import { spawn } from 'child_process'

export const CONTAINERS_ROOT = '/tmp/phc-run/containers'

export const getContainerPath = (ns, uuid) => `${CONTAINERS_ROOT}/${ns}/${uuid}`

export function runCommand(command, args, options = {}) {
    options.stdin ??= null
    options.capture ??= ['stdout', 'stderr']

    console.log(`Running: ${command} ${JSON.stringify(args)}`)

    return new Promise((resolve, reject) => {
        const child = spawn(command, args)

        let output = ''

        if (options.capture.includes('stdout')) {
            child.stdout.on('data', data => {
                console.log('[command]', '[stdout]', JSON.stringify(data.toString()))
                output += data.toString()
            })
        }

        if (options.capture.includes('stderr')) {
            child.stderr.on('data', data => {
                console.log('[command]', '[stderr]', JSON.stringify(data.toString()))
                output += data.toString()
            })
        }

        if (options.stdin) {
            console.log('[command]', '[stdin]', options.stdin)

            child.stdin.setDefaultEncoding('utf8')
            child.stdin.write(options.stdin)
            child.stdin.end()
        }

        child.on('close', code => {
            if (code === 0) {
                resolve(output)
            } else {
                reject(new Error(`Command failed with code ${code}: ${output}`))
                console.error('Command error:', output)
            }
        })
    })
}