move database to use async
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6e986bf1f5
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f49a69c993
@ -20,58 +20,62 @@
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class Database {
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constructor() {
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this.db = null;
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this.dbVersion = 2;
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this.tagMetaCache = {};
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this.version = 2;
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this.tagCache = {};
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}
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sanitize() {
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const db = new Dexie('dict');
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return db.open().then(() => {
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async sanitize() {
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try {
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const db = new Dexie('dict');
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await db.open();
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db.close();
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if (db.verno !== this.dbVersion) {
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return db.delete();
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if (db.verno !== this.version) {
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await db.delete();
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}
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}).catch(() => {});
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}
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catch(error) {
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// NOP
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}
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}
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prepare() {
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async prepare() {
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if (this.db) {
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return Promise.reject('database already initialized');
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throw 'database already initialized';
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}
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return this.sanitize().then(() => {
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this.db = new Dexie('dict');
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this.db.version(this.dbVersion).stores({
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terms: '++id,dictionary,expression,reading',
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kanji: '++,dictionary,character',
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tagMeta: '++,dictionary',
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dictionaries: '++,title,version'
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});
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await this.sanitize();
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return this.db.open();
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this.db = new Dexie('dict');
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this.db.version(this.version).stores({
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terms: '++id,dictionary,expression,reading',
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kanji: '++,dictionary,character',
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tagMeta: '++,dictionary',
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dictionaries: '++,title,version'
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});
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await this.db.open();
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}
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purge() {
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async purge() {
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if (!this.db) {
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return Promise.reject('database not initialized');
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throw 'database not initialized';
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}
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this.db.close();
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return this.db.delete().then(() => {
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this.db = null;
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this.tagMetaCache = {};
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return this.prepare();
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});
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await this.db.delete();
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this.db = null;
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this.tagCache = {};
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await this.prepare();
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}
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findTerms(term, dictionaries) {
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async findTerms(term, dictionaries) {
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if (!this.db) {
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return Promise.reject('database not initialized');
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throw 'database not initialized';
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}
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const results = [];
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return this.db.terms.where('expression').equals(term).or('reading').equals(term).each(row => {
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await this.db.terms.where('expression').equals(term).or('reading').equals(term).each(row => {
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if (dictionaries.includes(row.dictionary)) {
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results.push({
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expression: row.expression,
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@ -84,24 +88,23 @@ class Database {
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id: row.id
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});
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}
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}).then(() => {
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return this.cacheTagMeta(dictionaries);
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}).then(() => {
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for (const result of results) {
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result.tagMeta = this.tagMetaCache[result.dictionary] || {};
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}
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return results;
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});
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await this.cacheTagMeta(dictionaries);
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for (const result of results) {
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result.tagMeta = this.tagCache[result.dictionary] || {};
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}
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return results;
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}
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findKanji(kanji, dictionaries) {
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async findKanji(kanji, dictionaries) {
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if (!this.db) {
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return Promise.reject('database not initialized');
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}
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const results = [];
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return this.db.kanji.where('character').equals(kanji).each(row => {
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await this.db.kanji.where('character').equals(kanji).each(row => {
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if (dictionaries.includes(row.dictionary)) {
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results.push({
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character: row.character,
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@ -112,83 +115,79 @@ class Database {
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dictionary: row.dictionary
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});
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}
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}).then(() => {
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return this.cacheTagMeta(dictionaries);
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}).then(() => {
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for (const result of results) {
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result.tagMeta = this.tagMetaCache[result.dictionary] || {};
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}
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return results;
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});
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}
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cacheTagMeta(dictionaries) {
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if (!this.db) {
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return Promise.reject('database not initialized');
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await this.cacheTagMeta(dictionaries);
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for (const result of results) {
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result.tagMeta = this.tagCache[result.dictionary] || {};
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}
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return results;
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}
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async cacheTagMeta(dictionaries) {
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if (!this.db) {
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throw 'database not initialized';
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}
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const promises = [];
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for (const dictionary of dictionaries) {
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if (this.tagMetaCache[dictionary]) {
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continue;
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}
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const tagMeta = {};
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promises.push(
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this.db.tagMeta.where('dictionary').equals(dictionary).each(row => {
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if (!this.tagCache[dictionary]) {
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const tagMeta = {};
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await this.db.tagMeta.where('dictionary').equals(dictionary).each(row => {
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tagMeta[row.name] = {category: row.category, notes: row.notes, order: row.order};
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}).then(() => {
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this.tagMetaCache[dictionary] = tagMeta;
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})
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);
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}
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});
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return Promise.all(promises);
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this.tagCache[dictionary] = tagMeta;
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}
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}
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}
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getDictionaries() {
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async getDictionaries() {
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if (!this.db) {
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return Promise.reject('database not initialized');
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throw 'database not initialized';
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}
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return this.db.dictionaries.toArray();
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}
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importDictionary(archive, callback) {
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async importDictionary(archive, callback) {
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if (!this.db) {
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return Promise.reject('database not initialized');
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}
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let summary = null;
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const indexLoaded = (title, version, revision, tagMeta, hasTerms, hasKanji) => {
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const indexLoaded = async (title, version, revision, tagMeta, hasTerms, hasKanji) => {
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summary = {title, version, revision, hasTerms, hasKanji};
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return this.db.dictionaries.where('title').equals(title).count().then(count => {
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if (count > 0) {
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return Promise.reject(`dictionary "${title}" is already imported`);
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}
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return this.db.dictionaries.add({title, version, revision, hasTerms, hasKanji}).then(() => {
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const rows = [];
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for (const tag in tagMeta || {}) {
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const meta = tagMeta[tag];
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const row = dictTagSanitize({
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name: tag,
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category: meta.category,
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notes: meta.notes,
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order: meta.order,
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dictionary: title
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});
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const count = await this.db.dictionaries.where('title').equals(title).count();
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if (count > 0) {
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throw `dictionary "${title}" is already imported`;
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}
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rows.push(row);
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}
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await this.db.dictionaries.add({title, version, revision, hasTerms, hasKanji});
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return this.db.tagMeta.bulkAdd(rows);
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const rows = [];
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for (const tag in tagMeta || {}) {
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const meta = tagMeta[tag];
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const row = dictTagSanitize({
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name: tag,
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category: meta.category,
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notes: meta.notes,
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order: meta.order,
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dictionary: title
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});
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});
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rows.push(row);
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}
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await this.db.tagMeta.bulkAdd(rows);
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};
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const termsLoaded = (title, entries, total, current) => {
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const termsLoaded = async (title, entries, total, current) => {
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if (callback) {
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callback(total, current);
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}
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const rows = [];
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for (const [expression, reading, tags, rules, score, ...glossary] of entries) {
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rows.push({
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@ -202,14 +201,14 @@ class Database {
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});
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}
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return this.db.terms.bulkAdd(rows).then(() => {
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if (callback) {
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callback(total, current);
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}
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});
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await this.db.terms.bulkAdd(rows);
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};
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const kanjiLoaded = (title, entries, total, current) => {
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const kanjiLoaded = async (title, entries, total, current) => {
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if (callback) {
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callback(total, current);
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}
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const rows = [];
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for (const [character, onyomi, kunyomi, tags, ...meanings] of entries) {
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rows.push({
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@ -222,13 +221,10 @@ class Database {
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});
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}
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return this.db.kanji.bulkAdd(rows).then(() => {
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if (callback) {
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callback(total, current);
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}
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});
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await this.db.kanji.bulkAdd(rows);
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};
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return zipLoadDb(archive, indexLoaded, termsLoaded, kanjiLoaded).then(() => summary);
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await zipLoadDb(archive, indexLoaded, termsLoaded, kanjiLoaded);
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return summary;
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}
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}
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