/* * Copyright (C) 2023 Yomitan Authors * Copyright (C) 2021-2022 Yomichan Authors * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <https://www.gnu.org/licenses/>. */ import {ExtensionError} from '../core/extension-error.js'; import {DictionaryDatabase} from './dictionary-database.js'; import {DictionaryImporter} from './dictionary-importer.js'; import {DictionaryWorkerMediaLoader} from './dictionary-worker-media-loader.js'; export class DictionaryWorkerHandler { constructor() { /** @type {DictionaryWorkerMediaLoader} */ this._mediaLoader = new DictionaryWorkerMediaLoader(); } /** */ prepare() { self.addEventListener('message', this._onMessage.bind(this), false); } // Private /** * @param {MessageEvent<import('dictionary-worker-handler').Message>} event */ _onMessage(event) { const {action, params} = event.data; switch (action) { case 'importDictionary': this._onMessageWithProgress(params, this._importDictionary.bind(this)); break; case 'deleteDictionary': this._onMessageWithProgress(params, this._deleteDictionary.bind(this)); break; case 'getDictionaryCounts': this._onMessageWithProgress(params, this._getDictionaryCounts.bind(this)); break; case 'getImageDetails.response': this._mediaLoader.handleMessage(params); break; } } /** * @template [T=unknown] * @param {T} params * @param {(details: T, onProgress: import('dictionary-worker-handler').OnProgressCallback) => Promise<unknown>} handler */ async _onMessageWithProgress(params, handler) { /** * @param {...unknown} args */ const onProgress = (...args) => { self.postMessage({ action: 'progress', params: {args} }); }; let response; try { const result = await handler(params, onProgress); response = {result}; } catch (e) { response = {error: ExtensionError.serialize(e)}; } self.postMessage({action: 'complete', params: response}); } /** * @param {import('dictionary-worker-handler').ImportDictionaryMessageParams} details * @param {import('dictionary-worker-handler').OnProgressCallback} onProgress * @returns {Promise<import('dictionary-worker').MessageCompleteResultSerialized>} */ async _importDictionary({details, archiveContent}, onProgress) { const dictionaryDatabase = await this._getPreparedDictionaryDatabase(); try { const dictionaryImporter = new DictionaryImporter(this._mediaLoader, onProgress); const {result, errors} = await dictionaryImporter.importDictionary(dictionaryDatabase, archiveContent, details); return { result, errors: errors.map((error) => ExtensionError.serialize(error)) }; } finally { dictionaryDatabase.close(); } } /** * @param {import('dictionary-worker-handler').DeleteDictionaryMessageParams} details * @param {import('dictionary-database').DeleteDictionaryProgressCallback} onProgress * @returns {Promise<void>} */ async _deleteDictionary({dictionaryTitle}, onProgress) { const dictionaryDatabase = await this._getPreparedDictionaryDatabase(); try { return await dictionaryDatabase.deleteDictionary(dictionaryTitle, 1000, onProgress); } finally { dictionaryDatabase.close(); } } /** * @param {import('dictionary-worker-handler').GetDictionaryCountsMessageParams} details * @returns {Promise<import('dictionary-database').DictionaryCounts>} */ async _getDictionaryCounts({dictionaryNames, getTotal}) { const dictionaryDatabase = await this._getPreparedDictionaryDatabase(); try { return await dictionaryDatabase.getDictionaryCounts(dictionaryNames, getTotal); } finally { dictionaryDatabase.close(); } } /** * @returns {Promise<DictionaryDatabase>} */ async _getPreparedDictionaryDatabase() { const dictionaryDatabase = new DictionaryDatabase(); await dictionaryDatabase.prepare(); return dictionaryDatabase; } }