yomichan/ext/bg/js/database.js

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/*
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* Copyright (C) 2016-2017 Alex Yatskov <alex@foosoft.net>
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* 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/>.
*/
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class Database {
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constructor() {
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this.db = null;
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this.tagCache = {};
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}
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async prepare() {
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if (this.db) {
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throw 'Database already initialized';
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}
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this.db = new Dexie('dict');
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this.db.version(2).stores({
terms: '++id,dictionary,expression,reading',
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kanji: '++,dictionary,character',
tagMeta: '++,dictionary',
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dictionaries: '++,title,version'
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});
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this.db.version(3).stores({
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termMeta: '++,dictionary,expression',
kanjiMeta: '++,dictionary,character',
tagMeta: '++,dictionary,name'
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});
this.db.version(4).stores({
terms: '++id,dictionary,expression,reading,sequence'
});
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await this.db.open();
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}
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async purge() {
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if (!this.db) {
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throw 'Database not initialized';
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}
this.db.close();
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await this.db.delete();
this.db = null;
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this.tagCache = {};
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await this.prepare();
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}
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async findTerms(term, titles) {
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if (!this.db) {
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throw 'Database not initialized';
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}
const results = [];
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await this.db.terms.where('expression').equals(term).or('reading').equals(term).each(row => {
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if (titles.includes(row.dictionary)) {
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results.push({
expression: row.expression,
reading: row.reading,
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definitionTags: dictFieldSplit(row.definitionTags || row.tags || ''),
termTags: dictFieldSplit(row.termTags || ''),
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rules: dictFieldSplit(row.rules),
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glossary: row.glossary,
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score: row.score,
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dictionary: row.dictionary,
id: row.id,
sequence: typeof row.sequence === 'undefined' ? -1 : row.sequence
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});
}
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});
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return results;
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}
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async findTermsExact(term, reading, titles) {
if (!this.db) {
throw 'Database not initialized';
}
const results = [];
await this.db.terms.where('expression').equals(term).each(row => {
if (row.reading === reading && titles.includes(row.dictionary)) {
results.push({
expression: row.expression,
reading: row.reading,
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definitionTags: dictFieldSplit(row.definitionTags || row.tags || ''),
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termTags: dictFieldSplit(row.termTags || ''),
rules: dictFieldSplit(row.rules),
glossary: row.glossary,
score: row.score,
dictionary: row.dictionary,
id: row.id,
sequence: typeof row.sequence === 'undefined' ? -1 : row.sequence
});
}
});
return results;
}
async findTermsBySequence(sequence, mainDictionary) {
if (!this.db) {
throw 'Database not initialized';
}
const results = [];
await this.db.terms.where('sequence').equals(sequence).each(row => {
if (row.dictionary === mainDictionary) {
results.push({
expression: row.expression,
reading: row.reading,
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definitionTags: dictFieldSplit(row.definitionTags || row.tags || ''),
termTags: dictFieldSplit(row.termTags || ''),
rules: dictFieldSplit(row.rules),
glossary: row.glossary,
score: row.score,
dictionary: row.dictionary,
id: row.id,
sequence: typeof row.sequence === 'undefined' ? -1 : row.sequence
});
}
});
return results;
}
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async findTermMeta(term, titles) {
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if (!this.db) {
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throw 'Database not initialized';
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}
const results = [];
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await this.db.termMeta.where('expression').equals(term).each(row => {
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if (titles.includes(row.dictionary)) {
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results.push({
mode: row.mode,
data: row.data,
dictionary: row.dictionary
});
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}
});
return results;
}
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async findKanji(kanji, titles) {
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if (!this.db) {
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throw 'Database not initialized';
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}
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const results = [];
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await this.db.kanji.where('character').equals(kanji).each(row => {
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if (titles.includes(row.dictionary)) {
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results.push({
character: row.character,
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onyomi: dictFieldSplit(row.onyomi),
kunyomi: dictFieldSplit(row.kunyomi),
tags: dictFieldSplit(row.tags),
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glossary: row.meanings,
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stats: row.stats,
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dictionary: row.dictionary
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});
}
});
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return results;
}
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async findKanjiMeta(kanji, titles) {
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if (!this.db) {
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throw 'Database not initialized';
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}
const results = [];
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await this.db.kanjiMeta.where('character').equals(kanji).each(row => {
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if (titles.includes(row.dictionary)) {
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results.push({
mode: row.mode,
data: row.data,
dictionary: row.dictionary
});
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}
});
return results;
}
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async findTagForTitle(name, title) {
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if (!this.db) {
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throw 'Database not initialized';
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}
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this.tagCache[title] = this.tagCache[title] || {};
let result = this.tagCache[title][name];
if (!result) {
await this.db.tagMeta.where('name').equals(name).each(row => {
if (title === row.dictionary) {
result = row;
}
});
this.tagCache[title][name] = result;
}
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return result;
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}
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async summarize() {
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if (this.db) {
return this.db.dictionaries.toArray();
} else {
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throw 'Database not initialized';
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}
}
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async importDictionary(archive, callback) {
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if (!this.db) {
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throw 'Database not initialized';
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}
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const indexDataLoaded = async summary => {
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if (summary.version > 3) {
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throw 'Unsupported dictionary version';
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}
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const count = await this.db.dictionaries.where('title').equals(summary.title).count();
if (count > 0) {
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throw 'Dictionary is already imported';
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}
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await this.db.dictionaries.add(summary);
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};
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const termDataLoaded = async (summary, entries, total, current) => {
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if (callback) {
callback(total, current);
}
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const rows = [];
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if (summary.version === 1) {
for (const [expression, reading, definitionTags, rules, score, ...glossary] of entries) {
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rows.push({
expression,
reading,
definitionTags,
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rules,
score,
glossary,
dictionary: summary.title
});
}
} else {
for (const [expression, reading, definitionTags, rules, score, glossary, sequence, termTags] of entries) {
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rows.push({
expression,
reading,
definitionTags,
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rules,
score,
glossary,
sequence,
termTags,
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dictionary: summary.title
});
}
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}
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await this.db.terms.bulkAdd(rows);
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};
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const termMetaDataLoaded = async (summary, entries, total, current) => {
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if (callback) {
callback(total, current);
}
const rows = [];
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for (const [expression, mode, data] of entries) {
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rows.push({
expression,
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mode,
data,
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dictionary: summary.title
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});
}
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await this.db.termMeta.bulkAdd(rows);
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};
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const kanjiDataLoaded = async (summary, entries, total, current) => {
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if (callback) {
callback(total, current);
}
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const rows = [];
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if (summary.version === 1) {
for (const [character, onyomi, kunyomi, tags, ...meanings] of entries) {
rows.push({
character,
onyomi,
kunyomi,
tags,
meanings,
dictionary: summary.title
});
}
} else {
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for (const [character, onyomi, kunyomi, tags, meanings, stats] of entries) {
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rows.push({
character,
onyomi,
kunyomi,
tags,
meanings,
stats,
dictionary: summary.title
});
}
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}
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await this.db.kanji.bulkAdd(rows);
};
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const kanjiMetaDataLoaded = async (summary, entries, total, current) => {
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if (callback) {
callback(total, current);
}
const rows = [];
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for (const [character, mode, data] of entries) {
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rows.push({
character,
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mode,
data,
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dictionary: summary.title
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});
}
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await this.db.kanjiMeta.bulkAdd(rows);
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};
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const tagDataLoaded = async (summary, entries, total, current) => {
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if (callback) {
callback(total, current);
}
const rows = [];
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for (const [name, category, order, notes, score] of entries) {
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const row = dictTagSanitize({
name,
category,
order,
notes,
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score,
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dictionary: summary.title
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});
rows.push(row);
}
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await this.db.tagMeta.bulkAdd(rows);
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};
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return await Database.importDictionaryZip(
archive,
indexDataLoaded,
termDataLoaded,
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termMetaDataLoaded,
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kanjiDataLoaded,
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kanjiMetaDataLoaded,
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tagDataLoaded
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);
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}
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static async importDictionaryZip(
archive,
indexDataLoaded,
termDataLoaded,
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termMetaDataLoaded,
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kanjiDataLoaded,
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kanjiMetaDataLoaded,
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tagDataLoaded
) {
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const zip = await JSZip.loadAsync(archive);
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const indexFile = zip.files['index.json'];
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if (!indexFile) {
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throw 'No dictionary index found in archive';
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}
const index = JSON.parse(await indexFile.async('string'));
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if (!index.title || !index.revision) {
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throw 'Unrecognized dictionary format';
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}
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const summary = {
title: index.title,
revision: index.revision,
sequenced: index.sequenced,
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version: index.format || index.version
};
await indexDataLoaded(summary);
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const buildTermBankName = index => `term_bank_${index + 1}.json`;
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const buildTermMetaBankName = index => `term_meta_bank_${index + 1}.json`;
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const buildKanjiBankName = index => `kanji_bank_${index + 1}.json`;
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const buildKanjiMetaBankName = index => `kanji_meta_bank_${index + 1}.json`;
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const buildTagBankName = index => `tag_bank_${index + 1}.json`;
const countBanks = namer => {
let count = 0;
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while (zip.files[namer(count)]) {
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++count;
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}
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return count;
};
const termBankCount = countBanks(buildTermBankName);
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const termMetaBankCount = countBanks(buildTermMetaBankName);
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const kanjiBankCount = countBanks(buildKanjiBankName);
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const kanjiMetaBankCount = countBanks(buildKanjiMetaBankName);
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const tagBankCount = countBanks(buildTagBankName);
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let bankLoadedCount = 0;
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let bankTotalCount =
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termBankCount +
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termMetaBankCount +
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kanjiBankCount +
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kanjiMetaBankCount +
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tagBankCount;
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if (tagDataLoaded && index.tagMeta) {
const bank = [];
for (const name in index.tagMeta) {
const tag = index.tagMeta[name];
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bank.push([name, tag.category, tag.order, tag.notes, tag.score]);
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}
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tagDataLoaded(summary, bank, ++bankTotalCount, bankLoadedCount++);
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}
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const loadBank = async (summary, namer, count, callback) => {
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if (callback) {
for (let i = 0; i < count; ++i) {
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const bankFile = zip.files[namer(i)];
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const bank = JSON.parse(await bankFile.async('string'));
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await callback(summary, bank, bankTotalCount, bankLoadedCount++);
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}
}
};
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await loadBank(summary, buildTermBankName, termBankCount, termDataLoaded);
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await loadBank(summary, buildTermMetaBankName, termMetaBankCount, termMetaDataLoaded);
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await loadBank(summary, buildKanjiBankName, kanjiBankCount, kanjiDataLoaded);
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await loadBank(summary, buildKanjiMetaBankName, kanjiMetaBankCount, kanjiMetaDataLoaded);
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await loadBank(summary, buildTagBankName, tagBankCount, tagDataLoaded);
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return summary;
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}
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}