move dictionary files to dictionary folder (#429)

1 files changed, 0 insertions, 661 deletions

diff --git a/ext/js/language/dictionary-database.js b/ext/js/language/dictionary-database.js
deleted file mode 100644
index 45c5c6fd..00000000
--- a/ext/js/language/dictionary-database.js
+++ /dev/null
@@ -1,661 +0,0 @@
-/*
- * Copyright (C) 2023  Yomitan Authors
- * Copyright (C) 2016-2022  Yomichan Authors
- *
- * 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 <https://www.gnu.org/licenses/>.
- */
-
-import {log, stringReverse} from '../core.js';
-import {Database} from '../data/database.js';
-
-export class DictionaryDatabase {
-    constructor() {
-        /** @type {Database<import('dictionary-database').ObjectStoreName>} */
-        this._db = new Database();
-        /** @type {string} */
-        this._dbName = 'dict';
-        /** @type {import('dictionary-database').CreateQuery<string>} */
-        this._createOnlyQuery1 = (item) => IDBKeyRange.only(item);
-        /** @type {import('dictionary-database').CreateQuery<import('dictionary-database').DictionaryAndQueryRequest>} */
-        this._createOnlyQuery2 = (item) => IDBKeyRange.only(item.query);
-        /** @type {import('dictionary-database').CreateQuery<import('dictionary-database').TermExactRequest>} */
-        this._createOnlyQuery3 = (item) => IDBKeyRange.only(item.term);
-        /** @type {import('dictionary-database').CreateQuery<import('dictionary-database').MediaRequest>} */
-        this._createOnlyQuery4 = (item) => IDBKeyRange.only(item.path);
-        /** @type {import('dictionary-database').CreateQuery<string>} */
-        this._createBoundQuery1 = (item) => IDBKeyRange.bound(item, `${item}\uffff`, false, false);
-        /** @type {import('dictionary-database').CreateQuery<string>} */
-        this._createBoundQuery2 = (item) => { item = stringReverse(item); return IDBKeyRange.bound(item, `${item}\uffff`, false, false); };
-        /** @type {import('dictionary-database').CreateResult<import('dictionary-database').TermExactRequest, import('dictionary-database').DatabaseTermEntryWithId, import('dictionary-database').TermEntry>} */
-        this._createTermBind1 = this._createTermExact.bind(this);
-        /** @type {import('dictionary-database').CreateResult<import('dictionary-database').DictionaryAndQueryRequest, import('dictionary-database').DatabaseTermEntryWithId, import('dictionary-database').TermEntry>} */
-        this._createTermBind2 = this._createTermSequenceExact.bind(this);
-        /** @type {import('dictionary-database').CreateResult<string, import('dictionary-database').DatabaseTermMeta, import('dictionary-database').TermMeta>} */
-        this._createTermMetaBind = this._createTermMeta.bind(this);
-        /** @type {import('dictionary-database').CreateResult<string, import('dictionary-database').DatabaseKanjiEntry, import('dictionary-database').KanjiEntry>} */
-        this._createKanjiBind = this._createKanji.bind(this);
-        /** @type {import('dictionary-database').CreateResult<string, import('dictionary-database').DatabaseKanjiMeta, import('dictionary-database').KanjiMeta>} */
-        this._createKanjiMetaBind = this._createKanjiMeta.bind(this);
-        /** @type {import('dictionary-database').CreateResult<import('dictionary-database').MediaRequest, import('dictionary-database').MediaDataArrayBufferContent, import('dictionary-database').Media>} */
-        this._createMediaBind = this._createMedia.bind(this);
-    }
-
-    /** */
-    async prepare() {
-        await this._db.open(
-            this._dbName,
-            60,
-            /** @type {import('database').StructureDefinition<import('dictionary-database').ObjectStoreName>[]} */
-            ([
-                /** @type {import('database').StructureDefinition<import('dictionary-database').ObjectStoreName>} */
-                ({
-                    version: 20,
-                    stores: {
-                        terms: {
-                            primaryKey: {keyPath: 'id', autoIncrement: true},
-                            indices: ['dictionary', 'expression', 'reading']
-                        },
-                        kanji: {
-                            primaryKey: {autoIncrement: true},
-                            indices: ['dictionary', 'character']
-                        },
-                        tagMeta: {
-                            primaryKey: {autoIncrement: true},
-                            indices: ['dictionary']
-                        },
-                        dictionaries: {
-                            primaryKey: {autoIncrement: true},
-                            indices: ['title', 'version']
-                        }
-                    }
-                }),
-                {
-                    version: 30,
-                    stores: {
-                        termMeta: {
-                            primaryKey: {autoIncrement: true},
-                            indices: ['dictionary', 'expression']
-                        },
-                        kanjiMeta: {
-                            primaryKey: {autoIncrement: true},
-                            indices: ['dictionary', 'character']
-                        },
-                        tagMeta: {
-                            primaryKey: {autoIncrement: true},
-                            indices: ['dictionary', 'name']
-                        }
-                    }
-                },
-                {
-                    version: 40,
-                    stores: {
-                        terms: {
-                            primaryKey: {keyPath: 'id', autoIncrement: true},
-                            indices: ['dictionary', 'expression', 'reading', 'sequence']
-                        }
-                    }
-                },
-                {
-                    version: 50,
-                    stores: {
-                        terms: {
-                            primaryKey: {keyPath: 'id', autoIncrement: true},
-                            indices: ['dictionary', 'expression', 'reading', 'sequence', 'expressionReverse', 'readingReverse']
-                        }
-                    }
-                },
-                {
-                    version: 60,
-                    stores: {
-                        media: {
-                            primaryKey: {keyPath: 'id', autoIncrement: true},
-                            indices: ['dictionary', 'path']
-                        }
-                    }
-                }
-            ])
-        );
-    }
-
-    /** */
-    async close() {
-        this._db.close();
-    }
-
-    /**
-     * @returns {boolean}
-     */
-    isPrepared() {
-        return this._db.isOpen();
-    }
-
-    /**
-     * @returns {Promise<boolean>}
-     */
-    async purge() {
-        if (this._db.isOpening()) {
-            throw new Error('Cannot purge database while opening');
-        }
-        if (this._db.isOpen()) {
-            this._db.close();
-        }
-        let result = false;
-        try {
-            await Database.deleteDatabase(this._dbName);
-            result = true;
-        } catch (e) {
-            log.error(e);
-        }
-        await this.prepare();
-        return result;
-    }
-
-    /**
-     * @param {string} dictionaryName
-     * @param {number} progressRate
-     * @param {import('dictionary-database').DeleteDictionaryProgressCallback} onProgress
-     */
-    async deleteDictionary(dictionaryName, progressRate, onProgress) {
-        /** @type {[objectStoreName: import('dictionary-database').ObjectStoreName, key: string][][]} */
-        const targetGroups = [
-            [
-                ['kanji', 'dictionary'],
-                ['kanjiMeta', 'dictionary'],
-                ['terms', 'dictionary'],
-                ['termMeta', 'dictionary'],
-                ['tagMeta', 'dictionary'],
-                ['media', 'dictionary']
-            ],
-            [
-                ['dictionaries', 'title']
-            ]
-        ];
-
-        let storeCount = 0;
-        for (const targets of targetGroups) {
-            storeCount += targets.length;
-        }
-
-        /** @type {import('dictionary-database').DeleteDictionaryProgressData} */
-        const progressData = {
-            count: 0,
-            processed: 0,
-            storeCount,
-            storesProcesed: 0
-        };
-
-        /**
-         * @param {IDBValidKey[]} keys
-         * @returns {IDBValidKey[]}
-         */
-        const filterKeys = (keys) => {
-            ++progressData.storesProcesed;
-            progressData.count += keys.length;
-            onProgress(progressData);
-            return keys;
-        };
-        const onProgressWrapper = () => {
-            const processed = progressData.processed + 1;
-            progressData.processed = processed;
-            if ((processed % progressRate) === 0 || processed === progressData.count) {
-                onProgress(progressData);
-            }
-        };
-
-        for (const targets of targetGroups) {
-            const promises = [];
-            for (const [objectStoreName, indexName] of targets) {
-                const query = IDBKeyRange.only(dictionaryName);
-                const promise = this._db.bulkDelete(objectStoreName, indexName, query, filterKeys, onProgressWrapper);
-                promises.push(promise);
-            }
-            await Promise.all(promises);
-        }
-    }
-
-    /**
-     * @param {string[]} termList
-     * @param {import('dictionary-database').DictionarySet} dictionaries
-     * @param {import('dictionary-database').MatchType} matchType
-     * @returns {Promise<import('dictionary-database').TermEntry[]>}
-     */
-    findTermsBulk(termList, dictionaries, matchType) {
-        const visited = new Set();
-        /** @type {import('dictionary-database').FindPredicate<string, import('dictionary-database').DatabaseTermEntryWithId>} */
-        const predicate = (row) => {
-            if (!dictionaries.has(row.dictionary)) { return false; }
-            const {id} = row;
-            if (visited.has(id)) { return false; }
-            visited.add(id);
-            return true;
-        };
-
-        const indexNames = (matchType === 'suffix') ? ['expressionReverse', 'readingReverse'] : ['expression', 'reading'];
-
-        let createQuery = this._createOnlyQuery1;
-        switch (matchType) {
-            case 'prefix':
-                createQuery = this._createBoundQuery1;
-                break;
-            case 'suffix':
-                createQuery = this._createBoundQuery2;
-                break;
-        }
-
-        const createResult = this._createTermGeneric.bind(this, matchType);
-
-        return this._findMultiBulk('terms', indexNames, termList, createQuery, predicate, createResult);
-    }
-
-    /**
-     * @param {import('dictionary-database').TermExactRequest[]} termList
-     * @param {import('dictionary-database').DictionarySet} dictionaries
-     * @returns {Promise<import('dictionary-database').TermEntry[]>}
-     */
-    findTermsExactBulk(termList, dictionaries) {
-        /** @type {import('dictionary-database').FindPredicate<import('dictionary-database').TermExactRequest, import('dictionary-database').DatabaseTermEntry>} */
-        const predicate = (row, item) => (row.reading === item.reading && dictionaries.has(row.dictionary));
-        return this._findMultiBulk('terms', ['expression'], termList, this._createOnlyQuery3, predicate, this._createTermBind1);
-    }
-
-    /**
-     * @param {import('dictionary-database').DictionaryAndQueryRequest[]} items
-     * @returns {Promise<import('dictionary-database').TermEntry[]>}
-     */
-    findTermsBySequenceBulk(items) {
-        /** @type {import('dictionary-database').FindPredicate<import('dictionary-database').DictionaryAndQueryRequest, import('dictionary-database').DatabaseTermEntry>} */
-        const predicate = (row, item) => (row.dictionary === item.dictionary);
-        return this._findMultiBulk('terms', ['sequence'], items, this._createOnlyQuery2, predicate, this._createTermBind2);
-    }
-
-    /**
-     * @param {string[]} termList
-     * @param {import('dictionary-database').DictionarySet} dictionaries
-     * @returns {Promise<import('dictionary-database').TermMeta[]>}
-     */
-    findTermMetaBulk(termList, dictionaries) {
-        /** @type {import('dictionary-database').FindPredicate<string, import('dictionary-database').DatabaseTermMeta>} */
-        const predicate = (row) => dictionaries.has(row.dictionary);
-        return this._findMultiBulk('termMeta', ['expression'], termList, this._createOnlyQuery1, predicate, this._createTermMetaBind);
-    }
-
-    /**
-     * @param {string[]} kanjiList
-     * @param {import('dictionary-database').DictionarySet} dictionaries
-     * @returns {Promise<import('dictionary-database').KanjiEntry[]>}
-     */
-    findKanjiBulk(kanjiList, dictionaries) {
-        /** @type {import('dictionary-database').FindPredicate<string, import('dictionary-database').DatabaseKanjiEntry>} */
-        const predicate = (row) => dictionaries.has(row.dictionary);
-        return this._findMultiBulk('kanji', ['character'], kanjiList, this._createOnlyQuery1, predicate, this._createKanjiBind);
-    }
-
-    /**
-     * @param {string[]} kanjiList
-     * @param {import('dictionary-database').DictionarySet} dictionaries
-     * @returns {Promise<import('dictionary-database').KanjiMeta[]>}
-     */
-    findKanjiMetaBulk(kanjiList, dictionaries) {
-        /** @type {import('dictionary-database').FindPredicate<string, import('dictionary-database').DatabaseKanjiMeta>} */
-        const predicate = (row) => dictionaries.has(row.dictionary);
-        return this._findMultiBulk('kanjiMeta', ['character'], kanjiList, this._createOnlyQuery1, predicate, this._createKanjiMetaBind);
-    }
-
-    /**
-     * @param {import('dictionary-database').DictionaryAndQueryRequest[]} items
-     * @returns {Promise<(import('dictionary-database').Tag|undefined)[]>}
-     */
-    findTagMetaBulk(items) {
-        /** @type {import('dictionary-database').FindPredicate<import('dictionary-database').DictionaryAndQueryRequest, import('dictionary-database').Tag>} */
-        const predicate = (row, item) => (row.dictionary === item.dictionary);
-        return this._findFirstBulk('tagMeta', 'name', items, this._createOnlyQuery2, predicate);
-    }
-
-    /**
-     * @param {string} name
-     * @param {string} dictionary
-     * @returns {Promise<?import('dictionary-database').Tag>}
-     */
-    findTagForTitle(name, dictionary) {
-        const query = IDBKeyRange.only(name);
-        return this._db.find('tagMeta', 'name', query, (row) => (/** @type {import('dictionary-database').Tag} */ (row).dictionary === dictionary), null, null);
-    }
-
-    /**
-     * @param {import('dictionary-database').MediaRequest[]} items
-     * @returns {Promise<import('dictionary-database').Media[]>}
-     */
-    getMedia(items) {
-        /** @type {import('dictionary-database').FindPredicate<import('dictionary-database').MediaRequest, import('dictionary-database').MediaDataArrayBufferContent>} */
-        const predicate = (row, item) => (row.dictionary === item.dictionary);
-        return this._findMultiBulk('media', ['path'], items, this._createOnlyQuery4, predicate, this._createMediaBind);
-    }
-
-    /**
-     * @returns {Promise<import('dictionary-importer').Summary[]>}
-     */
-    getDictionaryInfo() {
-        return new Promise((resolve, reject) => {
-            const transaction = this._db.transaction(['dictionaries'], 'readonly');
-            const objectStore = transaction.objectStore('dictionaries');
-            this._db.getAll(objectStore, null, resolve, reject, null);
-        });
-    }
-
-    /**
-     * @param {string[]} dictionaryNames
-     * @param {boolean} getTotal
-     * @returns {Promise<import('dictionary-database').DictionaryCounts>}
-     */
-    getDictionaryCounts(dictionaryNames, getTotal) {
-        return new Promise((resolve, reject) => {
-            const targets = [
-                ['kanji', 'dictionary'],
-                ['kanjiMeta', 'dictionary'],
-                ['terms', 'dictionary'],
-                ['termMeta', 'dictionary'],
-                ['tagMeta', 'dictionary'],
-                ['media', 'dictionary']
-            ];
-            const objectStoreNames = targets.map(([objectStoreName]) => objectStoreName);
-            const transaction = this._db.transaction(objectStoreNames, 'readonly');
-            const databaseTargets = targets.map(([objectStoreName, indexName]) => {
-                const objectStore = transaction.objectStore(objectStoreName);
-                const index = objectStore.index(indexName);
-                return {objectStore, index};
-            });
-
-            /** @type {import('database').CountTarget[]} */
-            const countTargets = [];
-            if (getTotal) {
-                for (const {objectStore} of databaseTargets) {
-                    countTargets.push([objectStore, void 0]);
-                }
-            }
-            for (const dictionaryName of dictionaryNames) {
-                const query = IDBKeyRange.only(dictionaryName);
-                for (const {index} of databaseTargets) {
-                    countTargets.push([index, query]);
-                }
-            }
-
-            /**
-             * @param {number[]} results
-             */
-            const onCountComplete = (results) => {
-                const resultCount = results.length;
-                const targetCount = targets.length;
-                /** @type {import('dictionary-database').DictionaryCountGroup[]} */
-                const counts = [];
-                for (let i = 0; i < resultCount; i += targetCount) {
-                    /** @type {import('dictionary-database').DictionaryCountGroup} */
-                    const countGroup = {};
-                    for (let j = 0; j < targetCount; ++j) {
-                        countGroup[targets[j][0]] = results[i + j];
-                    }
-                    counts.push(countGroup);
-                }
-                const total = getTotal ? /** @type {import('dictionary-database').DictionaryCountGroup} */ (counts.shift()) : null;
-                resolve({total, counts});
-            };
-
-            this._db.bulkCount(countTargets, onCountComplete, reject);
-        });
-    }
-
-    /**
-     * @param {string} title
-     * @returns {Promise<boolean>}
-     */
-    async dictionaryExists(title) {
-        const query = IDBKeyRange.only(title);
-        const result = await this._db.find('dictionaries', 'title', query, null, null, void 0);
-        return typeof result !== 'undefined';
-    }
-
-    /**
-     * @template {import('dictionary-database').ObjectStoreName} T
-     * @param {T} objectStoreName
-     * @param {import('dictionary-database').ObjectStoreData<T>[]} items
-     * @param {number} start
-     * @param {number} count
-     * @returns {Promise<void>}
-     */
-    bulkAdd(objectStoreName, items, start, count) {
-        return this._db.bulkAdd(objectStoreName, items, start, count);
-    }
-
-    // Private
-
-    /**
-     * @template [TRow=unknown]
-     * @template [TItem=unknown]
-     * @template [TResult=unknown]
-     * @param {import('dictionary-database').ObjectStoreName} objectStoreName
-     * @param {string[]} indexNames
-     * @param {TItem[]} items
-     * @param {import('dictionary-database').CreateQuery<TItem>} createQuery
-     * @param {import('dictionary-database').FindPredicate<TItem, TRow>} predicate
-     * @param {import('dictionary-database').CreateResult<TItem, TRow, TResult>} createResult
-     * @returns {Promise<TResult[]>}
-     */
-    _findMultiBulk(objectStoreName, indexNames, items, createQuery, predicate, createResult) {
-        return new Promise((resolve, reject) => {
-            const itemCount = items.length;
-            const indexCount = indexNames.length;
-            /** @type {TResult[]} */
-            const results = [];
-            if (itemCount === 0 || indexCount === 0) {
-                resolve(results);
-                return;
-            }
-
-            const transaction = this._db.transaction([objectStoreName], 'readonly');
-            const objectStore = transaction.objectStore(objectStoreName);
-            const indexList = [];
-            for (const indexName of indexNames) {
-                indexList.push(objectStore.index(indexName));
-            }
-            let completeCount = 0;
-            const requiredCompleteCount = itemCount * indexCount;
-            /**
-             * @param {TRow[]} rows
-             * @param {import('dictionary-database').FindMultiBulkData<TItem>} data
-             */
-            const onGetAll = (rows, data) => {
-                for (const row of rows) {
-                    if (predicate(row, data.item)) {
-                        results.push(createResult(row, data));
-                    }
-                }
-                if (++completeCount >= requiredCompleteCount) {
-                    resolve(results);
-                }
-            };
-            for (let i = 0; i < itemCount; ++i) {
-                const item = items[i];
-                const query = createQuery(item);
-                for (let j = 0; j < indexCount; ++j) {
-                    /** @type {import('dictionary-database').FindMultiBulkData<TItem>} */
-                    const data = {item, itemIndex: i, indexIndex: j};
-                    this._db.getAll(indexList[j], query, onGetAll, reject, data);
-                }
-            }
-        });
-    }
-
-    /**
-     * @template [TRow=unknown]
-     * @template [TItem=unknown]
-     * @param {import('dictionary-database').ObjectStoreName} objectStoreName
-     * @param {string} indexName
-     * @param {TItem[]} items
-     * @param {import('dictionary-database').CreateQuery<TItem>} createQuery
-     * @param {import('dictionary-database').FindPredicate<TItem, TRow>} predicate
-     * @returns {Promise<(TRow|undefined)[]>}
-     */
-    _findFirstBulk(objectStoreName, indexName, items, createQuery, predicate) {
-        return new Promise((resolve, reject) => {
-            const itemCount = items.length;
-            /** @type {(TRow|undefined)[]} */
-            const results = new Array(itemCount);
-            if (itemCount === 0) {
-                resolve(results);
-                return;
-            }
-
-            const transaction = this._db.transaction([objectStoreName], 'readonly');
-            const objectStore = transaction.objectStore(objectStoreName);
-            const index = objectStore.index(indexName);
-            let completeCount = 0;
-            /**
-             * @param {TRow|undefined} row
-             * @param {number} itemIndex
-             */
-            const onFind = (row, itemIndex) => {
-                results[itemIndex] = row;
-                if (++completeCount >= itemCount) {
-                    resolve(results);
-                }
-            };
-            for (let i = 0; i < itemCount; ++i) {
-                const item = items[i];
-                const query = createQuery(item);
-                this._db.findFirst(index, query, onFind, reject, i, predicate, item, void 0);
-            }
-        });
-    }
-
-    /**
-     * @param {import('dictionary-database').MatchType} matchType
-     * @param {import('dictionary-database').DatabaseTermEntryWithId} row
-     * @param {import('dictionary-database').FindMultiBulkData<string>} data
-     * @returns {import('dictionary-database').TermEntry}
-     */
-    _createTermGeneric(matchType, row, data) {
-        const matchSourceIsTerm = (data.indexIndex === 0);
-        const matchSource = (matchSourceIsTerm ? 'term' : 'reading');
-        if ((matchSourceIsTerm ? row.expression : row.reading) === data.item) {
-            matchType = 'exact';
-        }
-        return this._createTerm(matchSource, matchType, row, data.itemIndex);
-    }
-
-    /**
-     * @param {import('dictionary-database').DatabaseTermEntryWithId} row
-     * @param {import('dictionary-database').FindMultiBulkData<import('dictionary-database').TermExactRequest>} data
-     * @returns {import('dictionary-database').TermEntry}
-     */
-    _createTermExact(row, data) {
-        return this._createTerm('term', 'exact', row, data.itemIndex);
-    }
-
-    /**
-     * @param {import('dictionary-database').DatabaseTermEntryWithId} row
-     * @param {import('dictionary-database').FindMultiBulkData<import('dictionary-database').DictionaryAndQueryRequest>} data
-     * @returns {import('dictionary-database').TermEntry}
-     */
-    _createTermSequenceExact(row, data) {
-        return this._createTerm('sequence', 'exact', row, data.itemIndex);
-    }
-
-    /**
-     * @param {import('dictionary-database').MatchSource} matchSource
-     * @param {import('dictionary-database').MatchType} matchType
-     * @param {import('dictionary-database').DatabaseTermEntryWithId} row
-     * @param {number} index
-     * @returns {import('dictionary-database').TermEntry}
-     */
-    _createTerm(matchSource, matchType, row, index) {
-        const {sequence} = row;
-        return {
-            index,
-            matchType,
-            matchSource,
-            term: row.expression,
-            reading: row.reading,
-            definitionTags: this._splitField(row.definitionTags || row.tags),
-            termTags: this._splitField(row.termTags),
-            rules: this._splitField(row.rules),
-            definitions: row.glossary,
-            score: row.score,
-            dictionary: row.dictionary,
-            id: row.id,
-            sequence: typeof sequence === 'number' ? sequence : -1
-        };
-    }
-
-    /**
-     * @param {import('dictionary-database').DatabaseKanjiEntry} row
-     * @param {import('dictionary-database').FindMultiBulkData<string>} data
-     * @returns {import('dictionary-database').KanjiEntry}
-     */
-    _createKanji(row, {itemIndex: index}) {
-        const {stats} = row;
-        return {
-            index,
-            character: row.character,
-            onyomi: this._splitField(row.onyomi),
-            kunyomi: this._splitField(row.kunyomi),
-            tags: this._splitField(row.tags),
-            definitions: row.meanings,
-            stats: typeof stats === 'object' && stats !== null ? stats : {},
-            dictionary: row.dictionary
-        };
-    }
-
-    /**
-     * @param {import('dictionary-database').DatabaseTermMeta} row
-     * @param {import('dictionary-database').FindMultiBulkData<string>} data
-     * @returns {import('dictionary-database').TermMeta}
-     * @throws {Error}
-     */
-    _createTermMeta({expression: term, mode, data, dictionary}, {itemIndex: index}) {
-        switch (mode) {
-            case 'freq':
-                return {index, term, mode, data, dictionary};
-            case 'pitch':
-                return {index, term, mode, data, dictionary};
-            default:
-                throw new Error(`Unknown mode: ${mode}`);
-        }
-    }
-
-    /**
-     * @param {import('dictionary-database').DatabaseKanjiMeta} row
-     * @param {import('dictionary-database').FindMultiBulkData<string>} data
-     * @returns {import('dictionary-database').KanjiMeta}
-     */
-    _createKanjiMeta({character, mode, data, dictionary}, {itemIndex: index}) {
-        return {index, character, mode, data, dictionary};
-    }
-
-    /**
-     * @param {import('dictionary-database').MediaDataArrayBufferContent} row
-     * @param {import('dictionary-database').FindMultiBulkData<import('dictionary-database').MediaRequest>} data
-     * @returns {import('dictionary-database').Media}
-     */
-    _createMedia(row, {itemIndex: index}) {
-        const {dictionary, path, mediaType, width, height, content} = row;
-        return {index, dictionary, path, mediaType, width, height, content};
-    }
-
-    /**
-     * @param {unknown} field
-     * @returns {string[]}
-     */
-    _splitField(field) {
-        return typeof field === 'string' && field.length > 0 ? field.split(' ') : [];
-    }
-}