235 lines
7.4 KiB
JavaScript
235 lines
7.4 KiB
JavaScript
/*
|
|
* 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 Database {
|
|
constructor() {
|
|
this.db = null;
|
|
this.dbVersion = 2;
|
|
this.tagMetaCache = {};
|
|
}
|
|
|
|
sanitize() {
|
|
const db = new Dexie('dict');
|
|
return db.open().then(() => {
|
|
db.close();
|
|
if (db.verno !== this.dbVersion) {
|
|
return db.delete();
|
|
}
|
|
}).catch(() => {});
|
|
}
|
|
|
|
prepare() {
|
|
if (this.db !== null) {
|
|
return Promise.reject('database already initialized');
|
|
}
|
|
|
|
return this.sanitize().then(() => {
|
|
this.db = new Dexie('dict');
|
|
this.db.version(this.dbVersion).stores({
|
|
terms: '++id,dictionary,expression,reading',
|
|
kanji: '++,dictionary,character',
|
|
tagMeta: '++,dictionary',
|
|
dictionaries: '++,title,version'
|
|
});
|
|
|
|
return this.db.open();
|
|
});
|
|
}
|
|
|
|
purge() {
|
|
if (this.db === null) {
|
|
return Promise.reject('database not initialized');
|
|
}
|
|
|
|
this.db.close();
|
|
return this.db.delete().then(() => {
|
|
this.db = null;
|
|
this.tagMetaCache = {};
|
|
return this.prepare();
|
|
});
|
|
}
|
|
|
|
findTerms(term, dictionaries) {
|
|
if (this.db === null) {
|
|
return Promise.reject('database not initialized');
|
|
}
|
|
|
|
const results = [];
|
|
return this.db.terms.where('expression').equals(term).or('reading').equals(term).each(row => {
|
|
if (dictionaries.includes(row.dictionary)) {
|
|
results.push({
|
|
expression: row.expression,
|
|
reading: row.reading,
|
|
tags: splitField(row.tags),
|
|
rules: splitField(row.rules),
|
|
glossary: row.glossary,
|
|
score: row.score,
|
|
dictionary: row.dictionary,
|
|
id: row.id
|
|
});
|
|
}
|
|
}).then(() => {
|
|
return this.cacheTagMeta(dictionaries);
|
|
}).then(() => {
|
|
for (let result of results) {
|
|
result.tagMeta = this.tagMetaCache[result.dictionary] || {};
|
|
}
|
|
|
|
return results;
|
|
});
|
|
}
|
|
|
|
findKanji(kanji, dictionaries) {
|
|
if (this.db === null) {
|
|
return Promise.reject('database not initialized');
|
|
}
|
|
|
|
const results = [];
|
|
return this.db.kanji.where('character').equals(kanji).each(row => {
|
|
if (dictionaries.includes(row.dictionary)) {
|
|
results.push({
|
|
character: row.character,
|
|
onyomi: splitField(row.onyomi),
|
|
kunyomi: splitField(row.kunyomi),
|
|
tags: splitField(row.tags),
|
|
glossary: row.meanings,
|
|
dictionary: row.dictionary
|
|
});
|
|
}
|
|
}).then(() => {
|
|
return this.cacheTagMeta(dictionaries);
|
|
}).then(() => {
|
|
for (let result of results) {
|
|
result.tagMeta = this.tagMetaCache[result.dictionary] || {};
|
|
}
|
|
|
|
return results;
|
|
});
|
|
}
|
|
|
|
cacheTagMeta(dictionaries) {
|
|
if (this.db === null) {
|
|
return Promise.reject('database not initialized');
|
|
}
|
|
|
|
const promises = [];
|
|
for (let dictionary of dictionaries) {
|
|
if (this.tagMetaCache[dictionary]) {
|
|
continue;
|
|
}
|
|
|
|
const tagMeta = {};
|
|
promises.push(
|
|
this.db.tagMeta.where('dictionary').equals(dictionary).each(row => {
|
|
tagMeta[row.name] = {category: row.category, notes: row.notes, order: row.order};
|
|
}).then(() => {
|
|
this.tagMetaCache[dictionary] = tagMeta;
|
|
})
|
|
);
|
|
}
|
|
|
|
return Promise.all(promises);
|
|
}
|
|
|
|
getDictionaries() {
|
|
if (this.db === null) {
|
|
return Promise.reject('database not initialized');
|
|
}
|
|
|
|
return this.db.dictionaries.toArray();
|
|
}
|
|
|
|
importDictionary(indexUrl, callback) {
|
|
if (this.db === null) {
|
|
return Promise.reject('database not initialized');
|
|
}
|
|
|
|
let summary = null;
|
|
const indexLoaded = (title, version, revision, tagMeta, hasTerms, hasKanji) => {
|
|
summary = {title, version, revision, hasTerms, hasKanji};
|
|
return this.db.dictionaries.where('title').equals(title).count().then(count => {
|
|
if (count > 0) {
|
|
return Promise.reject(`dictionary "${title}" is already imported`);
|
|
}
|
|
|
|
return this.db.dictionaries.add({title, version, revision, hasTerms, hasKanji}).then(() => {
|
|
const rows = [];
|
|
for (let tag in tagMeta || {}) {
|
|
const meta = tagMeta[tag];
|
|
const row = sanitizeTag({
|
|
name: tag,
|
|
category: meta.category,
|
|
notes: meta.notes,
|
|
order: meta.order,
|
|
dictionary: title
|
|
});
|
|
|
|
rows.push(row);
|
|
}
|
|
|
|
return this.db.tagMeta.bulkAdd(rows);
|
|
});
|
|
});
|
|
};
|
|
|
|
const termsLoaded = (title, entries, total, current) => {
|
|
const rows = [];
|
|
for (let [expression, reading, tags, rules, score, ...glossary] of entries) {
|
|
rows.push({
|
|
expression,
|
|
reading,
|
|
tags,
|
|
rules,
|
|
score,
|
|
glossary,
|
|
dictionary: title
|
|
});
|
|
}
|
|
|
|
return this.db.terms.bulkAdd(rows).then(() => {
|
|
if (callback) {
|
|
callback(total, current, indexUrl);
|
|
}
|
|
});
|
|
};
|
|
|
|
const kanjiLoaded = (title, entries, total, current) => {
|
|
const rows = [];
|
|
for (let [character, onyomi, kunyomi, tags, ...meanings] of entries) {
|
|
rows.push({
|
|
character,
|
|
onyomi,
|
|
kunyomi,
|
|
tags,
|
|
meanings,
|
|
dictionary: title
|
|
});
|
|
}
|
|
|
|
return this.db.kanji.bulkAdd(rows).then(() => {
|
|
if (callback) {
|
|
callback(total, current, indexUrl);
|
|
}
|
|
});
|
|
};
|
|
|
|
return importJsonDb(indexUrl, indexLoaded, termsLoaded, kanjiLoaded).then(() => summary);
|
|
}
|
|
}
|