import fs from 'node:fs'
import path from 'node:path'

import { expect, jest, test } from '@jest/globals'
import type { VerifyDepsBeforeRun } from '@pnpm/config.reader'
import { prepare } from '@pnpm/prepare'

import { DEFAULT_OPTS } from './utils/index.js'

const originalModule = await import('@pnpm/logger')
jest.unstable_mockModule('@pnpm/logger', () => {
  return {
    ...originalModule,
    globalWarn: jest.fn(),
  }
})

jest.unstable_mockModule('@inquirer/prompts', () => {
  class Separator {
    separator: string
    readonly type = 'separator' as const
    constructor (separator: string) {
      this.separator = separator
    }
  }
  return {
    Separator,
    checkbox: jest.fn(),
    confirm: jest.fn(),
    input: jest.fn(),
    password: jest.fn(),
    select: jest.fn(),
  }
})

const { run } = await import('@pnpm/exec.commands')
const { confirm } = await import('@inquirer/prompts')
const { globalWarn } = await import('@pnpm/logger')

const mockConfirm = jest.mocked(confirm)

const rootProjectManifest = {
  name: 'root',
  private: true,
  dependencies: {
    'is-positive': '1.0.0',
  },
  scripts: {
    test: 'echo hello from script',
  },
}

async function runTest (verifyDepsBeforeRun: VerifyDepsBeforeRun): Promise<void> {
  await run.handler({
    ...DEFAULT_OPTS,
    bin: 'node_modules/.bin',
    dir: process.cwd(),
    extraBinPaths: [],
    extraEnv: {},
    pnpmHomeDir: '',
    verifyDepsBeforeRun,
    rootProjectManifest,
    rootProjectManifestDir: process.cwd(),
  }, ['test'])
}

test('throw an error if verifyDepsBeforeRun is set to error', async () => {
  prepare(rootProjectManifest)

  let err!: Error
  try {
    await runTest('error')
  } catch (_err) {
    err = _err as Error
  }
  expect(err.message).toContain('Cannot check whether dependencies are outdated')
})

test('install the dependencies if verifyDepsBeforeRun is set to install', async () => {
  prepare(rootProjectManifest)

  await runTest('install')

  expect(fs.existsSync(path.resolve('node_modules'))).toBeTruthy()
})

test('log a warning if verifyDepsBeforeRun is set to warn', async () => {
  prepare(rootProjectManifest)

  await runTest('warn')

  expect(globalWarn).toHaveBeenCalledWith(
    expect.stringContaining('Your node_modules are out of sync with your lockfile')
  )
  expect(fs.existsSync(path.resolve('node_modules'))).toBeFalsy()
})

test('prompt the user if verifyDepsBeforeRun is set to prompt', async () => {
  prepare(rootProjectManifest)

  mockConfirm.mockResolvedValue(true)

  const originalIsTTY = process.stdin.isTTY
  Object.defineProperty(process.stdin, 'isTTY', { value: true, configurable: true })

  try {
    await runTest('prompt')
  } finally {
    Object.defineProperty(process.stdin, 'isTTY', { value: originalIsTTY, configurable: true })
  }

  expect(mockConfirm).toHaveBeenCalledWith(
    expect.objectContaining({
      message: expect.stringContaining(
        'Your "node_modules" directory is out of sync with the "pnpm-lock.yaml" file'
      ),
      default: true,
    })
  )

  expect(fs.existsSync(path.resolve('node_modules'))).toBeTruthy()
})

test('throw an error if verifyDepsBeforeRun is set to prompt in non-TTY environment', async () => {
  prepare(rootProjectManifest)

  // Mock non-TTY environment
  const originalIsTTY = process.stdin.isTTY
  Object.defineProperty(process.stdin, 'isTTY', { value: false, configurable: true })

  let err!: Error
  try {
    await runTest('prompt')
  } catch (_err) {
    err = _err as Error
  } finally {
    // Restore original value
    Object.defineProperty(process.stdin, 'isTTY', { value: originalIsTTY, configurable: true })
  }

  expect(err.message).toContain('Cannot check whether dependencies are outdated')
  expect(fs.existsSync(path.resolve('node_modules'))).toBeFalsy()
})