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/*
* 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 Translator {
constructor() {
this.dictionary = new Dictionary();
this.deinflector = new Deinflector();
this.pendingLoads = [];
}
loadData(paths, callback) {
if (this.initialized) {
callback();
return;
}
for (const key of ['rules', 'edict', 'enamdict', 'kanjidic']) {
this.pendingLoads.push(key);
Translator.loadData(paths[key], (response) => {
switch (key) {
case 'rules':
this.deinflector.setRules(JSON.parse(response));
break;
case 'kanjidic':
this.dictionary.addKanjiData(Translator.parseCsv(response));
break;
case 'edict':
case 'enamdict':
this.dictionary.addTermsData(Translator.parseCsv(response));
break;
}
const index = this.pendingLoads.indexOf(key);
this.pendingLoads = this.pendingLoads.splice(index, 1);
if (this.pendingLoads.length === 0) {
callback();
}
});
}
}
findTerm(text) {
const groups = {};
for (let i = text.length; i > 0; --i) {
const term = text.slice(0, i);
const dfs = this.deinflector.deinflect(term, t => {
const tags = [];
for (const d of this.dictionary.findTerm(t)) {
tags.push(d.tags);
}
return tags;
});
if (dfs === null) {
this.processTerm(groups, term);
} else {
for (const df of dfs) {
this.processTerm(groups, df.source, df.rules, df.root);
}
}
}
let results = [];
for (const key in groups) {
results.push(groups[key]);
}
results = results.sort((v1, v2) => {
const sl1 = v1.source.length;
const sl2 = v2.source.length;
if (sl1 > sl2) {
return -1;
} else if (sl1 < sl2) {
return 1;
}
const p1 = v1.tags.indexOf('P') >= 0;
const p2 = v2.tags.indexOf('P') >= 0;
if (p1 && !p2) {
return -1;
} else if (!p1 && p2) {
return 1;
}
const rl1 = v1.rules.length;
const rl2 = v2.rules.length;
if (rl1 < rl2) {
return -1;
} else if (rl2 > rl1) {
return 1;
}
return 0;
});
let length = 0;
for (const result of results) {
length = Math.max(length, result.source.length);
}
return {results: results, length: length};
}
findKanji(text) {
let results = [];
const processed = {};
for (const c of text) {
if (!processed.has(c)) {
results = results.concat(this.dictionary.findKanji(c));
processed[c] = true;
}
}
return results;
}
processTerm(groups, source, rules=[], root='') {
for (const entry of this.dictionary.findTerm(root || source)) {
if (entry.id in groups) {
continue;
}
groups[entry.id] = {
expression: entry.expression,
reading: entry.reading,
glossary: entry.glossary,
tags: entry.tags,
source: source,
rules: rules
};
}
}
static loadData(url, callback) {
const xhr = new XMLHttpRequest();
xhr.addEventListener('load', () => callback(xhr.responseText));
xhr.open('GET', chrome.extension.getURL(url), true);
xhr.send();
}
static parseCsv(data) {
const result = [];
for (const row in data.split('\n')) {
result.push(row.split('\t'));
}
return result;
}
}
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