/* * Copyright (C) 2023 Yomitan Authors * Copyright (C) 2020-2022 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 Ajv from 'ajv'; import {readFileSync} from 'fs'; import {JsonSchema} from '../ext/js/data/json-schema.js'; import {DataError} from './data-error.js'; import {parseJson} from './json.js'; class JsonSchemaAjv { /** * @param {import('dev/schema-validate').Schema} schema */ constructor(schema) { const ajv = new Ajv({ meta: false, strictTuples: false, allowUnionTypes: true }); const metaSchemaPath = require.resolve('ajv/dist/refs/json-schema-draft-07.json'); /** @type {import('ajv').AnySchemaObject} */ const metaSchema = parseJson(readFileSync(metaSchemaPath, {encoding: 'utf8'})); ajv.addMetaSchema(metaSchema); /** @type {import('ajv').ValidateFunction} */ this._validate = ajv.compile(/** @type {import('ajv').Schema} */ (schema)); } /** * @param {unknown} data * @throws {Error} */ validate(data) { if (this._validate(data)) { return; } const {errors} = this._validate; const error = new DataError('Schema validation failed'); error.data = parseJson(JSON.stringify(errors)); throw error; } } /** * Creates a JSON Schema. * @param {import('dev/schema-validate').ValidateMode} mode * @param {import('dev/schema-validate').Schema} schema * @returns {JsonSchema|JsonSchemaAjv} */ export function createJsonSchema(mode, schema) { switch (mode) { case 'ajv': return new JsonSchemaAjv(schema); default: return new JsonSchema(/** @type {import('ext/json-schema').Schema} */ (schema)); } }