import cmdShim from '@zkochan/cmd-shim';
import fs from 'fs';

import config from './config.json';
import {SupportedPackageManagers} from 'sources/types';

async function main() {
    for (const packageManager of Object.keys(config.definitions) as SupportedPackageManagers[]) {
        const binSet = new Set<string>();

        for (const spec of Object.values(config.definitions[packageManager].ranges)) {
            if (Array.isArray(spec.bin)) {
                for (const entry of spec.bin) {
                    binSet.add(entry);
                }
            } else {
                for (const entry of Object.keys(spec.bin)) {
                    binSet.add(entry);
                }
            }
        }

        for (const binaryName of binSet) {
            const entryPath = `${__dirname}/dist/${binaryName}.js`;
            const entryScript = [
                `#!/usr/bin/env node\n`,
                `require('./pmm').runMain(['${packageManager}', '${binaryName}', ...process.argv.slice(2)]);\n`,
            ].join(``);

            fs.writeFileSync(entryPath, entryScript);
            fs.chmodSync(entryPath, 0o755);

            await cmdShim(entryPath, `${__dirname}/shims/${binaryName}`, {});
        }
    }

    console.log(`All shims have been generated.`);
}

main().catch(err => {
    console.log(err.stack);
    process.exitCode = 1;
});