/**
 * Copyright 2023-present DreamNum Co., Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import fs from 'node:fs';
import path from 'node:path';
import process from 'node:process';

function snackToPascal(snack: string) {
    return snack
        .split('-')
        .filter(Boolean)
        .map((part) => part[0].toUpperCase() + part.slice(1))
        .join('');
}

const GENERATED_FILE_PATH = path.join(
    process.cwd(),
    'src/components/docs/layout/hyphenation/pattern-loaders.gen.ts'
);

const PATTERNS_DIR = path.join(
    process.cwd(),
    'src/components/docs/layout/hyphenation/patterns'
);

const files = fs.readdirSync(PATTERNS_DIR)
    .filter((file) => file.endsWith('.ts'))
    .map((file) => file.replace(/\.ts$/, ''))
    .sort((a, b) => a.localeCompare(b));

const entries = files
    .map((stem) => {
        const key = snackToPascal(stem);
        return `    [Lang.${key}]: () => import('./patterns/${stem}'),`;
    })
    .join('\n');

const content = [
    '/* eslint-disable */',
    "import { Lang } from './lang';",
    '',
    '// Generated by scripts/generate-hyphen-pattern-loaders.mts',
    'export const PATTERN_LOADERS: Partial<Record<Lang, () => Promise<unknown>>> = {',
    entries,
    '};',
    '',
].join('\n');

fs.mkdirSync(path.dirname(GENERATED_FILE_PATH), { recursive: true });
fs.writeFileSync(GENERATED_FILE_PATH, content);
console.log(`Updated ${GENERATED_FILE_PATH}`);