74 lines
2.3 KiB
JavaScript
74 lines
2.3 KiB
JavaScript
/*
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Copyright 2020 Bruno Windels <bruno@windels.cloud>
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import {RoomTimelineStore} from "./stores/RoomTimelineStore.js";
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export class Transaction {
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constructor(storeValues, writable) {
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this._storeValues = storeValues;
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this._txnStoreValues = {};
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this._writable = writable;
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}
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_store(name, mapper) {
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if (!this._txnStoreValues.hasOwnProperty(name)) {
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if (!this._storeValues.hasOwnProperty(name)) {
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throw new Error(`Transaction wasn't opened for store ${name}`);
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}
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const store = mapper(this._storeValues[name]);
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const clone = store.cloneStoreValue();
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// extra prevention for writing
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if (!this._writable) {
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Object.freeze(clone);
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}
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this._txnStoreValues[name] = clone;
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}
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return mapper(this._txnStoreValues[name]);
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}
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get session() {
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throw new Error("not yet implemented");
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// return this._store("session", storeValue => new SessionStore(storeValue));
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}
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get roomSummary() {
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throw new Error("not yet implemented");
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// return this._store("roomSummary", storeValue => new RoomSummaryStore(storeValue));
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}
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get roomTimeline() {
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return this._store("roomTimeline", storeValue => new RoomTimelineStore(storeValue));
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}
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get roomState() {
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throw new Error("not yet implemented");
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// return this._store("roomState", storeValue => new RoomStateStore(storeValue));
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}
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complete() {
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for(let name of Object.keys(this._txnStoreValues)) {
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this._storeValues[name] = this._txnStoreValues[name];
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}
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this._txnStoreValues = null;
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return Promise.resolve();
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}
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abort() {
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this._txnStoreValues = null;
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return Promise.resolve();
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}
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}
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