/* * Copyright (C) 2016 Alex Yatskov <alex@foosoft.net> * Author: Alex Yatskov <alex@foosoft.net> * * 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 <http://www.gnu.org/licenses/>. */ class AnkiConnect { constructor(server) { this.server = server; this.asyncPools = {}; this.localVersion = 1; this.remoteVersion = null; } addNote(note) { return this.checkVersion().then(() => this.ankiInvoke('addNote', {note}, null)); } canAddNotes(notes) { return this.checkVersion().then(() => this.ankiInvoke('canAddNotes', {notes}, 'notes')); } getDeckNames() { return this.checkVersion().then(() => this.ankiInvoke('deckNames', {}, null)); } getModelNames() { return this.checkVersion().then(() => this.ankiInvoke('modelNames', {}, null)); } getModelFieldNames(modelName) { return this.checkVersion().then(() => this.ankiInvoke('modelFieldNames', {modelName}, null)); } checkVersion() { if (this.localVersion === this.remoteVersion) { return Promise.resolve(true); } return this.ankiInvoke('version', {}, null).then(version => { this.remoteVersion = version; if (this.remoteVersion < this.localVersion) { return Promise.reject('extension and plugin versions incompatible'); } }); } ankiInvoke(action, params, pool) { return new Promise((resolve, reject) => { if (pool !== null && this.asyncPools.hasOwnProperty(pool)) { this.asyncPools[pool].abort(); } const xhr = new XMLHttpRequest(); xhr.addEventListener('loadend', () => { if (pool !== null) { delete this.asyncPools[pool]; } if (xhr.responseText) { resolve(JSON.parse(xhr.responseText)); } else { reject('unable to connect to plugin'); } }); xhr.open('POST', this.server); xhr.send(JSON.stringify({action, params})); }); } }