var fs = require('fs')
var path = require('path')
var rimraf = require('rimraf')
var mr = require('npm-registry-mock')

var test = require('tap').test
var common = require('../common-tap.js')

var opts = { cwd: common.pkg }
var outfile = path.resolve(common.pkg, '_npmrc')
var responses = {
  'Username': 'u\n',
  'Password': 'p\n',
  'Email': 'u@p.me\n'
}

function verifyStdout (runner, successMessage, t) {
  var remaining = Object.keys(responses).length
  return function (chunk) {
    if (remaining > 0) {
      remaining--

      var label = chunk.toString('utf8').split(':')[0]
      runner.stdin.write(responses[label])

      if (remaining === 0) runner.stdin.end()
    } else {
      var message = chunk.toString('utf8').trim()
      t.equal(message, successMessage)
    }
  }
}

function mocks (server) {
  server.filteringRequestBody(function (r) {
    if (r.match(/"_id":"org\.couchdb\.user:u"/)) {
      return 'auth'
    } else {
      return 'invalid'
    }
  })
  server.post('/-/v1/login', 'invalid').reply(404, 'not found')
  server.put('/-/user/org.couchdb.user:u', 'auth')
    .reply(201, { username: 'u', password: 'p', email: 'u@p.me' })
}

test('npm login', function (t) {
  mr({ port: common.port, plugin: mocks }, function (er, s) {
    var runner = common.npm(
      [
        'login',
        '--registry', common.registry,
        '--loglevel', 'silent',
        '--userconfig', outfile
      ],
      opts,
      function (err, code) {
        t.notOk(code, 'exited OK')
        t.notOk(err, 'no error output')
        var config = fs.readFileSync(outfile, 'utf8')
        t.like(config, /:always-auth=false/, 'always-auth is scoped and false (by default)')
        s.close()
        rimraf(outfile, function (err) {
          t.ifError(err, 'removed config file OK')
          t.end()
        })
      })

    var message = 'Logged in as u on ' + common.registry + '/.'
    runner.stdout.on('data', verifyStdout(runner, message, t))
  })
})

test('npm login --scope <scope> uses <scope>:registry as its URI', function (t) {
  var port = common.port + 1
  var uri = 'http://localhost:' + port + '/'
  var scope = '@myco'
  common.npm(
    [
      'config',
      '--userconfig', outfile,
      'set',
      scope + ':registry',
      uri
    ],
    opts,
    function (err, code) {
      t.notOk(code, 'exited OK')
      t.notOk(err, 'no error output')

      mr({ port: port, plugin: mocks }, function (er, s) {
        var runner = common.npm(
          [
            'login',
            '--loglevel', 'silent',
            '--userconfig', outfile,
            '--scope', scope
          ],
          opts,
          function (err, code) {
            t.equal(code, 0, 'exited OK')
            t.notOk(err, 'no error output')
            var config = fs.readFileSync(outfile, 'utf8')
            t.like(config, new RegExp(scope + ':registry=' + uri), 'scope:registry is set')
            s.close()
            rimraf(outfile, function (err) {
              t.ifError(err, 'removed config file OK')
              t.end()
            })
          })

        var message = 'Logged in as u to scope ' + scope + ' on ' + uri + '.'
        runner.stdout.on('data', verifyStdout(runner, message, t))
      })
    })
})

test('npm login --scope <scope> makes sure <scope> is prefixed by an @', function (t) {
  var port = common.port + 1
  var uri = 'http://localhost:' + port + '/'
  var scope = 'myco'
  var prefixedScope = '@' + scope
  common.npm(
    [
      '--userconfig', outfile,
      'config',
      'set',
      prefixedScope + ':registry',
      uri
    ],
    opts,
    function (err, code) {
      t.notOk(code, 'exited OK')
      t.notOk(err, 'no error output')

      mr({ port: port, plugin: mocks }, function (er, s) {
        var runner = common.npm(
          [
            'login',
            '--loglevel', 'silent',
            '--userconfig', outfile,
            '--scope', scope
          ],
          opts,
          function (err, code) {
            t.notOk(code, 'exited OK')
            t.notOk(err, 'no error output')
            var config = fs.readFileSync(outfile, 'utf8')
            t.like(config, new RegExp(prefixedScope + ':registry=' + uri), 'scope:registry is set')
            s.close()
            rimraf(outfile, function (err) {
              t.ifError(err, 'removed config file OK')
              t.end()
            })
          })

        var message = 'Logged in as u to scope ' + prefixedScope + ' on ' + uri + '.'
        runner.stdout.on('data', verifyStdout(runner, message, t))
      })
    })
})

test('npm login --scope <scope> --registry <registry> uses <registry> as its URI', function (t) {
  var scope = '@myco'
  common.npm(
    [
      '--userconfig', outfile,
      'config',
      'set',
      scope + ':registry',
      'invalidurl'
    ],
    opts,
    function (err, code) {
      t.notOk(code, 'exited OK')
      t.notOk(err, 'no error output')

      mr({ port: common.port, plugin: mocks }, function (er, s) {
        var runner = common.npm(
          [
            'login',
            '--registry', common.registry,
            '--loglevel', 'silent',
            '--userconfig', outfile,
            '--scope', scope
          ],
          opts,
          function (err, code) {
            t.notOk(code, 'exited OK')
            t.notOk(err, 'no error output')
            var config = fs.readFileSync(outfile, 'utf8')
            t.like(config, new RegExp(scope + ':registry=' + common.registry), 'scope:registry is set')
            s.close()
            rimraf(outfile, function (err) {
              t.ifError(err, 'removed config file OK')
              t.end()
            })
          })

        var message = 'Logged in as u to scope ' + scope + ' on ' + common.registry + '/.'
        runner.stdout.on('data', verifyStdout(runner, message, t))
      })
    })
})

test('npm login --always-auth', function (t) {
  mr({ port: common.port, plugin: mocks }, function (er, s) {
    var runner = common.npm(
      [
        'login',
        '--registry', common.registry,
        '--loglevel', 'silent',
        '--userconfig', outfile,
        '--always-auth'
      ],
      opts,
      function (err, code) {
        t.notOk(code, 'exited OK')
        t.notOk(err, 'no error output')
        var config = fs.readFileSync(outfile, 'utf8')
        t.like(config, /:always-auth=true/, 'always-auth is scoped and true')
        s.close()
        rimraf(outfile, function (err) {
          t.ifError(err, 'removed config file OK')
          t.end()
        })
      })

    var message = 'Logged in as u on ' + common.registry + '/.'
    runner.stdout.on('data', verifyStdout(runner, message, t))
  })
})

test('npm login --no-always-auth', function (t) {
  mr({ port: common.port, plugin: mocks }, function (er, s) {
    var runner = common.npm(
      [
        'login',
        '--registry', common.registry,
        '--loglevel', 'silent',
        '--userconfig', outfile,
        '--no-always-auth'
      ],
      opts,
      function (err, code) {
        t.notOk(code, 'exited OK')
        t.notOk(err, 'no error output')
        var config = fs.readFileSync(outfile, 'utf8')
        t.like(config, /:always-auth=false/, 'always-auth is scoped and false')
        s.close()
        rimraf(outfile, function (err) {
          t.ifError(err, 'removed config file OK')
          t.end()
        })
      })

    var message = 'Logged in as u on ' + common.registry + '/.'
    runner.stdout.on('data', verifyStdout(runner, message, t))
  })
})

test('cleanup', function (t) {
  rimraf.sync(outfile)
  t.pass('cleaned up')
  t.end()
})
