const { parse } = require('@ltd/j-toml');
const { render } = require('mustache');
const { readFile, writeFile } = require('node:fs/promises');
const { resolve } = require('node:path');
const util = require('node:util');
const exec = util.promisify(require('node:child_process').exec);

async function compile() {
    const { stdout, stderr } = await exec('git rev-parse --short @');

    const confPath = resolve('./config.toml');
    const confToml = await readFile(confPath, { encoding: 'utf8' });
    const config = parse(confToml);

    config.version = stdout.trim();
    config.text = function () {
        const string = this.icon;
        return string.charAt(0).toUpperCase() + string.slice(1);
    };

    const tempPath = resolve('./index.html');
    const template = await readFile(tempPath, { encoding: 'utf8' });

    const out = render(template, config);
    const outPath = resolve('./build/index.html');

    await writeFile(outPath, out);
}

compile();