import { readdir } from 'fs';

const SUB_EXT_LENGTH = 7;


const FILE = process.argv[2];

const main = () => {
    const BASE_NAME = FILE.substring(
        FILE.lastIndexOf('/') + 1,
        FILE.length - SUB_EXT_LENGTH,
    );

    const DIR = FILE.substring(0, FILE.lastIndexOf('/'));

    readdir(DIR, (_, files) => {
        const VIDEO = files.filter((f) =>
            f.includes(BASE_NAME) &&
            !f.endsWith('.nfo') &&
            !f.endsWith('.srt'))[0];

        let lang = FILE.split('.').at(-2);

        if (lang === 'fr') {
            lang = 'fre';
        }
        else if (lang === 'en') {
            lang = 'eng';
        }

        const cmd = [
            'subsync --cli sync',
            `--sub-lang ${lang}`,
            `--ref-lang ${lang}`,

            `--sub-file '${FILE}'`,
            `--out-file '${FILE}'`,
            `--ref-file '${VIDEO}'`,

            '--overwrite',
        ];

        // TODO: actually call the command
        console.log(cmd);
    });
};

if (FILE) {
    main();
    process.exit();
}
else {
    console.error('Error: no argument passed');
    process.exit(1);
}