import assertProject, {isExecutable} from '@pnpm/assert-project'
import sinon = require('sinon')
import tape = require('tape')
import promisifyTape from 'tape-promise'
const test = promisifyTape(tape)
const testOnly = promisifyTape(tape.only)
import ncpCB = require('ncp')
import path = require('path')
import promisify = require('util.promisify')
import {
  pathToLocalPkg,
  prepare,
  testDefaults,
 } from './utils'
const ncp = promisify(ncpCB.ncp)
import exists = require('path-exists')
import {
  installPkgs,
  link,
  linkFromGlobal,
  linkToGlobal,
  RootLog,
} from 'supi'
import writeJsonFile = require('write-json-file')

test('relative link', async (t: tape.Test) => {
  const project = prepare(t, {
    dependencies: {
      'hello-world-js-bin': '*',
    },
  })

  const linkedPkgName = 'hello-world-js-bin'
  const linkedPkgPath = path.resolve('..', linkedPkgName)

  await ncp(pathToLocalPkg(linkedPkgName), linkedPkgPath)
  await link([`../${linkedPkgName}`], path.join(process.cwd(), 'node_modules'), await testDefaults())

  await project.isExecutable('.bin/hello-world-js-bin')

  // The linked package has been installed successfully as well with bins linked
  // to node_modules/.bin
  const linkedProject = assertProject(t, linkedPkgPath)
  await linkedProject.isExecutable('.bin/cowsay')

  const wantedShrinkwrap = await project.loadShrinkwrap()
  t.equal(wantedShrinkwrap.dependencies['hello-world-js-bin'], 'link:../hello-world-js-bin', 'link added to wanted shrinkwrap')
  t.equal(wantedShrinkwrap.specifiers['hello-world-js-bin'], '*', 'specifier of linked dependency added to shrinkwrap.yaml')

  const currentShrinkwrap = await project.loadCurrentShrinkwrap()
  t.equal(currentShrinkwrap.dependencies['hello-world-js-bin'], 'link:../hello-world-js-bin', 'link added to wanted shrinkwrap')
})

test('relative link is not rewritten by install', async (t: tape.Test) => {
  const project = prepare(t)

  const linkedPkgName = 'hello-world-js-bin'
  const linkedPkgPath = path.resolve('..', linkedPkgName)

  await ncp(pathToLocalPkg(linkedPkgName), linkedPkgPath)
  await link([`../${linkedPkgName}`], path.join(process.cwd(), 'node_modules'), await testDefaults())

  const reporter = sinon.spy()

  await installPkgs(['hello-world-js-bin'], await testDefaults({reporter}))

  t.ok(project.requireModule('hello-world-js-bin/package.json').isLocal)

  t.ok(reporter.calledWithMatch({
    level: 'debug',
    linked: {
      from: linkedPkgPath,
      name: 'hello-world-js-bin',
      to: path.resolve('node_modules'),
      // TODO: the dependencyType should be `undefined` in this case
    },
    name: 'pnpm:root',
  } as RootLog), 'linked root dependency logged')

  const wantedShrinkwrap = await project.loadShrinkwrap()
  t.equal(wantedShrinkwrap.dependencies['hello-world-js-bin'], 'link:../hello-world-js-bin', 'link still in wanted shrinkwrap')

  const currentShrinkwrap = await project.loadCurrentShrinkwrap()
  t.equal(currentShrinkwrap.dependencies['hello-world-js-bin'], 'link:../hello-world-js-bin', 'link still in wanted shrinkwrap')
})

test('global link', async (t: tape.Test) => {
  const project = prepare(t)
  const projectPath = process.cwd()

  const linkedPkgName = 'hello-world-js-bin'
  const linkedPkgPath = path.resolve('..', linkedPkgName)

  await ncp(pathToLocalPkg(linkedPkgName), linkedPkgPath)

  process.chdir(linkedPkgPath)
  const globalPrefix = path.resolve('..', 'global')
  const globalBin = path.resolve('..', 'global', 'bin')
  await linkToGlobal(process.cwd(), await testDefaults({globalPrefix, globalBin}))

  await isExecutable(t, path.join(globalBin, 'hello-world-js-bin'))

  // bins of dependencies should not be linked, see issue https://github.com/pnpm/pnpm/issues/905
  t.notOk(await exists(path.join(globalBin, 'cowsay')), 'cowsay not linked')
  t.notOk(await exists(path.join(globalBin, 'cowthink')), 'cowthink not linked')

  process.chdir(projectPath)

  await linkFromGlobal([linkedPkgName], process.cwd(), await testDefaults({globalPrefix}))

  await project.isExecutable('.bin/hello-world-js-bin')
})

test('failed linking should not create empty folder', async (t: tape.Test) => {
  prepare(t)

  const globalPrefix = path.resolve('..', 'global')

  try {
    await linkFromGlobal(['does-not-exist'], process.cwd(), await testDefaults({globalPrefix}))
    t.fail('should have failed')
  } catch (err) {
    t.notOk(await exists(path.join(globalPrefix, 'node_modules', 'does-not-exist')))
  }
})

test('node_modules is pruned after linking', async (t: tape.Test) => {
  const project = prepare(t)

  await writeJsonFile('../is-positive/package.json', {name: 'is-positive', version: '1.0.0'})

  await installPkgs(['is-positive@1.0.0'], await testDefaults())

  t.ok(await exists('node_modules/.localhost+4873/is-positive/1.0.0/node_modules/is-positive/package.json'))

  await link(['../is-positive'], path.resolve('node_modules'), await testDefaults())

  t.notOk(await exists('node_modules/.localhost+4873/is-positive/1.0.0/node_modules/is-positive/package.json'), 'pruned')
})