import {execSync, ExecSyncOptions, spawnSync} from 'child_process'
import {als} from './context'

/**
 * Executes a shell command using the current context's working directory.
 * Thread-safe for Probot.
 * @deprecated Use prixSpawn for new code to avoid RCE risks
 */
export const prixExec = (
  command: string,
  options: ExecSyncOptions = {}
): string => {
  const context = als.getStore()
  const cwd = options.cwd || context?.workingDir || process.cwd()

  const result = execSync(command, {
    ...options,
    cwd,
    encoding: 'utf8'
  })

  return result ? result.toString() : ''
}

/**
 * SAFER: Executes a command using spawn with argument array.
 * Prevents shell injection by not using shell string interpolation.
 * Thread-safe for Probot.
 */
export const prixSpawn = (
  cmd: string,
  args: string[] = [],
  options: {cwd?: string; env?: NodeJS.ProcessEnv} = {}
): {stdout: string; stderr: string; status: number | null} => {
  const context = als.getStore()
  const cwd = options.cwd || context?.workingDir || process.cwd()

  const result = spawnSync(cmd, args, {
    cwd,
    env: {...process.env, ...options.env},
    encoding: 'utf8',
    maxBuffer: 10 * 1024 * 1024 // 10MB buffer
  })

  return {
    stdout: result.stdout || '',
    stderr: result.stderr || '',
    status: result.status
  }
}

export const sleep = (ms: number): Promise<void> => {
  return new Promise(resolve => setTimeout(resolve, ms))
}

/**
 * Safely quotes a string for use in a shell command.
 */
export const quote = (s: string): string => {
  if (process.platform === 'win32') {
    // Windows PowerShell/CMD quoting
    return `"${s.replace(/"/g, '""')}"`
  }
  // POSIX shell quoting
  return `'${s.replace(/'/g, "'\\''")}'`
}