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e=t.getFront(),n=this.children.get(e);if(n){n=n.remove(t.popFront()),t=void 0,t=n.isEmpty()?this.children.remove(e):this.children.insert(e,n);return null===this.value&&t.isEmpty()?zn.Empty:new zn(this.value,t)}return this},zn.prototype.get=function(t){if(t.isEmpty())return this.value;var e=t.getFront(),e=this.children.get(e);return e?e.get(t.popFront()):null},zn.prototype.setTree=function(t,e){if(t.isEmpty())return e;var n=t.getFront(),t=(this.children.get(n)||zn.Empty).setTree(t.popFront(),e),e=void 0,e=t.isEmpty()?this.children.remove(n):this.children.insert(n,t);return new zn(this.value,e)},zn.prototype.fold=function(t){return this.fold_(Mt.Empty,t)},zn.prototype.fold_=function(n,r){var i={};return this.children.inorderTraversal(function(t,e){i[t]=e.fold_(n.child(t),r)}),r(n,this.value,i)},zn.prototype.findOnPath=function(t,e){return this.findOnPath_(t,Mt.Empty,e)},zn.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(),r=this.children.get(i);return r?r.findOnPath_(t.popFront(),e.child(i),n):null},zn.prototype.foreachOnPath=function(t,e){return this.foreachOnPath_(t,Mt.Empty,e)},zn.prototype.foreachOnPath_=function(t,e,n){if(t.isEmpty())return this;this.value&&n(e,this.value);var r=t.getFront(),i=this.children.get(r);return i?i.foreachOnPath_(t.popFront(),e.child(r),n):zn.Empty},zn.prototype.foreach=function(t){this.foreach_(Mt.Empty,t)},zn.prototype.foreach_=function(n,r){this.children.inorderTraversal(function(t,e){e.foreach_(n.child(t),r)}),this.value&&r(n,this.value)},zn.prototype.foreachChild=function(n){this.children.inorderTraversal(function(t,e){e.value&&n(t,e.value)})},zn.Empty=new zn(null),zn);function zn(t,e){void 0===e&&(e=Vn=Vn||new Ue(dt)),this.value=t,this.children=e}var Kn=(Yn.prototype.operationForChild=function(t){return this.path.isEmpty()?new Yn(this.source,Mt.Empty):new Yn(this.source,this.path.popFront())},Yn);function Yn(t,e){this.source=t,this.path=e,this.type=Mn.LISTEN_COMPLETE}var Gn=(Xn.prototype.operationForChild=function(t){return this.path.isEmpty()?new Xn(this.source,Mt.Empty,this.snap.getImmediateChild(t)):new Xn(this.source,this.path.popFront(),this.snap)},Xn);function Xn(t,e,n){this.source=t,this.path=e,this.snap=n,this.type=Mn.OVERWRITE}var $n=(Jn.prototype.operationForChild=function(t){if(this.path.isEmpty()){var e=this.children.subtree(new Mt(t));return e.isEmpty()?null:e.value?new Gn(this.source,Mt.Empty,e.value):new Jn(this.source,Mt.Empty,e)}return y(this.path.getFront()===t,"Can't get a merge for a child not on the path of the operation"),new Jn(this.source,this.path.popFront(),this.children)},Jn.prototype.toString=function(){return"Operation("+this.path+": "+this.source.toString()+" merge: "+this.children.toString()+")"},Jn);function Jn(t,e,n){this.source=t,this.path=e,this.children=n,this.type=Mn.MERGE}var Zn=(tr.prototype.isFullyInitialized=function(){return this.fullyInitialized_},tr.prototype.isFiltered=function(){return this.filtered_},tr.prototype.isCompleteForPath=function(t){if(t.isEmpty())return this.isFullyInitialized()&&!this.filtered_;t=t.getFront();return this.isCompleteForChild(t)},tr.prototype.isCompleteForChild=function(t){return this.isFullyInitialized()&&!this.filtered_||this.node_.hasChild(t)},tr.prototype.getNode=function(){return this.node_},tr);function tr(t,e,n){this.node_=t,this.fullyInitialized_=e,this.filtered_=n}var er=(nr.prototype.updateEventSnap=function(t,e,n){return new nr(new Zn(t,e,n),this.serverCache_)},nr.prototype.updateServerSnap=function(t,e,n){return new nr(this.eventCache_,new Zn(t,e,n))},nr.prototype.getEventCache=function(){return this.eventCache_},nr.prototype.getCompleteEventSnap=function(){return this.eventCache_.isFullyInitialized()?this.eventCache_.getNode():null},nr.prototype.getServerCache=function(){return this.serverCache_},nr.prototype.getCompleteServerSnap=function(){return this.serverCache_.isFullyInitialized()?this.serverCache_.getNode():null},nr.Empty=new nr(new Zn(en.EMPTY_NODE,!1,!1),new Zn(en.EMPTY_NODE,!1,!1)),nr);function nr(t,e){this.eventCache_=t,this.serverCache_=e}var rr=(ir.valueChange=function(t){return new ir(ir.VALUE,t)},ir.childAddedChange=function(t,e){return new ir(ir.CHILD_ADDED,e,t)},ir.childRemovedChange=function(t,e){return new ir(ir.CHILD_REMOVED,e,t)},ir.childChangedChange=function(t,e,n){return new ir(ir.CHILD_CHANGED,e,t,n)},ir.childMovedChange=function(t,e){return new ir(ir.CHILD_MOVED,e,t)},ir.CHILD_ADDED="child_added",ir.CHILD_REMOVED="child_removed",ir.CHILD_CHANGED="child_changed",ir.CHILD_MOVED="child_moved",ir.VALUE="value",ir);function ir(t,e,n,r,i){this.type=t,this.snapshotNode=e,this.childName=n,this.oldSnap=r,this.prevName=i}var or=(sr.prototype.updateChild=function(t,e,n,r,i,o){y(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(rr.childRemovedChange(e,s)):y(t.isLeafNode(),"A child remove without an old child only makes sense on a leaf node"):s.isEmpty()?o.trackChildChange(rr.childAddedChange(e,n)):o.trackChildChange(rr.childChangedChange(e,n,s))),t.isLeafNode()&&n.isEmpty()?t:t.updateImmediateChild(e,n).withIndex(this.index_))},sr.prototype.updateFullNode=function(r,n,i){return null!=i&&(r.isLeafNode()||r.forEachChild(Fe,function(t,e){n.hasChild(t)||i.trackChildChange(rr.childRemovedChange(t,e))}),n.isLeafNode()||n.forEachChild(Fe,function(t,e){var n;r.hasChild(t)?(n=r.getImmediateChild(t)).equals(e)||i.trackChildChange(rr.childChangedChange(t,e,n)):i.trackChildChange(rr.childAddedChange(t,e))})),n.withIndex(this.index_)},sr.prototype.updatePriority=function(t,e){return t.isEmpty()?en.EMPTY_NODE:t.updatePriority(e)},sr.prototype.filtersNodes=function(){return!1},sr.prototype.getIndexedFilter=function(){return this},sr.prototype.getIndex=function(){return this.index_},sr);function sr(t){this.index_=t}var ar=(hr.prototype.trackChildChange=function(t){var e=t.type,n=t.childName;y(e===rr.CHILD_ADDED||e===rr.CHILD_CHANGED||e===rr.CHILD_REMOVED,"Only child changes supported for tracking"),y(".priority"!==n,"Only non-priority child changes can be tracked.");var r=this.changeMap.get(n);if(r){var i=r.type;if(e===rr.CHILD_ADDED&&i===rr.CHILD_REMOVED)this.changeMap.set(n,rr.childChangedChange(n,t.snapshotNode,r.snapshotNode));else if(e===rr.CHILD_REMOVED&&i===rr.CHILD_ADDED)this.changeMap.delete(n);else if(e===rr.CHILD_REMOVED&&i===rr.CHILD_CHANGED)this.changeMap.set(n,rr.childRemovedChange(n,r.oldSnap));else if(e===rr.CHILD_CHANGED&&i===rr.CHILD_ADDED)this.changeMap.set(n,rr.childAddedChange(n,t.snapshotNode));else{if(e!==rr.CHILD_CHANGED||i!==rr.CHILD_CHANGED)throw c("Illegal combination of changes: "+t+" occurred after "+r);this.changeMap.set(n,rr.childChangedChange(n,t.snapshotNode,r.oldSnap))}}else this.changeMap.set(n,t)},hr.prototype.getChanges=function(){return Array.from(this.changeMap.values())},hr);function hr(){this.changeMap=new Map}function lr(){}var ur=new(lr.prototype.getCompleteChild=function(t){return null},lr.prototype.getChildAfterChild=function(t,e,n){return null},lr),cr=(pr.prototype.getCompleteChild=function(t){var e=this.viewCache_.getEventCache();if(e.isCompleteForChild(t))return e.getNode().getImmediateChild(t);e=null!=this.optCompleteServerCache_?new Zn(this.optCompleteServerCache_,!0,!1):this.viewCache_.getServerCache();return this.writes_.calcCompleteChild(t,e)},pr.prototype.getChildAfterChild=function(t,e,n){var r=null!=this.optCompleteServerCache_?this.optCompleteServerCache_:this.viewCache_.getCompleteServerSnap(),t=this.writes_.calcIndexedSlice(r,e,1,n,t);return 0===t.length?null:t[0]},pr);function pr(t,e,n){void 0===n&&(n=null),this.writes_=t,this.viewCache_=e,this.optCompleteServerCache_=n}var dr=function(t,e){this.viewCache=t,this.changes=e},fr=(_r.prototype.assertIndexed=function(t){y(t.getEventCache().getNode().isIndexed(this.filter_.getIndex()),"Event snap not indexed"),y(t.getServerCache().getNode().isIndexed(this.filter_.getIndex()),"Server snap not indexed")},_r.prototype.applyOperation=function(t,e,n,r){var i=new ar;if(e.type===Mn.OVERWRITE)var o=e,s=o.source.fromUser?this.applyUserOverwrite_(t,o.path,o.snap,n,r,i):(y(o.source.fromServer,"Unknown source."),a=o.source.tagged||t.getServerCache().isFiltered()&&!o.path.isEmpty(),this.applyServerOverwrite_(t,o.path,o.snap,n,r,a,i));else if(e.type===Mn.MERGE){o=e;s=o.source.fromUser?this.applyUserMerge_(t,o.path,o.children,n,r,i):(y(o.source.fromServer,"Unknown source."),a=o.source.tagged||t.getServerCache().isFiltered(),this.applyServerMerge_(t,o.path,o.children,n,r,a,i))}else if(e.type===Mn.ACK_USER_WRITE){var a=e;s=a.revert?this.revertUserWrite_(t,a.path,n,r,i):this.ackUserWrite_(t,a.path,a.affectedTree,n,r,i)}else{if(e.type!==Mn.LISTEN_COMPLETE)throw c("Unknown operation type: "+e.type);s=this.listenComplete_(t,e.path,n,i)}i=i.getChanges();return _r.maybeAddValueEvent_(t,s,i),new dr(s,i)},_r.maybeAddValueEvent_=function(t,e,n){var r,i,o=e.getEventCache();o.isFullyInitialized()&&(r=o.getNode().isLeafNode()||o.getNode().isEmpty(),i=t.getCompleteEventSnap(),(0<n.length||!t.getEventCache().isFullyInitialized()||r&&!o.getNode().equals(i)||!o.getNode().getPriority().equals(i.getPriority()))&&n.push(rr.valueChange(e.getCompleteEventSnap())))},_r.prototype.generateEventCacheAfterServerEvent_=function(t,e,n,r,i){var o=t.getEventCache();if(null!=n.shadowingWrite(e))return t;var s,a,h,l,u=void 0,c=void 0;return u=e.isEmpty()?(y(t.getServerCache().isFullyInitialized(),"If change path is empty, we must have complete server data"),t.getServerCache().isFiltered()?(s=(s=t.getCompleteServerSnap())instanceof en?s:en.EMPTY_NODE,s=n.calcCompleteEventChildren(s),this.filter_.updateFullNode(t.getEventCache().getNode(),s,i)):(a=n.calcCompleteEventCache(t.getCompleteServerSnap()),this.filter_.updateFullNode(t.getEventCache().getNode(),a,i))):".priority"===(a=e.getFront())?(y(1===e.getLength(),"Can't have a priority with additional path components"),h=o.getNode(),c=t.getServerCache().getNode(),null!=(l=n.calcEventCacheAfterServerOverwrite(e,h,c))?this.filter_.updatePriority(h,l):o.getNode()):(h=e.popFront(),l=void 0,null!=(l=o.isCompleteForChild(a)?(c=t.getServerCache().getNode(),null!=(c=n.calcEventCacheAfterServerOverwrite(e,o.getNode(),c))?o.getNode().getImmediateChild(a).updateChild(h,c):o.getNode().getImmediateChild(a)):n.calcCompleteChild(a,t.getServerCache()))?this.filter_.updateChild(o.getNode(),a,l,h,r,i):o.getNode()),t.updateEventSnap(u,o.isFullyInitialized()||e.isEmpty(),this.filter_.filtersNodes())},_r.prototype.applyServerOverwrite_=function(t,e,n,r,i,o,s){var a=t.getServerCache(),h=o?this.filter_:this.filter_.getIndexedFilter();if(e.isEmpty())u=h.updateFullNode(a.getNode(),n,null);else if(h.filtersNodes()&&!a.isFiltered())var l=a.getNode().updateChild(e,n),u=h.updateFullNode(a.getNode(),l,null);else{o=e.getFront();if(!a.isCompleteForPath(e)&&1<e.getLength())return t;l=e.popFront(),n=a.getNode().getImmediateChild(o).updateChild(l,n);u=".priority"===o?h.updatePriority(a.getNode(),n):h.updateChild(a.getNode(),o,n,l,ur,null)}h=t.updateServerSnap(u,a.isFullyInitialized()||e.isEmpty(),h.filtersNodes()),i=new cr(r,h,i);return this.generateEventCacheAfterServerEvent_(h,e,r,i,s)},_r.prototype.applyUserOverwrite_=function(t,e,n,r,i,o){var s,a,h=t.getEventCache(),l=new cr(r,t,i);return e.isEmpty()?(a=this.filter_.updateFullNode(t.getEventCache().getNode(),n,o),t.updateEventSnap(a,!0,this.filter_.filtersNodes())):".priority"===(s=e.getFront())?(a=this.filter_.updatePriority(t.getEventCache().getNode(),n),t.updateEventSnap(a,h.isFullyInitialized(),h.isFiltered())):(r=e.popFront(),i=h.getNode().getImmediateChild(s),a=void 0,a=r.isEmpty()?n:null!=(e=l.getCompleteChild(s))?".priority"===r.getBack()&&e.getChild(r.parent()).isEmpty()?e:e.updateChild(r,n):en.EMPTY_NODE,i.equals(a)?t:(o=this.filter_.updateChild(h.getNode(),s,a,r,l,o),t.updateEventSnap(o,h.isFullyInitialized(),this.filter_.filtersNodes())))},_r.cacheHasChild_=function(t,e){return t.getEventCache().isCompleteForChild(e)},_r.prototype.applyUserMerge_=function(n,r,t,i,o,s){var a=this,h=n;return t.foreach(function(t,e){t=r.child(t);_r.cacheHasChild_(n,t.getFront())&&(h=a.applyUserOverwrite_(h,t,e,i,o,s))}),t.foreach(function(t,e){t=r.child(t);_r.cacheHasChild_(n,t.getFront())||(h=a.applyUserOverwrite_(h,t,e,i,o,s))}),h},_r.prototype.applyMerge_=function(n,t){return t.foreach(function(t,e){n=n.updateChild(t,e)}),n},_r.prototype.applyServerMerge_=function(r,t,e,i,o,s,a){var h=this;if(r.getServerCache().getNode().isEmpty()&&!r.getServerCache().isFullyInitialized())return r;var l=r,e=t.isEmpty()?e:Bn.Empty.setTree(t,e),u=r.getServerCache().getNode();return e.children.inorderTraversal(function(t,e){var n;u.hasChild(t)&&(n=r.getServerCache().getNode().getImmediateChild(t),e=h.applyMerge_(n,e),l=h.applyServerOverwrite_(l,new Mt(t),e,i,o,s,a))}),e.children.inorderTraversal(function(t,e){var n=!r.getServerCache().isCompleteForChild(t)&&null==e.value;u.hasChild(t)||n||(n=r.getServerCache().getNode().getImmediateChild(t),e=h.applyMerge_(n,e),l=h.applyServerOverwrite_(l,new Mt(t),e,i,o,s,a))}),l},_r.prototype.ackUserWrite_=function(t,r,e,n,i,o){if(null!=n.shadowingWrite(r))return t;var s=t.getServerCache().isFiltered(),a=t.getServerCache();if(null!=e.value){if(r.isEmpty()&&a.isFullyInitialized()||a.isCompleteForPath(r))return this.applyServerOverwrite_(t,r,a.getNode().getChild(r),n,i,s,o);if(r.isEmpty()){var h=Bn.Empty;return a.getNode().forEachChild(Te,function(t,e){h=h.set(new Mt(t),e)}),this.applyServerMerge_(t,r,h,n,i,s,o)}return t}var l=Bn.Empty;return e.foreach(function(t,e){var n=r.child(t);a.isCompleteForPath(n)&&(l=l.set(t,a.getNode().getChild(n)))}),this.applyServerMerge_(t,r,l,n,i,s,o)},_r.prototype.listenComplete_=function(t,e,n,r){var i=t.getServerCache(),i=t.updateServerSnap(i.getNode(),i.isFullyInitialized()||e.isEmpty(),i.isFiltered());return this.generateEventCacheAfterServerEvent_(i,e,n,ur,r)},_r.prototype.revertUserWrite_=function(t,e,n,r,i){var o;if(null!=n.shadowingWrite(e))return t;var s,a,h=new cr(n,t,r),l=t.getEventCache().getNode(),r=void 0;return e.isEmpty()||".priority"===e.getFront()?(a=void 0,a=t.getServerCache().isFullyInitialized()?n.calcCompleteEventCache(t.getCompleteServerSnap()):(s=t.getServerCache().getNode(),y(s instanceof en,"serverChildren would be complete if leaf node"),n.calcCompleteEventChildren(s)),r=this.filter_.updateFullNode(l,a,i)):(s=e.getFront(),null==(a=n.calcCompleteChild(s,t.getServerCache()))&&t.getServerCache().isCompleteForChild(s)&&(a=l.getImmediateChild(s)),(r=null!=a?this.filter_.updateChild(l,s,a,e.popFront(),h,i):t.getEventCache().getNode().hasChild(s)?this.filter_.updateChild(l,s,en.EMPTY_NODE,e.popFront(),h,i):l).isEmpty()&&t.getServerCache().isFullyInitialized()&&(o=n.calcCompleteEventCache(t.getCompleteServerSnap())).isLeafNode()&&(r=this.filter_.updateFullNode(r,o,i))),o=t.getServerCache().isFullyInitialized()||null!=n.shadowingWrite(Mt.Empty),t.updateEventSnap(r,o,this.filter_.filtersNodes())},_r);function _r(t){this.filter_=t}var yr=(gr.prototype.generateEventsForChanges=function(t,e,n){var r=this,i=[],o=[];return t.forEach(function(t){t.type===rr.CHILD_CHANGED&&r.index_.indexedValueChanged(t.oldSnap,t.snapshotNode)&&o.push(rr.childMovedChange(t.childName,t.snapshotNode))}),this.generateEventsForType_(i,rr.CHILD_REMOVED,t,n,e),this.generateEventsForType_(i,rr.CHILD_ADDED,t,n,e),this.generateEventsForType_(i,rr.CHILD_MOVED,o,n,e),this.generateEventsForType_(i,rr.CHILD_CHANGED,t,n,e),this.generateEventsForType_(i,rr.VALUE,t,n,e),i},gr.prototype.generateEventsForType_=function(r,e,t,i,o){var s=this,t=t.filter(function(t){return t.type===e});t.sort(this.compareChanges_.bind(this)),t.forEach(function(e){var n=s.materializeSingleChange_(e,o);i.forEach(function(t){t.respondsTo(e.type)&&r.push(t.createEvent(n,s.query_))})})},gr.prototype.materializeSingleChange_=function(t,e){return"value"===t.type||"child_removed"===t.type||(t.prevName=e.getPredecessorChildName(t.childName,t.snapshotNode,this.index_)),t},gr.prototype.compareChanges_=function(t,e){if(null==t.childName||null==e.childName)throw c("Should only compare child_ events.");t=new ge(t.childName,t.snapshotNode),e=new ge(e.childName,e.snapshotNode);return this.index_.compare(t,e)},gr);function gr(t){this.query_=t,this.index_=this.query_.getQueryParams().getIndex()}var vr,mr=(Cr.prototype.getQuery=function(){return this.query_},Cr.prototype.getServerCache=function(){return this.viewCache_.getServerCache().getNode()},Cr.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},Cr.prototype.isEmpty=function(){return 0===this.eventRegistrations_.length},Cr.prototype.addEventRegistration=function(t){this.eventRegistrations_.push(t)},Cr.prototype.removeEventRegistration=function(t,e){var n,r=[];if(e&&(y(null==t,"A cancel should cancel all event registrations."),n=this.query_.path,this.eventRegistrations_.forEach(function(t){t=t.createCancelEvent(e,n);t&&r.push(t)})),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 r},Cr.prototype.applyOperation=function(t,e,n){t.type===Mn.MERGE&&null!==t.source.queryId&&(y(this.viewCache_.getCompleteServerSnap(),"We should always have a full cache before handling merges"),y(this.viewCache_.getCompleteEventSnap(),"Missing event cache, even though we have a server cache"));var r=this.viewCache_,n=this.processor_.applyOperation(r,t,e,n);return this.processor_.assertIndexed(n.viewCache),y(n.viewCache.getServerCache().isFullyInitialized()||!r.getServerCache().isFullyInitialized(),"Once a server snap is complete, it should never go back"),this.viewCache_=n.viewCache,this.generateEventsForChanges_(n.changes,n.viewCache.getEventCache().getNode(),null)},Cr.prototype.getInitialEvents=function(t){var e=this.viewCache_.getEventCache(),n=[];return e.getNode().isLeafNode()||e.getNode().forEachChild(Fe,function(t,e){n.push(rr.childAddedChange(t,e))}),e.isFullyInitialized()&&n.push(rr.valueChange(e.getNode())),this.generateEventsForChanges_(n,e.getNode(),t)},Cr.prototype.generateEventsForChanges_=function(t,e,n){n=n?[n]:this.eventRegistrations_;return this.eventGenerator_.generateEventsForChanges(t,e,n)},Cr);function Cr(t,e){this.query_=t,this.eventRegistrations_=[];var n=this.query_.getQueryParams(),r=new or(n.getIndex()),i=n.getNodeFilter();this.processor_=new fr(i);var o=e.getServerCache(),t=e.getEventCache(),n=r.updateFullNode(en.EMPTY_NODE,o.getNode(),null),e=i.updateFullNode(en.EMPTY_NODE,t.getNode(),null),r=new Zn(n,o.isFullyInitialized(),r.filtersNodes()),i=new Zn(e,t.isFullyInitialized(),i.filtersNodes());this.viewCache_=new er(i,r),this.eventGenerator_=new yr(this.query_)}var Er=(Object.defineProperty(wr,"__referenceConstructor",{get:function(){return y(vr,"Reference.ts has not been loaded"),vr},set:function(t){y(!vr,"__referenceConstructor has already been defined"),vr=t},enumerable:!1,configurable:!0}),wr.prototype.isEmpty=function(){return 0===this.views.size},wr.prototype.applyOperation=function(t,e,n){var r,i,o=t.source.queryId;if(null!==o){var s=this.views.get(o);return y(null!=s,"SyncTree gave us an op for an invalid query."),s.applyOperation(t,e,n)}var a=[];try{for(var h=f(this.views.values()),l=h.next();!l.done;l=h.next())s=l.value,a=a.concat(s.applyOperation(t,e,n))}catch(t){r={error:t}}finally{try{l&&!l.done&&(i=h.return)&&i.call(h)}finally{if(r)throw r.error}}return a},wr.prototype.addEventRegistration=function(t,e,n,r,i){var o,s,a=t.queryIdentifier(),h=this.views.get(a);return h||(s=!1,s=!!(o=n.calcCompleteEventCache(i?r:null))||(o=r instanceof en?n.calcCompleteEventChildren(r):en.EMPTY_NODE,!1),i=new er(new Zn(o,s,!1),new Zn(r,i,!1)),h=new mr(t,i),this.views.set(a,h)),h.addEventRegistration(e),h.getInitialEvents(e)},wr.prototype.removeEventRegistration=function(t,e,n){var r,i,o=t.queryIdentifier(),s=[],a=[],h=this.hasCompleteView();if("default"===o)try{for(var l=f(this.views.entries()),u=l.next();!u.done;u=l.next()){var c=_(u.value,2),p=c[0],d=c[1],a=a.concat(d.removeEventRegistration(e,n));d.isEmpty()&&(this.views.delete(p),d.getQuery().getQueryParams().loadsAllData()||s.push(d.getQuery()))}}catch(t){r={error:t}}finally{try{u&&!u.done&&(i=l.return)&&i.call(l)}finally{if(r)throw r.error}}else(d=this.views.get(o))&&(a=a.concat(d.removeEventRegistration(e,n)),d.isEmpty()&&(this.views.delete(o),d.getQuery().getQueryParams().loadsAllData()||s.push(d.getQuery())));return h&&!this.hasCompleteView()&&s.push(new wr.__referenceConstructor(t.repo,t.path)),{removed:s,events:a}},wr.prototype.getQueryViews=function(){var e,t,n=[];try{for(var r=f(this.views.values()),i=r.next();!i.done;i=r.next()){var o=i.value;o.getQuery().getQueryParams().loadsAllData()||n.push(o)}}catch(t){e={error:t}}finally{try{i&&!i.done&&(t=r.return)&&t.call(r)}finally{if(e)throw e.error}}return n},wr.prototype.getCompleteServerCache=function(t){var e,n,r=null;try{for(var i=f(this.views.values()),o=i.next();!o.done;o=i.next())var s=o.value,r=r||s.getCompleteServerCache(t)}catch(t){e={error:t}}finally{try{o&&!o.done&&(n=i.return)&&n.call(i)}finally{if(e)throw e.error}}return r},wr.prototype.viewForQuery=function(t){if(t.getQueryParams().loadsAllData())return this.getCompleteView();t=t.queryIdentifier();return this.views.get(t)},wr.prototype.viewExistsForQuery=function(t){return null!=this.viewForQuery(t)},wr.prototype.hasCompleteView=function(){return null!=this.getCompleteView()},wr.prototype.getCompleteView=function(){var e,t;try{for(var n=f(this.views.values()),r=n.next();!r.done;r=n.next()){var i=r.value;if(i.getQuery().getQueryParams().loadsAllData())return i}}catch(t){e={error:t}}finally{try{r&&!r.done&&(t=n.return)&&t.call(n)}finally{if(e)throw e.error}}return null},wr);function wr(){this.views=new Map}var br=(Sr.prototype.addWrite=function(t,e){if(t.isEmpty())return new Sr(new Bn(e));var n=this.writeTree_.findRootMostValueAndPath(t);if(null!=n){var r=n.path,i=n.value,n=Mt.relativePath(r,t),i=i.updateChild(n,e);return new Sr(this.writeTree_.set(r,i))}e=new Bn(e);return new Sr(this.writeTree_.setTree(t,e))},Sr.prototype.addWrites=function(n,t){var r=this;return Ot(t,function(t,e){r=r.addWrite(n.child(t),e)}),r},Sr.prototype.removeWrite=function(t){return t.isEmpty()?Sr.Empty:new Sr(this.writeTree_.setTree(t,Bn.Empty))},Sr.prototype.hasCompleteWrite=function(t){return null!=this.getCompleteNode(t)},Sr.prototype.getCompleteNode=function(t){var e=this.writeTree_.findRootMostValueAndPath(t);return null!=e?this.writeTree_.get(e.path).getChild(Mt.relativePath(e.path,t)):null},Sr.prototype.getCompleteChildren=function(){var n=[],t=this.writeTree_.value;return null!=t?t.isLeafNode()||t.forEachChild(Fe,function(t,e){n.push(new ge(t,e))}):this.writeTree_.children.inorderTraversal(function(t,e){null!=e.value&&n.push(new ge(t,e.value))}),n},Sr.prototype.childCompoundWrite=function(t){if(t.isEmpty())return this;var e=this.getCompleteNode(t);return new Sr(null!=e?new Bn(e):this.writeTree_.subtree(t))},Sr.prototype.isEmpty=function(){return this.writeTree_.isEmpty()},Sr.prototype.apply=function(t){return function n(r,t,i){{if(null!=t.value)return i.updateChild(r,t.value);var o=null;return t.children.inorderTraversal(function(t,e){".priority"===t?(y(null!==e.value,"Priority writes must always be leaf nodes"),o=e.value):i=n(r.child(t),e,i)}),i.getChild(r).isEmpty()||null===o||(i=i.updateChild(r.child(".priority"),o)),i}}(Mt.Empty,this.writeTree_,t)},Sr.Empty=new Sr(new Bn(null)),Sr);function Sr(t){this.writeTree_=t}var Tr=(Ir.prototype.childWrites=function(t){return new Nr(t,this)},Ir.prototype.addOverwrite=function(t,e,n,r){y(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},Ir.prototype.addMerge=function(t,e,n){y(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},Ir.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},Ir.prototype.removeWrite=function(e){var n=this,t=this.allWrites_.findIndex(function(t){return t.writeId===e});y(0<=t,"removeWrite called with nonexistent writeId.");var r=this.allWrites_[t];this.allWrites_.splice(t,1);for(var i=r.visible,o=!1,s=this.allWrites_.length-1;i&&0<=s;){var a=this.allWrites_[s];a.visible&&(t<=s&&this.recordContainsPath_(a,r.path)?i=!1:r.path.contains(a.path)&&(o=!0)),s--}return!!i&&(o?this.resetTree_():r.snap?this.visibleWrites_=this.visibleWrites_.removeWrite(r.path):Ot(r.children,function(t){n.visibleWrites_=n.visibleWrites_.removeWrite(r.path.child(t))}),!0)},Ir.prototype.getCompleteWriteData=function(t){return this.visibleWrites_.getCompleteNode(t)},Ir.prototype.calcCompleteEventCache=function(e,t,n,r){if(n||r){var i=this.visibleWrites_.childCompoundWrite(e);if(!r&&i.isEmpty())return t;if(r||null!=t||i.hasCompleteWrite(Mt.Empty)){var o=Ir.layerTree_(this.allWrites_,function(t){return(t.visible||r)&&(!n||!~n.indexOf(t.writeId))&&(t.path.contains(e)||e.contains(t.path))},e),s=t||en.EMPTY_NODE;return o.apply(s)}return null}o=this.visibleWrites_.getCompleteNode(e);if(null!=o)return o;o=this.visibleWrites_.childCompoundWrite(e);if(o.isEmpty())return t;if(null!=t||o.hasCompleteWrite(Mt.Empty)){var s=t||en.EMPTY_NODE;return o.apply(s)}return null},Ir.prototype.calcCompleteEventChildren=function(t,e){var n=en.EMPTY_NODE,r=this.visibleWrites_.getCompleteNode(t);if(r)return r.isLeafNode()||r.forEachChild(Fe,function(t,e){n=n.updateImmediateChild(t,e)}),n;if(e){var i=this.visibleWrites_.childCompoundWrite(t);return e.forEachChild(Fe,function(t,e){e=i.childCompoundWrite(new Mt(t)).apply(e);n=n.updateImmediateChild(t,e)}),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},Ir.prototype.calcEventCacheAfterServerOverwrite=function(t,e,n,r){y(n||r,"Either existingEventSnap or existingServerSnap must exist");t=t.child(e);if(this.visibleWrites_.hasCompleteWrite(t))return null;t=this.visibleWrites_.childCompoundWrite(t);return t.isEmpty()?r.getChild(e):t.apply(r.getChild(e))},Ir.prototype.calcCompleteChild=function(t,e,n){var r=t.child(e),t=this.visibleWrites_.getCompleteNode(r);return null!=t?t:n.isCompleteForChild(e)?this.visibleWrites_.childCompoundWrite(r).apply(n.getNode().getImmediateChild(e)):null},Ir.prototype.shadowingWrite=function(t){return this.visibleWrites_.getCompleteNode(t)},Ir.prototype.calcIndexedSlice=function(t,e,n,r,i,o){var s,a=this.visibleWrites_.childCompoundWrite(t),t=a.getCompleteNode(Mt.Empty);if(null!=t)s=t;else{if(null==e)return[];s=a.apply(e)}if((s=s.withIndex(o)).isEmpty()||s.isLeafNode())return[];for(var h=[],l=o.getCompare(),u=i?s.getReverseIteratorFrom(n,o):s.getIteratorFrom(n,o),c=u.getNext();c&&h.length<r;)0!==l(c,n)&&h.push(c),c=u.getNext();return h},Ir.prototype.recordContainsPath_=function(t,e){if(t.snap)return t.path.contains(e);for(var n in t.children)if(t.children.hasOwnProperty(n)&&t.path.child(n).contains(e))return!0;return!1},Ir.prototype.resetTree_=function(){this.visibleWrites_=Ir.layerTree_(this.allWrites_,Ir.DefaultFilter_,Mt.Empty),0<this.allWrites_.length?this.lastWriteId_=this.allWrites_[this.allWrites_.length-1].writeId:this.lastWriteId_=-1},Ir.DefaultFilter_=function(t){return t.visible},Ir.layerTree_=function(t,e,n){for(var r=br.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=Mt.relativePath(n,s),r=r.addWrite(a,o.snap)):s.contains(n)&&(a=Mt.relativePath(s,n),r=r.addWrite(Mt.Empty,o.snap.getChild(a)));else{if(!o.children)throw c("WriteRecord should have .snap or .children");n.contains(s)?(a=Mt.relativePath(n,s),r=r.addWrites(a,o.children)):s.contains(n)&&((a=Mt.relativePath(s,n)).isEmpty()?r=r.addWrites(Mt.Empty,o.children):(o=x(o.children,a.getFront()))&&(a=o.getChild(a.popFront()),r=r.addWrite(Mt.Empty,a)))}}}return r},Ir);function Ir(){this.visibleWrites_=br.Empty,this.allWrites_=[],this.lastWriteId_=-1}var Nr=(Rr.prototype.calcCompleteEventCache=function(t,e,n){return this.writeTree_.calcCompleteEventCache(this.treePath_,t,e,n)},Rr.prototype.calcCompleteEventChildren=function(t){return this.writeTree_.calcCompleteEventChildren(this.treePath_,t)},Rr.prototype.calcEventCacheAfterServerOverwrite=function(t,e,n){return this.writeTree_.calcEventCacheAfterServerOverwrite(this.treePath_,t,e,n)},Rr.prototype.shadowingWrite=function(t){return this.writeTree_.shadowingWrite(this.treePath_.child(t))},Rr.prototype.calcIndexedSlice=function(t,e,n,r,i){return this.writeTree_.calcIndexedSlice(this.treePath_,t,e,n,r,i)},Rr.prototype.calcCompleteChild=function(t,e){return this.writeTree_.calcCompleteChild(this.treePath_,t,e)},Rr.prototype.child=function(t){return new Rr(this.treePath_.child(t),this.writeTree_)},Rr);function Rr(t,e){this.treePath_=t,this.writeTree_=e}var Pr=(Dr.prototype.applyUserOverwrite=function(t,e,n,r){return this.pendingWriteTree_.addOverwrite(t,e,n,r),r?this.applyOperationToSyncPoints_(new Gn(Qn.User,t,e)):[]},Dr.prototype.applyUserMerge=function(t,e,n){this.pendingWriteTree_.addMerge(t,e,n);e=Bn.fromObject(e);return this.applyOperationToSyncPoints_(new $n(Qn.User,t,e))},Dr.prototype.ackUserWrite=function(t,e){void 0===e&&(e=!1);var n=this.pendingWriteTree_.getWrite(t);if(this.pendingWriteTree_.removeWrite(t)){var r=Bn.Empty;return null!=n.snap?r=r.set(Mt.Empty,!0):Ot(n.children,function(t,e){r=r.set(new Mt(t),e)}),this.applyOperationToSyncPoints_(new Hn(n.path,r,e))}return[]},Dr.prototype.applyServerOverwrite=function(t,e){return this.applyOperationToSyncPoints_(new Gn(Qn.Server,t,e))},Dr.prototype.applyServerMerge=function(t,e){e=Bn.fromObject(e);return this.applyOperationToSyncPoints_(new $n(Qn.Server,t,e))},Dr.prototype.applyListenComplete=function(t){return this.applyOperationToSyncPoints_(new Kn(Qn.Server,t))},Dr.prototype.applyTaggedQueryOverwrite=function(t,e,n){var r=this.queryKeyForTag_(n);if(null==r)return[];n=Dr.parseQueryKey_(r),r=n.path,n=n.queryId,t=Mt.relativePath(r,t),e=new Gn(Qn.forServerTaggedQuery(n),t,e);return this.applyTaggedOperation_(r,e)},Dr.prototype.applyTaggedQueryMerge=function(t,e,n){var r=this.queryKeyForTag_(n);if(r){n=Dr.parseQueryKey_(r),r=n.path,n=n.queryId,t=Mt.relativePath(r,t),e=Bn.fromObject(e),e=new $n(Qn.forServerTaggedQuery(n),t,e);return this.applyTaggedOperation_(r,e)}return[]},Dr.prototype.applyTaggedListenComplete=function(t,e){var n=this.queryKeyForTag_(e);if(n){e=Dr.parseQueryKey_(n),n=e.path,e=e.queryId,t=Mt.relativePath(n,t),t=new Kn(Qn.forServerTaggedQuery(e),t);return this.applyTaggedOperation_(n,t)}return[]},Dr.prototype.addEventRegistration=function(t,e){var n=t.path,r=null,i=!1;this.syncPointTree_.foreachOnPath(n,function(t,e){t=Mt.relativePath(t,n);r=r||e.getCompleteServerCache(t),i=i||e.hasCompleteView()});var o=this.syncPointTree_.get(n);o?(i=i||o.hasCompleteView(),r=r||o.getCompleteServerCache(Mt.Empty)):(o=new Er,this.syncPointTree_=this.syncPointTree_.set(n,o)),null!=r?l=!0:(l=!1,r=en.EMPTY_NODE,this.syncPointTree_.subtree(n).foreachChild(function(t,e){e=e.getCompleteServerCache(Mt.Empty);e&&(r=r.updateImmediateChild(t,e))}));var s,a=o.viewExistsForQuery(t);a||t.getQueryParams().loadsAllData()||(h=Dr.makeQueryKey_(t),y(!this.queryToTagMap.has(h),"View does not exist, but we have a tag"),s=Dr.getNextQueryTag_(),this.queryToTagMap.set(h,s),this.tagToQueryMap.set(s,h));var h=this.pendingWriteTree_.childWrites(n),l=o.addEventRegistration(t,e,h,r,l);return a||i||(o=o.viewForQuery(t),l=l.concat(this.setupListener_(t,o))),l},Dr.prototype.removeEventRegistration=function(t,e,n){var r=this,i=t.path,o=this.syncPointTree_.get(i),s=[];if(o&&("default"===t.queryIdentifier()||o.viewExistsForQuery(t))){var a=o.removeEventRegistration(t,e,n);o.isEmpty()&&(this.syncPointTree_=this.syncPointTree_.remove(i));e=a.removed,s=a.events,o=-1!==e.findIndex(function(t){return t.getQueryParams().loadsAllData()}),a=this.syncPointTree_.findOnPath(i,function(t,e){return e.hasCompleteView()});if(o&&!a){i=this.syncPointTree_.subtree(i);if(!i.isEmpty())for(var h=this.collectDistinctViewsForSubTree_(i),l=0;l<h.length;++l){var u=h[l],c=u.getQuery(),u=this.createListenerForView_(u);this.listenProvider_.startListening(Dr.queryForListening_(c),this.tagForQuery_(c),u.hashFn,u.onComplete)}}!a&&0<e.length&&!n&&(o?this.listenProvider_.stopListening(Dr.queryForListening_(t),null):e.forEach(function(t){var e=r.queryToTagMap.get(Dr.makeQueryKey_(t));r.listenProvider_.stopListening(Dr.queryForListening_(t),e)})),this.removeTags_(e)}return s},Dr.prototype.calcCompleteEventCache=function(n,t){var e=this.pendingWriteTree_,r=this.syncPointTree_.findOnPath(n,function(t,e){t=Mt.relativePath(t,n),t=e.getCompleteServerCache(t);if(t)return t});return e.calcCompleteEventCache(n,r,t,!0)},Dr.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()),Ot(n,function(t,e){r=r.concat(e)}),r})},Dr.prototype.removeTags_=function(t){for(var e=0;e<t.length;++e){var n,r=t[e];r.getQueryParams().loadsAllData()||(n=Dr.makeQueryKey_(r),r=this.queryToTagMap.get(n),this.queryToTagMap.delete(n),this.tagToQueryMap.delete(r))}},Dr.queryForListening_=function(t){return t.getQueryParams().loadsAllData()&&!t.getQueryParams().isDefault()?t.getRef():t},Dr.prototype.setupListener_=function(t,e){var n=t.path,r=this.tagForQuery_(t),e=this.createListenerForView_(e),e=this.listenProvider_.startListening(Dr.queryForListening_(t),r,e.hashFn,e.onComplete),n=this.syncPointTree_.subtree(n);if(r)y(!n.value.hasCompleteView(),"If we're adding a query, it shouldn't be shadowed");else for(var i=n.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()}))),Ot(n,function(t,e){r=r.concat(e)}),r}),o=0;o<i.length;++o){var s=i[o];this.listenProvider_.stopListening(Dr.queryForListening_(s),this.tagForQuery_(s))}return e},Dr.prototype.createListenerForView_=function(t){var e=this,n=t.getQuery(),r=this.tagForQuery_(n);return{hashFn:function(){return(t.getServerCache()||en.EMPTY_NODE).hash()},onComplete:function(t){if("ok"===t)return r?e.applyTaggedListenComplete(n.path,r):e.applyListenComplete(n.path);t=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");n=new Error(t+" at "+e.path.toString()+": "+n);return n.code=t.toUpperCase(),n}(t,n);return e.removeEventRegistration(n,null,t)}}},Dr.makeQueryKey_=function(t){return t.path.toString()+"$"+t.queryIdentifier()},Dr.parseQueryKey_=function(t){var e=t.indexOf("$");return y(-1!==e&&e<t.length-1,"Bad queryKey."),{queryId:t.substr(e+1),path:new Mt(t.substr(0,e))}},Dr.prototype.queryKeyForTag_=function(t){return this.tagToQueryMap.get(t)},Dr.prototype.tagForQuery_=function(t){t=Dr.makeQueryKey_(t);return this.queryToTagMap.get(t)},Dr.getNextQueryTag_=function(){return Dr.nextQueryTag_++},Dr.prototype.applyTaggedOperation_=function(t,e){var n=this.syncPointTree_.get(t);y(n,"Missing sync point for query tag that we're tracking");t=this.pendingWriteTree_.childWrites(t);return n.applyOperation(e,t,null)},Dr.prototype.applyOperationToSyncPoints_=function(t){return this.applyOperationHelper_(t,this.syncPointTree_,null,this.pendingWriteTree_.childWrites(Mt.Empty))},Dr.prototype.applyOperationHelper_=function(t,e,n,r){if(t.path.isEmpty())return this.applyOperationDescendantsHelper_(t,e,n,r);var i=e.get(Mt.Empty);null==n&&null!=i&&(n=i.getCompleteServerCache(Mt.Empty));var o=[],s=t.path.getFront(),a=t.operationForChild(s),h=e.children.get(s);return h&&a&&(e=n?n.getImmediateChild(s):null,s=r.child(s),o=o.concat(this.applyOperationHelper_(a,h,e,s))),i&&(o=o.concat(i.applyOperation(t,r,n))),o},Dr.prototype.applyOperationDescendantsHelper_=function(i,t,o,s){var a=this,e=t.get(Mt.Empty);null==o&&null!=e&&(o=e.getCompleteServerCache(Mt.Empty));var h=[];return t.children.inorderTraversal(function(t,e){var 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this.reporters_[t]||(this.reporters_[t]=e()),this.reporters_[t]},Lr.collections_={},Lr.reporters_={},Lr);function Lr(){}var Mr=(Wr.prototype.get=function(){var t=this.collection_.get(),n=l({},t);return this.last_&&Ot(this.last_,function(t,e){n[t]=n[t]-e}),this.last_=t,n},Wr);function Wr(t){this.collection_=t,this.last_=null}var qr=(Qr.prototype.includeStat=function(t){this.statsToReport_[t]=!0},Qr.prototype.reportStats_=function(){var n=this,t=this.statsListener_.get(),r={},i=!1;Ot(t,function(t,e){0<e&&O(n.statsToReport_,t)&&(r[t]=e,i=!0)}),i&&this.server_.reportStats(r),At(this.reportStats_.bind(this),Math.floor(2*Math.random()*3e5))},Qr);function Qr(t,e){this.server_=e,this.statsToReport_={},this.statsListener_=new Mr(t);t=1e4+2e4*Math.random();At(this.reportStats_.bind(this),Math.floor(t))}var Ur=(Vr.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 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Trying anyway."),i=!0),i)this.transports_=[li];else{var o=this.transports_=[];try{for(var s=f(pi.ALL_TRANSPORTS),a=s.next();!a.done;a=s.next()){var h=a.value;h&&h.isAvailable()&&o.push(h)}}catch(t){e={error:t}}finally{try{a&&!a.done&&(n=s.return)&&n.call(s)}finally{if(e)throw e.error}}}},pi.prototype.initialTransport=function(){if(0<this.transports_.length)return this.transports_[0];throw new Error("No transports available")},pi.prototype.upgradeTransport=function(){return 1<this.transports_.length?this.transports_[1]:null},pi);function pi(t){this.initTransports_(t)}var di=(fi.prototype.start_=function(){var t=this,e=this.transportManager_.initialTransport();this.conn_=new e(this.nextTransportId_(),this.repoInfo_,this.applicationId_,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));e=e.healthyTimeout||0;0<e&&(this.healthyTimeout_=At(function(){t.healthyTimeout_=null,t.isHealthy_||(t.conn_&&102400<t.conn_.bytesReceived?(t.log_("Connection exceeded healthy timeout but has received "+t.conn_.bytesReceived+" bytes.  Marking connection healthy."),t.isHealthy_=!0,t.conn_.markConnectionHealthy()):t.conn_&&10240<t.conn_.bytesSent?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(e)))},fi.prototype.nextTransportId_=function(){return"c:"+this.id+":"+this.connectionCount++},fi.prototype.disconnReceiver_=function(e){var n=this;return function(t){e===n.conn_?n.onConnectionLost_(t):e===n.secondaryConn_?(n.log_("Secondary connection lost."),n.onSecondaryConnectionLost_()):n.log_("closing an old connection")}},fi.prototype.connReceiver_=function(e){var n=this;return function(t){2!==n.state_&&(e===n.rx_?n.onPrimaryMessageReceived_(t):e===n.secondaryConn_?n.onSecondaryMessageReceived_(t):n.log_("message on old connection"))}},fi.prototype.sendRequest=function(t){t={t:"d",d:t};this.sendData_(t)},fi.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)},fi.prototype.onSecondaryControl_=function(t){"t"in t&&("a"===(t=t.t)?this.upgradeIfSecondaryHealthy_():"r"===t?(this.log_("Got a reset on secondary, closing it"),this.secondaryConn_.close(),this.tx_!==this.secondaryConn_&&this.rx_!==this.secondaryConn_||this.close()):"o"===t&&(this.log_("got pong on secondary."),this.secondaryResponsesRequired_--,this.upgradeIfSecondaryHealthy_()))},fi.prototype.onSecondaryMessageReceived_=function(t){var e=ft("t",t),t=ft("d",t);if("c"===e)this.onSecondaryControl_(t);else{if("d"!==e)throw new Error("Unknown protocol layer: "+e);this.pendingDataMessages.push(t)}},fi.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:{}}}))},fi.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()},fi.prototype.onPrimaryMessageReceived_=function(t){var e=ft("t",t),t=ft("d",t);"c"===e?this.onControl_(t):"d"===e&&this.onDataMessage_(t)},fi.prototype.onDataMessage_=function(t){this.onPrimaryResponse_(),this.onMessage_(t)},fi.prototype.onPrimaryResponse_=function(){this.isHealthy_||(this.primaryResponsesRequired_--,this.primaryResponsesRequired_<=0&&(this.log_("Primary connection is healthy."),this.isHealthy_=!0,this.conn_.markConnectionHealthy()))},fi.prototype.onControl_=function(t){var e=ft("t",t);if("d"in t){t=t.d;if("h"===e)this.onHandshake_(t);else if("n"===e){this.log_("recvd end transmission on primary"),this.rx_=this.secondaryConn_;for(var n=0;n<this.pendingDataMessages.length;++n)this.onDataMessage_(this.pendingDataMessages[n]);this.pendingDataMessages=[],this.tryCleanupConnection()}else"s"===e?this.onConnectionShutdown_(t):"r"===e?this.onReset_(t):"e"===e?lt("Server Error: "+t):"o"===e?(this.log_("got pong on primary."),this.onPrimaryResponse_(),this.sendPingOnPrimaryIfNecessary_()):lt("Unknown control packet command: "+e)}},fi.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&&ct("Protocol version mismatch detected"),this.tryStartUpgrade_())},fi.prototype.tryStartUpgrade_=function(){var t=this.transportManager_.upgradeTransport();t&&this.startUpgrade_(t)},fi.prototype.startUpgrade_=function(t){var e=this;this.secondaryConn_=new t(this.nextTransportId_(),this.repoInfo_,this.applicationId_,this.sessionId),this.secondaryResponsesRequired_=t.responsesRequiredToBeHealthy||0;var n=this.connReceiver_(this.secondaryConn_),t=this.disconnReceiver_(this.secondaryConn_);this.secondaryConn_.open(n,t),At(function(){e.secondaryConn_&&(e.log_("Timed out trying to upgrade."),e.secondaryConn_.close())},Math.floor(6e4))},fi.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_())},fi.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):At(function(){n.sendPingOnPrimaryIfNecessary_()},Math.floor(5e3))},fi.prototype.sendPingOnPrimaryIfNecessary_=function(){this.isHealthy_||1!==this.state_||(this.log_("sending ping on primary."),this.sendData_({t:"c",d:{t:"p",d:{}}}))},fi.prototype.onSecondaryConnectionLost_=function(){var t=this.secondaryConn_;this.secondaryConn_=null,this.tx_!==t&&this.rx_!==t||this.close()},fi.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()&&(vt.remove("host:"+this.repoInfo_.host),this.repoInfo_.internalHost=this.repoInfo_.host)),this.close()},fi.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()},fi.prototype.sendData_=function(t){if(1!==this.state_)throw"Connection is not connected";this.tx_.send(t)},fi.prototype.close=function(){2!==this.state_&&(this.log_("Closing realtime connection."),this.state_=2,this.closeConnections_(),this.onDisconnect_&&(this.onDisconnect_(),this.onDisconnect_=null))},fi.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)},fi);function fi(t,e,n,r,i,o,s,a){this.id=t,this.repoInfo_=e,this.applicationId_=n,this.onMessage_=r,this.onReady_=i,this.onDisconnect_=o,this.onKill_=s,this.lastSessionId=a,this.connectionCount=0,this.pendingDataMessages=[],this.state_=0,this.log_=It("c:"+this.id+":"),this.transportManager_=new ci(e),this.log_("Connection created"),this.start_()}_i.prototype.put=function(t,e,n,r){},_i.prototype.merge=function(t,e,n,r){},_i.prototype.refreshAuthToken=function(t){},_i.prototype.onDisconnectPut=function(t,e,n){},_i.prototype.onDisconnectMerge=function(t,e,n){},_i.prototype.onDisconnectCancel=function(t,e){},_i.prototype.reportStats=function(t){},Ce=_i;function _i(){}var yi,gi=1e3,vi=3e5,mi=(n(Ci,yi=Ce),Ci.prototype.sendRequest=function(t,e,n){var r=++this.requestNumber_,e={r:r,a:t,b:e};this.log_(P(e)),y(this.connected_,"sendRequest call when we're not connected not allowed."),this.realtime_.sendRequest(e),n&&(this.requestCBHash_[r]=n)},Ci.prototype.get=function(t){var n=this,r=new g,i={p:t.path.toString(),q:t.queryObject()},e={action:"g",request:i,onComplete:function(t){var e=t.d;"ok"===t.s?(n.onDataUpdate_(i.p,e,!1,null),r.resolve(e)):r.reject(e)}};this.outstandingGets_.push(e),this.outstandingGetCount_++;var o=this.outstandingGets_.length-1;return this.connected_||setTimeout(function(){var t=n.outstandingGets_[o];void 0!==t&&e===t&&(delete n.outstandingGets_[o],n.outstandingGetCount_--,0===n.outstandingGetCount_&&(n.outstandingGets_=[]),n.log_("get "+o+" timed out on connection"),r.reject(new Error("Client is offline.")))},3e3),this.connected_&&this.sendGet_(o),r.promise},Ci.prototype.listen=function(t,e,n,r){var i=t.queryIdentifier(),o=t.path.toString();this.log_("Listen called for "+o+" "+i),this.listens.has(o)||this.listens.set(o,new Map),y(t.getQueryParams().isDefault()||!t.getQueryParams().loadsAllData(),"listen() called for non-default but complete query"),y(!this.listens.get(o).has(i),"listen() called twice for same path/queryId.");n={onComplete:r,hashFn:e,query:t,tag:n};this.listens.get(o).set(i,n),this.connected_&&this.sendListen_(n)},Ci.prototype.sendGet_=function(e){var n=this,r=this.outstandingGets_[e];this.sendRequest("g",r.request,function(t){delete n.outstandingGets_[e],n.outstandingGetCount_--,0===n.outstandingGetCount_&&(n.outstandingGets_=[]),r.onComplete&&r.onComplete(t)})},Ci.prototype.sendListen_=function(r){var i=this,o=r.query,s=o.path.toString(),a=o.queryIdentifier();this.log_("Listen on "+s+" for "+a);var t={p:s};r.tag&&(t.q=o.queryObject(),t.t=r.tag),t.h=r.hashFn(),this.sendRequest("q",t,function(t){var e=t.d,n=t.s;Ci.warnOnListenWarnings_(e,o),(i.listens.get(s)&&i.listens.get(s).get(a))===r&&(i.log_("listen response",t),"ok"!==n&&i.removeListen_(s,a),r.onComplete&&r.onComplete(n,e))})},Ci.warnOnListenWarnings_=function(t,e){t&&"object"==typeof t&&O(t,"w")&&(t=x(t,"w"),Array.isArray(t)&&~t.indexOf("no_index")&&(t='".indexOn": "'+e.getQueryParams().getIndex().toString()+'"',e=e.path.toString(),ct("Using an unspecified index. Your data will be downloaded and filtered on the client. Consider adding "+t+" at "+e+" to your security rules for better performance.")))},Ci.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)},Ci.prototype.reduceReconnectDelayIfAdminCredential_=function(t){(t&&40===t.length||function(t){t=D(t).claims;return"object"==typeof t&&!0===t.admin}(t))&&(this.log_("Admin auth credential detected.  Reducing max reconnect time."),this.maxReconnectDelay_=3e4)},Ci.prototype.tryAuth=function(){var n,t,e,r=this;this.connected_&&this.authToken_&&(t=function(t){t=D(t).claims;return!!t&&"object"==typeof t&&t.hasOwnProperty("iat")}(n=this.authToken_)?"auth":"gauth",e={cred:n},null===this.authOverride_?e.noauth=!0:"object"==typeof this.authOverride_&&(e.authvar=this.authOverride_),this.sendRequest(t,e,function(t){var e=t.s,t=t.d||"error";r.authToken_===n&&("ok"===e?r.invalidAuthTokenCount_=0:r.onAuthRevoked_(e,t))}))},Ci.prototype.unlisten=function(t,e){var n=t.path.toString(),r=t.queryIdentifier();this.log_("Unlisten called for "+n+" "+r),y(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)},Ci.prototype.sendUnlisten_=function(t,e,n,r){this.log_("Unlisten on "+t+" for "+e);t={p:t};r&&(t.q=n,t.t=r),this.sendRequest("n",t)},Ci.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})},Ci.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})},Ci.prototype.onDisconnectCancel=function(t,e){this.connected_?this.sendOnDisconnect_("oc",t,null,e):this.onDisconnectRequestQueue_.push({pathString:t,action:"oc",data:null,onComplete:e})},Ci.prototype.sendOnDisconnect_=function(t,e,n,r){n={p:e,d:n};this.log_("onDisconnect "+t,n),this.sendRequest(t,n,function(t){r&&setTimeout(function(){r(t.s,t.d)},Math.floor(0))})},Ci.prototype.put=function(t,e,n,r){this.putInternal("p",t,e,n,r)},Ci.prototype.merge=function(t,e,n,r){this.putInternal("m",t,e,n,r)},Ci.prototype.putInternal=function(t,e,n,r,i){n={p:e,d:n};void 0!==i&&(n.h=i),this.outstandingPuts_.push({action:t,request:n,onComplete:r}),this.outstandingPutCount_++;r=this.outstandingPuts_.length-1;this.connected_?this.sendPut_(r):this.log_("Buffering put: "+e)},Ci.prototype.sendPut_=function(e){var n=this,r=this.outstandingPuts_[e].action,t=this.outstandingPuts_[e].request,i=this.outstandingPuts_[e].onComplete;this.outstandingPuts_[e].queued=this.connected_,this.sendRequest(r,t,function(t){n.log_(r+" response",t),delete n.outstandingPuts_[e],n.outstandingPutCount_--,0===n.outstandingPutCount_&&(n.outstandingPuts_=[]),i&&i(t.s,t.d)})},Ci.prototype.reportStats=function(t){var e=this;this.connected_&&(t={c:t},this.log_("reportStats",t),this.sendRequest("s",t,function(t){"ok"!==t.s&&(t=t.d,e.log_("reportStats","Error sending stats: "+t))}))},Ci.prototype.onDataMessage_=function(t){if("r"in t){this.log_("from server: "+P(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)}},Ci.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):lt("Unrecognized action received from server: "+P(t)+"\nAre you using the latest client?")},Ci.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)},Ci.prototype.scheduleConnect_=function(t){var e=this;y(!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))},Ci.prototype.onVisible_=function(t){t&&!this.visible_&&this.reconnectDelay_===this.maxReconnectDelay_&&(this.log_("Window became visible.  Reducing delay."),this.reconnectDelay_=gi,this.realtime_||this.scheduleConnect_(0)),this.visible_=t},Ci.prototype.onOnline_=function(t){t?(this.log_("Browser went online."),this.reconnectDelay_=gi,this.realtime_||this.scheduleConnect_(0)):(this.log_("Browser went offline.  Killing connection."),this.realtime_&&this.realtime_.close())},Ci.prototype.onRealtimeDisconnect_=function(){var t;this.log_("data client disconnected"),this.connected_=!1,this.realtime_=null,this.cancelSentTransactions_(),this.requestCBHash_={},this.shouldReconnect_()&&(this.visible_?this.lastConnectionEstablishedTime_&&(3e4<(new Date).getTime()-this.lastConnectionEstablishedTime_&&(this.reconnectDelay_=gi),this.lastConnectionEstablishedTime_=null):(this.log_("Window isn't visible.  Delaying reconnect."),this.reconnectDelay_=this.maxReconnectDelay_,this.lastConnectionAttemptTime_=(new Date).getTime()),t=(new Date).getTime()-this.lastConnectionAttemptTime_,t=Math.max(0,this.reconnectDelay_-t),t=Math.random()*t,this.log_("Trying to reconnect in "+t+"ms"),this.scheduleConnect_(t),this.reconnectDelay_=Math.min(this.maxReconnectDelay_,1.3*this.reconnectDelay_)),this.onConnectStatus_(!1)},Ci.prototype.establishConnection_=function(){var e,n,r,i,o,s,a,h,l,t,u=this;this.shouldReconnect_()&&(this.log_("Making a connection attempt"),this.lastConnectionAttemptTime_=(new Date).getTime(),this.lastConnectionEstablishedTime_=null,e=this.onDataMessage_.bind(this),n=this.onReady_.bind(this),r=this.onRealtimeDisconnect_.bind(this),i=this.id+":"+Ci.nextConnectionId_++,s=(o=this).lastSessionId,a=!1,h=null,l=function(){h?h.close():(a=!0,r())},this.realtime_={close:l,sendRequest:function(t){y(h,"sendRequest call when we're not connected not allowed."),h.sendRequest(t)}},t=this.forceTokenRefresh_,this.forceTokenRefresh_=!1,this.authTokenProvider_.getToken(t).then(function(t){a?Tt("getToken() completed but was canceled"):(Tt("getToken() completed. Creating connection."),o.authToken_=t&&t.accessToken,h=new di(i,o.repoInfo_,o.applicationId_,e,n,r,function(t){ct(t+" ("+o.repoInfo_.toString()+")"),o.interrupt("server_kill")},s))}).then(null,function(t){o.log_("Failed to get token: "+t),a||(u.repoInfo_.nodeAdmin&&ct(t),l())}))},Ci.prototype.interrupt=function(t){Tt("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_())},Ci.prototype.resume=function(t){Tt("Resuming connection for reason: "+t),delete this.interruptReasons_[t],k(this.interruptReasons_)&&(this.reconnectDelay_=gi,this.realtime_||this.scheduleConnect_(0))},Ci.prototype.handleTimestamp_=function(t){t-=(new Date).getTime();this.onServerInfoUpdate_({serverTimeOffset:t})},Ci.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_=[])},Ci.prototype.onListenRevoked_=function(t,e){e=e?e.map(function(t){return Dt(t)}).join("$"):"default",e=this.removeListen_(t,e);e&&e.onComplete&&e.onComplete("permission_denied")},Ci.prototype.removeListen_=function(t,e){var n,r=new Mt(t).toString();return this.listens.has(r)?(n=(t=this.listens.get(r)).get(e),t.delete(e),0===t.size&&this.listens.delete(r)):n=void 0,n},Ci.prototype.onAuthRevoked_=function(t,e){Tt("Auth token revoked: "+t+"/"+e),this.authToken_=null,this.forceTokenRefresh_=!0,this.realtime_.close(),"invalid_token"!==t&&"permission_denied"!==t||(this.invalidAuthTokenCount_++,3<=this.invalidAuthTokenCount_&&(this.reconnectDelay_=3e4,this.authTokenProvider_.notifyForInvalidToken()))},Ci.prototype.onSecurityDebugPacket_=function(t){this.securityDebugCallback_?this.securityDebugCallback_(t):"msg"in t&&console.log("FIREBASE: "+t.msg.replace("\n","\nFIREBASE: "))},Ci.prototype.restoreState_=function(){var e,t,n,r;this.tryAuth();try{for(var i=f(this.listens.values()),o=i.next();!o.done;o=i.next()){var s=o.value;try{for(var a=(n=void 0,f(s.values())),h=a.next();!h.done;h=a.next()){var l=h.value;this.sendListen_(l)}}catch(t){n={error:t}}finally{try{h&&!h.done&&(r=a.return)&&r.call(a)}finally{if(n)throw n.error}}}}catch(t){e={error:t}}finally{try{o&&!o.done&&(t=i.return)&&t.call(i)}finally{if(e)throw e.error}}for(var u=0;u<this.outstandingPuts_.length;u++)this.outstandingPuts_[u]&&this.sendPut_(u);for(;this.onDisconnectRequestQueue_.length;){var c=this.onDisconnectRequestQueue_.shift();this.sendOnDisconnect_(c.action,c.pathString,c.data,c.onComplete)}for(u=0;u<this.outstandingGets_.length;u++)this.outstandingGets_[u]&&this.sendGet_(u)},Ci.prototype.sendConnectStats_=function(){var t={};t["sdk.js."+si.replace(/\./g,"-")]=1,m()?t["framework.cordova"]=1:"object"==typeof navigator&&"ReactNative"===navigator.product&&(t["framework.reactnative"]=1),this.reportStats(t)},Ci.prototype.shouldReconnect_=function(){var t=Xr.getInstance().currentlyOnline();return k(this.interruptReasons_)&&t},Ci.nextPersistentConnectionId_=0,Ci.nextConnectionId_=0,Ci);function Ci(t,e,n,r,i,o,s){var a=yi.call(this)||this;if(a.repoInfo_=t,a.applicationId_=e,a.onDataUpdate_=n,a.onConnectStatus_=r,a.onServerInfoUpdate_=i,a.authTokenProvider_=o,a.authOverride_=s,a.id=Ci.nextPersistentConnectionId_++,a.log_=It("p:"+a.id+":"),a.interruptReasons_={},a.listens=new Map,a.outstandingPuts_=[],a.outstandingGets_=[],a.outstandingPutCount_=0,a.outstandingGetCount_=0,a.onDisconnectRequestQueue_=[],a.connected_=!1,a.reconnectDelay_=gi,a.maxReconnectDelay_=vi,a.securityDebugCallback_=null,a.lastSessionId=null,a.establishConnectionTimer_=null,a.visible_=!1,a.requestCBHash_={},a.requestNumber_=0,a.realtime_=null,a.authToken_=null,a.forceTokenRefresh_=!1,a.invalidAuthTokenCount_=0,a.firstConnection_=!0,a.lastConnectionAttemptTime_=null,a.lastConnectionEstablishedTime_=null,s&&!C())throw new Error("Auth override specified in options, but not supported on non Node.js platforms");return a.scheduleConnect_(0),Kr.getInstance().on("visible",a.onVisible_,a),-1===t.host.indexOf("fblocal")&&Xr.getInstance().on("online",a.onOnline_,a),a}var Ei,wi=(n(bi,Ei=Ce),bi.prototype.reportStats=function(t){throw new Error("Method not implemented.")},bi.getListenId_=function(t,e){return void 0!==e?"tag$"+e:(y(t.getQueryParams().isDefault(),"should have a tag if it's not a default query."),t.path.toString())},bi.prototype.listen=function(t,e,n,r){var i=this,o=t.path.toString();this.log_("Listen called for "+o+" "+t.queryIdentifier());var s=bi.getListenId_(t,n),a={};this.listens_[s]=a;t=t.getQueryParams().toRestQueryStringParameters();this.restRequest_(o+".json",t,function(t,e){404===t&&(t=e=null),null===t&&i.onDataUpdate_(o,e,!1,n),x(i.listens_,s)===a&&r(t?401===t?"permission_denied":"rest_error:"+t:"ok",null)})},bi.prototype.unlisten=function(t,e){e=bi.getListenId_(t,e);delete this.listens_[e]},bi.prototype.get=function(t){var n=this,e=t.getQueryParams().toRestQueryStringParameters(),r=t.path.toString(),i=new g;return this.restRequest_(r+".json",e,function(t,e){404===t&&(t=e=null),null===t?(n.onDataUpdate_(r,e,!1,null),i.resolve(e)):i.reject(new Error(e))}),i.promise},bi.prototype.refreshAuthToken=function(t){},bi.prototype.restRequest_=function(r,i,o){var s=this;void 0===i&&(i={}),i.format="export",this.authTokenProvider_.getToken(!1).then(function(t){t=t&&t.accessToken;t&&(i.auth=t);var e=(s.repoInfo_.secure?"https://":"http://")+s.repoInfo_.host+r+"?ns="+s.repoInfo_.namespace+function(t){for(var n=[],e=0,r=Object.entries(t);e<r.length;e++){var i=r[e];!function(e,t){Array.isArray(t)?t.forEach(function(t){n.push(encodeURIComponent(e)+"="+encodeURIComponent(t))}):n.push(encodeURIComponent(e)+"="+encodeURIComponent(t))}(i[0],i[1])}return n.length?"&"+n.join("&"):""}(i);s.log_("Sending REST request for "+e);var n=new XMLHttpRequest;n.onreadystatechange=function(){if(o&&4===n.readyState){s.log_("REST Response for "+e+" received. status:",n.status,"response:",n.responseText);var t=null;if(200<=n.status&&n.status<300){try{t=R(n.responseText)}catch(t){ct("Failed to parse JSON response for "+e+": "+n.responseText)}o(null,t)}else 401!==n.status&&404!==n.status&&ct("Got unsuccessful REST response for "+e+" Status: "+n.status),o(n.status);o=null}},n.open("GET",e,!0),n.send()})},bi);function bi(t,e,n){var r=Ei.call(this)||this;return r.repoInfo_=t,r.onDataUpdate_=e,r.authTokenProvider_=n,r.log_=It("p:rest:"),r.listens_={},r}var Si="repo_interrupt",Ti=(Ii.prototype.start=function(){var s=this;if(this.stats_=Fr.getCollection(this.repoInfo_),this.forceRestClient_||0<=("object"==typeof window&&window.navigator&&window.navigator.userAgent||"").search(/googlebot|google webmaster tools|bingbot|yahoo! slurp|baiduspider|yandexbot|duckduckbot/i))this.server_=new wi(this.repoInfo_,this.onDataUpdate_.bind(this),this.authTokenProvider_),setTimeout(this.onConnectStatus_.bind(this,!0),0);else{var t=this.app.options.databaseAuthVariableOverride;if(null!=t){if("object"!=typeof t)throw new Error("Only objects are supported for option databaseAuthVariableOverride");try{P(t)}catch(t){throw new Error("Invalid authOverride provided: "+t)}}this.persistentConnection_=new mi(this.repoInfo_,this.app.options.appId,this.onDataUpdate_.bind(this),this.onConnectStatus_.bind(this),this.onServerInfoUpdate_.bind(this),this.authTokenProvider_,t),this.server_=this.persistentConnection_}this.authTokenProvider_.addTokenChangeListener(function(t){s.server_.refreshAuthToken(t)}),this.statsReporter_=Fr.getOrCreateReporter(this.repoInfo_,function(){return new qr(s.stats_,s.server_)}),this.transactionsInit_(),this.infoData_=new Or,this.infoSyncTree_=new Pr({startListening:function(t,e,n,r){var i=[],o=s.infoData_.getNode(t.path);return o.isEmpty()||(i=s.infoSyncTree_.applyServerOverwrite(t.path,o),setTimeout(function(){r("ok")},0)),i},stopListening:function(){}}),this.updateInfo_("connected",!1),this.serverSyncTree_=new Pr({startListening:function(n,t,e,r){return s.server_.listen(n,e,t,function(t,e){e=r(t,e);s.eventQueue_.raiseEventsForChangedPath(n.path,e)}),[]},stopListening:function(t,e){s.server_.unlisten(t,e)}})},Ii.prototype.toString=function(){return(this.repoInfo_.secure?"https://":"http://")+this.repoInfo_.host},Ii.prototype.name=function(){return this.repoInfo_.namespace},Ii.prototype.serverTime=function(){var t=this.infoData_.getNode(new Mt(".info/serverTimeOffset")).val()||0;return(new Date).getTime()+t},Ii.prototype.generateServerValues=function(){return(t=(t={timestamp:this.serverTime()})||{}).timestamp=t.timestamp||(new Date).getTime(),t;var t},Ii.prototype.onDataUpdate_=function(t,e,n,r){this.dataUpdateCount++;var i=new Mt(t);e=this.interceptServerDataCallback_?this.interceptServerDataCallback_(t,e):e;var o,s=[],t=i;0<(s=r?n?(o=A(e,function(t){return hn(t)}),this.serverSyncTree_.applyTaggedQueryMerge(i,o,r)):(o=hn(e),this.serverSyncTree_.applyTaggedQueryOverwrite(i,o,r)):n?(n=A(e,function(t){return hn(t)}),this.serverSyncTree_.applyServerMerge(i,n)):(e=hn(e),this.serverSyncTree_.applyServerOverwrite(i,e))).length&&(t=this.rerunTransactions_(i)),this.eventQueue_.raiseEventsForChangedPath(t,s)},Ii.prototype.interceptServerData_=function(t){this.interceptServerDataCallback_=t},Ii.prototype.onConnectStatus_=function(t){this.updateInfo_("connected",t),!1===t&&this.runOnDisconnectEvents_()},Ii.prototype.onServerInfoUpdate_=function(t){var n=this;Ot(t,function(t,e){n.updateInfo_(t,e)})},Ii.prototype.updateInfo_=function(t,e){t=new Mt("/.info/"+t),e=hn(e);this.infoData_.updateSnapshot(t,e);e=this.infoSyncTree_.applyServerOverwrite(t,e);this.eventQueue_.raiseEventsForChangedPath(t,e)},Ii.prototype.getNextWriteId_=function(){return this.nextWriteId_++},Ii.prototype.getValue=function(n){var r=this;return this.server_.get(n).then(function(t){var e=hn(t),t=r.serverSyncTree_.applyServerOverwrite(n.path,e);return r.eventQueue_.raiseEventsAtPath(n.path,t),Promise.resolve(new fn(e,n.getRef(),n.getQueryParams().getIndex()))},function(t){r.log_("get for query "+P(n)+" falling back to cache after error: "+t);var e=r.serverSyncTree_.calcCompleteEventCache(n.path);return e.isEmpty()?Promise.reject(new Error(t)):Promise.resolve(new fn(e,n.getRef(),n.getQueryParams().getIndex()))})},Ii.prototype.setWithPriority=function(r,t,e,i){var o=this;this.log_("set",{path:r.toString(),value:t,priority:e});var n=this.generateServerValues(),t=hn(t,e),e=this.serverSyncTree_.calcCompleteEventCache(r),n=xn(t,e,n),s=this.getNextWriteId_(),n=this.serverSyncTree_.applyUserOverwrite(r,n,s,!0);this.eventQueue_.queueEvents(n),this.server_.put(r.toString(),t.val(!0),function(t,e){var n="ok"===t;n||ct("set at "+r+" failed: "+t);n=o.serverSyncTree_.ackUserWrite(s,!n);o.eventQueue_.raiseEventsForChangedPath(r,n),o.callOnCompleteCallback(i,t,e)});t=this.abortTransactions_(r);this.rerunTransactions_(t),this.eventQueue_.raiseEventsForChangedPath(t,[])},Ii.prototype.update=function(i,t,o){var s=this;this.log_("update",{path:i.toString(),value:t});var a,e,n=!0,r=this.generateServerValues(),h={};Ot(t,function(t,e){n=!1,h[t]=On(i.child(t),hn(e),s.serverSyncTree_,r)}),n?(Tt("update() called with empty data.  Don't do anything."),this.callOnCompleteCallback(o,"ok")):(a=this.getNextWriteId_(),e=this.serverSyncTree_.applyUserMerge(i,h,a),this.eventQueue_.queueEvents(e),this.server_.merge(i.toString(),t,function(t,e){var n="ok"===t;n||ct("update at "+i+" failed: "+t);var r=s.serverSyncTree_.ackUserWrite(a,!n),n=0<r.length?s.rerunTransactions_(i):i;s.eventQueue_.raiseEventsForChangedPath(n,r),s.callOnCompleteCallback(o,t,e)}),Ot(t,function(t){t=s.abortTransactions_(i.child(t));s.rerunTransactions_(t)}),this.eventQueue_.raiseEventsForChangedPath(i,[]))},Ii.prototype.runOnDisconnectEvents_=function(){var n=this;this.log_("onDisconnectEvents");var r=this.generateServerValues(),i=new Wn;this.onDisconnect_.forEachTree(Mt.Empty,function(t,e){e=On(t,e,n.serverSyncTree_,r);i.remember(t,e)});var o=[];i.forEachTree(Mt.Empty,function(t,e){o=o.concat(n.serverSyncTree_.applyServerOverwrite(t,e));t=n.abortTransactions_(t);n.rerunTransactions_(t)}),this.onDisconnect_=new Wn,this.eventQueue_.raiseEventsForChangedPath(Mt.Empty,o)},Ii.prototype.onDisconnectCancel=function(n,r){var i=this;this.server_.onDisconnectCancel(n.toString(),function(t,e){"ok"===t&&i.onDisconnect_.forget(n),i.callOnCompleteCallback(r,t,e)})},Ii.prototype.onDisconnectSet=function(n,t,r){var i=this,o=hn(t);this.server_.onDisconnectPut(n.toString(),o.val(!0),function(t,e){"ok"===t&&i.onDisconnect_.remember(n,o),i.callOnCompleteCallback(r,t,e)})},Ii.prototype.onDisconnectSetWithPriority=function(n,t,e,r){var i=this,o=hn(t,e);this.server_.onDisconnectPut(n.toString(),o.val(!0),function(t,e){"ok"===t&&i.onDisconnect_.remember(n,o),i.callOnCompleteCallback(r,t,e)})},Ii.prototype.onDisconnectUpdate=function(n,r,i){var o=this;if(k(r))return Tt("onDisconnect().update() called with empty data.  Don't do anything."),void this.callOnCompleteCallback(i,"ok");this.server_.onDisconnectMerge(n.toString(),r,function(t,e){"ok"===t&&Ot(r,function(t,e){e=hn(e);o.onDisconnect_.remember(n.child(t),e)}),o.callOnCompleteCallback(i,t,e)})},Ii.prototype.addEventCallbackForQuery=function(t,e){e=(".info"===t.path.getFront()?this.infoSyncTree_:this.serverSyncTree_).addEventRegistration(t,e);this.eventQueue_.raiseEventsAtPath(t.path,e)},Ii.prototype.removeEventCallbackForQuery=function(t,e){e=(".info"===t.path.getFront()?this.infoSyncTree_:this.serverSyncTree_).removeEventRegistration(t,e);this.eventQueue_.raiseEventsAtPath(t.path,e)},Ii.prototype.interrupt=function(){this.persistentConnection_&&this.persistentConnection_.interrupt(Si)},Ii.prototype.resume=function(){this.persistentConnection_&&this.persistentConnection_.resume(Si)},Ii.prototype.stats=function(t){var i;void 0===t&&(t=!1),"undefined"!=typeof console&&(t=t?(this.statsListener_||(this.statsListener_=new Mr(this.stats_)),this.statsListener_.get()):this.stats_.get(),i=Object.keys(t).reduce(function(t,e){return Math.max(e.length,t)},0),Ot(t,function(t,e){for(var n=t,r=t.length;r<i+2;r++)n+=" ";console.log(n+e)}))},Ii.prototype.statsIncrementCounter=function(t){this.stats_.incrementCounter(t),this.statsReporter_.includeStat(t)},Ii.prototype.log_=function(){for(var t=[],e=0;e<arguments.length;e++)t[e]=arguments[e];var n="";this.persistentConnection_&&(n=this.persistentConnection_.id+":"),Tt.apply(void 0,s([n],t))},Ii.prototype.callOnCompleteCallback=function(n,r,i){n&&kt(function(){var t,e;"ok"===r?n(null):(e=t=(r||"error").toUpperCase(),i&&(e+=": "+i),(e=new Error(e)).code=t,n(e))})},Object.defineProperty(Ii.prototype,"database",{get:function(){return this.__database||(this.__database=new Ki(this))},enumerable:!1,configurable:!0}),Ii);function Ii(t,e,n,r){this.repoInfo_=t,this.forceRestClient_=e,this.app=n,this.authTokenProvider_=r,this.dataUpdateCount=0,this.statsListener_=null,this.eventQueue_=new Ur,this.nextWriteId_=1,this.interceptServerDataCallback_=null,this.onDisconnect_=new Wn,this.persistentConnection_=null,this.key=this.repoInfo_.toURLString()}var Ni=(Ri.prototype.getStartPost=function(){return this.startPost_},Ri.prototype.getEndPost=function(){return this.endPost_},Ri.prototype.matches=function(t){return this.index_.compare(this.getStartPost(),t)<=0&&this.index_.compare(t,this.getEndPost())<=0},Ri.prototype.updateChild=function(t,e,n,r,i,o){return this.matches(new ge(e,n))||(n=en.EMPTY_NODE),this.indexedFilter_.updateChild(t,e,n,r,i,o)},Ri.prototype.updateFullNode=function(t,e,n){e.isLeafNode()&&(e=en.EMPTY_NODE);var r=(r=e.withIndex(this.index_)).updatePriority(en.EMPTY_NODE),i=this;return e.forEachChild(Fe,function(t,e){i.matches(new ge(t,e))||(r=r.updateImmediateChild(t,en.EMPTY_NODE))}),this.indexedFilter_.updateFullNode(t,r,n)},Ri.prototype.updatePriority=function(t,e){return t},Ri.prototype.filtersNodes=function(){return!0},Ri.prototype.getIndexedFilter=function(){return this.indexedFilter_},Ri.prototype.getIndex=function(){return this.index_},Ri.getStartPost_=function(t){if(t.hasStart()){var e=t.getIndexStartName();return t.getIndex().makePost(t.getIndexStartValue(),e)}return t.getIndex().minPost()},Ri.getEndPost_=function(t){if(t.hasEnd()){var e=t.getIndexEndName();return t.getIndex().makePost(t.getIndexEndValue(),e)}return t.getIndex().maxPost()},Ri);function Ri(t){this.indexedFilter_=new or(t.getIndex()),this.index_=t.getIndex(),this.startPost_=Ri.getStartPost_(t),this.endPost_=Ri.getEndPost_(t)}var Pi=(Di.prototype.updateChild=function(t,e,n,r,i,o){return this.rangedFilter_.matches(new ge(e,n))||(n=en.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)},Di.prototype.updateFullNode=function(t,e,n){var r;if(e.isLeafNode()||e.isEmpty())r=en.EMPTY_NODE.withIndex(this.index_);else if(2*this.limit_<e.numChildren()&&e.isIndexed(this.index_)){r=en.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(en.EMPTY_NODE);var a,h=void 0,l=void 0,u=void 0,i=void 0;u=this.reverse_?(i=r.getReverseIterator(this.index_),h=this.rangedFilter_.getEndPost(),l=this.rangedFilter_.getStartPost(),a=this.index_.getCompare(),function(t,e){return a(e,t)}):(i=r.getIterator(this.index_),h=this.rangedFilter_.getStartPost(),l=this.rangedFilter_.getEndPost(),this.index_.getCompare());for(var o=0,c=!1;i.hasNext();){s=i.getNext();!c&&u(h,s)<=0&&(c=!0),c&&o<this.limit_&&u(s,l)<=0?o++:r=r.updateImmediateChild(s.name,en.EMPTY_NODE)}}return this.rangedFilter_.getIndexedFilter().updateFullNode(t,r,n)},Di.prototype.updatePriority=function(t,e){return t},Di.prototype.filtersNodes=function(){return!0},Di.prototype.getIndexedFilter=function(){return this.rangedFilter_.getIndexedFilter()},Di.prototype.getIndex=function(){return this.index_},Di.prototype.fullLimitUpdateChild_=function(t,e,n,r,i){var o,s;s=this.reverse_?(o=this.index_.getCompare(),function(t,e){return o(e,t)}):this.index_.getCompare();var a=t;y(a.numChildren()===this.limit_,"");var h=new ge(e,n),l=this.reverse_?a.getFirstChild(this.index_):a.getLastChild(this.index_),u=this.rangedFilter_.matches(h);if(a.hasChild(e)){for(var c=a.getImmediateChild(e),p=r.getChildAfterChild(this.index_,l,this.reverse_);null!=p&&(p.name===e||a.hasChild(p.name));)p=r.getChildAfterChild(this.index_,p,this.reverse_);var d=null==p?1:s(p,h);if(u&&!n.isEmpty()&&0<=d)return null!=i&&i.trackChildChange(rr.childChangedChange(e,n,c)),a.updateImmediateChild(e,n);null!=i&&i.trackChildChange(rr.childRemovedChange(e,c));c=a.updateImmediateChild(e,en.EMPTY_NODE);return null!=p&&this.rangedFilter_.matches(p)?(null!=i&&i.trackChildChange(rr.childAddedChange(p.name,p.node)),c.updateImmediateChild(p.name,p.node)):c}return!n.isEmpty()&&u&&0<=s(l,h)?(null!=i&&(i.trackChildChange(rr.childRemovedChange(l.name,l.node)),i.trackChildChange(rr.childAddedChange(e,n))),a.updateImmediateChild(e,n).updateImmediateChild(l.name,en.EMPTY_NODE)):t},Di);function Di(t){this.rangedFilter_=new Ni(t),this.index_=t.getIndex(),this.limit_=t.getLimit(),this.reverse_=!t.isViewFromLeft()}var Oi=(xi.prototype.hasStart=function(){return this.startSet_},xi.prototype.isViewFromLeft=function(){return""===this.viewFrom_?this.startSet_:this.viewFrom_===xi.WIRE_PROTOCOL_CONSTANTS_.VIEW_FROM_LEFT},xi.prototype.getIndexStartValue=function(){return y(this.startSet_,"Only valid if start has been set"),this.indexStartValue_},xi.prototype.getIndexStartName=function(){return y(this.startSet_,"Only valid if start has been set"),this.startNameSet_?this.indexStartName_:Nt},xi.prototype.hasEnd=function(){return this.endSet_},xi.prototype.getIndexEndValue=function(){return y(this.endSet_,"Only valid if end has been set"),this.indexEndValue_},xi.prototype.getIndexEndName=function(){return y(this.endSet_,"Only valid if end has been set"),this.endNameSet_?this.indexEndName_:Rt},xi.prototype.hasLimit=function(){return this.limitSet_},xi.prototype.hasAnchoredLimit=function(){return this.limitSet_&&""!==this.viewFrom_},xi.prototype.getLimit=function(){return y(this.limitSet_,"Only valid if limit has been set"),this.limit_},xi.prototype.getIndex=function(){return this.index_},xi.prototype.copy_=function(){var t=new xi;return t.limitSet_=this.limitSet_,t.limit_=this.limit_,t.startSet_=this.startSet_,t.indexStartValue_=this.indexStartValue_,t.startNameSet_=this.startNameSet_,t.indexStartName_=this.indexStartName_,t.endSet_=this.endSet_,t.indexEndValue_=this.indexEndValue_,t.endNameSet_=this.endNameSet_,t.indexEndName_=this.indexEndName_,t.index_=this.index_,t.viewFrom_=this.viewFrom_,t},xi.prototype.limit=function(t){var e=this.copy_();return e.limitSet_=!0,e.limit_=t,e.viewFrom_="",e},xi.prototype.limitToFirst=function(t){var e=this.copy_();return e.limitSet_=!0,e.limit_=t,e.viewFrom_=xi.WIRE_PROTOCOL_CONSTANTS_.VIEW_FROM_LEFT,e},xi.prototype.limitToLast=function(t){var e=this.copy_();return e.limitSet_=!0,e.limit_=t,e.viewFrom_=xi.WIRE_PROTOCOL_CONSTANTS_.VIEW_FROM_RIGHT,e},xi.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},xi.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},xi.prototype.orderBy=function(t){var e=this.copy_();return e.index_=t,e},xi.prototype.getQueryObject=function(){var t,e=xi.WIRE_PROTOCOL_CONSTANTS_,n={};return 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_,""===(t=this.viewFrom_)&&(t=this.isViewFromLeft()?e.VIEW_FROM_LEFT:e.VIEW_FROM_RIGHT),n[e.VIEW_FROM]=t),this.index_!==Fe&&(n[e.INDEX]=this.index_.toString()),n},xi.prototype.loadsAllData=function(){return!(this.startSet_||this.endSet_||this.limitSet_)},xi.prototype.isDefault=function(){return this.loadsAllData()&&this.index_===Fe},xi.prototype.getNodeFilter=function(){return this.loadsAllData()?new or(this.getIndex()):new(this.hasLimit()?Pi:Ni)(this)},xi.prototype.toRestQueryStringParameters=function(){var t,e=xi.REST_QUERY_CONSTANTS_,n={};return this.isDefault()||(t=this.index_===Fe?e.PRIORITY_INDEX:this.index_===cn?e.VALUE_INDEX:this.index_===Te?e.KEY_INDEX:(y(this.index_ instanceof pn,"Unrecognized index type!"),this.index_.toString()),n[e.ORDER_BY]=P(t),this.startSet_&&(n[e.START_AT]=P(this.indexStartValue_),this.startNameSet_&&(n[e.START_AT]+=","+P(this.indexStartName_))),this.endSet_&&(n[e.END_AT]=P(this.indexEndValue_),this.endNameSet_&&(n[e.END_AT]+=","+P(this.indexEndName_))),this.limitSet_&&(this.isViewFromLeft()?n[e.LIMIT_TO_FIRST]=this.limit_:n[e.LIMIT_TO_LAST]=this.limit_)),n},xi.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"},xi.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"},xi.DEFAULT=new xi,xi);function xi(){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_=Fe}var ki,Ai=(n(Fi,ki=Tn),Fi.prototype.getKey=function(){return M("Reference.key",0,0,arguments.length),this.path.isEmpty()?null:this.path.getBack()},Fi.prototype.child=function(t){var e,n,r,i;return M("Reference.child",1,1,arguments.length),"number"==typeof t?t=String(t):t instanceof Mt||(null===this.path.getFront()?(e="Reference.child",i=!(n=1),r=(r=t)&&r.replace(/^\/*\.info(\/|$)/,"/"),ee(e,n,r,i)):ee("Reference.child",1,t,!1)),new Fi(this.repo,this.path.child(t))},Fi.prototype.getParent=function(){M("Reference.parent",0,0,arguments.length);var t=this.path.parent();return null===t?null:new Fi(this.repo,t)},Fi.prototype.getRoot=function(){M("Reference.root",0,0,arguments.length);for(var t=this;null!==t.getParent();)t=t.getParent();return t},Fi.prototype.databaseProp=function(){return this.repo.database},Fi.prototype.set=function(t,e){M("Reference.set",1,2,arguments.length),ne("Reference.set",this.path),Xt("Reference.set",1,t,this.path,!1),q("Reference.set",2,e,!0);var n=new g;return this.repo.setWithPriority(this.path,t,null,n.wrapCallback(e)),n.promise},Fi.prototype.update=function(t,e){if(M("Reference.update",1,2,arguments.length),ne("Reference.update",this.path),Array.isArray(t)){for(var n={},r=0;r<t.length;++r)n[""+r]=t[r];t=n,ct("Passing an Array to Firebase.update() is deprecated. 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use app.database().");return ki.call(this,t,e,Oi.DEFAULT,!1)||this}Tn.__referenceConstructor=Ai,Er.__referenceConstructor=Ai;var Li,Mi=function(){this.children={},this.childCount=0,this.value=null},Wi=(qi.prototype.subTree=function(t){for(var e=t instanceof Mt?t:new Mt(t),n=this,r=e.getFront();null!==r;)n=new qi(r,n,x(n.node_.children,r)||new Mi),r=(e=e.popFront()).getFront();return n},qi.prototype.getValue=function(){return this.node_.value},qi.prototype.setValue=function(t){y(void 0!==t,"Cannot set value to undefined"),this.node_.value=t,this.updateParents_()},qi.prototype.clear=function(){this.node_.value=null,this.node_.children={},this.node_.childCount=0,this.updateParents_()},qi.prototype.hasChildren=function(){return 0<this.node_.childCount},qi.prototype.isEmpty=function(){return null===this.getValue()&&!this.hasChildren()},qi.prototype.forEachChild=function(n){var r=this;Ot(this.node_.children,function(t,e){n(new qi(t,r,e))})},qi.prototype.forEachDescendant=function(e,t,n){t&&!n&&e(this),this.forEachChild(function(t){t.forEachDescendant(e,!0,n)}),t&&n&&e(this)},qi.prototype.forEachAncestor=function(t,e){for(var n=e?this:this.parent();null!==n;){if(t(n))return!0;n=n.parent()}return!1},qi.prototype.forEachImmediateDescendantWithValue=function(e){this.forEachChild(function(t){null!==t.getValue()?e(t):t.forEachImmediateDescendantWithValue(e)})},qi.prototype.path=function(){return new Mt(null===this.parent_?this.name_:this.parent_.path()+"/"+this.name_)},qi.prototype.name=function(){return this.name_},qi.prototype.parent=function(){return this.parent_},qi.prototype.updateParents_=function(){null!==this.parent_&&this.parent_.updateChild_(this.name_,this)},qi.prototype.updateChild_=function(t,e){var n=e.isEmpty(),r=O(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_())},qi);function qi(t,e,n){void 0===t&&(t=""),void 0===e&&(e=null),void 0===n&&(n=new Mi),this.name_=t,this.parent_=e,this.node_=n}(Ce=Li=Li||{})[Ce.RUN=0]="RUN",Ce[Ce.SENT=1]="SENT",Ce[Ce.COMPLETED=2]="COMPLETED",Ce[Ce.SENT_NEEDS_ABORT=3]="SENT_NEEDS_ABORT",Ce[Ce.NEEDS_ABORT=4]="NEEDS_ABORT",Ti.MAX_TRANSACTION_RETRIES_=25,Ti.prototype.transactionsInit_=function(){this.transactionQueueTree_=new Wi},Ti.prototype.startTransaction=function(t,e,n,r){this.log_("transaction on "+t);function i(){}var o=new Ai(this,t);o.on("value",i);var s={path:t,update:e,onComplete:n,status:null,order:Et(),applyLocally:r,retryCount:0,unwatcher:function(){o.off("value",i)},abortReason:null,currentWriteId:null,currentInputSnapshot:null,currentOutputSnapshotRaw:null,currentOutputSnapshotResolved:null},e=this.getLatestState_(t);s.currentInputSnapshot=e;var a,n=s.update(e.val());void 0===n?(s.unwatcher(),s.currentOutputSnapshotRaw=null,s.currentOutputSnapshotResolved=null,s.onComplete&&(a=new fn(s.currentInputSnapshot,new Ai(this,s.path),Fe),s.onComplete(null,!1,a))):(he("transaction failed: Data returned ",n,s.path),s.status=Li.RUN,(a=(r=this.transactionQueueTree_.subTree(t)).getValue()||[]).push(s),r.setValue(a),r=void 0,"object"==typeof n&&null!==n&&O(n,".priority")?(r=x(n,".priority"),y(Gt(r),"Invalid priority returned by transaction. Priority must be a valid string, finite number, server value, or null.")):r=(this.serverSyncTree_.calcCompleteEventCache(t)||en.EMPTY_NODE).getPriority().val(),a=this.generateServerValues(),r=hn(n,r),a=xn(r,e,a),s.currentOutputSnapshotRaw=r,s.currentOutputSnapshotResolved=a,s.currentWriteId=this.getNextWriteId_(),s=this.serverSyncTree_.applyUserOverwrite(t,a,s.currentWriteId,s.applyLocally),this.eventQueue_.raiseEventsForChangedPath(t,s),this.sendReadyTransactions_())},Ti.prototype.getLatestState_=function(t,e){return this.serverSyncTree_.calcCompleteEventCache(t,e)||en.EMPTY_NODE},Ti.prototype.sendReadyTransactions_=function(t){var e,n=this;void 0===t&&(t=this.transactionQueueTree_),t||this.pruneCompletedTransactionsBelowNode_(t),null!==t.getValue()?(e=this.buildTransactionQueue_(t),y(0<e.length,"Sending zero length transaction queue"),e.every(function(t){return t.status===Li.RUN})&&this.sendTransactionQueue_(t.path(),e)):t.hasChildren()&&t.forEachChild(function(t){n.sendReadyTransactions_(t)})},Ti.prototype.sendTransactionQueue_=function(s,a){for(var h=this,t=a.map(function(t){return t.currentWriteId}),e=this.getLatestState_(s,t),n=e,t=e.hash(),r=0;r<a.length;r++){var i=a[r];y(i.status===Li.RUN,"tryToSendTransactionQueue_: items in queue should all be run."),i.status=Li.SENT,i.retryCount++;var o=Mt.relativePath(s,i.path),n=n.updateChild(o,i.currentOutputSnapshotRaw)}var e=n.val(!0),l=s;this.server_.put(l.toString(),e,function(t){h.log_("transaction put response",{path:l.toString(),status:t});var e=[];if("ok"===t){for(var n,r,i=[],o=0;o<a.length;o++){a[o].status=Li.COMPLETED,e=e.concat(h.serverSyncTree_.ackUserWrite(a[o].currentWriteId)),a[o].onComplete&&(n=a[o].currentOutputSnapshotResolved,r=new Ai(h,a[o].path),r=new fn(n,r,Fe),i.push(a[o].onComplete.bind(null,null,!0,r))),a[o].unwatcher()}h.pruneCompletedTransactionsBelowNode_(h.transactionQueueTree_.subTree(s)),h.sendReadyTransactions_(),h.eventQueue_.raiseEventsForChangedPath(s,e);for(o=0;o<i.length;o++)kt(i[o])}else{if("datastale"===t)for(o=0;o<a.length;o++)a[o].status===Li.SENT_NEEDS_ABORT?a[o].status=Li.NEEDS_ABORT:a[o].status=Li.RUN;else{ct("transaction at "+l.toString()+" failed: "+t);for(o=0;o<a.length;o++)a[o].status=Li.NEEDS_ABORT,a[o].abortReason=t}h.rerunTransactions_(s)}},t)},Ti.prototype.rerunTransactions_=function(t){var e=this.getAncestorTransactionNode_(t),t=e.path(),e=this.buildTransactionQueue_(e);return this.rerunTransactionQueue_(e,t),t},Ti.prototype.rerunTransactionQueue_=function(t,e){if(0!==t.length){for(var n=[],r=[],i=t.filter(function(t){return t.status===Li.RUN}).map(function(t){return t.currentWriteId}),o=0;o<t.length;o++){var s,a,h,l=t[o],u=Mt.relativePath(e,l.path),c=!1,p=void 0;y(null!==u,"rerunTransactionsUnderNode_: relativePath should not be null."),l.status===Li.NEEDS_ABORT?(c=!0,p=l.abortReason,r=r.concat(this.serverSyncTree_.ackUserWrite(l.currentWriteId,!0))):l.status===Li.RUN&&(r=l.retryCount>=Ti.MAX_TRANSACTION_RETRIES_?(c=!0,p="maxretry",r.concat(this.serverSyncTree_.ackUserWrite(l.currentWriteId,!0))):(s=this.getLatestState_(l.path,i),l.currentInputSnapshot=s,void 0!==(h=t[o].update(s.val()))?(he("transaction failed: Data returned ",h,l.path),a=hn(h),"object"==typeof h&&null!=h&&O(h,".priority")||(a=a.updatePriority(s.getPriority())),u=l.currentWriteId,h=this.generateServerValues(),h=xn(a,s,h),l.currentOutputSnapshotRaw=a,l.currentOutputSnapshotResolved=h,l.currentWriteId=this.getNextWriteId_(),i.splice(i.indexOf(u),1),(r=r.concat(this.serverSyncTree_.applyUserOverwrite(l.path,h,l.currentWriteId,l.applyLocally))).concat(this.serverSyncTree_.ackUserWrite(u,!0))):(c=!0,p="nodata",r.concat(this.serverSyncTree_.ackUserWrite(l.currentWriteId,!0))))),this.eventQueue_.raiseEventsForChangedPath(e,r),r=[],c&&(t[o].status=Li.COMPLETED,l=t[o].unwatcher,setTimeout(l,Math.floor(0)),t[o].onComplete&&("nodata"===p?(c=new Ai(this,t[o].path),l=t[o].currentInputSnapshot,c=new fn(l,c,Fe),n.push(t[o].onComplete.bind(null,null,!1,c))):n.push(t[o].onComplete.bind(null,new Error(p),!1,null))))}this.pruneCompletedTransactionsBelowNode_(this.transactionQueueTree_);for(o=0;o<n.length;o++)kt(n[o]);this.sendReadyTransactions_()}},Ti.prototype.getAncestorTransactionNode_=function(t){for(var e=this.transactionQueueTree_,n=t.getFront();null!==n&&null===e.getValue();)e=e.subTree(n),n=(t=t.popFront()).getFront();return e},Ti.prototype.buildTransactionQueue_=function(t){var e=[];return this.aggregateTransactionQueuesForNode_(t,e),e.sort(function(t,e){return t.order-e.order}),e},Ti.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)})},Ti.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!==Li.COMPLETED&&(n[r]=n[i],r++);n.length=r,t.setValue(0<n.length?n:null)}t.forEachChild(function(t){e.pruneCompletedTransactionsBelowNode_(t)})},Ti.prototype.abortTransactions_=function(t){var e=this,n=this.getAncestorTransactionNode_(t).path(),t=this.transactionQueueTree_.subTree(t);return t.forEachAncestor(function(t){e.abortTransactionsOnNode_(t)}),this.abortTransactionsOnNode_(t),t.forEachDescendant(function(t){e.abortTransactionsOnNode_(t)}),n},Ti.prototype.abortTransactionsOnNode_=function(t){var e=t.getValue();if(null!==e){for(var n=[],r=[],i=-1,o=0;o<e.length;o++){e[o].status===Li.SENT_NEEDS_ABORT||(e[o].status===Li.SENT?(y(i===o-1,"All SENT items should be at beginning of queue."),e[i=o].status=Li.SENT_NEEDS_ABORT,e[o].abortReason="set"):(y(e[o].status===Li.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++)kt(n[o])}};var Qi=(Ui.prototype.getToken=function(t){return this.auth_?this.auth_.getToken(t).catch(function(t){return t&&"auth/token-not-initialized"===t.code?(Tt("Got auth/token-not-initialized error.  Treating as null token."),null):Promise.reject(t)}):Promise.resolve(null)},Ui.prototype.addTokenChangeListener=function(e){this.auth_?this.auth_.addAuthTokenListener(e):(setTimeout(function(){return e(null)},0),this.authProvider_.get().then(function(t){return t.addAuthTokenListener(e)}))},Ui.prototype.removeTokenChangeListener=function(e){this.authProvider_.get().then(function(t){return t.removeAuthTokenListener(e)})},Ui.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/.',ct(t)},Ui);function Ui(t,e){var n=this;this.app_=t,this.authProvider_=e,this.auth_=null,this.auth_=e.getImmediate({optional:!0}),this.auth_||e.get().then(function(t){return n.auth_=t})}var Vi=(Hi.prototype.getToken=function(t){return Promise.resolve({accessToken:Hi.EMULATOR_AUTH_TOKEN})},Hi.prototype.addTokenChangeListener=function(t){t(Hi.EMULATOR_AUTH_TOKEN)},Hi.prototype.removeTokenChangeListener=function(t){},Hi.prototype.notifyForInvalidToken=function(){},Hi.EMULATOR_AUTH_TOKEN="owner",Hi);function Hi(){}var ji,Bi=(zi.getInstance=function(){return ji=ji||new zi},zi.prototype.interrupt=function(){var e,t,n,r;try{for(var i=f(Object.keys(this.repos_)),o=i.next();!o.done;o=i.next()){var s=o.value;try{for(var a=(n=void 0,f(Object.keys(this.repos_[s]))),h=a.next();!h.done;h=a.next()){var l=h.value;this.repos_[s][l].interrupt()}}catch(t){n={error:t}}finally{try{h&&!h.done&&(r=a.return)&&r.call(a)}finally{if(n)throw n.error}}}}catch(t){e={error:t}}finally{try{o&&!o.done&&(t=i.return)&&t.call(i)}finally{if(e)throw e.error}}},zi.prototype.resume=function(){var e,t,n,r;try{for(var i=f(Object.keys(this.repos_)),o=i.next();!o.done;o=i.next()){var s=o.value;try{for(var a=(n=void 0,f(Object.keys(this.repos_[s]))),h=a.next();!h.done;h=a.next()){var l=h.value;this.repos_[s][l].resume()}}catch(t){n={error:t}}finally{try{h&&!h.done&&(r=a.return)&&r.call(a)}finally{if(n)throw n.error}}}}catch(t){e={error:t}}finally{try{o&&!o.done&&(t=i.return)&&t.call(i)}finally{if(e)throw e.error}}},zi.prototype.applyEmulatorSettings=function(t,e,n){t.repoInfo_=new jt(e+":"+n,!1,t.repoInfo_.namespace,t.repoInfo_.webSocketOnly,t.repoInfo_.nodeAdmin,t.repoInfo_.persistenceKey,t.repoInfo_.includeNamespaceInQueryParams),t.repoInfo_.nodeAdmin&&(t.authTokenProvider_=new Vi)},zi.prototype.databaseFromApp=function(t,e,n,r){var i=n||t.options.databaseURL;void 0===i&&(t.options.projectId||ut("Can't determine Firebase Database URL. Be sure to include  a Project ID when calling firebase.initializeApp()."),Tt("Using default host for project ",t.options.projectId),i=t.options.projectId+"-default-rtdb.firebaseio.com");var o,s=zt(i,r),a=s.repoInfo,n=void 0;"undefined"!=typeof process&&(n=process.env.FIREBASE_DATABASE_EMULATOR_HOST),n?(o=!0,i="http://"+n+"?ns="+a.namespace,a=(s=zt(i,r)).repoInfo):o=!s.repoInfo.secure;e=r&&o?new Vi:new Qi(t,e);return re("Invalid Firebase Database URL",1,s),s.path.isEmpty()||ut("Database URL must point to the root of a Firebase Database (not including a child path)."),this.createRepo(a,t,e).database},zi.prototype.deleteRepo=function(t){var e=x(this.repos_,t.app.name);e&&x(e,t.key)===t||ut("Database "+t.app.name+"("+t.repoInfo_+") has already been deleted."),t.interrupt(),delete e[t.key]},zi.prototype.createRepo=function(t,e,n){var r=x(this.repos_,e.name);r||(r={},this.repos_[e.name]=r);var i=x(r,t.toURLString());return i&&ut("Database initialized multiple times. Please make sure the format of the database URL matches with each database() call."),i=new Ti(t,this.useRestClient_,e,n),r[t.toURLString()]=i},zi.prototype.forceRestClient=function(t){this.useRestClient_=t},zi);function zi(){this.repos_={},this.useRestClient_=!1}var Ki=(Object.defineProperty(Yi.prototype,"repo_",{get:function(){return this.instanceStarted_||(this.repoInternal_.start(),this.instanceStarted_=!0),this.repoInternal_},enumerable:!1,configurable:!0}),Object.defineProperty(Yi.prototype,"root_",{get:function(){return this.rootInternal_||(this.rootInternal_=new Ai(this.repo_,Mt.Empty)),this.rootInternal_},enumerable:!1,configurable:!0}),Object.defineProperty(Yi.prototype,"app",{get:function(){return this.repo_.app},enumerable:!1,configurable:!0}),Yi.prototype.useEmulator=function(t,e){this.checkDeleted_("useEmulator"),this.instanceStarted_?ut("Cannot call useEmulator() after instance has already been initialized."):Bi.getInstance().applyEmulatorSettings(this.repoInternal_,t,e)},Yi.prototype.ref=function(t){return this.checkDeleted_("ref"),M("database.ref",0,1,arguments.length),t instanceof Ai?this.refFromURL(t.toString()):void 0!==t?this.root_.child(t):this.root_},Yi.prototype.refFromURL=function(t){var e="database.refFromURL";this.checkDeleted_(e),M(e,1,1,arguments.length);var n=zt(t,this.repo_.repoInfo_.nodeAdmin);re(e,1,n);t=n.repoInfo;return t.isCustomHost()||t.host===this.repo_.repoInfo_.host||ut(e+": Host name does not match the current database: (found "+t.host+" but expected "+this.repo_.repoInfo_.host+")"),this.ref(n.path.toString())},Yi.prototype.checkDeleted_=function(t){null===this.repoInternal_&&ut("Cannot call "+t+" on a deleted database.")},Yi.prototype.goOffline=function(){M("database.goOffline",0,0,arguments.length),this.checkDeleted_("goOffline"),this.repo_.interrupt()},Yi.prototype.goOnline=function(){M("database.goOnline",0,0,arguments.length),this.checkDeleted_("goOnline"),this.repo_.resume()},Yi.ServerValue={TIMESTAMP:{".sv":"timestamp"},increment:function(t){return{".sv":{increment:t}}}},Yi);function Yi(t){var e=this;this.repoInternal_=t,this.instanceStarted_=!1,this.INTERNAL={delete:function(){return i(e,void 0,void 0,function(){return o(this,function(t){return this.checkDeleted_("delete"),Bi.getInstance().deleteRepo(this.repo_),this.repoInternal_=null,this.rootInternal_=null,[2]})})}},t instanceof Ti||ut("Don't call new Database() directly - please use firebase.database().")}var Gi=Object.freeze({__proto__:null,forceLongPolling:function(){li.forceDisallow(),ni.forceAllow()},forceWebSockets:function(){ni.forceDisallow()},isWebSocketsAvailable:function(){return li.isAvailable()},setSecurityDebugCallback:function(t,e){t.repo.persistentConnection_.securityDebugCallback_=e},stats:function(t,e){t.repo.stats(e)},statsIncrementCounter:function(t,e){t.repo.statsIncrementCounter(e)},dataUpdateCount:function(t){return t.repo.dataUpdateCount},interceptServerData:function(t,e){return t.repo.interceptServerData_(e)},initStandalone:function(t){var e=t.app,n=t.url,r=t.version,i=t.customAuthImpl,o=t.namespace,t=void 0!==(t=t.nodeAdmin)&&t;return ai(r),(r=new Z("auth-internal",new et("database-standalone"))).setComponent(new X("auth-internal",function(){return i},"PRIVATE")),{instance:Bi.getInstance().databaseFromApp(e,r,n,t),namespace:o}}}),Ce=mi;mi.prototype.simpleListen=function(t,e){this.sendRequest("q",{p:t},e)},mi.prototype.echo=function(t,e){this.sendRequest("echo",{d:t},e)};var Xi,$i=Object.freeze({__proto__:null,DataConnection:Ce,RealTimeConnection:di,hijackHash:function(i){var o=mi.prototype.put;return mi.prototype.put=function(t,e,n,r){void 0!==r&&(r=i()),o.call(this,t,e,n,r)},function(){mi.prototype.put=o}},ConnectionTarget:jt,queryIdentifier:function(t){return t.queryIdentifier()},forceRestClient:function(t){Bi.getInstance().forceRestClient(t)}}),Ji=Ki.ServerValue;ai((Xi=e.default).SDK_VERSION),Xi.INTERNAL.registerComponent(new X("database",function(t,e){var n=t.getProvider("app").getImmediate(),t=t.getProvider("auth-internal");return Bi.getInstance().databaseFromApp(n,t,e)},"PUBLIC").setServiceProps({Reference:Ai,Query:Tn,Database:Ki,DataSnapshot:fn,enableLogging:ht,INTERNAL:Gi,ServerValue:Ji,TEST_ACCESS:$i}).setMultipleInstances(!0)),Xi.registerVersion("@firebase/database","0.8.1")}).apply(this,arguments)}catch(t){throw console.error(t),new Error("Cannot instantiate firebase-database.js - be sure to load firebase-app.js first.")}});
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