import path from 'node:path'
import fs from 'node:fs/promises'

/**
 * check if directory exists
 */
export async function assertDirectoryExists(filepath: string) {
    const exist = await fs.access(path.dirname(filepath)).then(() => true, () => false)
    if (!exist) {
        throw new Error(`directory (${path.dirname(filepath)}) doesn't exist`)
    }
}

/**
 * Get absolute file path of a file
 * @param filepath given file path
 * @returns absolute file path
 */
export function getAbsoluteFilepath(filepath: string) {
    return filepath.startsWith('/') || filepath.startsWith('\\') || filepath.match(/^[a-zA-Z]:\\/)
        ? filepath
        : path.join(process.cwd(), filepath)
}