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this.isCompleteForChild(e)},t.prototype.isCompleteForChild=function(t){return this.isFullyInitialized()&&!this.filtered_||this.node_.hasChild(t)},t.prototype.getNode=function(){return this.node_},t}(),Ve=function(){function t(t,e){this.eventCache_=t,this.serverCache_=e}return t.prototype.updateEventSnap=function(e,n,r){return new t(new Ue(e,n,r),this.serverCache_)},t.prototype.updateServerSnap=function(e,n,r){return new t(this.eventCache_,new Ue(e,n,r))},t.prototype.getEventCache=function(){return this.eventCache_},t.prototype.getCompleteEventSnap=function(){return this.eventCache_.isFullyInitialized()?this.eventCache_.getNode():null},t.prototype.getServerCache=function(){return this.serverCache_},t.prototype.getCompleteServerSnap=function(){return this.serverCache_.isFullyInitialized()?this.serverCache_.getNode():null},t.Empty=new t(new Ue(fe.EMPTY_NODE,!1,!1),new Ue(fe.EMPTY_NODE,!1,!1)),t}(),He=function(){function t(t,e,n,r,i){this.type=t,this.snapshotNode=e,this.childName=n,this.oldSnap=r,this.prevName=i}return t.valueChange=function(e){return new t(t.VALUE,e)},t.childAddedChange=function(e,n){return new t(t.CHILD_ADDED,n,e)},t.childRemovedChange=function(e,n){return new t(t.CHILD_REMOVED,n,e)},t.childChangedChange=function(e,n,r){return new t(t.CHILD_CHANGED,n,e,r)},t.childMovedChange=function(e,n){return new t(t.CHILD_MOVED,n,e)},t.CHILD_ADDED="child_added",t.CHILD_REMOVED="child_removed",t.CHILD_CHANGED="child_changed",t.CHILD_MOVED="child_moved",t.VALUE="value",t}(),Be=function(){function t(t){this.index_=t}return t.prototype.updateChild=function(t,e,n,r,i,o){s(t.isIndexed(this.index_),"A node must be indexed if only a child is updated");var a=t.getImmediateChild(e);return a.getChild(r).equals(n.getChild(r))&&a.isEmpty()==n.isEmpty()?t:(null!=o&&(n.isEmpty()?t.hasChild(e)?o.trackChildChange(He.childRemovedChange(e,a)):s(t.isLeafNode(),"A child remove without an old child only makes sense on a leaf node"):a.isEmpty()?o.trackChildChange(He.childAddedChange(e,n)):o.trackChildChange(He.childChangedChange(e,n,a))),t.isLeafNode()&&n.isEmpty()?t:t.updateImmediateChild(e,n).withIndex(this.index_))},t.prototype.updateFullNode=function(t,e,n){return null!=n&&(t.isLeafNode()||t.forEachChild(ne,function(t,r){e.hasChild(t)||n.trackChildChange(He.childRemovedChange(t,r))}),e.isLeafNode()||e.forEachChild(ne,function(e,r){if(t.hasChild(e)){var i=t.getImmediateChild(e);i.equals(r)||n.trackChildChange(He.childChangedChange(e,r,i))}else n.trackChildChange(He.childAddedChange(e,r))})),e.withIndex(this.index_)},t.prototype.updatePriority=function(t,e){return t.isEmpty()?fe.EMPTY_NODE:t.updatePriority(e)},t.prototype.filtersNodes=function(){return!1},t.prototype.getIndexedFilter=function(){return this},t.prototype.getIndex=function(){return this.index_},t}(),je=function(){function t(){this.changeMap_={}}return t.prototype.trackChildChange=function(t){var e=t.type,n=t.childName;s(e==He.CHILD_ADDED||e==He.CHILD_CHANGED||e==He.CHILD_REMOVED,"Only child changes supported for tracking"),s(".priority"!==n,"Only non-priority child changes can be tracked.");var r=b(this.changeMap_,n);if(r){var i=r.type;if(e==He.CHILD_ADDED&&i==He.CHILD_REMOVED)this.changeMap_[n]=He.childChangedChange(n,t.snapshotNode,r.snapshotNode);else if(e==He.CHILD_REMOVED&&i==He.CHILD_ADDED)delete this.changeMap_[n];else if(e==He.CHILD_REMOVED&&i==He.CHILD_CHANGED)this.changeMap_[n]=He.childRemovedChange(n,r.oldSnap);else if(e==He.CHILD_CHANGED&&i==He.CHILD_ADDED)this.changeMap_[n]=He.childAddedChange(n,t.snapshotNode);else{if(e!=He.CHILD_CHANGED||i!=He.CHILD_CHANGED)throw a("Illegal combination of changes: "+t+" occurred after "+r);this.changeMap_[n]=He.childChangedChange(n,t.snapshotNode,r.oldSnap)}}else this.changeMap_[n]=t},t.prototype.getChanges=function(){return function(t){var e=[],n=0;for(var r in t)e[n++]=t[r];return e}(this.changeMap_)},t}(),Ke=new(function(){function t(){}return t.prototype.getCompleteChild=function(t){return null},t.prototype.getChildAfterChild=function(t,e,n){return null},t}()),Ye=function(){function t(t,e,n){void 0===n&&(n=null),this.writes_=t,this.viewCache_=e,this.optCompleteServerCache_=n}return t.prototype.getCompleteChild=function(t){var e=this.viewCache_.getEventCache();if(e.isCompleteForChild(t))return e.getNode().getImmediateChild(t);var n=null!=this.optCompleteServerCache_?new Ue(this.optCompleteServerCache_,!0,!1):this.viewCache_.getServerCache();return this.writes_.calcCompleteChild(t,n)},t.prototype.getChildAfterChild=function(t,e,n){var r=null!=this.optCompleteServerCache_?this.optCompleteServerCache_:this.viewCache_.getCompleteServerSnap(),i=this.writes_.calcIndexedSlice(r,e,1,n,t);return 0===i.length?null:i[0]},t}(),ze=function(){return function(t,e){this.viewCache=t,this.changes=e}}(),Ge=function(){function t(t){this.filter_=t}return t.prototype.assertIndexed=function(t){s(t.getEventCache().getNode().isIndexed(this.filter_.getIndex()),"Event snap not indexed"),s(t.getServerCache().getNode().isIndexed(this.filter_.getIndex()),"Server snap not indexed")},t.prototype.applyOperation=function(e,n,r,i){var o,h,u=new je;if(n.type===me.OVERWRITE){var l=n;l.source.fromUser?o=this.applyUserOverwrite_(e,l.path,l.snap,r,i,u):(s(l.source.fromServer,"Unknown source."),h=l.source.tagged||e.getServerCache().isFiltered()&&!l.path.isEmpty(),o=this.applyServerOverwrite_(e,l.path,l.snap,r,i,h,u))}else if(n.type===me.MERGE){var c=n;c.source.fromUser?o=this.applyUserMerge_(e,c.path,c.children,r,i,u):(s(c.source.fromServer,"Unknown source."),h=c.source.tagged||e.getServerCache().isFiltered(),o=this.applyServerMerge_(e,c.path,c.children,r,i,h,u))}else if(n.type===me.ACK_USER_WRITE){var p=n;o=p.revert?this.revertUserWrite_(e,p.path,r,i,u):this.ackUserWrite_(e,p.path,p.affectedTree,r,i,u)}else{if(n.type!==me.LISTEN_COMPLETE)throw a("Unknown operation type: "+n.type);o=this.listenComplete_(e,n.path,r,u)}var d=u.getChanges();return t.maybeAddValueEvent_(e,o,d),new ze(o,d)},t.maybeAddValueEvent_=function(t,e,n){var r=e.getEventCache();if(r.isFullyInitialized()){var i=r.getNode().isLeafNode()||r.getNode().isEmpty(),o=t.getCompleteEventSnap();(n.length>0||!t.getEventCache().isFullyInitialized()||i&&!r.getNode().equals(o)||!r.getNode().getPriority().equals(o.getPriority()))&&n.push(He.valueChange(e.getCompleteEventSnap()))}},t.prototype.generateEventCacheAfterServerEvent_=function(t,e,n,r,i){var o=t.getEventCache();if(null!=n.shadowingWrite(e))return t;var a=void 0,h=void 0;if(e.isEmpty())if(s(t.getServerCache().isFullyInitialized(),"If change path is empty, we must have complete server data"),t.getServerCache().isFiltered()){var u=t.getCompleteServerSnap(),l=u instanceof fe?u:fe.EMPTY_NODE,c=n.calcCompleteEventChildren(l);a=this.filter_.updateFullNode(t.getEventCache().getNode(),c,i)}else{var p=n.calcCompleteEventCache(t.getCompleteServerSnap());a=this.filter_.updateFullNode(t.getEventCache().getNode(),p,i)}else{var d=e.getFront();if(".priority"==d){s(1==e.getLength(),"Can't have a priority with additional path components");var f=o.getNode();h=t.getServerCache().getNode();var _=n.calcEventCacheAfterServerOverwrite(e,f,h);a=null!=_?this.filter_.updatePriority(f,_):o.getNode()}else{var y=e.popFront(),v=void 0;if(o.isCompleteForChild(d)){h=t.getServerCache().getNode();var g=n.calcEventCacheAfterServerOverwrite(e,o.getNode(),h);v=null!=g?o.getNode().getImmediateChild(d).updateChild(y,g):o.getNode().getImmediateChild(d)}else v=n.calcCompleteChild(d,t.getServerCache());a=null!=v?this.filter_.updateChild(o.getNode(),d,v,y,r,i):o.getNode()}}return t.updateEventSnap(a,o.isFullyInitialized()||e.isEmpty(),this.filter_.filtersNodes())},t.prototype.applyServerOverwrite_=function(t,e,n,r,i,o,s){var a,h=t.getServerCache(),u=o?this.filter_:this.filter_.getIndexedFilter();if(e.isEmpty())a=u.updateFullNode(h.getNode(),n,null);else if(u.filtersNodes()&&!h.isFiltered()){var l=h.getNode().updateChild(e,n);a=u.updateFullNode(h.getNode(),l,null)}else{var c=e.getFront();if(!h.isCompleteForPath(e)&&e.getLength()>1)return t;var p=e.popFront(),d=h.getNode().getImmediateChild(c).updateChild(p,n);a=".priority"==c?u.updatePriority(h.getNode(),d):u.updateChild(h.getNode(),c,d,p,Ke,null)}var f=t.updateServerSnap(a,h.isFullyInitialized()||e.isEmpty(),u.filtersNodes()),_=new Ye(r,f,i);return this.generateEventCacheAfterServerEvent_(f,e,r,_,s)},t.prototype.applyUserOverwrite_=function(t,e,n,r,i,o){var s,a,h=t.getEventCache(),u=new Ye(r,t,i);if(e.isEmpty())a=this.filter_.updateFullNode(t.getEventCache().getNode(),n,o),s=t.updateEventSnap(a,!0,this.filter_.filtersNodes());else{var l=e.getFront();if(".priority"===l)a=this.filter_.updatePriority(t.getEventCache().getNode(),n),s=t.updateEventSnap(a,h.isFullyInitialized(),h.isFiltered());else{var c=e.popFront(),p=h.getNode().getImmediateChild(l),d=void 0;if(c.isEmpty())d=n;else{var f=u.getCompleteChild(l);d=null!=f?".priority"===c.getBack()&&f.getChild(c.parent()).isEmpty()?f:f.updateChild(c,n):fe.EMPTY_NODE}if(p.equals(d))s=t;else{var _=this.filter_.updateChild(h.getNode(),l,d,c,u,o);s=t.updateEventSnap(_,h.isFullyInitialized(),this.filter_.filtersNodes())}}}return s},t.cacheHasChild_=function(t,e){return t.getEventCache().isCompleteForChild(e)},t.prototype.applyUserMerge_=function(e,n,r,i,o,s){var a=this,h=e;return r.foreach(function(r,u){var l=n.child(r);t.cacheHasChild_(e,l.getFront())&&(h=a.applyUserOverwrite_(h,l,u,i,o,s))}),r.foreach(function(r,u){var l=n.child(r);t.cacheHasChild_(e,l.getFront())||(h=a.applyUserOverwrite_(h,l,u,i,o,s))}),h},t.prototype.applyMerge_=function(t,e){return e.foreach(function(e,n){t=t.updateChild(e,n)}),t},t.prototype.applyServerMerge_=function(t,e,n,r,i,o,s){var a=this;if(t.getServerCache().getNode().isEmpty()&&!t.getServerCache().isFullyInitialized())return t;var h,u=t;h=e.isEmpty()?n:Me.Empty.setTree(e,n);var l=t.getServerCache().getNode();return h.children.inorderTraversal(function(e,n){if(l.hasChild(e)){var h=t.getServerCache().getNode().getImmediateChild(e),c=a.applyMerge_(h,n);u=a.applyServerOverwrite_(u,new mt(e),c,r,i,o,s)}}),h.children.inorderTraversal(function(e,n){var h=!t.getServerCache().isCompleteForChild(e)&&null==n.value;if(!l.hasChild(e)&&!h){var c=t.getServerCache().getNode().getImmediateChild(e),p=a.applyMerge_(c,n);u=a.applyServerOverwrite_(u,new mt(e),p,r,i,o,s)}}),u},t.prototype.ackUserWrite_=function(t,e,n,r,i,o){if(null!=r.shadowingWrite(e))return t;var s=t.getServerCache().isFiltered(),a=t.getServerCache();if(null!=n.value){if(e.isEmpty()&&a.isFullyInitialized()||a.isCompleteForPath(e))return this.applyServerOverwrite_(t,e,a.getNode().getChild(e),r,i,s,o);if(e.isEmpty()){var h=Me.Empty;return a.getNode().forEachChild(Yt,function(t,e){h=h.set(new mt(t),e)}),this.applyServerMerge_(t,e,h,r,i,s,o)}return t}var u=Me.Empty;return n.foreach(function(t,n){var r=e.child(t);a.isCompleteForPath(r)&&(u=u.set(t,a.getNode().getChild(r)))}),this.applyServerMerge_(t,e,u,r,i,s,o)},t.prototype.listenComplete_=function(t,e,n,r){var i=t.getServerCache(),o=t.updateServerSnap(i.getNode(),i.isFullyInitialized()||e.isEmpty(),i.isFiltered());return this.generateEventCacheAfterServerEvent_(o,e,n,Ke,r)},t.prototype.revertUserWrite_=function(t,e,n,r,i){var o;if(null!=n.shadowingWrite(e))return t;var a=new Ye(n,t,r),h=t.getEventCache().getNode(),u=void 0;if(e.isEmpty()||".priority"===e.getFront()){var l=void 0;if(t.getServerCache().isFullyInitialized())l=n.calcCompleteEventCache(t.getCompleteServerSnap());else{var c=t.getServerCache().getNode();s(c instanceof fe,"serverChildren would be complete if leaf node"),l=n.calcCompleteEventChildren(c)}l=l,u=this.filter_.updateFullNode(h,l,i)}else{var p=e.getFront(),d=n.calcCompleteChild(p,t.getServerCache());null==d&&t.getServerCache().isCompleteForChild(p)&&(d=h.getImmediateChild(p)),(u=null!=d?this.filter_.updateChild(h,p,d,e.popFront(),a,i):t.getEventCache().getNode().hasChild(p)?this.filter_.updateChild(h,p,fe.EMPTY_NODE,e.popFront(),a,i):h).isEmpty()&&t.getServerCache().isFullyInitialized()&&(o=n.calcCompleteEventCache(t.getCompleteServerSnap())).isLeafNode()&&(u=this.filter_.updateFullNode(u,o,i))}return o=t.getServerCache().isFullyInitialized()||null!=n.shadowingWrite(mt.Empty),t.updateEventSnap(u,o,this.filter_.filtersNodes())},t}(),Xe=function(){function t(t){this.query_=t,this.index_=this.query_.getQueryParams().getIndex()}return t.prototype.generateEventsForChanges=function(t,e,n){var r=this,i=[],o=[];return t.forEach(function(t){t.type===He.CHILD_CHANGED&&r.index_.indexedValueChanged(t.oldSnap,t.snapshotNode)&&o.push(He.childMovedChange(t.childName,t.snapshotNode))}),this.generateEventsForType_(i,He.CHILD_REMOVED,t,n,e),this.generateEventsForType_(i,He.CHILD_ADDED,t,n,e),this.generateEventsForType_(i,He.CHILD_MOVED,o,n,e),this.generateEventsForType_(i,He.CHILD_CHANGED,t,n,e),this.generateEventsForType_(i,He.VALUE,t,n,e),i},t.prototype.generateEventsForType_=function(t,e,n,r,i){var o=this,s=n.filter(function(t){return t.type===e});s.sort(this.compareChanges_.bind(this)),s.forEach(function(e){var n=o.materializeSingleChange_(e,i);r.forEach(function(r){r.respondsTo(e.type)&&t.push(r.createEvent(n,o.query_))})})},t.prototype.materializeSingleChange_=function(t,e){return"value"===t.type||"child_removed"===t.type?t:(t.prevName=e.getPredecessorChildName(t.childName,t.snapshotNode,this.index_),t)},t.prototype.compareChanges_=function(t,e){if(null==t.childName||null==e.childName)throw a("Should only compare child_ events.");var n=new Bt(t.childName,t.snapshotNode),r=new Bt(e.childName,e.snapshotNode);return this.index_.compare(n,r)},t}(),$e=function(){function t(t,e){this.query_=t,this.eventRegistrations_=[];var n=this.query_.getQueryParams(),r=new Be(n.getIndex()),i=n.getNodeFilter();this.processor_=new Ge(i);var o=e.getServerCache(),s=e.getEventCache(),a=r.updateFullNode(fe.EMPTY_NODE,o.getNode(),null),h=i.updateFullNode(fe.EMPTY_NODE,s.getNode(),null),u=new Ue(a,o.isFullyInitialized(),r.filtersNodes()),l=new Ue(h,s.isFullyInitialized(),i.filtersNodes());this.viewCache_=new Ve(l,u),this.eventGenerator_=new Xe(this.query_)}return t.prototype.getQuery=function(){return this.query_},t.prototype.getServerCache=function(){return this.viewCache_.getServerCache().getNode()},t.prototype.getCompleteServerCache=function(t){var e=this.viewCache_.getCompleteServerSnap();return e&&(this.query_.getQueryParams().loadsAllData()||!t.isEmpty()&&!e.getImmediateChild(t.getFront()).isEmpty())?e.getChild(t):null},t.prototype.isEmpty=function(){return 0===this.eventRegistrations_.length},t.prototype.addEventRegistration=function(t){this.eventRegistrations_.push(t)},t.prototype.removeEventRegistration=function(t,e){var n=[];if(e){s(null==t,"A cancel should cancel all event registrations.");var r=this.query_.path;this.eventRegistrations_.forEach(function(t){e=e;var i=t.createCancelEvent(e,r);i&&n.push(i)})}if(t){for(var i=[],o=0;o<this.eventRegistrations_.length;++o){var a=this.eventRegistrations_[o];if(a.matches(t)){if(t.hasAnyCallback()){i=i.concat(this.eventRegistrations_.slice(o+1));break}}else i.push(a)}this.eventRegistrations_=i}else this.eventRegistrations_=[];return n},t.prototype.applyOperation=function(t,e,n){t.type===me.MERGE&&null!==t.source.queryId&&(s(this.viewCache_.getCompleteServerSnap(),"We should always have a full cache before handling merges"),s(this.viewCache_.getCompleteEventSnap(),"Missing event cache, even though we have a server cache"));var r=this.viewCache_,i=this.processor_.applyOperation(r,t,e,n);return this.processor_.assertIndexed(i.viewCache),s(i.viewCache.getServerCache().isFullyInitialized()||!r.getServerCache().isFullyInitialized(),"Once a server snap is complete, it should never go back"),this.viewCache_=i.viewCache,this.generateEventsForChanges_(i.changes,i.viewCache.getEventCache().getNode(),null)},t.prototype.getInitialEvents=function(t){var e=this.viewCache_.getEventCache(),n=[];e.getNode().isLeafNode()||e.getNode().forEachChild(ne,function(t,e){n.push(He.childAddedChange(t,e))});return e.isFullyInitialized()&&n.push(He.valueChange(e.getNode())),this.generateEventsForChanges_(n,e.getNode(),t)},t.prototype.generateEventsForChanges_=function(t,e,n){var r=n?[n]:this.eventRegistrations_;return this.eventGenerator_.generateEventsForChanges(t,e,r)},t}(),Je=function(){function t(){this.views_={}}return Object.defineProperty(t,"__referenceConstructor",{get:function(){return s(xe,"Reference.ts has not been loaded"),xe},set:function(t){s(!xe,"__referenceConstructor has already been defined"),xe=t},enumerable:!0,configurable:!0}),t.prototype.isEmpty=function(){return N(this.views_)},t.prototype.applyOperation=function(t,e,n){var r=t.source.queryId;if(null!==r){var i=b(this.views_,r);return s(null!=i,"SyncTree gave us an op for an invalid query."),i.applyOperation(t,e,n)}var o=[];return S(this.views_,function(r,i){o=o.concat(i.applyOperation(t,e,n))}),o},t.prototype.addEventRegistration=function(t,e,n,r,i){var o=t.queryIdentifier(),s=b(this.views_,o);if(!s){var a=n.calcCompleteEventCache(i?r:null),h=!1;a?h=!0:r instanceof fe?(a=n.calcCompleteEventChildren(r),h=!1):(a=fe.EMPTY_NODE,h=!1);var u=new Ve(new Ue(a,h,!1),new Ue(r,i,!1));s=new $e(t,u),this.views_[o]=s}return s.addEventRegistration(e),s.getInitialEvents(e)},t.prototype.removeEventRegistration=function(e,n,r){var i=e.queryIdentifier(),o=[],s=[],a=this.hasCompleteView();if("default"===i){var h=this;S(this.views_,function(t,e){s=s.concat(e.removeEventRegistration(n,r)),e.isEmpty()&&(delete h.views_[t],e.getQuery().getQueryParams().loadsAllData()||o.push(e.getQuery()))})}else{var u=b(this.views_,i);u&&(s=s.concat(u.removeEventRegistration(n,r)),u.isEmpty()&&(delete this.views_[i],u.getQuery().getQueryParams().loadsAllData()||o.push(u.getQuery())))}return a&&!this.hasCompleteView()&&o.push(new t.__referenceConstructor(e.repo,e.path)),{removed:o,events:s}},t.prototype.getQueryViews=function(){var t=this;return Object.keys(this.views_).map(function(e){return t.views_[e]}).filter(function(t){return!t.getQuery().getQueryParams().loadsAllData()})},t.prototype.getCompleteServerCache=function(t){var e=null;return S(this.views_,function(n,r){e=e||r.getCompleteServerCache(t)}),e},t.prototype.viewForQuery=function(t){if(t.getQueryParams().loadsAllData())return this.getCompleteView();var e=t.queryIdentifier();return b(this.views_,e)},t.prototype.viewExistsForQuery=function(t){return null!=this.viewForQuery(t)},t.prototype.hasCompleteView=function(){return null!=this.getCompleteView()},t.prototype.getCompleteView=function(){var t,e,n;return(t=this.views_,(n=P(t,function(t){return t.getQuery().getQueryParams().loadsAllData()},e))&&t[n])||null},t}(),Ze=function(){function t(t){this.writeTree_=t}return t.prototype.addWrite=function(e,n){if(e.isEmpty())return new t(new Me(n));var r=this.writeTree_.findRootMostValueAndPath(e);if(null!=r){var i=r.path,o=r.value,s=mt.relativePath(i,e);return o=o.updateChild(s,n),new t(this.writeTree_.set(i,o))}var a=new Me(n);return new t(this.writeTree_.setTree(e,a))},t.prototype.addWrites=function(t,e){var n=this;return S(e,function(e,r){n=n.addWrite(t.child(e),r)}),n},t.prototype.removeWrite=function(e){return e.isEmpty()?t.Empty:new t(this.writeTree_.setTree(e,Me.Empty))},t.prototype.hasCompleteWrite=function(t){return null!=this.getCompleteNode(t)},t.prototype.getCompleteNode=function(t){var e=this.writeTree_.findRootMostValueAndPath(t);return null!=e?this.writeTree_.get(e.path).getChild(mt.relativePath(e.path,t)):null},t.prototype.getCompleteChildren=function(){var t=[],e=this.writeTree_.value;return null!=e?e.isLeafNode()||e.forEachChild(ne,function(e,n){t.push(new Bt(e,n))}):this.writeTree_.children.inorderTraversal(function(e,n){null!=n.value&&t.push(new Bt(e,n.value))}),t},t.prototype.childCompoundWrite=function(e){if(e.isEmpty())return this;var n=this.getCompleteNode(e);return new t(null!=n?new Me(n):this.writeTree_.subtree(e))},t.prototype.isEmpty=function(){return this.writeTree_.isEmpty()},t.prototype.apply=function(e){return t.applySubtreeWrite_(mt.Empty,this.writeTree_,e)},t.Empty=new t(new Me(null)),t.applySubtreeWrite_=function(e,n,r){if(null!=n.value)return r.updateChild(e,n.value);var i=null;return n.children.inorderTraversal(function(n,o){".priority"===n?(s(null!==o.value,"Priority writes must always be leaf nodes"),i=o.value):r=t.applySubtreeWrite_(e.child(n),o,r)}),r.getChild(e).isEmpty()||null===i||(r=r.updateChild(e.child(".priority"),i)),r},t}(),tn=function(){function t(){this.visibleWrites_=Ze.Empty,this.allWrites_=[],this.lastWriteId_=-1}return t.prototype.childWrites=function(t){return new en(t,this)},t.prototype.addOverwrite=function(t,e,n,r){s(n>this.lastWriteId_,"Stacking an older write on top of newer ones"),void 0===r&&(r=!0),this.allWrites_.push({path:t,snap:e,writeId:n,visible:r}),r&&(this.visibleWrites_=this.visibleWrites_.addWrite(t,e)),this.lastWriteId_=n},t.prototype.addMerge=function(t,e,n){s(n>this.lastWriteId_,"Stacking an older merge on top of newer ones"),this.allWrites_.push({path:t,children:e,writeId:n,visible:!0}),this.visibleWrites_=this.visibleWrites_.addWrites(t,e),this.lastWriteId_=n},t.prototype.getWrite=function(t){for(var e=0;e<this.allWrites_.length;e++){var n=this.allWrites_[e];if(n.writeId===t)return n}return null},t.prototype.removeWrite=function(t){var e=this,n=this.allWrites_.findIndex(function(e){return e.writeId===t});s(n>=0,"removeWrite called with nonexistent writeId.");var r=this.allWrites_[n];this.allWrites_.splice(n,1);for(var i=r.visible,o=!1,a=this.allWrites_.length-1;i&&a>=0;){var h=this.allWrites_[a];h.visible&&(a>=n&&this.recordContainsPath_(h,r.path)?i=!1:r.path.contains(h.path)&&(o=!0)),a--}if(i){if(o)return this.resetTree_(),!0;if(r.snap)this.visibleWrites_=this.visibleWrites_.removeWrite(r.path);else{var u=r.children;S(u,function(t){e.visibleWrites_=e.visibleWrites_.removeWrite(r.path.child(t))})}return!0}return!1},t.prototype.getCompleteWriteData=function(t){return this.visibleWrites_.getCompleteNode(t)},t.prototype.calcCompleteEventCache=function(e,n,r,i){if(r||i){var o=this.visibleWrites_.childCompoundWrite(e);if(!i&&o.isEmpty())return n;if(i||null!=n||o.hasCompleteWrite(mt.Empty)){var s=t.layerTree_(this.allWrites_,function(t){return(t.visible||i)&&(!r||!~r.indexOf(t.writeId))&&(t.path.contains(e)||e.contains(t.path))},e);u=n||fe.EMPTY_NODE;return s.apply(u)}return null}var a=this.visibleWrites_.getCompleteNode(e);if(null!=a)return a;var h=this.visibleWrites_.childCompoundWrite(e);if(h.isEmpty())return n;if(null!=n||h.hasCompleteWrite(mt.Empty)){var u=n||fe.EMPTY_NODE;return h.apply(u)}return null},t.prototype.calcCompleteEventChildren=function(t,e){var n=fe.EMPTY_NODE,r=this.visibleWrites_.getCompleteNode(t);if(r)return r.isLeafNode()||r.forEachChild(ne,function(t,e){n=n.updateImmediateChild(t,e)}),n;if(e){var i=this.visibleWrites_.childCompoundWrite(t);return e.forEachChild(ne,function(t,e){var r=i.childCompoundWrite(new mt(t)).apply(e);n=n.updateImmediateChild(t,r)}),i.getCompleteChildren().forEach(function(t){n=n.updateImmediateChild(t.name,t.node)}),n}return this.visibleWrites_.childCompoundWrite(t).getCompleteChildren().forEach(function(t){n=n.updateImmediateChild(t.name,t.node)}),n},t.prototype.calcEventCacheAfterServerOverwrite=function(t,e,n,r){s(n||r,"Either existingEventSnap or existingServerSnap must exist");var i=t.child(e);if(this.visibleWrites_.hasCompleteWrite(i))return null;var o=this.visibleWrites_.childCompoundWrite(i);return o.isEmpty()?r.getChild(e):o.apply(r.getChild(e))},t.prototype.calcCompleteChild=function(t,e,n){var r=t.child(e),i=this.visibleWrites_.getCompleteNode(r);return null!=i?i:n.isCompleteForChild(e)?this.visibleWrites_.childCompoundWrite(r).apply(n.getNode().getImmediateChild(e)):null},t.prototype.shadowingWrite=function(t){return this.visibleWrites_.getCompleteNode(t)},t.prototype.calcIndexedSlice=function(t,e,n,r,i,o){var s,a=this.visibleWrites_.childCompoundWrite(t),h=a.getCompleteNode(mt.Empty);if(null!=h)s=h;else{if(null==e)return[];s=a.apply(e)}if((s=s.withIndex(o)).isEmpty()||s.isLeafNode())return[];for(var u=[],l=o.getCompare(),c=i?s.getReverseIteratorFrom(n,o):s.getIteratorFrom(n,o),p=c.getNext();p&&u.length<r;)0!==l(p,n)&&u.push(p),p=c.getNext();return u},t.prototype.recordContainsPath_=function(t,e){return t.snap?t.path.contains(e):!!P(t.children,function(n,r){return t.path.child(r).contains(e)})},t.prototype.resetTree_=function(){this.visibleWrites_=t.layerTree_(this.allWrites_,t.DefaultFilter_,mt.Empty),this.allWrites_.length>0?this.lastWriteId_=this.allWrites_[this.allWrites_.length-1].writeId:this.lastWriteId_=-1},t.DefaultFilter_=function(t){return t.visible},t.layerTree_=function(t,e,n){for(var r=Ze.Empty,i=0;i<t.length;++i){var o=t[i];if(e(o)){var s=o.path,h=void 0;if(o.snap)n.contains(s)?(h=mt.relativePath(n,s),r=r.addWrite(h,o.snap)):s.contains(n)&&(h=mt.relativePath(s,n),r=r.addWrite(mt.Empty,o.snap.getChild(h)));else{if(!o.children)throw a("WriteRecord should have .snap or .children");if(n.contains(s))h=mt.relativePath(n,s),r=r.addWrites(h,o.children);else if(s.contains(n))if((h=mt.relativePath(s,n)).isEmpty())r=r.addWrites(mt.Empty,o.children);else{var u=b(o.children,h.getFront());if(u){var l=u.getChild(h.popFront());r=r.addWrite(mt.Empty,l)}}}}}return r},t}(),en=function(){function t(t,e){this.treePath_=t,this.writeTree_=e}return t.prototype.calcCompleteEventCache=function(t,e,n){return this.writeTree_.calcCompleteEventCache(this.treePath_,t,e,n)},t.prototype.calcCompleteEventChildren=function(t){return this.writeTree_.calcCompleteEventChildren(this.treePath_,t)},t.prototype.calcEventCacheAfterServerOverwrite=function(t,e,n){return this.writeTree_.calcEventCacheAfterServerOverwrite(this.treePath_,t,e,n)},t.prototype.shadowingWrite=function(t){return this.writeTree_.shadowingWrite(this.treePath_.child(t))},t.prototype.calcIndexedSlice=function(t,e,n,r,i){return this.writeTree_.calcIndexedSlice(this.treePath_,t,e,n,r,i)},t.prototype.calcCompleteChild=function(t,e){return this.writeTree_.calcCompleteChild(this.treePath_,t,e)},t.prototype.child=function(e){return new t(this.treePath_.child(e),this.writeTree_)},t}(),nn=function(){function t(t){this.listenProvider_=t,this.syncPointTree_=Me.Empty,this.pendingWriteTree_=new tn,this.tagToQueryMap_={},this.queryToTagMap_={}}return t.prototype.applyUserOverwrite=function(t,e,n,r){return this.pendingWriteTree_.addOverwrite(t,e,n,r),r?this.applyOperationToSyncPoints_(new qe(Fe.User,t,e)):[]},t.prototype.applyUserMerge=function(t,e,n){this.pendingWriteTree_.addMerge(t,e,n);var r=Me.fromObject(e);return this.applyOperationToSyncPoints_(new Qe(Fe.User,t,r))},t.prototype.ackUserWrite=function(t,e){void 0===e&&(e=!1);var n=this.pendingWriteTree_.getWrite(t);if(this.pendingWriteTree_.removeWrite(t)){var r=Me.Empty;return null!=n.snap?r=r.set(mt.Empty,!0):S(n.children,function(t,e){r=r.set(new mt(t),e)}),this.applyOperationToSyncPoints_(new Ae(n.path,r,e))}return[]},t.prototype.applyServerOverwrite=function(t,e){return this.applyOperationToSyncPoints_(new qe(Fe.Server,t,e))},t.prototype.applyServerMerge=function(t,e){var n=Me.fromObject(e);return this.applyOperationToSyncPoints_(new Qe(Fe.Server,t,n))},t.prototype.applyListenComplete=function(t){return this.applyOperationToSyncPoints_(new We(Fe.Server,t))},t.prototype.applyTaggedQueryOverwrite=function(e,n,r){var i=this.queryKeyForTag_(r);if(null!=i){var o=t.parseQueryKey_(i),s=o.path,a=o.queryId,h=mt.relativePath(s,e),u=new qe(Fe.forServerTaggedQuery(a),h,n);return this.applyTaggedOperation_(s,u)}return[]},t.prototype.applyTaggedQueryMerge=function(e,n,r){var i=this.queryKeyForTag_(r);if(i){var o=t.parseQueryKey_(i),s=o.path,a=o.queryId,h=mt.relativePath(s,e),u=Me.fromObject(n),l=new Qe(Fe.forServerTaggedQuery(a),h,u);return this.applyTaggedOperation_(s,l)}return[]},t.prototype.applyTaggedListenComplete=function(e,n){var r=this.queryKeyForTag_(n);if(r){var i=t.parseQueryKey_(r),o=i.path,s=i.queryId,a=mt.relativePath(o,e),h=new We(Fe.forServerTaggedQuery(s),a);return this.applyTaggedOperation_(o,h)}return[]},t.prototype.addEventRegistration=function(e,n){var r=e.path,i=null,o=!1;this.syncPointTree_.foreachOnPath(r,function(t,e){var n=mt.relativePath(t,r);i=i||e.getCompleteServerCache(n),o=o||e.hasCompleteView()});var a,h=this.syncPointTree_.get(r);(h?(o=o||h.hasCompleteView(),i=i||h.getCompleteServerCache(mt.Empty)):(h=new Je,this.syncPointTree_=this.syncPointTree_.set(r,h)),null!=i)?a=!0:(a=!1,i=fe.EMPTY_NODE,this.syncPointTree_.subtree(r).foreachChild(function(t,e){var 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p=this.syncPointTree_.subtree(o);if(!p.isEmpty())for(var d=this.collectDistinctViewsForSubTree_(p),f=0;f<d.length;++f){var _=d[f],y=_.getQuery(),v=this.createListenerForView_(_);this.listenProvider_.startListening(t.queryForListening_(y),this.tagForQuery_(y),v.hashFn,v.onComplete)}}if(!c&&u.length>0&&!r)if(l){this.listenProvider_.stopListening(t.queryForListening_(e),null)}else u.forEach(function(e){var n=i.queryToTagMap_[t.makeQueryKey_(e)];i.listenProvider_.stopListening(t.queryForListening_(e),n)});this.removeTags_(u)}return a},t.prototype.calcCompleteEventCache=function(t,e){var n=this.pendingWriteTree_,r=this.syncPointTree_.findOnPath(t,function(e,n){var r=mt.relativePath(e,t),i=n.getCompleteServerCache(r);if(i)return i});return n.calcCompleteEventCache(t,r,e,!0)},t.prototype.collectDistinctViewsForSubTree_=function(t){return t.fold(function(t,e,n){if(e&&e.hasCompleteView())return[e.getCompleteView()];var r=[];return 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n=t.toString();return this.reporters_[n]||(this.reporters_[n]=e()),this.reporters_[n]},t.collections_={},t.reporters_={},t}(),hn=function(){function t(t){this.collection_=t,this.last_=null}return t.prototype.get=function(){var t=this.collection_.get(),e=T(t);return this.last_&&S(this.last_,function(t,n){e[t]=e[t]-n}),this.last_=t,e},t}(),un=1e4,ln=3e4,cn=function(){function t(t,e){this.server_=e,this.statsToReport_={},this.statsListener_=new hn(t);var n=un+(ln-un)*Math.random();gt(this.reportStats_.bind(this),Math.floor(n))}return t.prototype.includeStat=function(t){this.statsToReport_[t]=!0},t.prototype.reportStats_=function(){var t=this,e=this.statsListener_.get(),n={},r=!1;S(e,function(e,i){i>0&&w(t.statsToReport_,e)&&(n[e]=i,r=!0)}),r&&this.server_.reportStats(n),gt(this.reportStats_.bind(this),Math.floor(2*Math.random()*3e5))},t}(),pn=function(){function t(){this.eventLists_=[],this.recursionDepth_=0}return t.prototype.queueEvents=function(t){for(var e=null,n=0;n<t.length;n++){var r=t[n],i=r.getPath();null===e||i.equals(e.getPath())||(this.eventLists_.push(e),e=null),null===e&&(e=new dn(i)),e.add(r)}e&&this.eventLists_.push(e)},t.prototype.raiseEventsAtPath=function(t,e){this.queueEvents(e),this.raiseQueuedEventsMatchingPredicate_(function(e){return e.equals(t)})},t.prototype.raiseEventsForChangedPath=function(t,e){this.queueEvents(e),this.raiseQueuedEventsMatchingPredicate_(function(e){return e.contains(t)||t.contains(e)})},t.prototype.raiseQueuedEventsMatchingPredicate_=function(t){this.recursionDepth_++;for(var e=!0,n=0;n<this.eventLists_.length;n++){var r=this.eventLists_[n];if(r)t(r.getPath())?(this.eventLists_[n].raise(),this.eventLists_[n]=null):e=!1}e&&(this.eventLists_=[]),this.recursionDepth_--},t}(),dn=function(){function t(t){this.path_=t,this.events_=[]}return t.prototype.add=function(t){this.events_.push(t)},t.prototype.raise=function(){for(var t=0;t<this.events_.length;t++){var e=this.events_[t];if(null!==e){this.events_[t]=null;var n=e.getEventRunner();X&&Z("event: "+e.toString()),yt(n)}}},t.prototype.getPath=function(){return this.path_},t}(),fn=function(){function t(t){this.allowedEvents_=t,this.listeners_={},s(Array.isArray(t)&&t.length>0,"Requires a non-empty array")}return t.prototype.trigger=function(t){for(var e=[],n=1;n<arguments.length;n++)e[n-1]=arguments[n];if(Array.isArray(this.listeners_[t]))for(var r=this.listeners_[t].slice(),i=0;i<r.length;i++)r[i].callback.apply(r[i].context,e)},t.prototype.on=function(t,e,n){this.validateEventType_(t),this.listeners_[t]=this.listeners_[t]||[],this.listeners_[t].push({callback:e,context:n});var r=this.getInitialEvent(t);r&&e.apply(n,r)},t.prototype.off=function(t,e,n){this.validateEventType_(t);for(var r=this.listeners_[t]||[],i=0;i<r.length;i++)if(r[i].callback===e&&(!n||n===r[i].context))return void r.splice(i,1)},t.prototype.validateEventType_=function(t){s(this.allowedEvents_.find(function(e){return e===t}),"Unknown event: "+t)},t}(),_n=function(t){function e(){var e,n,r=t.call(this,["visible"])||this;return"undefined"!=typeof document&&void 0!==document.addEventListener&&(void 0!==document.hidden?(n="visibilitychange",e="hidden"):void 0!==document.mozHidden?(n="mozvisibilitychange",e="mozHidden"):void 0!==document.msHidden?(n="msvisibilitychange",e="msHidden"):void 0!==document.webkitHidden&&(n="webkitvisibilitychange",e="webkitHidden")),r.visible_=!0,n&&document.addEventListener(n,function(){var t=!document[e];t!==r.visible_&&(r.visible_=t,r.trigger("visible",t))},!1),r}return r(e,t),e.getInstance=function(){return new e},e.prototype.getInitialEvent=function(t){return s("visible"===t,"Unknown event type: "+t),[this.visible_]},e}(fn),yn=function(t){function e(){var e=t.call(this,["online"])||this;return e.online_=!0,"undefined"==typeof window||void 0===window.addEventListener||d()||(window.addEventListener("online",function(){e.online_||(e.online_=!0,e.trigger("online",!0))},!1),window.addEventListener("offline",function(){e.online_&&(e.online_=!1,e.trigger("online",!1))},!1)),e}return r(e,t),e.getInstance=function(){return new e},e.prototype.getInitialEvent=function(t){return s("online"===t,"Unknown event type: "+t),[this.online_]},e.prototype.currentlyOnline=function(){return this.online_},e}(fn),vn=function(){function t(t){this.onMessage_=t,this.pendingResponses=[],this.currentResponseNum=0,this.closeAfterResponse=-1,this.onClose=null}return t.prototype.closeAfter=function(t,e){this.closeAfterResponse=t,this.onClose=e,this.closeAfterResponse<this.currentResponseNum&&(this.onClose(),this.onClose=null)},t.prototype.handleResponse=function(t,e){var n=this;this.pendingResponses[t]=e;for(var r=function(){var t=i.pendingResponses[i.currentResponseNum];delete i.pendingResponses[i.currentResponseNum];for(var e=function(e){t[e]&&yt(function(){n.onMessage_(t[e])})},r=0;r<t.length;++r)e(r);if(i.currentResponseNum===i.closeAfterResponse)return i.onClose&&(i.onClose(),i.onClose=null),"break";i.currentResponseNum++},i=this;this.pendingResponses[this.currentResponseNum];){if("break"===r())break}},t}(),gn="pLPCommand",mn="pRTLPCB",Cn=function(){function t(t,e,n,r){this.connId=t,this.repoInfo=e,this.transportSessionId=n,this.lastSessionId=r,this.bytesSent=0,this.bytesReceived=0,this.everConnected_=!1,this.log_=tt(t),this.stats_=an.getCollection(e),this.urlFn=function(t){return e.connectionURL(Et,t)}}return t.prototype.open=function(t,e){var n=this;this.curSegmentNum=0,this.onDisconnect_=e,this.myPacketOrderer=new vn(t),this.isClosed_=!1,this.connectTimeoutTimer_=setTimeout(function(){n.log_("Timed out trying to connect."),n.onClosed_(),n.connectTimeoutTimer_=null},Math.floor(3e4)),function(t){if(f()||"complete"===document.readyState)t();else{var e=!1,n=function(){document.body?e||(e=!0,t()):setTimeout(n,Math.floor(10))};document.addEventListener?(document.addEventListener("DOMContentLoaded",n,!1),window.addEventListener("load",n,!1)):document.attachEvent&&(document.attachEvent("onreadystatechange",function(){"complete"===document.readyState&&n()}),window.attachEvent("onload",n))}}(function(){if(!n.isClosed_){n.scriptTagHolder=new En(function(){for(var t=[],e=0;e<arguments.length;e++)t[e]=arguments[e];var r=t[0],i=t[1],o=t[2];if(n.incrementIncomingBytes_(t),n.scriptTagHolder)if(n.connectTimeoutTimer_&&(clearTimeout(n.connectTimeoutTimer_),n.connectTimeoutTimer_=null),n.everConnected_=!0,"start"==r)n.id=i,n.password=o;else{if("close"!==r)throw new Error("Unrecognized command received: "+r);i?(n.scriptTagHolder.sendNewPolls=!1,n.myPacketOrderer.closeAfter(i,function(){n.onClosed_()})):n.onClosed_()}},function(){for(var t=[],e=0;e<arguments.length;e++)t[e]=arguments[e];var r=t[0],i=t[1];n.incrementIncomingBytes_(t),n.myPacketOrderer.handleResponse(r,i)},function(){n.onClosed_()},n.urlFn);var t={start:"t"};t.ser=Math.floor(1e8*Math.random()),n.scriptTagHolder.uniqueCallbackIdentifier&&(t.cb=n.scriptTagHolder.uniqueCallbackIdentifier),t.v="5",n.transportSessionId&&(t.s=n.transportSessionId),n.lastSessionId&&(t.ls=n.lastSessionId),!f()&&"undefined"!=typeof location&&location.href&&-1!==location.href.indexOf("firebaseio.com")&&(t.r="f");var e=n.urlFn(t);n.log_("Connecting via long-poll to "+e),n.scriptTagHolder.addTag(e,function(){})}})},t.prototype.start=function(){this.scriptTagHolder.startLongPoll(this.id,this.password),this.addDisconnectPingFrame(this.id,this.password)},t.forceAllow=function(){t.forceAllow_=!0},t.forceDisallow=function(){t.forceDisallow_=!0},t.isAvailable=function(){return t.forceAllow_||!t.forceDisallow_&&"undefined"!=typeof document&&null!=document.createElement&&!("object"==typeof window&&window.chrome&&window.chrome.extension&&!/^chrome/.test(window.location.href))&&!("object"==typeof Windows&&"object"==typeof Windows.UI)&&!f()},t.prototype.markConnectionHealthy=function(){},t.prototype.shutdown_=function(){this.isClosed_=!0,this.scriptTagHolder&&(this.scriptTagHolder.close(),this.scriptTagHolder=null),this.myDisconnFrame&&(document.body.removeChild(this.myDisconnFrame),this.myDisconnFrame=null),this.connectTimeoutTimer_&&(clearTimeout(this.connectTimeoutTimer_),this.connectTimeoutTimer_=null)},t.prototype.onClosed_=function(){this.isClosed_||(this.log_("Longpoll is closing itself"),this.shutdown_(),this.onDisconnect_&&(this.onDisconnect_(this.everConnected_),this.onDisconnect_=null))},t.prototype.close=function(){this.isClosed_||(this.log_("Longpoll is being closed."),this.shutdown_())},t.prototype.send=function(t){var e=C(t);this.bytesSent+=e.length,this.stats_.incrementCounter("bytes_sent",e.length);for(var n,r=(n=h(e),u.encodeByteArray(n,!0)),i=ct(r,1840),o=0;o<i.length;o++)this.scriptTagHolder.enqueueSegment(this.curSegmentNum,i.length,i[o]),this.curSegmentNum++},t.prototype.addDisconnectPingFrame=function(t,e){if(!f()){this.myDisconnFrame=document.createElement("iframe");var n={dframe:"t"};n.id=t,n.pw=e,this.myDisconnFrame.src=this.urlFn(n),this.myDisconnFrame.style.display="none",document.body.appendChild(this.myDisconnFrame)}},t.prototype.incrementIncomingBytes_=function(t){var e=C(t).length;this.bytesReceived+=e,this.stats_.incrementCounter("bytes_received",e)},t}(),En=function(){function t(e,n,r,i){if(this.onDisconnect=r,this.urlFn=i,this.outstandingRequests=new Re,this.pendingSegs=[],this.currentSerial=Math.floor(1e8*Math.random()),this.sendNewPolls=!0,f())this.commandCB=e,this.onMessageCB=n;else{this.uniqueCallbackIdentifier=Y(),window[gn+this.uniqueCallbackIdentifier]=e,window[mn+this.uniqueCallbackIdentifier]=n,this.myIFrame=t.createIFrame_();var o="";if(this.myIFrame.src&&"javascript:"===this.myIFrame.src.substr(0,"javascript:".length))o='<script>document.domain="'+document.domain+'";<\/script>';var s="<html><body>"+o+"</body></html>";try{this.myIFrame.doc.open(),this.myIFrame.doc.write(s),this.myIFrame.doc.close()}catch(t){Z("frame writing exception"),t.stack&&Z(t.stack),Z(t)}}}return t.createIFrame_=function(){var t=document.createElement("iframe");if(t.style.display="none",!document.body)throw"Document body has not initialized. Wait to initialize Firebase until after the document is ready.";document.body.appendChild(t);try{t.contentWindow.document||Z("No IE domain setting required")}catch(n){var e=document.domain;t.src="javascript:void((function(){document.open();document.domain='"+e+"';document.close();})())"}return t.contentDocument?t.doc=t.contentDocument:t.contentWindow?t.doc=t.contentWindow.document:t.document&&(t.doc=t.document),t},t.prototype.close=function(){var e=this;if(this.alive=!1,this.myIFrame&&(this.myIFrame.doc.body.innerHTML="",setTimeout(function(){null!==e.myIFrame&&(document.body.removeChild(e.myIFrame),e.myIFrame=null)},Math.floor(0))),f()&&this.myID){var n={disconn:"t"};n.id=this.myID,n.pw=this.myPW;var r=this.urlFn(n);t.nodeRestRequest(r)}var i=this.onDisconnect;i&&(this.onDisconnect=null,i())},t.prototype.startLongPoll=function(t,e){for(this.myID=t,this.myPW=e,this.alive=!0;this.newRequest_(););},t.prototype.newRequest_=function(){if(this.alive&&this.sendNewPolls&&this.outstandingRequests.count()<(this.pendingSegs.length>0?2:1)){this.currentSerial++;var t={};t.id=this.myID,t.pw=this.myPW,t.ser=this.currentSerial;for(var e=this.urlFn(t),n="",r=0;this.pendingSegs.length>0;){if(!(this.pendingSegs[0].d.length+30+n.length<=1870))break;var i=this.pendingSegs.shift();n=n+"&seg"+r+"="+i.seg+"&ts"+r+"="+i.ts+"&d"+r+"="+i.d,r++}return e+=n,this.addLongPollTag_(e,this.currentSerial),!0}return!1},t.prototype.enqueueSegment=function(t,e,n){this.pendingSegs.push({seg:t,ts:e,d:n}),this.alive&&this.newRequest_()},t.prototype.addLongPollTag_=function(t,e){var n=this;this.outstandingRequests.add(e,1);var r=function(){n.outstandingRequests.remove(e),n.newRequest_()},i=setTimeout(r,Math.floor(25e3));this.addTag(t,function(){clearTimeout(i),r()})},t.prototype.addTag=function(t,e){var n=this;f()?this.doNodeLongPoll(t,e):setTimeout(function(){try{if(!n.sendNewPolls)return;var r=n.myIFrame.doc.createElement("script");r.type="text/javascript",r.async=!0,r.src=t,r.onload=r.onreadystatechange=function(){var t=r.readyState;t&&"loaded"!==t&&"complete"!==t||(r.onload=r.onreadystatechange=null,r.parentNode&&r.parentNode.removeChild(r),e())},r.onerror=function(){Z("Long-poll script failed to load: "+t),n.sendNewPolls=!1,n.close()},n.myIFrame.doc.body.appendChild(r)}catch(t){}},Math.floor(1))},t}(),wn=null;"undefined"!=typeof MozWebSocket?wn=MozWebSocket:"undefined"!=typeof WebSocket&&(wn=WebSocket);var bn=function(){function t(e,n,r,i){this.connId=e,this.keepaliveTimer=null,this.frames=null,this.totalFrames=0,this.bytesSent=0,this.bytesReceived=0,this.log_=tt(this.connId),this.stats_=an.getCollection(n),this.connURL=t.connectionURL_(n,r,i)}return t.connectionURL_=function(t,e,n){var r={v:"5"};return!f()&&"undefined"!=typeof location&&location.href&&-1!==location.href.indexOf("firebaseio.com")&&(r.r="f"),e&&(r.s=e),n&&(r.ls=n),t.connectionURL("websocket",r)},t.prototype.open=function(t,n){var r=this;this.onDisconnect=n,this.onMessage=t,this.log_("Websocket connecting to "+this.connURL),this.everConnected_=!1,B.set("previous_websocket_failure",!0);try{if(f()){var i=o.NODE_ADMIN?"AdminNode":"Node",s={headers:{"User-Agent":"Firebase/5/"+e.SDK_VERSION+"/"+process.platform+"/"+i}},a=process.env,h=0==this.connURL.indexOf("wss://")?a.HTTPS_PROXY||a.https_proxy:a.HTTP_PROXY||a.http_proxy;h&&(s.proxy={origin:h}),this.mySock=new wn(this.connURL,[],s)}else this.mySock=new wn(this.connURL)}catch(t){this.log_("Error instantiating WebSocket.");var u=t.message||t.data;return u&&this.log_(u),void this.onClosed_()}this.mySock.onopen=function(){r.log_("Websocket connected."),r.everConnected_=!0},this.mySock.onclose=function(){r.log_("Websocket connection was disconnected."),r.mySock=null,r.onClosed_()},this.mySock.onmessage=function(t){r.handleIncomingFrame(t)},this.mySock.onerror=function(t){r.log_("WebSocket error.  Closing connection.");var e=t.message||t.data;e&&r.log_(e),r.onClosed_()}},t.prototype.start=function(){},t.forceDisallow=function(){t.forceDisallow_=!0},t.isAvailable=function(){var e=!1;if("undefined"!=typeof navigator&&navigator.userAgent){var n=navigator.userAgent.match(/Android ([0-9]{0,}\.[0-9]{0,})/);n&&n.length>1&&parseFloat(n[1])<4.4&&(e=!0)}return!e&&null!==wn&&!t.forceDisallow_},t.previouslyFailed=function(){return B.isInMemoryStorage||!0===B.get("previous_websocket_failure")},t.prototype.markConnectionHealthy=function(){B.remove("previous_websocket_failure")},t.prototype.appendFrame_=function(t){if(this.frames.push(t),this.frames.length==this.totalFrames){var e=this.frames.join("");this.frames=null;var n=m(e);this.onMessage(n)}},t.prototype.handleNewFrameCount_=function(t){this.totalFrames=t,this.frames=[]},t.prototype.extractFrameCount_=function(t){if(s(null===this.frames,"We already have a frame buffer"),t.length<=6){var e=Number(t);if(!isNaN(e))return this.handleNewFrameCount_(e),null}return this.handleNewFrameCount_(1),t},t.prototype.handleIncomingFrame=function(t){if(null!==this.mySock){var e=t.data;if(this.bytesReceived+=e.length,this.stats_.incrementCounter("bytes_received",e.length),this.resetKeepAlive(),null!==this.frames)this.appendFrame_(e);else{var n=this.extractFrameCount_(e);null!==n&&this.appendFrame_(n)}}},t.prototype.send=function(t){this.resetKeepAlive();var e=C(t);this.bytesSent+=e.length,this.stats_.incrementCounter("bytes_sent",e.length);var n=ct(e,16384);n.length>1&&this.sendString_(String(n.length));for(var r=0;r<n.length;r++)this.sendString_(n[r])},t.prototype.shutdown_=function(){this.isClosed_=!0,this.keepaliveTimer&&(clearInterval(this.keepaliveTimer),this.keepaliveTimer=null),this.mySock&&(this.mySock.close(),this.mySock=null)},t.prototype.onClosed_=function(){this.isClosed_||(this.log_("WebSocket is closing itself"),this.shutdown_(),this.onDisconnect&&(this.onDisconnect(this.everConnected_),this.onDisconnect=null))},t.prototype.close=function(){this.isClosed_||(this.log_("WebSocket is being closed"),this.shutdown_())},t.prototype.resetKeepAlive=function(){var t=this;clearInterval(this.keepaliveTimer),this.keepaliveTimer=setInterval(function(){t.mySock&&t.sendString_("0"),t.resetKeepAlive()},Math.floor(45e3))},t.prototype.sendString_=function(t){try{this.mySock.send(t)}catch(t){this.log_("Exception thrown from WebSocket.send():",t.message||t.data,"Closing connection."),setTimeout(this.onClosed_.bind(this),0)}},t.responsesRequiredToBeHealthy=2,t.healthyTimeout=3e4,t}(),Sn=function(){function t(t){this.initTransports_(t)}return Object.defineProperty(t,"ALL_TRANSPORTS",{get:function(){return[Cn,bn]},enumerable:!0,configurable:!0}),t.prototype.initTransports_=function(e){var n=bn&&bn.isAvailable(),r=n&&!bn.previouslyFailed();if(e.webSocketOnly&&(n||rt("wss:// URL used, but browser isn't known to support websockets.  Trying anyway."),r=!0),r)this.transports_=[bn];else{var i=this.transports_=[];pt(t.ALL_TRANSPORTS,function(t,e){e&&e.isAvailable()&&i.push(e)})}},t.prototype.initialTransport=function(){if(this.transports_.length>0)return this.transports_[0];throw new Error("No transports available")},t.prototype.upgradeTransport=function(){return this.transports_.length>1?this.transports_[1]:null},t}(),Tn=function(){function t(t,e,n,r,i,o,s){this.id=t,this.repoInfo_=e,this.onMessage_=n,this.onReady_=r,this.onDisconnect_=i,this.onKill_=o,this.lastSessionId=s,this.connectionCount=0,this.pendingDataMessages=[],this.state_=0,this.log_=tt("c:"+this.id+":"),this.transportManager_=new Sn(e),this.log_("Connection created"),this.start_()}return t.prototype.start_=function(){var t=this,e=this.transportManager_.initialTransport();this.conn_=new e(this.nextTransportId_(),this.repoInfo_,void 0,this.lastSessionId),this.primaryResponsesRequired_=e.responsesRequiredToBeHealthy||0;var n=this.connReceiver_(this.conn_),r=this.disconnReceiver_(this.conn_);this.tx_=this.conn_,this.rx_=this.conn_,this.secondaryConn_=null,this.isHealthy_=!1,setTimeout(function(){t.conn_&&t.conn_.open(n,r)},Math.floor(0));var i=e.healthyTimeout||0;i>0&&(this.healthyTimeout_=gt(function(){t.healthyTimeout_=null,t.isHealthy_||(t.conn_&&t.conn_.bytesReceived>102400?(t.log_("Connection exceeded healthy timeout but has received "+t.conn_.bytesReceived+" bytes.  Marking connection healthy."),t.isHealthy_=!0,t.conn_.markConnectionHealthy()):t.conn_&&t.conn_.bytesSent>10240?t.log_("Connection exceeded healthy timeout but has sent "+t.conn_.bytesSent+" bytes.  Leaving connection alive."):(t.log_("Closing unhealthy connection after timeout."),t.close()))},Math.floor(i)))},t.prototype.nextTransportId_=function(){return"c:"+this.id+":"+this.connectionCount++},t.prototype.disconnReceiver_=function(t){var e=this;return function(n){t===e.conn_?e.onConnectionLost_(n):t===e.secondaryConn_?(e.log_("Secondary connection lost."),e.onSecondaryConnectionLost_()):e.log_("closing an old connection")}},t.prototype.connReceiver_=function(t){var e=this;return function(n){2!=e.state_&&(t===e.rx_?e.onPrimaryMessageReceived_(n):t===e.secondaryConn_?e.onSecondaryMessageReceived_(n):e.log_("message on old connection"))}},t.prototype.sendRequest=function(t){var e={t:"d",d:t};this.sendData_(e)},t.prototype.tryCleanupConnection=function(){this.tx_===this.secondaryConn_&&this.rx_===this.secondaryConn_&&(this.log_("cleaning up and promoting a connection: "+this.secondaryConn_.connId),this.conn_=this.secondaryConn_,this.secondaryConn_=null)},t.prototype.onSecondaryControl_=function(t){if("t"in t){var e=t.t;"a"===e?this.upgradeIfSecondaryHealthy_():"r"===e?(this.log_("Got a reset on secondary, closing it"),this.secondaryConn_.close(),this.tx_!==this.secondaryConn_&&this.rx_!==this.secondaryConn_||this.close()):"o"===e&&(this.log_("got pong on secondary."),this.secondaryResponsesRequired_--,this.upgradeIfSecondaryHealthy_())}},t.prototype.onSecondaryMessageReceived_=function(t){var e=ut("t",t),n=ut("d",t);if("c"==e)this.onSecondaryControl_(n);else{if("d"!=e)throw new Error("Unknown protocol layer: "+e);this.pendingDataMessages.push(n)}},t.prototype.upgradeIfSecondaryHealthy_=function(){this.secondaryResponsesRequired_<=0?(this.log_("Secondary connection is healthy."),this.isHealthy_=!0,this.secondaryConn_.markConnectionHealthy(),this.proceedWithUpgrade_()):(this.log_("sending ping on secondary."),this.secondaryConn_.send({t:"c",d:{t:"p",d:{}}}))},t.prototype.proceedWithUpgrade_=function(){this.secondaryConn_.start(),this.log_("sending client ack on secondary"),this.secondaryConn_.send({t:"c",d:{t:"a",d:{}}}),this.log_("Ending transmission on primary"),this.conn_.send({t:"c",d:{t:"n",d:{}}}),this.tx_=this.secondaryConn_,this.tryCleanupConnection()},t.prototype.onPrimaryMessageReceived_=function(t){var e=ut("t",t),n=ut("d",t);"c"==e?this.onControl_(n):"d"==e&&this.onDataMessage_(n)},t.prototype.onDataMessage_=function(t){this.onPrimaryResponse_(),this.onMessage_(t)},t.prototype.onPrimaryResponse_=function(){this.isHealthy_||(this.primaryResponsesRequired_--,this.primaryResponsesRequired_<=0&&(this.log_("Primary connection is healthy."),this.isHealthy_=!0,this.conn_.markConnectionHealthy()))},t.prototype.onControl_=function(t){var e=ut("t",t);if("d"in t){var n=t.d;if("h"===e)this.onHandshake_(n);else if("n"===e){this.log_("recvd end transmission on primary"),this.rx_=this.secondaryConn_;for(var r=0;r<this.pendingDataMessages.length;++r)this.onDataMessage_(this.pendingDataMessages[r]);this.pendingDataMessages=[],this.tryCleanupConnection()}else"s"===e?this.onConnectionShutdown_(n):"r"===e?this.onReset_(n):"e"===e?et("Server Error: "+n):"o"===e?(this.log_("got pong on primary."),this.onPrimaryResponse_(),this.sendPingOnPrimaryIfNecessary_()):et("Unknown control packet command: "+e)}},t.prototype.onHandshake_=function(t){var e=t.ts,n=t.v,r=t.h;this.sessionId=t.s,this.repoInfo_.updateHost(r),0==this.state_&&(this.conn_.start(),this.onConnectionEstablished_(this.conn_,e),"5"!==n&&rt("Protocol version mismatch detected"),this.tryStartUpgrade_())},t.prototype.tryStartUpgrade_=function(){var t=this.transportManager_.upgradeTransport();t&&this.startUpgrade_(t)},t.prototype.startUpgrade_=function(t){var e=this;this.secondaryConn_=new t(this.nextTransportId_(),this.repoInfo_,this.sessionId),this.secondaryResponsesRequired_=t.responsesRequiredToBeHealthy||0;var n=this.connReceiver_(this.secondaryConn_),r=this.disconnReceiver_(this.secondaryConn_);this.secondaryConn_.open(n,r),gt(function(){e.secondaryConn_&&(e.log_("Timed out trying to upgrade."),e.secondaryConn_.close())},Math.floor(6e4))},t.prototype.onReset_=function(t){this.log_("Reset packet received.  New host: "+t),this.repoInfo_.updateHost(t),1===this.state_?this.close():(this.closeConnections_(),this.start_())},t.prototype.onConnectionEstablished_=function(t,e){var n=this;this.log_("Realtime connection established."),this.conn_=t,this.state_=1,this.onReady_&&(this.onReady_(e,this.sessionId),this.onReady_=null),0===this.primaryResponsesRequired_?(this.log_("Primary connection is healthy."),this.isHealthy_=!0):gt(function(){n.sendPingOnPrimaryIfNecessary_()},Math.floor(5e3))},t.prototype.sendPingOnPrimaryIfNecessary_=function(){this.isHealthy_||1!==this.state_||(this.log_("sending ping on primary."),this.sendData_({t:"c",d:{t:"p",d:{}}}))},t.prototype.onSecondaryConnectionLost_=function(){var t=this.secondaryConn_;this.secondaryConn_=null,this.tx_!==t&&this.rx_!==t||this.close()},t.prototype.onConnectionLost_=function(t){this.conn_=null,t||0!==this.state_?1===this.state_&&this.log_("Realtime connection lost."):(this.log_("Realtime connection failed."),this.repoInfo_.isCacheableHost()&&(B.remove("host:"+this.repoInfo_.host),this.repoInfo_.internalHost=this.repoInfo_.host)),this.close()},t.prototype.onConnectionShutdown_=function(t){this.log_("Connection shutdown command received. Shutting down..."),this.onKill_&&(this.onKill_(t),this.onKill_=null),this.onDisconnect_=null,this.close()},t.prototype.sendData_=function(t){if(1!==this.state_)throw"Connection is not connected";this.tx_.send(t)},t.prototype.close=function(){2!==this.state_&&(this.log_("Closing realtime connection."),this.state_=2,this.closeConnections_(),this.onDisconnect_&&(this.onDisconnect_(),this.onDisconnect_=null))},t.prototype.closeConnections_=function(){this.log_("Shutting down all connections"),this.conn_&&(this.conn_.close(),this.conn_=null),this.secondaryConn_&&(this.secondaryConn_.close(),this.secondaryConn_=null),this.healthyTimeout_&&(clearTimeout(this.healthyTimeout_),this.healthyTimeout_=null)},t}(),Nn=function(){function t(){}return t.prototype.put=function(t,e,n,r){},t.prototype.merge=function(t,e,n,r){},t.prototype.refreshAuthToken=function(t){},t.prototype.onDisconnectPut=function(t,e,n){},t.prototype.onDisconnectMerge=function(t,e,n){},t.prototype.onDisconnectCancel=function(t,e){},t.prototype.reportStats=function(t){},t}(),In=1e3,Rn=3e5,Pn=function(t){function n(e,r,i,o,s,a){var h=t.call(this)||this;if(h.repoInfo_=e,h.onDataUpdate_=r,h.onConnectStatus_=i,h.onServerInfoUpdate_=o,h.authTokenProvider_=s,h.authOverride_=a,h.id=n.nextPersistentConnectionId_++,h.log_=tt("p:"+h.id+":"),h.interruptReasons_={},h.listens_={},h.outstandingPuts_=[],h.outstandingPutCount_=0,h.onDisconnectRequestQueue_=[],h.connected_=!1,h.reconnectDelay_=In,h.maxReconnectDelay_=Rn,h.securityDebugCallback_=null,h.lastSessionId=null,h.establishConnectionTimer_=null,h.visible_=!1,h.requestCBHash_={},h.requestNumber_=0,h.realtime_=null,h.authToken_=null,h.forceTokenRefresh_=!1,h.invalidAuthTokenCount_=0,h.firstConnection_=!0,h.lastConnectionAttemptTime_=null,h.lastConnectionEstablishedTime_=null,a&&!f())throw new Error("Auth override specified in options, but not supported on non Node.js platforms");return h.scheduleConnect_(0),_n.getInstance().on("visible",h.onVisible_,h),-1===e.host.indexOf("fblocal")&&yn.getInstance().on("online",h.onOnline_,h),h}return r(n,t),n.prototype.sendRequest=function(t,e,n){var r=++this.requestNumber_,i={r:r,a:t,b:e};this.log_(C(i)),s(this.connected_,"sendRequest call when we're not connected not allowed."),this.realtime_.sendRequest(i),n&&(this.requestCBHash_[r]=n)},n.prototype.listen=function(t,e,n,r){var i=t.queryIdentifier(),o=t.path.toString();this.log_("Listen called for "+o+" "+i),this.listens_[o]=this.listens_[o]||{},s(t.getQueryParams().isDefault()||!t.getQueryParams().loadsAllData(),"listen() called for non-default but complete query"),s(!this.listens_[o][i],"listen() called twice for same path/queryId.");var a={onComplete:r,hashFn:e,query:t,tag:n};this.listens_[o][i]=a,this.connected_&&this.sendListen_(a)},n.prototype.sendListen_=function(t){var e=this,r=t.query,i=r.path.toString(),o=r.queryIdentifier();this.log_("Listen on "+i+" for "+o);var s={p:i};t.tag&&(s.q=r.queryObject(),s.t=t.tag),s.h=t.hashFn(),this.sendRequest("q",s,function(s){var a=s.d,h=s.s;n.warnOnListenWarnings_(a,r),(e.listens_[i]&&e.listens_[i][o])===t&&(e.log_("listen response",s),"ok"!==h&&e.removeListen_(i,o),t.onComplete&&t.onComplete(h,a))})},n.warnOnListenWarnings_=function(t,e){if(t&&"object"==typeof t&&w(t,"w")){var n=b(t,"w");if(Array.isArray(n)&&~n.indexOf("no_index")){var r='".indexOn": "'+e.getQueryParams().getIndex().toString()+'"',i=e.path.toString();rt("Using an unspecified index. Your data will be downloaded and filtered on the client. Consider adding "+r+" at "+i+" to your security rules for better performance.")}}},n.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)},n.prototype.reduceReconnectDelayIfAdminCredential_=function(t){var e;(t&&40===t.length||"object"==typeof(e=E(t).claims)&&!0===e.admin)&&(this.log_("Admin auth credential detected.  Reducing max reconnect time."),this.maxReconnectDelay_=3e4)},n.prototype.tryAuth=function(){var t,e,n=this;if(this.connected_&&this.authToken_){var r=this.authToken_,i=(t=E(r),e=t.claims,t.signature&&e&&"object"==typeof e&&e.hasOwnProperty("iat")?"auth":"gauth"),o={cred:r};null===this.authOverride_?o.noauth=!0:"object"==typeof this.authOverride_&&(o.authvar=this.authOverride_),this.sendRequest(i,o,function(t){var e=t.s,i=t.d||"error";n.authToken_===r&&("ok"===e?n.invalidAuthTokenCount_=0:n.onAuthRevoked_(e,i))})}},n.prototype.unlisten=function(t,e){var n=t.path.toString(),r=t.queryIdentifier();this.log_("Unlisten called for "+n+" "+r),s(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)},n.prototype.sendUnlisten_=function(t,e,n,r){this.log_("Unlisten on "+t+" for "+e);var i={p:t};r&&(i.q=n,i.t=r),this.sendRequest("n",i)},n.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})},n.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})},n.prototype.onDisconnectCancel=function(t,e){this.connected_?this.sendOnDisconnect_("oc",t,null,e):this.onDisconnectRequestQueue_.push({pathString:t,action:"oc",data:null,onComplete:e})},n.prototype.sendOnDisconnect_=function(t,e,n,r){var i={p:e,d:n};this.log_("onDisconnect "+t,i),this.sendRequest(t,i,function(t){r&&setTimeout(function(){r(t.s,t.d)},Math.floor(0))})},n.prototype.put=function(t,e,n,r){this.putInternal("p",t,e,n,r)},n.prototype.merge=function(t,e,n,r){this.putInternal("m",t,e,n,r)},n.prototype.putInternal=function(t,e,n,r,i){var o={p:e,d:n};void 0!==i&&(o.h=i),this.outstandingPuts_.push({action:t,request:o,onComplete:r}),this.outstandingPutCount_++;var s=this.outstandingPuts_.length-1;this.connected_?this.sendPut_(s):this.log_("Buffering put: "+e)},n.prototype.sendPut_=function(t){var e=this,n=this.outstandingPuts_[t].action,r=this.outstandingPuts_[t].request,i=this.outstandingPuts_[t].onComplete;this.outstandingPuts_[t].queued=this.connected_,this.sendRequest(n,r,function(r){e.log_(n+" response",r),delete e.outstandingPuts_[t],e.outstandingPutCount_--,0===e.outstandingPutCount_&&(e.outstandingPuts_=[]),i&&i(r.s,r.d)})},n.prototype.reportStats=function(t){var e=this;if(this.connected_){var n={c:t};this.log_("reportStats",n),this.sendRequest("s",n,function(t){if("ok"!==t.s){var n=t.d;e.log_("reportStats","Error sending stats: "+n)}})}},n.prototype.onDataMessage_=function(t){if("r"in t){this.log_("from server: "+C(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)}},n.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):et("Unrecognized action received from server: "+C(t)+"\nAre you using the latest client?")},n.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)},n.prototype.scheduleConnect_=function(t){var e=this;s(!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))},n.prototype.onVisible_=function(t){t&&!this.visible_&&this.reconnectDelay_===this.maxReconnectDelay_&&(this.log_("Window became visible.  Reducing delay."),this.reconnectDelay_=In,this.realtime_||this.scheduleConnect_(0)),this.visible_=t},n.prototype.onOnline_=function(t){t?(this.log_("Browser went online."),this.reconnectDelay_=In,this.realtime_||this.scheduleConnect_(0)):(this.log_("Browser went offline.  Killing connection."),this.realtime_&&this.realtime_.close())},n.prototype.onRealtimeDisconnect_=function(){if(this.log_("data client disconnected"),this.connected_=!1,this.realtime_=null,this.cancelSentTransactions_(),this.requestCBHash_={},this.shouldReconnect_()){if(this.visible_){if(this.lastConnectionEstablishedTime_){(new Date).getTime()-this.lastConnectionEstablishedTime_>3e4&&(this.reconnectDelay_=In),this.lastConnectionEstablishedTime_=null}}else this.log_("Window isn't visible.  Delaying reconnect."),this.reconnectDelay_=this.maxReconnectDelay_,this.lastConnectionAttemptTime_=(new Date).getTime();var t=(new Date).getTime()-this.lastConnectionAttemptTime_,e=Math.max(0,this.reconnectDelay_-t);e=Math.random()*e,this.log_("Trying to reconnect in "+e+"ms"),this.scheduleConnect_(e),this.reconnectDelay_=Math.min(this.maxReconnectDelay_,1.3*this.reconnectDelay_)}this.onConnectStatus_(!1)},n.prototype.establishConnection_=function(){if(this.shouldReconnect_()){this.log_("Making a connection attempt"),this.lastConnectionAttemptTime_=(new Date).getTime(),this.lastConnectionEstablishedTime_=null;var t=this.onDataMessage_.bind(this),e=this.onReady_.bind(this),r=this.onRealtimeDisconnect_.bind(this),i=this.id+":"+n.nextConnectionId_++,a=this,h=this.lastSessionId,u=!1,l=null,c=function(){l?l.close():(u=!0,r())};this.realtime_={close:c,sendRequest:function(t){s(l,"sendRequest call when we're not connected not allowed."),l.sendRequest(t)}};var p=this.forceTokenRefresh_;this.forceTokenRefresh_=!1,this.authTokenProvider_.getToken(p).then(function(n){u?Z("getToken() completed but was canceled"):(Z("getToken() completed. Creating connection."),a.authToken_=n&&n.accessToken,l=new Tn(i,a.repoInfo_,t,e,r,function(t){rt(t+" ("+a.repoInfo_.toString()+")"),a.interrupt("server_kill")},h))}).then(null,function(t){a.log_("Failed to get token: "+t),u||(o.NODE_ADMIN&&rt(t),c())})}},n.prototype.interrupt=function(t){Z("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_())},n.prototype.resume=function(t){Z("Resuming connection for reason: "+t),delete this.interruptReasons_[t],N(this.interruptReasons_)&&(this.reconnectDelay_=In,this.realtime_||this.scheduleConnect_(0))},n.prototype.handleTimestamp_=function(t){var e=t-(new Date).getTime();this.onServerInfoUpdate_({serverTimeOffset:e})},n.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_=[])},n.prototype.onListenRevoked_=function(t,e){var n;n=e?e.map(function(t){return lt(t)}).join("$"):"default";var r=this.removeListen_(t,n);r&&r.onComplete&&r.onComplete("permission_denied")},n.prototype.removeListen_=function(t,e){var n,r=new mt(t).toString();return void 0!==this.listens_[r]?(n=this.listens_[r][e],delete this.listens_[r][e],0===I(this.listens_[r])&&delete this.listens_[r]):n=void 0,n},n.prototype.onAuthRevoked_=function(t,e){Z("Auth token revoked: "+t+"/"+e),this.authToken_=null,this.forceTokenRefresh_=!0,this.realtime_.close(),"invalid_token"!==t&&"permission_denied"!==t||(this.invalidAuthTokenCount_++,this.invalidAuthTokenCount_>=3&&(this.reconnectDelay_=3e4,this.authTokenProvider_.notifyForInvalidToken()))},n.prototype.onSecurityDebugPacket_=function(t){this.securityDebugCallback_?this.securityDebugCallback_(t):"msg"in t&&console.log("FIREBASE: "+t.msg.replace("\n","\nFIREBASE: "))},n.prototype.restoreState_=function(){var t=this;this.tryAuth(),S(this.listens_,function(e,n){S(n,function(e,n){t.sendListen_(n)})});for(var e=0;e<this.outstandingPuts_.length;e++)this.outstandingPuts_[e]&&this.sendPut_(e);for(;this.onDisconnectRequestQueue_.length;){var n=this.onDisconnectRequestQueue_.shift();this.sendOnDisconnect_(n.action,n.pathString,n.data,n.onComplete)}},n.prototype.sendConnectStats_=function(){var t={},n="js";o.NODE_ADMIN?n="admin_node":o.NODE_CLIENT&&(n="node"),t["sdk."+n+"."+e.SDK_VERSION.replace(/\./g,"-")]=1,d()?t["framework.cordova"]=1:"object"==typeof navigator&&"ReactNative"===navigator.product&&(t["framework.reactnative"]=1),this.reportStats(t)},n.prototype.shouldReconnect_=function(){var t=yn.getInstance().currentlyOnline();return N(this.interruptReasons_)&&t},n.nextPersistentConnectionId_=0,n.nextConnectionId_=0,n}(Nn),Dn=function(t){function e(e,n,r){var i=t.call(this)||this;return i.repoInfo_=e,i.onDataUpdate_=n,i.authTokenProvider_=r,i.log_=tt("p:rest:"),i.listens_={},i}return r(e,t),e.prototype.reportStats=function(t){throw new Error("Method not implemented.")},e.getListenId_=function(t,e){return void 0!==e?"tag$"+e:(s(t.getQueryParams().isDefault(),"should have a tag if it's not a default query."),t.path.toString())},e.prototype.listen=function(t,n,r,i){var o=this,s=t.path.toString();this.log_("Listen called for "+s+" "+t.queryIdentifier());var a=e.getListenId_(t,r),h={};this.listens_[a]=h;var u=t.getQueryParams().toRestQueryStringParameters();this.restRequest_(s+".json",u,function(t,e){var n=e;(404===t&&(n=null,t=null),null===t&&o.onDataUpdate_(s,n,!1,r),b(o.listens_,a)===h)&&i(t?401==t?"permission_denied":"rest_error:"+t:"ok",null)})},e.prototype.unlisten=function(t,n){var r=e.getListenId_(t,n);delete this.listens_[r]},e.prototype.refreshAuthToken=function(t){},e.prototype.restRequest_=function(t,e,n){var r=this;void 0===e&&(e={}),e.format="export",this.authTokenProvider_.getToken(!1).then(function(i){var o=i&&i.accessToken;o&&(e.auth=o);var s,a=(r.repoInfo_.secure?"https://":"http://")+r.repoInfo_.host+t+"?"+(s=[],S(e,function(t,e){Array.isArray(e)?e.forEach(function(e){s.push(encodeURIComponent(t)+"="+encodeURIComponent(e))}):s.push(encodeURIComponent(t)+"="+encodeURIComponent(e))}),s.length?"&"+s.join("&"):"");r.log_("Sending REST request for "+a);var h=new XMLHttpRequest;h.onreadystatechange=function(){if(n&&4===h.readyState){r.log_("REST Response for "+a+" received. status:",h.status,"response:",h.responseText);var t=null;if(h.status>=200&&h.status<300){try{t=m(h.responseText)}catch(t){rt("Failed to parse JSON response for "+a+": "+h.responseText)}n(null,t)}else 401!==h.status&&404!==h.status&&rt("Got unsuccessful REST response for "+a+" Status: "+h.status),n(h.status);n=null}},h.open("GET",a,!0),h.send()})},e}(Nn),On=function(){function t(t,e,n){var r=this;this.repoInfo_=t,this.app=n,this.dataUpdateCount=0,this.statsListener_=null,this.eventQueue_=new pn,this.nextWriteId_=1,this.interceptServerDataCallback_=null,this.onDisconnect_=new Pe,this.persistentConnection_=null;var i=new on(n);if(this.stats_=an.getCollection(t),e||vt())this.server_=new Dn(this.repoInfo_,this.onDataUpdate_.bind(this),i),setTimeout(this.onConnectStatus_.bind(this,!0),0);else{var o=n.options.databaseAuthVariableOverride;if(void 0!==o&&null!==o){if("object"!=typeof o)throw new Error("Only objects are supported for option databaseAuthVariableOverride");try{C(o)}catch(t){throw new Error("Invalid authOverride provided: "+t)}}this.persistentConnection_=new Pn(this.repoInfo_,this.onDataUpdate_.bind(this),this.onConnectStatus_.bind(this),this.onServerInfoUpdate_.bind(this),i,o),this.server_=this.persistentConnection_}i.addTokenChangeListener(function(t){r.server_.refreshAuthToken(t)}),this.statsReporter_=an.getOrCreateReporter(t,function(){return new cn(r.stats_,r.server_)}),this.transactions_init_(),this.infoData_=new rn,this.infoSyncTree_=new nn({startListening:function(t,e,n,i){var o=[],s=r.infoData_.getNode(t.path);return s.isEmpty()||(o=r.infoSyncTree_.applyServerOverwrite(t.path,s),setTimeout(function(){i("ok")},0)),o},stopListening:function(){}}),this.updateInfo_("connected",!1),this.serverSyncTree_=new nn({startListening:function(t,e,n,i){return r.server_.listen(t,n,e,function(e,n){var o=i(e,n);r.eventQueue_.raiseEventsForChangedPath(t.path,o)}),[]},stopListening:function(t,e){r.server_.unlisten(t,e)}})}return t.prototype.toString=function(){return(this.repoInfo_.secure?"https://":"http://")+this.repoInfo_.host},t.prototype.name=function(){return this.repoInfo_.namespace},t.prototype.serverTime=function(){var t=this.infoData_.getNode(new mt(".info/serverTimeOffset")).val()||0;return(new Date).getTime()+t},t.prototype.generateServerValues=function(){return(t=(t={timestamp:this.serverTime()})||{}).timestamp=t.timestamp||(new Date).getTime(),t;var t},t.prototype.onDataUpdate_=function(t,e,n,r){this.dataUpdateCount++;var i=new mt(t);e=this.interceptServerDataCallback_?this.interceptServerDataCallback_(t,e):e;var o=[];if(r)if(n){var s=R(e,function(t){return ve(t)});o=this.serverSyncTree_.applyTaggedQueryMerge(i,s,r)}else{var a=ve(e);o=this.serverSyncTree_.applyTaggedQueryOverwrite(i,a,r)}else if(n){var h=R(e,function(t){return ve(t)});o=this.serverSyncTree_.applyServerMerge(i,h)}else{var u=ve(e);o=this.serverSyncTree_.applyServerOverwrite(i,u)}var l=i;o.length>0&&(l=this.rerunTransactions_(i)),this.eventQueue_.raiseEventsForChangedPath(l,o)},t.prototype.interceptServerData_=function(t){this.interceptServerDataCallback_=t},t.prototype.onConnectStatus_=function(t){this.updateInfo_("connected",t),!1===t&&this.runOnDisconnectEvents_()},t.prototype.onServerInfoUpdate_=function(t){var e=this;pt(t,function(t,n){e.updateInfo_(n,t)})},t.prototype.updateInfo_=function(t,e){var n=new mt("/.info/"+t),r=ve(e);this.infoData_.updateSnapshot(n,r);var i=this.infoSyncTree_.applyServerOverwrite(n,r);this.eventQueue_.raiseEventsForChangedPath(n,i)},t.prototype.getNextWriteId_=function(){return this.nextWriteId_++},t.prototype.setWithPriority=function(t,e,n,r){var i=this;this.log_("set",{path:t.toString(),value:e,priority:n});var o=this.generateServerValues(),s=ve(e,n),a=Oe(s,o),h=this.getNextWriteId_(),u=this.serverSyncTree_.applyUserOverwrite(t,a,h,!0);this.eventQueue_.queueEvents(u),this.server_.put(t.toString(),s.val(!0),function(e,n){var o="ok"===e;o||rt("set at "+t+" failed: "+e);var s=i.serverSyncTree_.ackUserWrite(h,!o);i.eventQueue_.raiseEventsForChangedPath(t,s),i.callOnCompleteCallback(r,e,n)});var l=this.abortTransactions_(t);this.rerunTransactions_(l),this.eventQueue_.raiseEventsForChangedPath(l,[])},t.prototype.update=function(t,e,n){var r=this;this.log_("update",{path:t.toString(),value:e});var i=!0,o=this.generateServerValues(),s={};if(S(e,function(t,e){i=!1;var n=ve(e);s[t]=Oe(n,o)}),i)Z("update() called with empty data.  Don't do anything."),this.callOnCompleteCallback(n,"ok");else{var a=this.getNextWriteId_(),h=this.serverSyncTree_.applyUserMerge(t,s,a);this.eventQueue_.queueEvents(h),this.server_.merge(t.toString(),e,function(e,i){var o="ok"===e;o||rt("update at "+t+" failed: "+e);var s=r.serverSyncTree_.ackUserWrite(a,!o),h=s.length>0?r.rerunTransactions_(t):t;r.eventQueue_.raiseEventsForChangedPath(h,s),r.callOnCompleteCallback(n,e,i)}),S(e,function(e){var n=r.abortTransactions_(t.child(e));r.rerunTransactions_(n)}),this.eventQueue_.raiseEventsForChangedPath(t,[])}},t.prototype.runOnDisconnectEvents_=function(){var t=this;this.log_("onDisconnectEvents");var e=this.generateServerValues(),n=[];(function(t,e){var n=new Pe;return t.forEachTree(new mt(""),function(t,r){n.remember(t,Oe(r,e))}),n})(this.onDisconnect_,e).forEachTree(mt.Empty,function(e,r){n=n.concat(t.serverSyncTree_.applyServerOverwrite(e,r));var i=t.abortTransactions_(e);t.rerunTransactions_(i)}),this.onDisconnect_=new Pe,this.eventQueue_.raiseEventsForChangedPath(mt.Empty,n)},t.prototype.onDisconnectCancel=function(t,e){var n=this;this.server_.onDisconnectCancel(t.toString(),function(r,i){"ok"===r&&n.onDisconnect_.forget(t),n.callOnCompleteCallback(e,r,i)})},t.prototype.onDisconnectSet=function(t,e,n){var r=this,i=ve(e);this.server_.onDisconnectPut(t.toString(),i.val(!0),function(e,o){"ok"===e&&r.onDisconnect_.remember(t,i),r.callOnCompleteCallback(n,e,o)})},t.prototype.onDisconnectSetWithPriority=function(t,e,n,r){var i=this,o=ve(e,n);this.server_.onDisconnectPut(t.toString(),o.val(!0),function(e,n){"ok"===e&&i.onDisconnect_.remember(t,o),i.callOnCompleteCallback(r,e,n)})},t.prototype.onDisconnectUpdate=function(t,e,n){var r=this;if(N(e))return Z("onDisconnect().update() called with empty data.  Don't do anything."),void this.callOnCompleteCallback(n,"ok");this.server_.onDisconnectMerge(t.toString(),e,function(i,o){"ok"===i&&S(e,function(e,n){var i=ve(n);r.onDisconnect_.remember(t.child(e),i)}),r.callOnCompleteCallback(n,i,o)})},t.prototype.addEventCallbackForQuery=function(t,e){var n;n=".info"===t.path.getFront()?this.infoSyncTree_.addEventRegistration(t,e):this.serverSyncTree_.addEventRegistration(t,e),this.eventQueue_.raiseEventsAtPath(t.path,n)},t.prototype.removeEventCallbackForQuery=function(t,e){var n;n=".info"===t.path.getFront()?this.infoSyncTree_.removeEventRegistration(t,e):this.serverSyncTree_.removeEventRegistration(t,e),this.eventQueue_.raiseEventsAtPath(t.path,n)},t.prototype.interrupt=function(){this.persistentConnection_&&this.persistentConnection_.interrupt("repo_interrupt")},t.prototype.resume=function(){this.persistentConnection_&&this.persistentConnection_.resume("repo_interrupt")},t.prototype.stats=function(t){if(void 0===t&&(t=!1),"undefined"!=typeof console){var e;t?(this.statsListener_||(this.statsListener_=new hn(this.stats_)),e=this.statsListener_.get()):e=this.stats_.get();var n=Object.keys(e).reduce(function(t,e){return Math.max(e.length,t)},0);S(e,function(t,e){for(var r=t.length;r<n+2;r++)t+=" ";console.log(t+e)})}},t.prototype.statsIncrementCounter=function(t){this.stats_.incrementCounter(t),this.statsReporter_.includeStat(t)},t.prototype.log_=function(){for(var t=[],e=0;e<arguments.length;e++)t[e]=arguments[e];var n="";this.persistentConnection_&&(n=this.persistentConnection_.id+":"),Z.apply(void 0,[n].concat(t))},t.prototype.callOnCompleteCallback=function(t,e,n){t&&yt(function(){if("ok"==e)t(null);else{var r=(e||"error").toUpperCase(),i=r;n&&(i+=": "+n);var o=new Error(i);o.code=r,t(o)}})},Object.defineProperty(t.prototype,"database",{get:function(){return this.__database||(this.__database=new Un(this))},enumerable:!0,configurable:!0}),t}(),kn=function(){function t(e){this.indexedFilter_=new Be(e.getIndex()),this.index_=e.getIndex(),this.startPost_=t.getStartPost_(e),this.endPost_=t.getEndPost_(e)}return t.prototype.getStartPost=function(){return this.startPost_},t.prototype.getEndPost=function(){return this.endPost_},t.prototype.matches=function(t){return this.index_.compare(this.getStartPost(),t)<=0&&this.index_.compare(t,this.getEndPost())<=0},t.prototype.updateChild=function(t,e,n,r,i,o){return this.matches(new Bt(e,n))||(n=fe.EMPTY_NODE),this.indexedFilter_.updateChild(t,e,n,r,i,o)},t.prototype.updateFullNode=function(t,e,n){e.isLeafNode()&&(e=fe.EMPTY_NODE);var r=e.withIndex(this.index_);r=r.updatePriority(fe.EMPTY_NODE);var i=this;return e.forEachChild(ne,function(t,e){i.matches(new Bt(t,e))||(r=r.updateImmediateChild(t,fe.EMPTY_NODE))}),this.indexedFilter_.updateFullNode(t,r,n)},t.prototype.updatePriority=function(t,e){return t},t.prototype.filtersNodes=function(){return!0},t.prototype.getIndexedFilter=function(){return this.indexedFilter_},t.prototype.getIndex=function(){return this.index_},t.getStartPost_=function(t){if(t.hasStart()){var e=t.getIndexStartName();return t.getIndex().makePost(t.getIndexStartValue(),e)}return t.getIndex().minPost()},t.getEndPost_=function(t){if(t.hasEnd()){var e=t.getIndexEndName();return t.getIndex().makePost(t.getIndexEndValue(),e)}return t.getIndex().maxPost()},t}(),xn=function(){function t(t){this.rangedFilter_=new kn(t),this.index_=t.getIndex(),this.limit_=t.getLimit(),this.reverse_=!t.isViewFromLeft()}return t.prototype.updateChild=function(t,e,n,r,i,o){return this.rangedFilter_.matches(new Bt(e,n))||(n=fe.EMPTY_NODE),t.getImmediateChild(e).equals(n)?t:t.numChildren()<this.limit_?this.rangedFilter_.getIndexedFilter().updateChild(t,e,n,r,i,o):this.fullLimitUpdateChild_(t,e,n,i,o)},t.prototype.updateFullNode=function(t,e,n){var r;if(e.isLeafNode()||e.isEmpty())r=fe.EMPTY_NODE.withIndex(this.index_);else if(2*this.limit_<e.numChildren()&&e.isIndexed(this.index_)){r=fe.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(fe.EMPTY_NODE);var a=void 0,h=void 0,u=void 0;i=void 0;if(this.reverse_){i=r.getReverseIterator(this.index_),a=this.rangedFilter_.getEndPost(),h=this.rangedFilter_.getStartPost();var l=this.index_.getCompare();u=function(t,e){return l(e,t)}}else i=r.getIterator(this.index_),a=this.rangedFilter_.getStartPost(),h=this.rangedFilter_.getEndPost(),u=this.index_.getCompare();o=0;for(var c=!1;i.hasNext();){s=i.getNext();!c&&u(a,s)<=0&&(c=!0),c&&o<this.limit_&&u(s,h)<=0?o++:r=r.updateImmediateChild(s.name,fe.EMPTY_NODE)}}return this.rangedFilter_.getIndexedFilter().updateFullNode(t,r,n)},t.prototype.updatePriority=function(t,e){return t},t.prototype.filtersNodes=function(){return!0},t.prototype.getIndexedFilter=function(){return this.rangedFilter_.getIndexedFilter()},t.prototype.getIndex=function(){return this.index_},t.prototype.fullLimitUpdateChild_=function(t,e,n,r,i){var o;if(this.reverse_){var a=this.index_.getCompare();o=function(t,e){return a(e,t)}}else o=this.index_.getCompare();var h=t;s(h.numChildren()==this.limit_,"");var u=new Bt(e,n),l=this.reverse_?h.getFirstChild(this.index_):h.getLastChild(this.index_),c=this.rangedFilter_.matches(u);if(h.hasChild(e)){for(var p=h.getImmediateChild(e),d=r.getChildAfterChild(this.index_,l,this.reverse_);null!=d&&(d.name==e||h.hasChild(d.name));)d=r.getChildAfterChild(this.index_,d,this.reverse_);var f=null==d?1:o(d,u);if(c&&!n.isEmpty()&&f>=0)return null!=i&&i.trackChildChange(He.childChangedChange(e,n,p)),h.updateImmediateChild(e,n);null!=i&&i.trackChildChange(He.childRemovedChange(e,p));var _=h.updateImmediateChild(e,fe.EMPTY_NODE);return null!=d&&this.rangedFilter_.matches(d)?(null!=i&&i.trackChildChange(He.childAddedChange(d.name,d.node)),_.updateImmediateChild(d.name,d.node)):_}return n.isEmpty()?t:c&&o(l,u)>=0?(null!=i&&(i.trackChildChange(He.childRemovedChange(l.name,l.node)),i.trackChildChange(He.childAddedChange(e,n))),h.updateImmediateChild(e,n).updateImmediateChild(l.name,fe.EMPTY_NODE)):t},t}(),Fn=function(){function t(){this.limitSet_=!1,this.startSet_=!1,this.startNameSet_=!1,this.endSet_=!1,this.endNameSet_=!1,this.limit_=0,this.viewFrom_="",this.indexStartValue_=null,this.indexStartName_="",this.indexEndValue_=null,this.indexEndName_="",this.index_=ne}return t.prototype.hasStart=function(){return this.startSet_},t.prototype.isViewFromLeft=function(){return""===this.viewFrom_?this.startSet_:this.viewFrom_===t.WIRE_PROTOCOL_CONSTANTS_.VIEW_FROM_LEFT},t.prototype.getIndexStartValue=function(){return s(this.startSet_,"Only valid if start has been set"),this.indexStartValue_},t.prototype.getIndexStartName=function(){return s(this.startSet_,"Only valid if start has been set"),this.startNameSet_?this.indexStartName_:ot},t.prototype.hasEnd=function(){return this.endSet_},t.prototype.getIndexEndValue=function(){return s(this.endSet_,"Only valid if end has been set"),this.indexEndValue_},t.prototype.getIndexEndName=function(){return s(this.endSet_,"Only valid if end has been set"),this.endNameSet_?this.indexEndName_:st},t.prototype.hasLimit=function(){return this.limitSet_},t.prototype.hasAnchoredLimit=function(){return this.limitSet_&&""!==this.viewFrom_},t.prototype.getLimit=function(){return s(this.limitSet_,"Only valid if limit has been set"),this.limit_},t.prototype.getIndex=function(){return this.index_},t.prototype.copy_=function(){var e=new t;return e.limitSet_=this.limitSet_,e.limit_=this.limit_,e.startSet_=this.startSet_,e.indexStartValue_=this.indexStartValue_,e.startNameSet_=this.startNameSet_,e.indexStartName_=this.indexStartName_,e.endSet_=this.endSet_,e.indexEndValue_=this.indexEndValue_,e.endNameSet_=this.endNameSet_,e.indexEndName_=this.indexEndName_,e.index_=this.index_,e.viewFrom_=this.viewFrom_,e},t.prototype.limit=function(t){var e=this.copy_();return e.limitSet_=!0,e.limit_=t,e.viewFrom_="",e},t.prototype.limitToFirst=function(e){var n=this.copy_();return n.limitSet_=!0,n.limit_=e,n.viewFrom_=t.WIRE_PROTOCOL_CONSTANTS_.VIEW_FROM_LEFT,n},t.prototype.limitToLast=function(e){var n=this.copy_();return n.limitSet_=!0,n.limit_=e,n.viewFrom_=t.WIRE_PROTOCOL_CONSTANTS_.VIEW_FROM_RIGHT,n},t.prototype.startAt=function(t,e){var n=this.copy_();return n.startSet_=!0,void 0===t&&(t=null),n.indexStartValue_=t,null!=e?(n.startNameSet_=!0,n.indexStartName_=e):(n.startNameSet_=!1,n.indexStartName_=""),n},t.prototype.endAt=function(t,e){var n=this.copy_();return n.endSet_=!0,void 0===t&&(t=null),n.indexEndValue_=t,void 0!==e?(n.endNameSet_=!0,n.indexEndName_=e):(n.endNameSet_=!1,n.indexEndName_=""),n},t.prototype.orderBy=function(t){var e=this.copy_();return e.index_=t,e},t.prototype.getQueryObject=function(){var e=t.WIRE_PROTOCOL_CONSTANTS_,n={};if(this.startSet_&&(n[e.INDEX_START_VALUE]=this.indexStartValue_,this.startNameSet_&&(n[e.INDEX_START_NAME]=this.indexStartName_)),this.endSet_&&(n[e.INDEX_END_VALUE]=this.indexEndValue_,this.endNameSet_&&(n[e.INDEX_END_NAME]=this.indexEndName_)),this.limitSet_){n[e.LIMIT]=this.limit_;var r=this.viewFrom_;""===r&&(r=this.isViewFromLeft()?e.VIEW_FROM_LEFT:e.VIEW_FROM_RIGHT),n[e.VIEW_FROM]=r}return this.index_!==ne&&(n[e.INDEX]=this.index_.toString()),n},t.prototype.loadsAllData=function(){return!(this.startSet_||this.endSet_||this.limitSet_)},t.prototype.isDefault=function(){return this.loadsAllData()&&this.index_==ne},t.prototype.getNodeFilter=function(){return this.loadsAllData()?new Be(this.getIndex()):this.hasLimit()?new xn(this):new kn(this)},t.prototype.toRestQueryStringParameters=function(){var e,n=t.REST_QUERY_CONSTANTS_,r={};return this.isDefault()?r:(this.index_===ne?e=n.PRIORITY_INDEX:this.index_===Ce?e=n.VALUE_INDEX:this.index_===Yt?e=n.KEY_INDEX:(s(this.index_ instanceof Ee,"Unrecognized index type!"),e=this.index_.toString()),r[n.ORDER_BY]=C(e),this.startSet_&&(r[n.START_AT]=C(this.indexStartValue_),this.startNameSet_&&(r[n.START_AT]+=","+C(this.indexStartName_))),this.endSet_&&(r[n.END_AT]=C(this.indexEndValue_),this.endNameSet_&&(r[n.END_AT]+=","+C(this.indexEndName_))),this.limitSet_&&(this.isViewFromLeft()?r[n.LIMIT_TO_FIRST]=this.limit_:r[n.LIMIT_TO_LAST]=this.limit_),r)},t.WIRE_PROTOCOL_CONSTANTS_={INDEX_START_VALUE:"sp",INDEX_START_NAME:"sn",INDEX_END_VALUE:"ep",INDEX_END_NAME:"en",LIMIT:"l",VIEW_FROM:"vf",VIEW_FROM_LEFT:"l",VIEW_FROM_RIGHT:"r",INDEX:"i"},t.REST_QUERY_CONSTANTS_={ORDER_BY:"orderBy",PRIORITY_INDEX:"$priority",VALUE_INDEX:"$value",KEY_INDEX:"$key",START_AT:"startAt",END_AT:"endAt",LIMIT_TO_FIRST:"limitToFirst",LIMIT_TO_LAST:"limitToLast"},t.DEFAULT=new t,t}(),An=function(t){function e(e,n){if(!(e instanceof On))throw new Error("new Reference() no longer supported - use app.database().");return t.call(this,e,n,Fn.DEFAULT,!1)||this}return r(e,t),e.prototype.getKey=function(){return k("Reference.key",0,0,arguments.length),this.path.isEmpty()?null:this.path.getBack()},e.prototype.child=function(t){return k("Reference.child",1,1,arguments.length),"number"==typeof t?t=String(t):t instanceof mt||(null===this.path.getFront()?function(t,e,n,r){n&&(n=n.replace(/^\/*\.info(\/|$)/,"/")),Wt(t,e,n,r)}("Reference.child",1,t,!1):Wt("Reference.child",1,t,!1)),new e(this.repo,this.path.child(t))},e.prototype.getParent=function(){k("Reference.parent",0,0,arguments.length);var t=this.path.parent();return null===t?null:new e(this.repo,t)},e.prototype.getRoot=function(){k("Reference.root",0,0,arguments.length);for(var t=this;null!==t.getParent();)t=t.getParent();return t},e.prototype.databaseProp=function(){return this.repo.database},e.prototype.set=function(t,e){k("Reference.set",1,2,arguments.length),qt("Reference.set",this.path),kt("Reference.set",1,t,this.path,!1),F("Reference.set",2,e,!0);var n=new p;return this.repo.setWithPriority(this.path,t,null,n.wrapCallback(e)),n.promise},e.prototype.update=function(t,e){if(k("Reference.update",1,2,arguments.length),qt("Reference.update",this.path),Array.isArray(t)){for(var n={},r=0;r<t.length;++r)n[""+r]=t[r];t=n,rt("Passing an Array to Firebase.update() is deprecated. Use set() if you want to overwrite the existing data, or an Object with integer keys if you really do want to only update some of the children.")}Ft("Reference.update",1,t,this.path,!1),F("Reference.update",2,e,!0);var i=new p;return this.repo.update(this.path,t,i.wrapCallback(e)),i.promise},e.prototype.setWithPriority=function(t,e,n){if(k("Reference.setWithPriority",2,3,arguments.length),qt("Reference.setWithPriority",this.path),kt("Reference.setWithPriority",1,t,this.path,!1),At("Reference.setWithPriority",2,e,!1),F("Reference.setWithPriority",3,n,!0),".length"===this.getKey()||".keys"===this.getKey())throw"Reference.setWithPriority failed: "+this.getKey()+" is a read-only object.";var r=new p;return this.repo.setWithPriority(this.path,t,e,r.wrapCallback(n)),r.promise},e.prototype.remove=function(t){return k("Reference.remove",0,1,arguments.length),qt("Reference.remove",this.path),F("Reference.remove",1,t,!0),this.set(null,t)},e.prototype.transaction=function(t,e,n){if(k("Reference.transaction",1,3,arguments.length),qt("Reference.transaction",this.path),F("Reference.transaction",1,t,!1),F("Reference.transaction",2,e,!0),function(t,e,n,r){if((!r||void 0!==n)&&"boolean"!=typeof n)throw new Error(x(t,e,r)+"must be a boolean.")}("Reference.transaction",3,n,!0),".length"===this.getKey()||".keys"===this.getKey())throw"Reference.transaction failed: "+this.getKey()+" is a read-only object.";void 0===n&&(n=!0);var r=new p;"function"==typeof e&&r.promise.catch(function(){});return this.repo.startTransaction(this.path,t,function(t,n,i){t?r.reject(t):r.resolve(new Vt(n,i)),"function"==typeof e&&e(t,n,i)},n),r.promise},e.prototype.setPriority=function(t,e){k("Reference.setPriority",1,2,arguments.length),qt("Reference.setPriority",this.path),At("Reference.setPriority",1,t,!1),F("Reference.setPriority",2,e,!0);var n=new p;return this.repo.setWithPriority(this.path.child(".priority"),t,null,n.wrapCallback(e)),n.promise},e.prototype.push=function(t,e){k("Reference.push",0,2,arguments.length),qt("Reference.push",this.path),kt("Reference.push",1,t,this.path,!0),F("Reference.push",2,e,!0);var n,r=this.repo.serverTime(),i=Ht(r),o=this.child(i),s=this.child(i);return n=null!=t?o.set(t,e).then(function(){return s}):Promise.resolve(s),o.then=n.then.bind(n),o.catch=n.then.bind(n,void 0),"function"==typeof e&&n.catch(function(){}),o},e.prototype.onDisconnect=function(){return qt("Reference.onDisconnect",this.path),new Ut(this.repo,this.path)},Object.defineProperty(e.prototype,"database",{get:function(){return this.databaseProp()},enumerable:!0,configurable:!0}),Object.defineProperty(e.prototype,"key",{get:function(){return this.getKey()},enumerable:!0,configurable:!0}),Object.defineProperty(e.prototype,"parent",{get:function(){return this.getParent()},enumerable:!0,configurable:!0}),Object.defineProperty(e.prototype,"root",{get:function(){return this.getRoot()},enumerable:!0,configurable:!0}),e}(Ie);Ie.__referenceConstructor=An,Je.__referenceConstructor=An;var Ln,Mn=function(){return function(){this.children={},this.childCount=0,this.value=null}}(),Wn=function(){function t(t,e,n){void 0===t&&(t=""),void 0===e&&(e=null),void 0===n&&(n=new Mn),this.name_=t,this.parent_=e,this.node_=n}return t.prototype.subTree=function(e){for(var n,r=e instanceof mt?e:new mt(e),i=this;null!==(n=r.getFront());){i=new t(n,i,b(i.node_.children,n)||new Mn),r=r.popFront()}return i},t.prototype.getValue=function(){return this.node_.value},t.prototype.setValue=function(t){s(void 0!==t,"Cannot set value to undefined"),this.node_.value=t,this.updateParents_()},t.prototype.clear=function(){this.node_.value=null,this.node_.children={},this.node_.childCount=0,this.updateParents_()},t.prototype.hasChildren=function(){return this.node_.childCount>0},t.prototype.isEmpty=function(){return null===this.getValue()&&!this.hasChildren()},t.prototype.forEachChild=function(e){var n=this;S(this.node_.children,function(r,i){e(new t(r,n,i))})},t.prototype.forEachDescendant=function(t,e,n){e&&!n&&t(this),this.forEachChild(function(e){e.forEachDescendant(t,!0,n)}),e&&n&&t(this)},t.prototype.forEachAncestor=function(t,e){for(var n=e?this:this.parent();null!==n;){if(t(n))return!0;n=n.parent()}return!1},t.prototype.forEachImmediateDescendantWithValue=function(t){this.forEachChild(function(e){null!==e.getValue()?t(e):e.forEachImmediateDescendantWithValue(t)})},t.prototype.path=function(){return new mt(null===this.parent_?this.name_:this.parent_.path()+"/"+this.name_)},t.prototype.name=function(){return this.name_},t.prototype.parent=function(){return this.parent_},t.prototype.updateParents_=function(){null!==this.parent_&&this.parent_.updateChild_(this.name_,this)},t.prototype.updateChild_=function(t,e){var n=e.isEmpty(),r=w(this.node_.children,t);n&&r?(delete this.node_.children[t],this.node_.childCount--,this.updateParents_()):n||r||(this.node_.children[t]=e.node_,this.node_.childCount++,this.updateParents_())},t}();!function(t){t[t.RUN=0]="RUN",t[t.SENT=1]="SENT",t[t.COMPLETED=2]="COMPLETED",t[t.SENT_NEEDS_ABORT=3]="SENT_NEEDS_ABORT",t[t.NEEDS_ABORT=4]="NEEDS_ABORT"}(Ln||(Ln={})),On.MAX_TRANSACTION_RETRIES_=25,On.prototype.transactions_init_=function(){this.transactionQueueTree_=new Wn},On.prototype.startTransaction=function(t,e,n,r){this.log_("transaction on "+t);var i=function(){},o=new An(this,t);o.on("value",i);var a={path:t,update:e,onComplete:n,status:null,order:Y(),applyLocally:r,retryCount:0,unwatcher:function(){o.off("value",i)},abortReason:null,currentWriteId:null,currentInputSnapshot:null,currentOutputSnapshotRaw:null,currentOutputSnapshotResolved:null},h=this.getLatestState_(t);a.currentInputSnapshot=h;var u=a.update(h.val());if(void 0===u){if(a.unwatcher(),a.currentOutputSnapshotRaw=null,a.currentOutputSnapshotResolved=null,a.onComplete){var l=new we(a.currentInputSnapshot,new An(this,a.path),ne);a.onComplete(null,!1,l)}}else{xt("transaction failed: Data returned ",u,a.path),a.status=Ln.RUN;var c=this.transactionQueueTree_.subTree(t),p=c.getValue()||[];p.push(a),c.setValue(p);var d=void 0;if("object"==typeof u&&null!==u&&w(u,".priority"))d=b(u,".priority"),s(Ot(d),"Invalid priority returned by transaction. Priority must be a valid string, finite number, server value, or null.");else d=(this.serverSyncTree_.calcCompleteEventCache(t)||fe.EMPTY_NODE).getPriority().val();d=d;var f=this.generateServerValues(),_=ve(u,d),y=Oe(_,f);a.currentOutputSnapshotRaw=_,a.currentOutputSnapshotResolved=y,a.currentWriteId=this.getNextWriteId_();var v=this.serverSyncTree_.applyUserOverwrite(t,y,a.currentWriteId,a.applyLocally);this.eventQueue_.raiseEventsForChangedPath(t,v),this.sendReadyTransactions_()}},On.prototype.getLatestState_=function(t,e){return this.serverSyncTree_.calcCompleteEventCache(t,e)||fe.EMPTY_NODE},On.prototype.sendReadyTransactions_=function(t){var e=this;if(void 0===t&&(t=this.transactionQueueTree_),t||this.pruneCompletedTransactionsBelowNode_(t),null!==t.getValue()){var n=this.buildTransactionQueue_(t);s(n.length>0,"Sending zero length transaction queue"),n.every(function(t){return t.status===Ln.RUN})&&this.sendTransactionQueue_(t.path(),n)}else t.hasChildren()&&t.forEachChild(function(t){e.sendReadyTransactions_(t)})},On.prototype.sendTransactionQueue_=function(t,e){for(var n=this,r=e.map(function(t){return t.currentWriteId}),i=this.getLatestState_(t,r),o=i,a=i.hash(),h=0;h<e.length;h++){var u=e[h];s(u.status===Ln.RUN,"tryToSendTransactionQueue_: items in queue should all be run."),u.status=Ln.SENT,u.retryCount++;var l=mt.relativePath(t,u.path);o=o.updateChild(l,u.currentOutputSnapshotRaw)}var c=o.val(!0),p=t;this.server_.put(p.toString(),c,function(r){n.log_("transaction put response",{path:p.toString(),status:r});var i=[];if("ok"===r){for(var o=[],s=0;s<e.length;s++){if(e[s].status=Ln.COMPLETED,i=i.concat(n.serverSyncTree_.ackUserWrite(e[s].currentWriteId)),e[s].onComplete){var a=e[s].currentOutputSnapshotResolved,h=new An(n,e[s].path),u=new we(a,h,ne);o.push(e[s].onComplete.bind(null,null,!0,u))}e[s].unwatcher()}n.pruneCompletedTransactionsBelowNode_(n.transactionQueueTree_.subTree(t)),n.sendReadyTransactions_(),n.eventQueue_.raiseEventsForChangedPath(t,i);for(s=0;s<o.length;s++)yt(o[s])}else{if("datastale"===r)for(s=0;s<e.length;s++)e[s].status===Ln.SENT_NEEDS_ABORT?e[s].status=Ln.NEEDS_ABORT:e[s].status=Ln.RUN;else{rt("transaction at "+p.toString()+" failed: "+r);for(s=0;s<e.length;s++)e[s].status=Ln.NEEDS_ABORT,e[s].abortReason=r}n.rerunTransactions_(t)}},a)},On.prototype.rerunTransactions_=function(t){var e=this.getAncestorTransactionNode_(t),n=e.path(),r=this.buildTransactionQueue_(e);return this.rerunTransactionQueue_(r,n),n},On.prototype.rerunTransactionQueue_=function(t,e){if(0!==t.length){for(var n,r=[],i=[],o=t.filter(function(t){return t.status===Ln.RUN}).map(function(t){return t.currentWriteId}),a=0;a<t.length;a++){var h=t[a],u=mt.relativePath(e,h.path),l=!1,c=void 0;if(s(null!==u,"rerunTransactionsUnderNode_: relativePath should not be null."),h.status===Ln.NEEDS_ABORT)l=!0,c=h.abortReason,i=i.concat(this.serverSyncTree_.ackUserWrite(h.currentWriteId,!0));else if(h.status===Ln.RUN)if(h.retryCount>=On.MAX_TRANSACTION_RETRIES_)l=!0,c="maxretry",i=i.concat(this.serverSyncTree_.ackUserWrite(h.currentWriteId,!0));else{var p=this.getLatestState_(h.path,o);h.currentInputSnapshot=p;var d=t[a].update(p.val());if(void 0!==d){xt("transaction failed: Data returned ",d,h.path);var f=ve(d);"object"==typeof d&&null!=d&&w(d,".priority")||(f=f.updatePriority(p.getPriority()));var _=h.currentWriteId,y=this.generateServerValues(),v=Oe(f,y);h.currentOutputSnapshotRaw=f,h.currentOutputSnapshotResolved=v,h.currentWriteId=this.getNextWriteId_(),o.splice(o.indexOf(_),1),i=(i=i.concat(this.serverSyncTree_.applyUserOverwrite(h.path,v,h.currentWriteId,h.applyLocally))).concat(this.serverSyncTree_.ackUserWrite(_,!0))}else l=!0,c="nodata",i=i.concat(this.serverSyncTree_.ackUserWrite(h.currentWriteId,!0))}if(this.eventQueue_.raiseEventsForChangedPath(e,i),i=[],l&&(t[a].status=Ln.COMPLETED,n=t[a].unwatcher,setTimeout(n,Math.floor(0)),t[a].onComplete))if("nodata"===c){var g=new An(this,t[a].path),m=t[a].currentInputSnapshot,C=new we(m,g,ne);r.push(t[a].onComplete.bind(null,null,!1,C))}else r.push(t[a].onComplete.bind(null,new Error(c),!1,null))}this.pruneCompletedTransactionsBelowNode_(this.transactionQueueTree_);for(a=0;a<r.length;a++)yt(r[a]);this.sendReadyTransactions_()}},On.prototype.getAncestorTransactionNode_=function(t){for(var e,n=this.transactionQueueTree_;null!==(e=t.getFront())&&null===n.getValue();)n=n.subTree(e),t=t.popFront();return n},On.prototype.buildTransactionQueue_=function(t){var e=[];return this.aggregateTransactionQueuesForNode_(t,e),e.sort(function(t,e){return t.order-e.order}),e},On.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)})},On.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!==Ln.COMPLETED&&(n[r]=n[i],r++);n.length=r,t.setValue(n.length>0?n:null)}t.forEachChild(function(t){e.pruneCompletedTransactionsBelowNode_(t)})},On.prototype.abortTransactions_=function(t){var e=this,n=this.getAncestorTransactionNode_(t).path(),r=this.transactionQueueTree_.subTree(t);return r.forEachAncestor(function(t){e.abortTransactionsOnNode_(t)}),this.abortTransactionsOnNode_(r),r.forEachDescendant(function(t){e.abortTransactionsOnNode_(t)}),n},On.prototype.abortTransactionsOnNode_=function(t){var e=t.getValue();if(null!==e){for(var n=[],r=[],i=-1,o=0;o<e.length;o++)if(e[o].status===Ln.SENT_NEEDS_ABORT);else if(e[o].status===Ln.SENT)s(i===o-1,"All SENT items should be at beginning of queue."),i=o,e[o].status=Ln.SENT_NEEDS_ABORT,e[o].abortReason="set";else if(s(e[o].status===Ln.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++)yt(n[o])}};var qn,Qn=function(){function t(){this.repos_={},this.useRestClient_=!1}return t.getInstance=function(){return qn||(qn=new t),qn},t.prototype.interrupt=function(){for(var t in this.repos_)for(var e in this.repos_[t])this.repos_[t][e].interrupt()},t.prototype.resume=function(){for(var t in this.repos_)for(var e in this.repos_[t])this.repos_[t][e].resume()},t.prototype.databaseFromApp=function(t,e){var n=e||t.options.databaseURL;void 0===n&&nt("Can't determine Firebase Database URL.  Be sure to include databaseURL option when calling firebase.initializeApp().");var r=Tt(n),i=r.repoInfo;return Qt("Invalid Firebase Database URL",1,r),r.path.isEmpty()||nt("Database URL must point to the root of a Firebase Database (not including a child path)."),this.createRepo(i,t).database},t.prototype.deleteRepo=function(t){var e=b(this.repos_,t.app.name);e&&b(e,t.repoInfo_.toURLString())===t||nt("Database "+t.app.name+"("+t.repoInfo_+") has already been deleted."),t.interrupt(),delete e[t.repoInfo_.toURLString()]},t.prototype.createRepo=function(t,e){var n=b(this.repos_,e.name);n||(n={},this.repos_[e.name]=n);var r=b(n,t.toURLString());return r&&nt("Database initialized multiple times. Please make sure the format of the database URL matches with each database() call."),r=new On(t,this.useRestClient_,e),n[t.toURLString()]=r,r},t.prototype.forceRestClient=function(t){this.useRestClient_=t},t}(),Un=function(){function t(t){this.repo_=t,t instanceof On||nt("Don't call new Database() directly - please use firebase.database()."),this.root_=new An(t,mt.Empty),this.INTERNAL=new Vn(this)}return Object.defineProperty(t.prototype,"app",{get:function(){return this.repo_.app},enumerable:!0,configurable:!0}),t.prototype.ref=function(t){return this.checkDeleted_("ref"),k("database.ref",0,1,arguments.length),t instanceof An?this.refFromURL(t.toString()):void 0!==t?this.root_.child(t):this.root_},t.prototype.refFromURL=function(t){var e="database.refFromURL";this.checkDeleted_(e),k(e,1,1,arguments.length);var n=Tt(t);Qt(e,1,n);var r=n.repoInfo;return r.host!==this.repo_.repoInfo_.host&&nt(e+": Host name does not match the current database: (found "+r.host+" but expected "+this.repo_.repoInfo_.host+")"),this.ref(n.path.toString())},t.prototype.checkDeleted_=function(t){null===this.repo_&&nt("Cannot call "+t+" on a deleted database.")},t.prototype.goOffline=function(){k("database.goOffline",0,0,arguments.length),this.checkDeleted_("goOffline"),this.repo_.interrupt()},t.prototype.goOnline=function(){k("database.goOnline",0,0,arguments.length),this.checkDeleted_("goOnline"),this.repo_.resume()},t.ServerValue={TIMESTAMP:{".sv":"timestamp"}},t}(),Vn=function(){function t(t){this.database=t}return t.prototype.delete=function(){return t=this,e=void 0,r=function(){return i(this,function(t){return this.database.checkDeleted_("delete"),Qn.getInstance().deleteRepo(this.database.repo_),this.database.repo_=null,this.database.root_=null,this.database.INTERNAL=null,this.database=null,[2]})},new((n=void 0)||(n=Promise))(function(i,o){function s(t){try{h(r.next(t))}catch(t){o(t)}}function a(t){try{h(r.throw(t))}catch(t){o(t)}}function h(t){t.done?i(t.value):new n(function(e){e(t.value)}).then(s,a)}h((r=r.apply(t,e||[])).next())});var t,e,n,r},t}(),Hn=Object.freeze({forceLongPolling:function(){bn.forceDisallow(),Cn.forceAllow()},forceWebSockets:function(){Cn.forceDisallow()},isWebSocketsAvailable:function(){return bn.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)}}),Bn=Pn;Pn.prototype.simpleListen=function(t,e){this.sendRequest("q",{p:t},e)},Pn.prototype.echo=function(t,e){this.sendRequest("echo",{d:t},e)};var jn=Tn,Kn=wt,Yn=Object.freeze({DataConnection:Bn,RealTimeConnection:jn,hijackHash:function(t){var e=Pn.prototype.put;return Pn.prototype.put=function(n,r,i,o){void 0!==o&&(o=t()),e.call(this,n,r,i,o)},function(){Pn.prototype.put=e}},ConnectionTarget:Kn,queryIdentifier:function(t){return t.queryIdentifier()},listens:function(t){return t.repo.persistentConnection_.listens_},forceRestClient:function(t){Qn.getInstance().forceRestClient(t)}}),zn=Un.ServerValue;Gn=e.INTERNAL.registerService("database",function(t,e,n){return Qn.getInstance().databaseFromApp(t,n)},{Reference:An,Query:Ie,Database:Un,enableLogging:J,INTERNAL:Hn,ServerValue:zn,TEST_ACCESS:Yn},null,!0),f()&&(module.exports=Gn)}catch(t){throw console.error(t),new Error("Cannot instantiate firebase-database - be sure to load firebase-app.js first.")}var Gn,Xn,$n,Jn,Zn}(this.firebase=this.firebase||{},firebase);
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