// @ts-check
import {format} from 'prettier';

import {getDestDir} from './paths.js';
import {PLATFORM} from './platform.js';
import {createTask} from './task.js';
import {readFile, writeFile, getPaths} from './utils.js';

/** @type {import('prettier').Options} */
const options = {
    arrowParens: 'always',
    bracketSpacing: false,
    endOfLine: 'crlf',
    printWidth: 80,
    quoteProps: 'consistent',
    singleQuote: false,
    tabWidth: 4,
    trailingComma: 'none',
};

const extensions = ['html', 'css', 'js'];

async function processAPIBuildModule(filepath) {
    const code = await readFile(filepath);
    const formatted = await format(code, {
        ...options,
        filepath,
    });
    if (code !== formatted) {
        await writeFile(filepath, formatted);
    }
}

async function processAPIBuild() {
    await processAPIBuildModule('darkreader.js');
    await processAPIBuildModule('darkreader.mjs');
}

async function processExtensionPlatform(platform) {
    const dir = getDestDir({debug: false, platform});
    const files = await getPaths(extensions.map((ext) => `${dir}/**/*.${ext}`));
    for (const file of files) {
        const code = await readFile(file);
        const formatted = await format(code, {
            ...options,
            filepath: file,
        });
        if (code !== formatted) {
            await writeFile(file, formatted);
        }
    }
}

async function codeStyle({platforms, debug}) {
    if (debug) {
        throw new Error('code-style task does not support debug builds');
    }
    const promisses = [];
    if (platforms[PLATFORM.API]) {
        promisses.push(processAPIBuild());
    }
    Object.values(PLATFORM)
        .filter((platform) => platform !== PLATFORM.API && platforms[platform])
        .forEach((platform) => promisses.push(processExtensionPlatform(platform)));
    await Promise.all(promisses);
}

const codeStyleTask = createTask(
    'code-style',
    codeStyle,
);

export default codeStyleTask;