Create new dictionary import function

This commit is contained in:
toasted-nutbread 2020-02-17 18:17:12 -05:00
parent 212e5428e8
commit 177bca4865

View File

@ -316,6 +316,169 @@ class Database {
return result;
}
async importDictionaryNew(archiveSource, onProgress, details) {
this._validate();
const db = this.db;
const hasOnProgress = (typeof onProgress === 'function');
// Read archive
const archive = await JSZip.loadAsync(archiveSource);
// Read and validate index
const indexFile = archive.files['index.json'];
if (!indexFile) {
throw new Error('No dictionary index found in archive');
}
const index = JSON.parse(await indexFile.async('string'));
const dictionaryTitle = index.title;
const version = index.format || index.version;
if (!dictionaryTitle || !index.revision) {
throw new Error('Unrecognized dictionary format');
}
// Verify database is not already imported
if (await this._dictionaryExists(dictionaryTitle)) {
throw new Error('Dictionary is already imported');
}
// Data format converters
const convertTermBankEntry = (entry) => {
if (version === 1) {
const [expression, reading, definitionTags, rules, score, ...glossary] = entry;
return {expression, reading, definitionTags, rules, score, glossary};
} else {
const [expression, reading, definitionTags, rules, score, glossary, sequence, termTags] = entry;
return {expression, reading, definitionTags, rules, score, glossary, sequence, termTags};
}
};
const convertTermMetaBankEntry = (entry) => {
const [expression, mode, data] = entry;
return {expression, mode, data};
};
const convertKanjiBankEntry = (entry) => {
if (version === 1) {
const [character, onyomi, kunyomi, tags, ...meanings] = entry;
return {character, onyomi, kunyomi, tags, meanings};
} else {
const [character, onyomi, kunyomi, tags, meanings, stats] = entry;
return {character, onyomi, kunyomi, tags, meanings, stats};
}
};
const convertKanjiMetaBankEntry = (entry) => {
const [character, mode, data] = entry;
return {character, mode, data};
};
const convertTagBankEntry = (entry) => {
const [name, category, order, notes, score] = entry;
return {name, category, order, notes, score};
};
// Archive file reading
const readFileSequence = async (fileNameFormat, convertEntry) => {
const results = [];
for (let i = 1; true; ++i) {
const fileName = fileNameFormat.replace(/\?/, `${i}`);
const file = archive.files[fileName];
if (!file) { break; }
const entries = JSON.parse(await file.async('string'));
for (let entry of entries) {
entry = convertEntry(entry);
entry.dictionary = dictionaryTitle;
results.push(entry);
}
}
return results;
};
// Load data
const termList = await readFileSequence('term_bank_?.json', convertTermBankEntry);
const termMetaList = await readFileSequence('term_meta_bank_?.json', convertTermMetaBankEntry);
const kanjiList = await readFileSequence('kanji_bank_?.json', convertKanjiBankEntry);
const kanjiMetaList = await readFileSequence('kanji_meta_bank_?.json', convertKanjiMetaBankEntry);
const tagList = await readFileSequence('tag_bank_?.json', convertTagBankEntry);
// Old tags
const indexTagMeta = index.tagMeta;
if (typeof indexTagMeta === 'object' && indexTagMeta !== null) {
for (const name of Object.keys(indexTagMeta)) {
const {category, order, notes, score} = indexTagMeta[name];
tagList.push({name, category, order, notes, score});
}
}
// Prefix wildcard support
const prefixWildcardsSupported = !!details.prefixWildcardsSupported;
if (prefixWildcardsSupported) {
for (const entry of termList) {
entry.expressionReverse = stringReverse(entry.expression);
entry.readingReverse = stringReverse(entry.reading);
}
}
// Add dictionary
const summary = {
title: dictionaryTitle,
revision: index.revision,
sequenced: index.sequenced,
version,
prefixWildcardsSupported
};
{
const transaction = db.transaction(['dictionaries'], 'readwrite');
const objectStore = transaction.objectStore('dictionaries');
await Database._bulkAdd(objectStore, [summary], 0, 1);
}
// Add data
const errors = [];
const total = (
termList.length +
termMetaList.length +
kanjiList.length +
kanjiMetaList.length +
tagList.length
);
let loadedCount = 0;
const maxTransactionLength = 1000;
const bulkAdd = async (objectStoreName, entries) => {
const ii = entries.length;
for (let i = 0; i < ii; i += maxTransactionLength) {
const count = Math.min(maxTransactionLength, ii - i);
try {
const transaction = db.transaction([objectStoreName], 'readwrite');
const objectStore = transaction.objectStore(objectStoreName);
await Database._bulkAdd(objectStore, entries, i, count);
} catch (e) {
errors.push(e);
}
loadedCount += count;
if (hasOnProgress) {
onProgress(total, loadedCount);
}
}
};
await bulkAdd('terms', termList);
await bulkAdd('termMeta', termMetaList);
await bulkAdd('kanji', kanjiList);
await bulkAdd('kanjiMeta', kanjiMetaList);
await bulkAdd('tagMeta', tagList);
return {result: summary, errors};
}
async importDictionary(archive, progressCallback, details) {
this._validate();
@ -499,6 +662,15 @@ class Database {
}
}
async _dictionaryExists(title) {
const db = this.db;
const dbCountTransaction = db.transaction(['dictionaries'], 'readonly');
const dbIndex = dbCountTransaction.objectStore('dictionaries').index('title');
const only = IDBKeyRange.only(title);
const count = await Database._getCount(dbIndex, only);
return count > 0;
}
async _findGenericBulk(tableName, indexName, indexValueList, titles, createResult) {
this._validate();