import path from 'path'
import fs from 'fs-extra'
import execa from 'execa'
import log, { logBlankLine } from './log'
import { isMac, isCloud } from './env'
import { logError } from './error'

export function binExistsSync({
  cwd = process.cwd(),
  bin,
}: {
  cwd?: string
  bin: string
}) {
  return fs.existsSync(path.join(cwd, 'node_modules', bin))
}

export function resolveBin({
  cwd = process.cwd(),
  bin,
}: {
  cwd?: string
  bin: string
}): string {
  if (path.isAbsolute(bin)) {
    return bin
  }
  const absBinPath = path.join(cwd, 'node_modules', bin)
  if (!fs.existsSync(absBinPath)) {
    log.error('bin', 'resolveBin err, could not find ' + absBinPath)
    process.exit(1)
  }
  return absBinPath
}

export interface execBinOptions {
  global?: boolean
  binPath?: string
  // alias to binPath
  bin?: string
  args?: string[]
  // default to bin
  binName?: string
  // alias to binName
  name?: string
  cwd?: string
  exitWhenErr?: boolean
}

export async function execBin({
  global,
  binPath,
  bin = binPath,
  args,
  binName = bin || binPath,
  name = binName,
  cwd,
  exitWhenErr = true,
}: execBinOptions) {
  try {
    if (!bin) {
      throw new Error('bin is needed')
    }
    args = args || []
    let absBinPath = global ? bin : resolveBin({ cwd, bin })

    // global args
    if (global && !args.length) {
      args = process.argv.slice(3)
    }

    // 使用项目自带的 tnpm node 来统一执行环境, 只统一 mac 即可
    // win 太麻烦了, 别管了
    // 云环境执行的是 tnpm run build, 会使用自带的 node, 所以不用管
    const binNode = 'node/bin/node'
    if (isMac && !isCloud && !global && binExistsSync({ cwd, bin: binNode })) {
      // !!! order maters
      args.unshift(absBinPath)
      absBinPath = resolveBin({ cwd, bin: binNode })
    }

    logBlankLine()
    log.info('bin', absBinPath + ' ' + args.join(' '))

    await execa(absBinPath, args, { cwd, stdio: 'inherit' })
  } catch (err: unknown) {
    log.error('bin', `execBin err, ${name || ''}`)
    console.error(err) // eslint-disable-line no-console
    if (exitWhenErr !== false) {
      log.error('bin', 'process exit 1') // eslint-disable-line no-console
      // 调用 process.exit 不生效, process 还是正常退出了, 额外指定一下 process.exitCode 有效, WTF
      process.exitCode = 42
      process.exit(42)
    }
  }
}

export async function execGlobalBin(options: execBinOptions) {
  return execBin({ ...options, global: true })
}