firetruss/dist/firetruss.umd.min.js

Advanced data sync layer for Firebase and Vue.js

((e,t)=>{"object"==typeof exports&&"undefined"!=typeof module?module.exports=t(require("lodash"),require("vue")):"function"==typeof define&&define.amd?define(["lodash","vue"],t):(e="undefined"!=typeof globalThis?globalThis:e||self).Truss=t(e._,e.Vue)})(this,function(U,I){function e(e){return e&&"object"==typeof e&&"default"in e?e:{default:e}}var _=e(U),u=e(I);function i(){a.digestRequest>n||(a.digestRequest=n+1)}let a,n=0,o=!1,c={active:"undefined"!=typeof window&&window.angular};if(c.active){let t=window.angular.module("firetruss",[]);c.digest=i,c.watch=function(){throw new Error("Angular watch proxy not yet initialized")},c.defineModule=function(e){t.constant("Truss",e)},c.debounceDigest=function(t){if(t){let e=_.default.debounce(i,t);c.digest=function(){a.digestRequest>n||(o?i:e)()}}else c.digest=i},t.config(["$provide",function(e){e.decorator("$rootScope",["$delegate","$exceptionHandler",function(t,e){let r=t;c.watch=r.$watch.bind(r);var t=Object.getPrototypeOf(r),s=t.$digest,t=(t.$digest=i,t.$digest.original=s,(a=new u.default({data:{digestRequest:0}})).$watch(()=>a.digestRequest,()=>{a.digestRequest>n?u.default.nextTick(()=>{a.digestRequest<=n||(o=!0,r.$digest.original.call(r),n=a.digestRequest=a.digestRequest+1)}):o=!1}),_.default.last(a._watchers||a._scope.effects));t.id=1/0;{let e=(s=Object.getPrototypeOf(t)).get;s.get=function(){try{return e.call(this)}catch(e){if(this.vm._watcher!==this||!u.default.config.errorHandler)throw e;u.default.config.errorHandler(e,this.vm,"uncaught render error")}}}return r}])}])}else _.default.forEach(["digest","watch","defineModule","debounceDigest"],e=>{c[e]=_.default.noop});class q{constructor(e,t){this.key=e,this.value=t,this.touch()}touch(){this.timestamp=Date.now()}}let F=new class{constructor(e,t){this._items=Object.create(null),this._size=0,this._maxSize=e,this._pruningSize=t||Math.ceil(.1*e)}has(e){return Boolean(this._items[e])}get(e){e=this._items[e];if(e)return e.touch(),e.value}set(e,t){var r=this._items[e];r?r.value=t:(this._size>=this._maxSize&&this._prune(),this._items[e]=new q(e,t),this._size+=1)}delete(e){this._items[e]&&(delete this._items[e],--this._size)}_prune(){var e;for(e of _.default(this._items).toArray().sortBy("timestamp").take(this._pruningSize).value())this.delete(e.key)}}(1e3),r={};function p(e){return e&&e.toString().replace(/[\x00-\x1f\\.$#[\]\x7f/]/g,e=>"\\"+_.default.padStart(e.charCodeAt(0).toString(16),2,"0"))}function d(e){return e&&e.toString().replace(/\\[0-9a-f]{2}/gi,e=>String.fromCharCode(parseInt(e.slice(1),16)))}function f(e){if(!_.default.isObject(e)||!Object.isExtensible(e))return e;let t=e;for(var r in e){var s,i,a;Object.hasOwn(e,r)&&(s=e[r],i=p(r),a=f(s),i===r&&a===s||((t=t===e?_.default.clone(e):t)[i]=a,t[r]===s&&delete t[r]))}return t}function m(){var e,t=[];for(e of arguments)"/"===(e=_.default.isString(e)?e:""+e).charAt(0)&&t.splice(0,t.length),t.push(e);return"/"===t[0]&&(t[0]=""),t.join("/")}function g(e,t){var r=(t?"esc:":"")+e;let s=F.get(r);return s||(s=e.split("/"),t||(s=_.default.map(s,d)),F.set(r,s)),s}class V{constructor(e){this.variables=[];var t=_.default.endsWith(e,"/$*"),r=(e=t?e.slice(0,-3):e).replace(/\/\$[^/]*/g,e=>(1<e.length&&this.variables.push(e.slice(1)),"
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o.error;return o},set(e){if(l)o=e;else{if(!a.set)throw new Error("You cannot set a computed property: "+a.name);a.set.call(this,e)}}}}destroyObject(e){Object.defineProperty(e,"$destroyed",{value:!0,enumerable:!1,configurable:!1})}emitLifecycleHook(e,t){_.default.isFunction(e[t])&&e[t](),e.$emit("hook:"+t)}isPlaceholder(e){e=this._getMount(e);return e&&e.placeholder}isLocal(e,t){e=this._getMount(e,!1,e=>e.local);if(e&&e.local)return!0;if(this._hasLocalProperties(e,t))throw new Error("Write on a mix of local and remote tree paths.");return!1}_hasLocalProperties(e,t){if(e){if(e.local)return!0;if(e.localDescendants&&_.default.isObject(t))for(var r in t)if(this._hasLocalProperties(e.children[p(r)]||e.children.$,t[r]))return!0}return!1}forEachPlaceholderChild(e,t){e=this._getMount(e);_.default.forEach(e&&e.children,e=>{e.placeholder&&t(e)})}checkVueObject(i,e,t){t||(t=new Set);var r=new Map;let s=this._findMount(e=>e.Class===i.constructor);var a,n,o,h,l,u,c,d=_.default(i).thru(Object.getOwnPropertyNames).reject(e=>se[e]||Object.hasOwn(R.prototype,e)||/^\$_/.test(e)).reject(e=>s&&s.matcher&&_.default.includes(s.matcher.variables,e)).map(e=>{let t;try{if((t=i[e])instanceof RegExp)return}catch{return}var r=Object.getOwnPropertyDescriptor(i,e),s=!r.enumerable&&r.set&&!Object.hasOwn(i,"$_"+e);return{key:e,value:t,descriptor:r,computed:s}}).compact().value();for({key:a,value:n,descriptor:o,computed:h}of d){if(!_.default.isArray(i)||!/^\d+$/.test(a)&&"length"!==a){if("value"in o||!o.get)throw new Error(`Value at ${e}, contained in a Firetruss object, has a rogue property: `+a);if(i.$truss&&o.enumerable)try{throw i[a]=n,new Error(`Firetruss object at ${e} has an enumerable non-Firebase property: `+a)}catch(e){if("firebase_overwrite"!==e.trussCode)throw e}}_.default.isObject(n)&&(t.has(n)||Object.isSealed(n)||_.default.isFunction(n)||_.default.isElement(n)||n instanceof Promise||(t.add(n),this.checkVueObject(n,m(e,p(a)),t)),h||n.$truss||r.set(n,a))}for({key:l,value:u,computed:c}of d)if(c&&_.default.isObject(u)&&!u.$truss){var f=r.get(u);if(f)throw new Error(`Firetruss object at ${e} has properties ${l} `+`and ${f} with an aliased value`)}}}class le{constructor(e,t){this._coupler=e,this._query=t,this._listeners=[],this._keys=[],this._coupler._url.pathname=encodeURI(t.path),this._url=this._coupler._url.toString(),this._segments=g(t.path,!0),this._listening=!1,this.ready=!1}attach(e,t){this._listen(),this._listeners.push({operation:e,keysCallback:t}),this.ready&&(this._coupler._dispatcher.markReady(e),t)&&t(this._keys)}detach(e){e=_.default.findIndex(this._listeners,{operation:e});return 0<=e&&this._listeners.splice(e,1),this._listeners.length}_listen(){this._listening||(this._coupler._bridge.on(this._query.toString(),this._url,this._query.constraints,"value",this._handleSnapshot,this._handleError,this,{sync:!0}),this._listening=!0)}destroy(){this._coupler._bridge.off(this._query.toString(),this._url,this._query.constraints,"value",this._handleSnapshot,this),this._listening=!1,this.ready=!1,c.digest();for(var e of this._keys)this._coupler._decoupleSegments(this._segments.concat(e))}_handleSnapshot(s){this._coupler._queueSnapshotCallback(()=>{if(this._listeners.length&&this._listening){var e=this._updateKeysAndApplySnapshot(s);if(!this.ready){this.ready=!0,c.digest();for(var t of this._listeners)this._coupler._dispatcher.markReady(t.operation)}if(e)for(var r of this._listeners)r.keysCallback&&r.keysCallback(e)}})}_updateKeysAndApplySnapshot(e){let t;if(e.path===this._query.path){if((t=_.default.keys(e.value)).sort(),_.default.isEqual(this._keys,t))t=null;else{for(var r of _.default.difference(t,this._keys))this._coupler._coupleSegments(this._segments.concat(r));for(var s of _.default.difference(this._keys,t))this._coupler._decoupleSegments(this._segments.concat(s));this._keys=t}if(e.exists){var i,a=e.value,n=e.path;for(i of this._keys)e._path=n+"/"+i,e._key=void 0,e._value=a[i],this._coupler._applySnapshot(e);e._path=n,e._key=void 0,e._value=a}}else{var o;e.path.replace(/\/[^/]+/,"")===this._query.path&&(o=_.default.includes(this._keys,e.key),e.value?o||(this._coupler._coupleSegments(this._segments.concat(e.key)),this._keys.push(e.key),this._keys.sort(),t=this._keys):o&&(this._coupler._decoupleSegments(this._segments.concat(e.key)),_.default.pull(this._keys,e.key),this._keys.sort(),t=this._keys),this._coupler._applySnapshot(e))}return t}_handleError(r){if(this._listeners.length&&this._listening){this._listening=!1,this.ready=!1;for(var e of this._keys)this._coupler._decoupleSegments(this._segments.concat(e));this._keys=[],c.digest(),Promise.all(_.default.map(this._listeners,t=>(this._coupler._dispatcher.clearReady(t.operation),this._coupler._dispatcher.retry(t.operation,r).catch(e=>(t.operation._disconnect(e),!1))))).then(e=>{if(_.default.some(e))this._listeners.length&&this._listen();else for(var t of this._listeners)t.operation._disconnect(r)})}}}class ue{constructor(e,t,r){this._coupler=e,this.path=t,this.parent=r,this._coupler._url.pathname=encodeURI(t),this.url=this._coupler._url.toString(),this.operations=[],this.queryCount=0,this.listening=!1,this.ready=!1,this.children={}}get active(){return this.count||this.queryCount}get count(){return this.operations.length}listen(e){!e&&this.count?this.listening||(_.default.forEach(this.operations,e=>{this._coupler._dispatcher.clearReady(e)}),this._coupler._bridge.on(this.url,this.url,null,"value",this._handleSnapshot,this._handleError,this,{sync:!0}),this.listening=!0):_.default.forEach(this.children,e=>{e.listen()})}unlisten(e){!e&&this.listening?(this._coupler._bridge.off(this.url,this.url,null,"value",this._handleSnapshot,this),this.listening=!1,this._forAllDescendants(e=>{if(e.listening)return!1;e.ready&&(e.ready=!1,c.digest())})):_.default.forEach(this.children,e=>{e.unlisten()})}_handleSnapshot(e){this._coupler._queueSnapshotCallback(()=>{this.listening&&this._coupler.isTrunkCoupled(e.path)&&(this._coupler._applySnapshot(e),this.ready||e.path!==this.path||(this.ready=!0,c.digest(),this.unlisten(!0),this._forAllDescendants(e=>{for(var t of e.operations)this._coupler._dispatcher.markReady(t)})))})}_handleError(r){if(this.count&&this.listening)return this.listening=!1,this._forAllDescendants(e=>{if(e.listening)return!1;e.ready&&(e.ready=!1,c.digest());for(var t of e.operations)this._coupler._dispatcher.clearReady(t)}),this._coupler._prunePath(this.path),Promise.all(_.default.map(this.operations,t=>this._coupler._dispatcher.retry(t,r).catch(e=>(t._disconnect(e),!1)))).then(e=>{if(_.default.some(e))this.count&&this.listen();else for(var t of this.operations)t._disconnect(r)})}_forAllDescendants(t){!1!==t(this)&&_.default.forEach(this.children,e=>e._forAllDescendants(t))}collectCoupledDescendantPaths(t){return(t=t||{})[this.path]=this.active,this.active||_.default.forEach(this.children,e=>{e.collectCoupledDescendantPaths(t)}),t}}class ce{constructor(e,t,r,s,i){this._url=new URL(e),this._bridge=t,this._dispatcher=r,this._applySnapshot=s,this._pendingSnapshotCallbacks=[],this._throttled={processPendingSnapshots:this._processPendingSnapshots},this._prunePath=i,this._vue=new u.default({data:{root:void 0,queryHandlers:{}}}),this._vue._renderProxy=this._vue,this._nodeIndex=Object.create(null),Object.freeze(this),this._vue.$data.root=new ue(this,"/"),this._nodeIndex["/"]=this._root}get _root(){return this._vue.$data.root}get _queryHandlers(){return this._vue.$data.queryHandlers}destroy(){_.default.forEach(this._queryHandlers,e=>{e.destroy()}),this._root.unlisten(),this._vue.$destroy()}couple(e,t){return this._coupleSegments(g(e,!0),t)}_coupleSegments(e,t){let r,s=!t,i=!1;for(var a of e){let e=a?r.children&&r.children[a]:this._root;e||(e=new ue(this,`${"/"===r.path?"":r.path}/`+a,r),u.default.set(r.children,a,e),this._nodeIndex[e.path]=e),s=s||e.listening,i=i||e.ready,r=e}t?r.operations.push(t):r.queryCount++,s?t&&i&&this._dispatcher.markReady(t):r.listen()}decouple(e,t){return this._decoupleSegments(g(e,!0),t)}_decoupleSegments(t,e){var r,s=[];let i;for(r of t){if(!(i=r?i.children&&i.children[r]:this._root))break;s.push(i)}if(!i||!(e?i.count:i.queryCount))throw new Error("Path not coupled: "+(t.join("/")||"/"));if(e?_.default.pull(i.operations,e):i.queryCount--,e&&!i.count&&(i.listen(),i.listening)&&i.unlisten(),!i.active){for(let e=s.length-1;0<e&&((i=s[e])!==this._root&&!i.active&&_.default.isEmpty(i.children));e--)u.default.delete(s[e-1].children,t[e]),i.ready=void 0,delete this._nodeIndex[i.path];e=t.join("/")||"/";this._prunePath(e,this.findCoupledDescendantPaths(e))}}subscribe(e,t,r){let s=this._queryHandlers[e.toString()];s||(s=new le(this,e),u.default.set(this._queryHandlers,e.toString(),s)),s.attach(t,r)}unsubscribe(e,t){var r=this._queryHandlers[e.toString()];r&&!r.detach(t)&&(r.destroy(),u.default.delete(this._queryHandlers,e.toString()))}isTrunkCoupled(e){var t;let r;for(t of g(e,!0)){if(!(r=t?r.children&&r.children[t]:this._root))return!1;if(r.active)return!0}return!1}findCoupledDescendantPaths(e){let t;for(var r of g(e,!0)){if((t=r?t.children&&t.children[r]:this._root)&&t.active)return{[e]:t.active};if(!t)break}return t&&t.collectCoupledDescendantPaths()}isSubtreeReady(e){let t,r;function s(e){return r=e.slice(1),""}for(;!(t=this._nodeIndex[e]);)e=e.replace(/\/[^/]*$/,s)||"/";for(r&&t.children;t;){if(t.ready)return!0;t=t.parent}return!1}isQueryReady(e){e=this._queryHandlers[e.toString()];return e&&e.ready}_queueSnapshotCallback(e){this._pendingSnapshotCallbacks.push(e),this._throttled.processPendingSnapshots.call(this)}_processPendingSnapshots(){for(var e of this._pendingSnapshotCallbacks)e();this._pendingSnapshotCallbacks.splice(0,1/0)}throttleSnapshots(e){this._throttled.processPendingSnapshots=e?_.default.debounce(_.default.throttle(this._processPendingSnapshots,e)):this._processPendingSnapshots}}class de{constructor(e){this._ref=e,this._outcome=void 0,this._values=void 0}get currentValue(){return this._ref.value}get outcome(){return this._outcome}get values(){return this._values}_setOutcome(e){if(this._outcome)throw new Error("Transaction already resolved with "+this._outcome);this._outcome=e}abort(){this._setOutcome("abort")}cancel(){this._setOutcome("cancel")}set(e){if(void 0===e)throw new Error("Invalid argument: undefined");this._setOutcome("set"),this._values={"":e}}update(e){if(void 0===e)throw new Error("Invalid argument: undefined");if(_.default.isEmpty(e))return this.cancel();this._setOutcome("update"),this._values=e}}class fe{constructor(e,t,r,s){this._truss=e,this._url=new URL(t),this._bridge=r,this._dispatcher=s,this._firebasePropertyEditAllowed=!1,this._writeSerial=0,this._localWrites={},this._localWriteTimestamp=null,this._initialized=!1,this._vue=new u.default({data:{$root:void 0}}),this._modeler=new he(this._vue,"dev"===e.constructor.VERSION),this._coupler=new ce(t,r,s,this._integrateSnapshot.bind(this),this._prune.bind(this)),Object.seal(this)}get root(){return this._vue.$data.$root||(this._vue.$data.$root=this._createObject("/"),this._fixObject(this._vue.$data.$root),this._completeCreateObject(this._vue.$data.$root),c.digest()),this._vue.$data.$root}get truss(){return this._truss}init(e){if(this._initialized)throw new Error("Data objects already created, too late to mount classes");this._initialized=!0,this._modeler.init(e,!this._vue.$data.$root);var t,e=[];this._plantPlaceholders(this.root,"/",void 0,e);for(t of e)this._completeCreateObject(t)}destroy(){this._coupler.destroy(),this._modeler&&this._modeler.destroy(),this._vue.$destroy()}connectReference(e,t){this._checkHandle(e);let r=this._dispatcher.createOperation("read",t,e);return r._disconnect=this._disconnectReference.bind(this,e,r,void 0),this._dispatcher.begin(r).then(()=>{r.running&&!r._disconnected&&(this._coupler.couple(e.path,r),r._coupled=!0)}).catch(_.default.noop),r._disconnect}_disconnectReference(e,t,r,s){t._disconnected||(t._disconnected=!0,r&&r(),t._coupled&&(this._coupler.decouple(e.path,t),t._coupled=!1),this._dispatcher.end(t,s).catch(_.default.noop))}isReferenceReady(e){return this._checkHandle(e),this._coupler.isSubtreeReady(e.path)}connectQuery(e,t,r){this._checkHandle(e);let s=this._dispatcher.createOperation("read",r,e);return s._disconnect=this._disconnectQuery.bind(this,e,s),this._dispatcher.begin(s).then(()=>{s.running&&!s._disconnected&&(this._coupler.subscribe(e,s,t),s._coupled=!0)}).catch(_.default.noop),s._disconnect}_disconnectQuery(e,t,r){t._disconnected||(t.