#!/usr/bin/env node

import fs from 'node:fs';
import path from 'node:path';
import { fileURLToPath } from 'node:url';
import semver from 'semver';

function bump(fileName) {
    const __filename = fileURLToPath(import.meta.url);
    const __dirname = path.dirname(__filename);

    const filePath = path.resolve(__dirname, '..', fileName);

    if (!bump.nextVersion) {
        const packageJsonPath = path.resolve(__dirname, '../package.json');
        const packageJson = JSON.parse(fs.readFileSync(packageJsonPath, 'utf8'));
        const version = packageJson.version;

        if (typeof version !== 'string') {
            throw new Error('package.json does not contain a string "version" field.');
        }

        const nextVersion = semver.inc(version, 'patch');

        if (!nextVersion) {
            throw new Error(`Unsupported semver format: "${version}"`);
        }

        bump.nextVersion = nextVersion;
    }

    if (!fs.existsSync(filePath)) {
        throw new Error(`File not found: ${filePath}`);
    }

    const json = JSON.parse(fs.readFileSync(filePath, 'utf8'));
    json.version = bump.nextVersion;

    if (path.basename(filePath) === 'package-lock.json' && json.packages?.['']) {
        json.packages[''].version = bump.nextVersion;
    }

    fs.writeFileSync(filePath, `${JSON.stringify(json, null, 4)}\n`, 'utf8');
    console.log(`Bumped version in ${fileName} to ${bump.nextVersion}`);
}

bump('package.json');
bump('package-lock.json');