 _ = require 'underscore-plus'
 async = require 'async'
 
-# TODO: This should really be parallel on every platform, however:
-# - On Windows, our fixtures step on each others toes.
-if process.platform is 'win32'
-  concurrency = 1
-else
-  concurrency = 2
-
 module.exports = (grunt) ->
   {isAtomPackage, spawn} = require('./task-helpers')(grunt)
 
   packageSpecQueue = null
 
-  logDeprecations = (label, {stderr}={}) ->
-    stderr ?= ''
-    deprecatedStart = stderr.indexOf('Calls to deprecated functions')
-    return if deprecatedStart is -1
-
-    grunt.log.error(label)
-    stderr = stderr.substring(deprecatedStart)
-    stderr = stderr.replace(/^\s*\[[^\]]+\]\s+/gm, '')
-    stderr = stderr.replace(/source: .*$/gm, '')
-    stderr = stderr.replace(/^"/gm, '')
-    stderr = stderr.replace(/",\s*$/gm, '')
-    grunt.log.error(stderr)
-
   getAppPath = ->
     contentsDir = grunt.config.get('atom.contentsDir')
-    switch process.platform
-      when 'darwin'
-        path.join(contentsDir, 'MacOS', 'Atom')
-      when 'linux'
-        path.join(contentsDir, 'atom')
-      when 'win32'
-        path.join(contentsDir, 'atom.exe')
+    path.join(contentsDir, 'MacOS', 'Atom')
 
   runPackageSpecs = (callback) ->
     failedPackages = []

      continue unless isAtomPackage(packagePath)
      packageSpecQueue.push(packagePath)

    packageSpecQueue.concurrency = Math.max(1, concurrency - 1)
    packageSpecQueue.drain = -> callback(null, failedPackages)

  runCoreSpecs = (callback, logOutput = false) ->
    appPath = getAppPath()
    resourcePath = process.cwd()
    coreSpecsPath = path.resolve('spec')

    if process.platform in ['darwin', 'linux']
      options =
        cmd: appPath
        args: ['--test', "--resource-path=#{resourcePath}", coreSpecsPath, "--user-data-dir=#{temp.mkdirSync('atom-user-data-dir')}"]
        opts:
          env: _.extend({}, process.env,
            ATOM_INTEGRATION_TESTS_ENABLED: true
          )

    else if process.platform is 'win32'
      options =
        cmd: process.env.comspec
        args: ['/c', appPath, '--test', "--resource-path=#{resourcePath}", '--log-file=ci.log', coreSpecsPath]
        opts:
          env: _.extend({}, process.env,
            ATOM_INTEGRATION_TESTS_ENABLED: true
          )

    if logOutput
      options.opts.stdio = 'inherit'

    grunt.log.ok "Launching core specs."
    spawn options, (error, results, code) ->
      if process.platform is 'win32'
        process.stderr.write(fs.readFileSync('ci.log')) if error
        fs.unlinkSync('ci.log')
      else
        # TODO: Restore concurrency on Windows
        packageSpecQueue?.concurrency = concurrency
        logDeprecations('Core Specs', results)

      callback(null, error)

  grunt.registerTask 'run-specs', 'Run the specs', ->
    done = @async()
    startTime = Date.now()
    method =
      if concurrency is 1
        async.series
      else
        async.parallel

    # If we're just running the core specs then we won't have any output to
    # indicate the tests actually *are* running. This upsets Travis:
    # https://github.com/atom/atom/issues/10837. So pass the test output
    # through.
    runCoreSpecsWithLogging = (callback) -> runCoreSpecs(callback, true)

    specs =
      if process.env.ATOM_SPECS_TASK is 'packages'
        [runPackageSpecs]
      else if process.env.ATOM_SPECS_TASK is 'core'
        [runCoreSpecsWithLogging]
      else
        [runCoreSpecs, runPackageSpecs]

    method specs, (error, results) ->
      failedPackages = []
      coreSpecFailed = null


        [coreSpecFailed, failedPackages] = results

      elapsedTime = Math.round((Date.now() - startTime) / 100) / 10
      grunt.log.ok("Total spec time: #{elapsedTime}s")
      failures = failedPackages
      failures.push "atom core" if coreSpecFailed

      grunt.log.error("[Error]".red + " #{failures.join(', ')} spec(s) failed") if failures.length > 0

      done(not coreSpecFailed and failedPackages.length is 0)
