yomichan/ext/bg/js/anki-note-builder.js
toasted-nutbread cae6b657ab
Anki audio download (#477)
* Update how audio is added to Anki cards

* Upgrade Anki templates

* Update comments
2020-05-02 12:50:16 -04:00

169 lines
5.9 KiB
JavaScript

/*
* Copyright (C) 2020 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/>.
*/
class AnkiNoteBuilder {
constructor({anki, audioSystem, renderTemplate}) {
this._anki = anki;
this._audioSystem = audioSystem;
this._renderTemplate = renderTemplate;
}
async createNote(definition, mode, context, options, templates) {
const isKanji = (mode === 'kanji');
const tags = options.anki.tags;
const modeOptions = isKanji ? options.anki.kanji : options.anki.terms;
const modeOptionsFieldEntries = Object.entries(modeOptions.fields);
const note = {
fields: {},
tags,
deckName: modeOptions.deck,
modelName: modeOptions.model,
options: {
duplicateScope: options.anki.duplicateScope
}
};
for (const [fieldName, fieldValue] of modeOptionsFieldEntries) {
note.fields[fieldName] = await this.formatField(fieldValue, definition, mode, context, options, templates, null);
}
return note;
}
async formatField(field, definition, mode, context, options, templates, errors=null) {
const data = {
marker: null,
definition,
group: options.general.resultOutputMode === 'group',
merge: options.general.resultOutputMode === 'merge',
modeTermKanji: mode === 'term-kanji',
modeTermKana: mode === 'term-kana',
modeKanji: mode === 'kanji',
compactGlossaries: options.general.compactGlossaries,
context
};
const pattern = /\{([\w-]+)\}/g;
return await AnkiNoteBuilder.stringReplaceAsync(field, pattern, async (g0, marker) => {
data.marker = marker;
try {
return await this._renderTemplate(templates, data);
} catch (e) {
if (errors) { errors.push(e); }
return `{${marker}-render-error}`;
}
});
}
async injectAudio(definition, fields, sources, customSourceUrl) {
if (!this._containsMarker(fields, 'audio')) { return; }
try {
const expressions = definition.expressions;
const audioSourceDefinition = Array.isArray(expressions) ? expressions[0] : definition;
const filename = this._createInjectedAudioFileName(audioSourceDefinition);
if (filename === null) { return; }
const {audio} = await this._audioSystem.getDefinitionAudio(
audioSourceDefinition,
sources,
{
textToSpeechVoice: null,
customSourceUrl,
binary: true,
disableCache: true
}
);
const data = AnkiNoteBuilder.arrayBufferToBase64(audio);
await this._anki.storeMediaFile(filename, data);
definition.audioFileName = filename;
} catch (e) {
// NOP
}
}
async injectScreenshot(definition, fields, screenshot) {
if (!this._containsMarker(fields, 'screenshot')) { return; }
const now = new Date(Date.now());
const filename = `yomichan_browser_screenshot_${definition.reading}_${this._dateToString(now)}.${screenshot.format}`;
const data = screenshot.dataUrl.replace(/^data:[\w\W]*?,/, '');
try {
await this._anki.storeMediaFile(filename, data);
} catch (e) {
return;
}
definition.screenshotFileName = filename;
}
_createInjectedAudioFileName(definition) {
const {reading, expression} = definition;
if (!reading && !expression) { return null; }
let filename = 'yomichan';
if (reading) { filename += `_${reading}`; }
if (expression) { filename += `_${expression}`; }
filename += '.mp3';
filename = filename.replace(/\]/g, '');
return filename;
}
_dateToString(date) {
const year = date.getUTCFullYear();
const month = date.getUTCMonth().toString().padStart(2, '0');
const day = date.getUTCDate().toString().padStart(2, '0');
const hours = date.getUTCHours().toString().padStart(2, '0');
const minutes = date.getUTCMinutes().toString().padStart(2, '0');
const seconds = date.getUTCSeconds().toString().padStart(2, '0');
return `${year}-${month}-${day}-${hours}-${minutes}-${seconds}`;
}
_containsMarker(fields, marker) {
marker = `{${marker}}`;
for (const fieldValue of Object.values(fields)) {
if (fieldValue.includes(marker)) {
return true;
}
}
return false;
}
static arrayBufferToBase64(arrayBuffer) {
return window.btoa(String.fromCharCode(...new Uint8Array(arrayBuffer)));
}
static stringReplaceAsync(str, regex, replacer) {
let match;
let index = 0;
const parts = [];
while ((match = regex.exec(str)) !== null) {
parts.push(str.substring(index, match.index), replacer(...match, match.index, str));
index = regex.lastIndex;
}
if (parts.length === 0) {
return Promise.resolve(str);
}
parts.push(str.substring(index));
return Promise.all(parts).then((v) => v.join(''));
}
}