jo.NEEDS_ABORT)c=!0,h=a.abortReason,i=i.concat(this.serverSyncTree_.ackUserWrite(a.currentWriteId,!0));else if(a.status===Jo.RUN)if(a.retryCount>=Ho.MAX_TRANSACTION_RETRIES_)c=!0,h="maxretry",i=i.concat(this.serverSyncTree_.ackUserWrite(a.currentWriteId,!0));else{var l=this.getLatestState_(a.path,o);a.currentInputSnapshot=l;var f=t[s].update(l.val());if(void 0!==f){zr("transaction failed: Data returned ",f,a.path);var p=Oi(f);"object"==typeof f&&null!=f&&Sn(f,".priority")||(p=p.updatePriority(l.getPriority()));var d=a.currentWriteId,y=this.generateServerValues(),m=Hi(p,y);a.currentOutputSnapshotRaw=p,a.currentOutputSnapshotResolved=m,a.currentWriteId=this.getNextWriteId_(),o.splice(o.indexOf(d),1),i=(i=i.concat(this.serverSyncTree_.applyUserOverwrite(a.path,m,a.currentWriteId,a.applyLocally))).concat(this.serverSyncTree_.ackUserWrite(d,!0))}else c=!0,h="nodata",i=i.concat(this.serverSyncTree_.ackUserWrite(a.currentWriteId,!0))}if(this.eventQueue_.raiseEventsForChangedPath(e,i),i=[],c&&(t[s].status=Jo.COMPLETED,n=t[s].unwatcher,setTimeout(n,Math.floor(0)),t[s].onComplete))if("nodata"===h){var g=new Xo(this,t[s].path),v=t[s].currentInputSnapshot,b=new Fi(v,g,gi);r.push(t[s].onComplete.bind(null,null,!1,b))}else r.push(t[s].onComplete.bind(null,new Error(h),!1,null))}this.pruneCompletedTransactionsBelowNode_(this.transactionQueueTree_);for(s=0;s<r.length;s++)Dr(r[s]);this.sendReadyTransactions_()}},Ho.prototype.getAncestorTransactionNode_=function(t){for(var e,n=this.transactionQueueTree_;null!==(e=t.getFront())&&null===n.getValue();)n=n.subTree(e),t=t.popFront();return n},Ho.prototype.buildTransactionQueue_=function(t){var e=[];return this.aggregateTransactionQueuesForNode_(t,e),e.sort(function(t,e){return t.order-e.order}),e},Ho.prototype.aggregateTransactionQueuesForNode_=function(t,e){var n=this,r=t.getValue();if(null!==r)for(var i=0;i<r.length;i++)e.push(r[i]);t.forEachChild(function(t){n.aggregateTransactionQueuesForNode_(t,e)})},Ho.prototype.pruneCompletedTransactionsBelowNode_=function(t){var e=this,n=t.getValue();if(n){for(var r=0,i=0;i<n.length;i++)n[i].status!==Jo.COMPLETED&&(n[r]=n[i],r++);n.length=r,t.setValue(n.length>0?n:null)}t.forEachChild(function(t){e.pruneCompletedTransactionsBelowNode_(t)})},Ho.prototype.abortTransactions_=function(t){var e=this,n=this.getAncestorTransactionNode_(t).path(),r=this.transactionQueueTree_.subTree(t);return r.forEachAncestor(function(t){e.abortTransactionsOnNode_(t)}),this.abortTransactionsOnNode_(r),r.forEachDescendant(function(t){e.abortTransactionsOnNode_(t)}),n},Ho.prototype.abortTransactionsOnNode_=function(t){var e=t.getValue();if(null!==e){for(var n=[],r=[],i=-1,o=0;o<e.length;o++)if(e[o].status===Jo.SENT_NEEDS_ABORT);else if(e[o].status===Jo.SENT)on(i===o-1,"All SENT items should be at beginning of queue."),i=o,e[o].status=Jo.SENT_NEEDS_ABORT,e[o].abortReason="set";else if(on(e[o].status===Jo.RUN,"Unexpected transaction status in abort"),e[o].unwatcher(),r=r.concat(this.serverSyncTree_.ackUserWrite(e[o].currentWriteId,!0)),e[o].onComplete){n.push(e[o].onComplete.bind(null,new Error("set"),!1,null))}-1===i?t.setValue(null):e.length=i+1,this.eventQueue_.raiseEventsForChangedPath(t.path(),r);for(o=0;o<n.length;o++)Dr(n[o])}};var ts,es=function(){function t(){this.repos_={},this.useRestClient_=!1}return t.getInstance=function(){return ts||(ts=new t),ts},t.prototype.interrupt=function(){for(var t in this.repos_)for(var e in this.repos_[t])this.repos_[t][e].interrupt()},t.prototype.resume=function(){for(var t in this.repos_)for(var e in this.repos_[t])this.repos_[t][e].resume()},t.prototype.databaseFromApp=function(t,e){var n=e||t.options.databaseURL;void 0===n&&dr("Can't determine Firebase Database URL.  Be sure to include databaseURL option when calling firebase.initializeApp().");var r=Br(n),i=r.repoInfo;return ei("Invalid Firebase Database URL",1,r),r.path.isEmpty()||dr("Database URL must point to the root of a Firebase Database (not including a child path)."),this.createRepo(i,t).database},t.prototype.deleteRepo=function(t){var e=In(this.repos_,t.app.name);e&&In(e,t.repoInfo_.toURLString())===t||dr("Database "+t.app.name+"("+t.repoInfo_+") has already been deleted."),t.interrupt(),delete e[t.repoInfo_.toURLString()]},t.prototype.createRepo=function(t,e){var n=In(this.repos_,e.name);n||(n={},this.repos_[e.name]=n);var r=In(n,t.toURLString());return r&&dr("Database initialized multiple times. 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t.right.left.isRed()&&(t=(t=(t=t.copy(null,null,null,null,t.right.rotateRight())).rotateLeft()).colorFlip()),t},t.prototype.moveRedRight=function(){var t=this.colorFlip();return t.left.left.isRed()&&(t=(t=t.rotateRight()).colorFlip()),t},t.prototype.rotateLeft=function(){var e=this.copy(null,null,t.RED,null,this.right.left);return this.right.copy(null,null,this.color,e,null)},t.prototype.rotateRight=function(){var e=this.copy(null,null,t.RED,this.left.right,null);return this.left.copy(null,null,this.color,null,e)},t.prototype.colorFlip=function(){var t=this.left.copy(null,null,!this.left.color,null,null),e=this.right.copy(null,null,!this.right.color,null,null);return this.copy(null,null,!this.color,t,e)},t.prototype.checkMaxDepth=function(){var t=this.check();return Math.pow(2,t)<=this.size+1},t.prototype.check=function(){if(this.isRed()&&this.left.isRed())throw $c("Red node has red child("+this.key+","+this.value+")");if(this.right.isRed())throw $c("Right child of 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this.sortedSet.isEmpty()},t.prototype.indexOf=function(t){var e=this.keyedMap.get(t);return e?this.sortedSet.indexOf(e):-1},Object.defineProperty(t.prototype,"size",{get:function(){return this.sortedSet.size},enumerable:!0,configurable:!0}),t.prototype.forEach=function(t){this.sortedSet.inorderTraversal(function(e,n){return t(e),!1})},t.prototype.add=function(t){var e=this.delete(t.key);return e.copy(e.keyedMap.insert(t.key,t),e.sortedSet.insert(t,null))},t.prototype.delete=function(t){var e=this.get(t);return e?this.copy(this.keyedMap.remove(t),this.sortedSet.remove(e)):this},t.prototype.isEqual=function(e){if(!(e instanceof t))return!1;if(this.size!==e.size)return!1;for(var n=this.sortedSet.getIterator(),r=e.sortedSet.getIterator();n.hasNext();){var i=n.getNext().key,o=r.getNext().key;if(!i.isEqual(o))return!1}return!0},t.prototype.toString=function(){var t=[];return this.forEach(function(e){t.push(e.toString())}),0===t.length?"DocumentSet ()":"DocumentSet (\n  "+t.join("  \n")+"\n)"},t.prototype.copy=function(e,n){var r=new t;return r.comparator=this.comparator,r.keyedMap=e,r.sortedSet=n,r},t}();!function(t){t[t.Added=0]="Added",t[t.Removed=1]="Removed",t[t.Modified=2]="Modified",t[t.Metadata=3]="Metadata"}(df||(df={})),function(t){t[t.Local=0]="Local",t[t.Synced=1]="Synced"}(yf||(yf={}));var gf,vf=function(){function t(){this.changeMap=new Xh(Qh.comparator)}return t.prototype.track=function(t){var e=t.doc.key,n=this.changeMap.get(e);n?t.type!==df.Added&&n.type===df.Metadata?this.changeMap=this.changeMap.insert(e,t):t.type===df.Metadata&&n.type!==df.Removed?this.changeMap=this.changeMap.insert(e,{type:n.type,doc:t.doc}):t.type===df.Modified&&n.type===df.Modified?this.changeMap=this.changeMap.insert(e,{type:df.Modified,doc:t.doc}):t.type===df.Modified&&n.type===df.Added?this.changeMap=this.changeMap.insert(e,{type:df.Added,doc:t.doc}):t.type===df.Removed&&n.type===df.Added?this.changeMap=this.changeMap.remove(e):t.type===df.Removed&&n.type===df.Modified?this.changeMap=this.changeMap.insert(e,{type:df.Removed,doc:n.doc}):t.type===df.Added&&n.type===df.Removed?this.changeMap=this.changeMap.insert(e,{type:df.Modified,doc:t.doc}):$c("unsupported combination of changes: "+JSON.stringify(t)+" after "+JSON.stringify(n)):this.changeMap=this.changeMap.insert(e,t)},t.prototype.getChanges=function(){var t=[];return this.changeMap.inorderTraversal(function(e,n){t.push(n)}),t},t}(),bf=function(){function t(t,e,n,r,i,o,s,a){this.query=t,this.docs=e,this.oldDocs=n,this.docChanges=r,this.mutatedKeys=i,this.fromCache=o,this.syncStateChanged=s,this.excludesMetadataChanges=a}return t.fromInitialDocuments=function(e,n,r,i){var o=[];return n.forEach(function(t){o.push({type:df.Added,doc:t})}),new t(e,n,mf.emptySet(n),o,r,i,!0,!1)},Object.defineProperty(t.prototype,"hasPendingWrites",{get:function(){return!this.mutatedKeys.isEmpty()},enumerable:!0,configurable:!0}),t.prototype.isEqual=function(t){if(!(this.fromCache===t.fromCache&&this.syncStateChanged===t.syncStateChanged&&this.mutatedKeys.isEqual(t.mutatedKeys)&&this.query.isEqual(t.query)&&this.docs.isEqual(t.docs)&&this.oldDocs.isEqual(t.oldDocs)))return!1;var e=this.docChanges,n=t.docChanges;if(e.length!==n.length)return!1;for(var r=0;r<e.length;r++)if(e[r].type!==n[r].type||!e[r].doc.isEqual(n[r].doc))return!1;return!0},t}(),_f=function(){function t(t,e,n,r,i){this.snapshotVersion=t,this.targetChanges=e,this.targetMismatches=n,this.documentUpdates=r,this.resolvedLimboDocuments=i}return t.createSynthesizedRemoteEventForCurrentChange=function(e,n){var r,i=((r={})[e]=wf.createSynthesizedTargetChangeForCurrentChange(e,n),r);return new t(Ll.MIN,i,pf(),rf(),lf())},t}(),wf=function(){function t(t,e,n,r,i){this.resumeToken=t,this.current=e,this.addedDocuments=n,this.modifiedDocuments=r,this.removedDocuments=i}return t.createSynthesizedTargetChangeForCurrentChange=function(e,n){return new t(eh(),n,lf(),lf(),lf())},t}(),Ef=function(){return function(t,e,n,r){this.updatedTargetIds=t,this.removedTargetIds=e,this.key=n,this.newDoc=r}}(),Tf=function(){return function(t,e){this.targetId=t,this.existenceFilter=e}}();!function(t){t[t.NoChange=0]="NoChange",t[t.Added=1]="Added",t[t.Removed=2]="Removed",t[t.Current=3]="Current",t[t.Reset=4]="Reset"}(gf||(gf={}));var Sf=function(){return function(t,e,n,r){void 0===n&&(n=eh()),void 0===r&&(r=null),this.state=t,this.targetIds=e,this.resumeToken=n,this.cause=r}}(),If=function(){function t(){this.pendingResponses=0,this.documentChanges=Df(),this._resumeToken=eh(),this._current=!1,this._hasPendingChanges=!0}return Object.defineProperty(t.prototype,"current",{get:function(){return this._current},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"resumeToken",{get:function(){return this._resumeToken},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"isPending",{get:function(){return 0!==this.pendingResponses},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"hasPendingChanges",{get:function(){return this._hasPendingChanges},enumerable:!0,configurable:!0}),t.prototype.updateResumeToken=function(t){t.length>0&&(this._hasPendingChanges=!0,this._resumeToken=t)},t.prototype.toTargetChange=function(){var t=lf(),e=lf(),n=lf();return this.documentChanges.forEach(function(r,i){switch(i){case df.Added:t=t.add(r);break;case df.Modified:e=e.add(r);break;case df.Removed:n=n.add(r);break;default:$c("Encountered invalid change type: "+i)}}),new wf(this._resumeToken,this._current,t,e,n)},t.prototype.clearPendingChanges=function(){this._hasPendingChanges=!1,this.documentChanges=Df()},t.prototype.addDocumentChange=function(t,e){this._hasPendingChanges=!0,this.documentChanges=this.documentChanges.insert(t,e)},t.prototype.removeDocumentChange=function(t){this._hasPendingChanges=!0,this.documentChanges=this.documentChanges.remove(t)},t.prototype.recordPendingTargetRequest=function(){this.pendingResponses+=1},t.prototype.recordTargetResponse=function(){this.pendingResponses-=1},t.prototype.markCurrent=function(){this._hasPendingChanges=!0,this._current=!0},t}(),Cf=function(){function t(t){this.metadataProvider=t,this.targetStates={},this.pendingDocumentUpdates=rf(),this.pendingDocumentTargetMapping=Nf(),this.pendingTargetResets=new Fl(Dh)}return t.prototype.handleDocumentChange=function(t){for(var e=0,n=t.updatedTargetIds;e<n.length;e++){var r=n[e];t.newDoc instanceof Gh?this.addDocumentToTarget(r,t.newDoc):t.newDoc instanceof zh&&this.removeDocumentFromTarget(r,t.key,t.newDoc)}for(var i=0,o=t.removedTargetIds;i<o.length;i++){r=o[i];this.removeDocumentFromTarget(r,t.key,t.newDoc)}},t.prototype.handleTargetChange=function(t){var e=this;this.forEachTarget(t,function(n){var r=e.ensureTargetState(n);switch(t.state){case gf.NoChange:e.isActiveTarget(n)&&r.updateResumeToken(t.resumeToken);break;case gf.Added:r.recordTargetResponse(),r.isPending||r.clearPendingChanges(),r.updateResumeToken(t.resumeToken);break;case gf.Removed:r.recordTargetResponse(),r.isPending||e.removeTarget(n),Zc(!t.cause,"WatchChangeAggregator does not handle errored targets");break;case gf.Current:e.isActiveTarget(n)&&(r.markCurrent(),r.updateResumeToken(t.resumeToken));break;case gf.Reset:e.isActiveTarget(n)&&(e.resetTarget(n),r.updateResumeToken(t.resumeToken));break;default:$c("Unknown target watch change state: "+t.state)}})},t.prototype.forEachTarget=function(t,e){t.targetIds.length>0?t.targetIds.forEach(e):ah(this.targetStates,e)},t.prototype.handleExistenceFilter=function(t){var e=t.targetId,n=t.existenceFilter.count,r=this.queryDataForActiveTarget(e);if(r){var i=r.query;if(i.isDocumentQuery())if(0===n){var o=new Qh(i.path);this.removeDocumentFromTarget(e,o,new zh(o,Ll.forDeletedDoc()))}else Zc(1===n,"Single document existence filter with count: "+n);else this.getCurrentDocumentCountForTarget(e)!==n&&(this.resetTarget(e),this.pendingTargetResets=this.pendingTargetResets.add(e))}},t.prototype.createRemoteEvent=function(t){var e=this,n={};ah(this.targetStates,function(r,i){var o=e.queryDataForActiveTarget(r);if(o){if(i.current&&o.query.isDocumentQuery()){var s=new Qh(o.query.path);null!==e.pendingDocumentUpdates.get(s)||e.targetContainsDocument(r,s)||e.removeDocumentFromTarget(r,s,new zh(s,t))}i.hasPendingChanges&&(n[r]=i.toTargetChange(),i.clearPendingChanges())}});var r=lf();this.pendingDocumentTargetMapping.forEach(function(t,n){var i=!0;n.forEachWhile(function(t){var n=e.queryDataForActiveTarget(t);return!n||n.purpose===El.LimboResolution||(i=!1,!1)}),i&&(r=r.add(t))});var i=new _f(t,n,this.pendingTargetResets,this.pendingDocumentUpdates,r);return this.pendingDocumentUpdates=rf(),this.pendingDocumentTargetMapping=Nf(),this.pendingTargetResets=new Fl(Dh),i},t.prototype.addDocumentToTarget=function(t,e){if(this.isActiveTarget(t)){var n=this.targetContainsDocument(t,e.key)?df.Modified:df.Added;this.ensureTargetState(t).addDocumentChange(e.key,n),this.pendingDocumentUpdates=this.pendingDocumentUpdates.insert(e.key,e),this.pendingDocumentTargetMapping=this.pendingDocumentTargetMapping.insert(e.key,this.ensureDocumentTargetMapping(e.key).add(t))}},t.prototype.removeDocumentFromTarget=function(t,e,n){if(this.isActiveTarget(t)){var r=this.ensureTargetState(t);this.targetContainsDocument(t,e)?r.addDocumentChange(e,df.Removed):r.removeDocumentChange(e),this.pendingDocumentTargetMapping=this.pendingDocumentTargetMapping.insert(e,this.ensureDocumentTargetMapping(e).delete(t)),n&&(this.pendingDocumentUpdates=this.pendingDocumentUpdates.insert(e,n))}},t.prototype.removeTarget=function(t){delete this.targetStates[t]},t.prototype.getCurrentDocumentCountForTarget=function(t){var e=this.ensureTargetState(t).toTargetChange();return this.metadataProvider.getRemoteKeysForTarget(t).size+e.addedDocuments.size-e.removedDocuments.size},t.prototype.recordPendingTargetRequest=function(t){this.ensureTargetState(t).recordPendingTargetRequest()},t.prototype.ensureTargetState=function(t){return this.targetStates[t]||(this.targetStates[t]=new If),this.targetStates[t]},t.prototype.ensureDocumentTargetMapping=function(t){var e=this.pendingDocumentTargetMapping.get(t);return e||(e=new Fl(Dh),this.pendingDocumentTargetMapping=this.pendingDocumentTargetMapping.insert(t,e)),e},t.prototype.isActiveTarget=function(t){return null!==this.queryDataForActiveTarget(t)},t.prototype.queryDataForActiveTarget=function(t){var e=this.targetStates[t];return e&&e.isPending?null:this.metadataProvider.getQueryDataForTarget(t)},t.prototype.resetTarget=function(t){var e=this;Zc(!this.targetStates[t].isPending,"Should only reset active targets"),this.targetStates[t]=new If,this.metadataProvider.getRemoteKeysForTarget(t).forEach(function(n){e.removeDocumentFromTarget(t,n,null)})},t.prototype.targetContainsDocument=function(t,e){return this.metadataProvider.getRemoteKeysForTarget(t).has(e)},t}();function Nf(){return new Xh(Qh.comparator)}function Df(){return new Xh(Qh.comparator)}var Af,Rf,kf=((Af={})[Al.ASCENDING.name]="ASCENDING",Af[Al.DESCENDING.name]="DESCENDING",Af),Of=((Rf={})[Il.LESS_THAN.name]="LESS_THAN",Rf[Il.LESS_THAN_OR_EQUAL.name]="LESS_THAN_OR_EQUAL",Rf[Il.GREATER_THAN.name]="GREATER_THAN",Rf[Il.GREATER_THAN_OR_EQUAL.name]="GREATER_THAN_OR_EQUAL",Rf[Il.EQUAL.name]="EQUAL",Rf[Il.ARRAY_CONTAINS.name]="ARRAY_CONTAINS",Rf),Pf=new RegExp(/^\d{4}-\d\d-\d\dT\d\d:\d\d:\d\d(?:\.(\d+))?Z$/);function Lf(t,e){Zc(!_l(t),e+" is missing")}function Mf(t){return"number"==typeof t?t:"string"==typeof t?Number(t):$c("can't parse "+t)}var xf=function(){function t(t,e){this.databaseId=t,this.options=e}return t.prototype.emptyByteString=function(){return this.options.useProto3Json?"":new Uint8Array(0)},t.prototype.unsafeCastProtoByteString=function(t){return t},t.prototype.fromRpcStatus=function(t){var e=void 0===t.code?nh.UNKNOWN:ef(t.code);return new rh(e,t.message||"")},t.prototype.toInt32Value=function(t){return _l(t)?void 0:{value:t}},t.prototype.fromInt32Value=function(t){var e;return _l(e="object"==typeof t?t.value:t)?null:e},t.prototype.toTimestamp=function(t){return{seconds:t.seconds,nanos:t.nanoseconds}},t.prototype.fromTimestamp=function(t){if("string"==typeof t)return this.fromIso8601String(t);Zc(!!t,"Cannot deserialize null or undefined timestamp.");var e=Mf(t.seconds||"0"),n=t.nanos||0;return new Fh(e,n)},t.prototype.fromIso8601String=function(t){var e=0,n=Pf.exec(t);if(Zc(!!n,"invalid timestamp: "+t),n[1]){var r=n[1];r=(r+"000000000").substr(0,9),e=Number(r)}var i=new Date(t),o=Math.floor(i.getTime()/1e3);return new Fh(o,e)},t.prototype.toBytes=function(t){return this.options.useProto3Json?t.toBase64():this.unsafeCastProtoByteString(t.toUint8Array())},t.prototype.fromBlob=function(t){return"string"==typeof t?(Zc(this.options.useProto3Json,"Expected bytes to be passed in as Uint8Array, but got a string instead."),Lh.fromBase64String(t)):(Zc(!this.options.useProto3Json,"Expected bytes to be passed in as string, but got something else instead."),Lh.fromUint8Array(t))},t.prototype.toVersion=function(t){return this.toTimestamp(t.toTimestamp())},t.prototype.fromVersion=function(t){return Zc(!!t,"Trying to deserialize version that isn't set"),Ll.fromTimestamp(this.fromTimestamp(t))},t.prototype.toResourceName=function(t,e){return this.fullyQualifiedPrefixPath(t).child("documents").child(e).canonicalString()},t.prototype.fromResourceName=function(t){var e=Wh.fromString(t);return Zc(this.isValidResourceName(e),"Tried to deserialize invalid key "+e.toString()),e},t.prototype.toName=function(t){return this.toResourceName(this.databaseId,t.path)},t.prototype.fromName=function(t){var e=this.fromResourceName(t);return Zc(e.get(1)===this.databaseId.projectId,"Tried to deserialize key from different project: "+e.get(1)+" vs "+this.databaseId.projectId),Zc(!e.get(3)&&!this.databaseId.database||e.get(3)===this.databaseId.database,"Tried to deserialize key from different database: "+e.get(3)+" vs "+this.databaseId.database),new Qh(this.extractLocalPathFromResourceName(e))},t.prototype.toQueryPath=function(t){return this.toResourceName(this.databaseId,t)},t.prototype.fromQueryPath=function(t){var e=this.fromResourceName(t);return 4===e.length?Wh.EMPTY_PATH:this.extractLocalPathFromResourceName(e)},Object.defineProperty(t.prototype,"encodedDatabaseId",{get:function(){return new Wh(["projects",this.databaseId.projectId,"databases",this.databaseId.database]).canonicalString()},enumerable:!0,configurable:!0}),t.prototype.fullyQualifiedPrefixPath=function(t){return new Wh(["projects",t.projectId,"databases",t.database])},t.prototype.extractLocalPathFromResourceName=function(t){return Zc(t.length>4&&"documents"===t.get(4),"tried to deserialize invalid key "+t.toString()),t.popFirst(5)},t.prototype.isValidResourceName=function(t){return t.length>=4&&"projects"===t.get(0)&&"databases"===t.get(2)},t.prototype.toValue=function(t){if(t instanceof nl)return{nullValue:"NULL_VALUE"};if(t instanceof rl)return{booleanValue:t.value()};if(t instanceof sl)return{integerValue:""+t.value()};if(t instanceof al){var e=t.value();if(this.options.useProto3Json){if(isNaN(e))return{doubleValue:"NaN"};if(e===1/0)return{doubleValue:"Infinity"};if(e===-1/0)return{doubleValue:"-Infinity"}}return{doubleValue:t.value()}}return t instanceof ul?{stringValue:t.value()}:t instanceof dl?{mapValue:this.toMapValue(t)}:t instanceof yl?{arrayValue:this.toArrayValue(t)}:t instanceof cl?{timestampValue:this.toTimestamp(t.internalValue)}:t instanceof pl?{geoPointValue:{latitude:t.value().latitude,longitude:t.value().longitude}}:t instanceof ll?{bytesValue:this.toBytes(t.value())}:t instanceof fl?{referenceValue:this.toResourceName(t.databaseId,t.key.path)}:$c("Unknown FieldValue "+JSON.stringify(t))},t.prototype.fromValue=function(t){var e=this,n=t.value_type;if(Ff(t,n,"nullValue"))return nl.INSTANCE;if(Ff(t,n,"booleanValue"))return rl.of(t.booleanValue);if(Ff(t,n,"integerValue"))return new sl(Mf(t.integerValue));if(Ff(t,n,"doubleValue")){if(this.options.useProto3Json){if("NaN"===t.doubleValue)return al.NAN;if("Infinity"===t.doubleValue)return al.POSITIVE_INFINITY;if("-Infinity"===t.doubleValue)return al.NEGATIVE_INFINITY}return new al(t.doubleValue)}if(Ff(t,n,"stringValue"))return new ul(t.stringValue);if(Ff(t,n,"mapValue"))return this.fromFields(t.mapValue.fields||{});if(Ff(t,n,"arrayValue")){Lf(t.arrayValue,"arrayValue");var r=t.arrayValue.values||[];return new yl(r.map(function(t){return e.fromValue(t)}))}if(Ff(t,n,"timestampValue"))return Lf(t.timestampValue,"timestampValue"),new cl(this.fromTimestamp(t.timestampValue));if(Ff(t,n,"geoPointValue")){Lf(t.geoPointValue,"geoPointValue");var i=t.geoPointValue.latitude||0,o=t.geoPointValue.longitude||0;return new pl(new xh(i,o))}if(Ff(t,n,"bytesValue")){Lf(t.bytesValue,"bytesValue");var s=this.fromBlob(t.bytesValue);return new ll(s)}if(Ff(t,n,"referenceValue")){Lf(t.referenceValue,"referenceValue");var a=this.fromResourceName(t.referenceValue),u=new Bh(a.get(1),a.get(3)),c=new Qh(this.extractLocalPathFromResourceName(a));return new fl(u,c)}return $c("Unknown Value proto "+JSON.stringify(t))},t.prototype.toMutationDocument=function(t,e){return{name:this.toName(t),fields:this.toFields(e)}},t.prototype.toDocument=function(t){return Zc(!t.hasLocalMutations,"Can't serialize documents with mutations."),{name:this.toName(t.key),fields:this.toFields(t.data),updateTime:this.toTimestamp(t.version.toTimestamp())}},t.prototype.fromDocument=function(t,e){return new Gh(this.fromName(t.name),this.fromVersion(t.updateTime),this.fromFields(t.fields||{}),{hasCommittedMutations:!!e})},t.prototype.toFields=function(t){var e=this,n={};return t.forEach(function(t,r){n[t]=e.toValue(r)}),n},t.prototype.fromFields=function(t){var e=this,n=t,r=dl.EMPTY;return uh(n,function(t,n){r=r.set(new Kh([t]),e.fromValue(n))}),r},t.prototype.toMapValue=function(t){return{fields:this.toFields(t)}},t.prototype.toArrayValue=function(t){var e=this,n=[];return t.forEach(function(t){n.push(e.toValue(t))}),{values:n}},t.prototype.fromFound=function(t){Zc(!!t.found,"Tried to deserialize a found document from a missing document."),Lf(t.found.name,"doc.found.name"),Lf(t.found.updateTime,"doc.found.updateTime");var e=this.fromName(t.found.name),n=this.fromVersion(t.found.updateTime),r=this.fromFields(t.found.fields||{});return new Gh(e,n,r,{},t.found)},t.prototype.fromMissing=function(t){Zc(!!t.missing,"Tried to deserialize a missing document from a found document."),Zc(!!t.readTime,"Tried to deserialize a missing document without a read time.");var e=this.fromName(t.missing),n=this.fromVersion(t.readTime);return new zh(e,n)},t.prototype.fromMaybeDocument=function(t){var e=t.result;return Ff(t,e,"found")?this.fromFound(t):Ff(t,e,"missing")?this.fromMissing(t):$c("invalid batch get response: "+JSON.stringify(t))},t.prototype.toWatchTargetChangeState=function(t){switch(t){case gf.Added:return"ADD";case gf.Current:return"CURRENT";case gf.NoChange:return"NO_CHANGE";case gf.Removed:return"REMOVE"