#!/usr/bin/env ruby

require 'rubygems'
require 'nixenvironment'
require 'commander/import'
require 'yaml'
require 'fileutils'
require 'shellwords'

include Nixenvironment

# :name is optional, otherwise uses the basename of this executable
program :name, 'nixenvironment'
program :version, VERSION
program :description, 'NIX projects build and deploy utility'

global_option ('--project_to_build VALUE') { |value| $project_to_build = value }
global_option ('--project_target_to_build VALUE') { |value| $project_target_to_build = value }
global_option ('--project_target_to_test VALUE') { |value| $project_target_to_test = value }

global_option ('--workspace_to_build VALUE') { |value| $workspace_to_build = value }
global_option ('--workspace_scheme_to_build VALUE') { |value| $workspace_scheme_to_build = value }
global_option ('--workspace_scheme_to_test VALUE') { |value| $workspace_scheme_to_test = value }

global_option ('--sdk VALUE') { |value| $sdk = value }
global_option ('--sdk_for_tests VALUE') { |value| $sdk_for_tests = value }

global_option ('--exclude_pattern_for_code_coverage VALUE') { |value| $exclude_pattern_for_code_coverage = value }
global_option ('--exclude_pattern_for_code_duplication VALUE') { |value| $exclude_pattern_for_code_duplication = value }

global_option ('--deploy_host VALUE') { |value| $deploy_host = value }
global_option ('--deploy_path VALUE') { |value| $deploy_path = value }
global_option ('--deploy_username VALUE') { |value| $deploy_username = value }
global_option ('--deploy_password VALUE') { |value| $deploy_password = value }
global_option ('--deploy_itunesconnect_username VALUE') { |value| $deploy_itunesconnect_username = value }

global_option ('--icons_path VALUE') { |value| $icons_path = value }

global_option ('--xctest_destination_device VALUE') { |value| $xctest_destination_device = value }

global_option ('--configuration_files_path VALUE') { |value| $configuration_files_path = value }
global_option ('--code_coverage_configuration VALUE') { |value| $code_coverage_configuration = value }
global_option ('--code_coverage_output_directory VALUE') { |value| $code_coverage_output_directory = value }

global_option ('--env_var_prefix VALUE') { |value| $env_var_prefix = value }

global_option ('--bundle_id VALUE') { |value| $bundle_id = value }
global_option ('--resigned_bundle_id VALUE') { |value| $resigned_bundle_id= value }
global_option ('--resigned_bundle_name VALUE') { |value| $resigned_bundle_name = value }
global_option ('--resigned_entitlements_path VALUE') { |value| $resigned_entitlements_path = value }

command :update do |c|
  c.syntax = 'nixenvironment update'
  c.description = 'Install or update ninbas and other environment stuff'
  c.option '--ninbas NAME', String, 'Select ninbas branch, tag or revision to clone'
  c.action do |args, options|
    update(options.ninbas)
  end
end

command :build do |c|
  c.syntax = 'nixenvironment build [options]'
  c.description = 'Build project for selected configuration and make signed/resigned ipa'
  c.option '--config NAME', String, 'Select configuration'
  c.option '--ipa TYPES', String, 'Select sign (device, resigned_device, resigned_adhoc, resigned_appstore)'
  c.option '--ci_build', 'Define NIXENV_CI_BUILD environment variable'
  c.option '--unity_path PATH', String, 'Select unity executable path (UNITY, UNITY_4 or custom path)'
  c.option '--development_build', 'Enable Developmen flag in Unity project'
  c.option '--keystore_path PATH', String, 'Specify the path to .keystore file'
  c.option '--keystore_password PASSWORD', String, 'Specify the password for accessing a .keystore file'
  c.option '--key_alias_name NAME', String, 'Specify the alias name which should be used from .keystore file to sign a release version of an APK'
  c.option '--key_alias_password PASSWORD', String, 'Specify the password for accessing an alias name'
  c.option '--unity_platform TARGET PLATFORM', String, 'Select target platform for unity build (ios or android)'
  c.option '--ndsym', 'Disable .dsym generation for ios project'
  c.option '--icon_tagger MODE', String, 'Set XcodeIconTagger mode (full, short, off)'
  c.action do |args, options|
    options.default :config => 'Debug', :ipa => 'device', :icon_tagger => 'full', :unity_path => 'UNITY'

    need_to_build_ios = true
    is_unity_platform = options.unity_platform and options.unity_platform.length > 0

    if is_unity_platform
      unity_path = ENV[options.unity_path].nil? ? options.unity_path : ENV[options.unity_path]
      need_to_build_ios, root_working_dir, need_chdir_to_root_working_dir = unity_build(options.config, options.unity_platform, unity_path, options.development_build, options.keystore_path, options.keystore_password, options.key_alias_name, options.key_alias_password)
    end

    if need_to_build_ios
      begin
        read_config_settings

        if is_unity_platform
          @config_settings['ICONS_PATH'] = 'Unity-iPhone/Images.xcassets' unless $icons_path
        elsif @config_settings['WORKSPACE_TO_BUILD'] and @config_settings['WORKSPACE_TO_BUILD'].length > 0
          scheme = @config_settings['WORKSPACE_SCHEME_TO_BUILD']
          abort("Build error! Scheme #{scheme} doesn't exist") unless xcode_project_contains_scheme?(scheme)
        end

        enable_ci_build(options.ci_build)
        supplement_config_settings(options.config)
        prebuild(options.config)
        build(options.config, options.ipa, options.ndsym, options.icon_tagger)
        restore_info_plist
      rescue
        raise # re-rise exception but chdir to root_working_dir in ensure block first if needed
      ensure
        if need_chdir_to_root_working_dir and root_working_dir
          Dir.chdir(root_working_dir)
        end
      end
    end
  end
end

command :deploy do |c|
  c.syntax = 'nixenvironment deploy'
  c.description = 'Deploy built artifacts to given server'
  c.option '--unity_platform TARGET PLATFORM', String, 'Select target platform for unity deploy (ios or android)'
  c.option '--deliver_deploy', 'Not only verify but also submit the build on iTunes Connect. (resigned_appstore builds only)'
  c.action do |args, options|
    need_to_deploy_ios = true

    if options.unity_platform and options.unity_platform.length > 0
      need_to_deploy_ios, root_working_dir, need_chdir_to_root_working_dir = unity_deploy(options.unity_platform)
    end

    if need_to_deploy_ios
      begin
        read_config_settings
        deploy(options.deliver_deploy)
      rescue
        raise # re-rise exception but chdir to root_working_dir in ensure block first if needed
      ensure
        if need_chdir_to_root_working_dir and root_working_dir
          Dir.chdir(root_working_dir)
        end
      end
    end
  end
end

command :clean do |c|
  c.syntax = 'nixenvironment clean'
  c.description = 'Remove temp files and clean all targets for xcode project'
  c.action do |args, options|
    clean
  end
end

command :test do |c|
  c.syntax = 'nixenvironment test'
  c.description = 'Build xctest unit tests and run them in simulator'
  c.action do |args, options|
    read_config_settings
    test
  end
end

command :code_coverage do |c|
  c.syntax = 'nixenvironment code_coverage'
  c.description = 'Generate xctest unit tests code coverage report'
  c.action do |args, options|
    read_config_settings
    code_coverage
  end
end

command :code_duplication_report do |c|
  c.syntax = 'nixenvironment code_duplication_report'
  c.description = 'Generate code duplication report'
  c.action do |args, options|
    read_config_settings
    code_duplication_report
  end
end

command :tag do |c|
  c.syntax = 'nixenvironment tag'
  c.description = 'Make SVN/git/mercurial tag, SCM_USERNAME and SCM_PASSWORD must be defined on calling this target'
  c.action do |args, options|
    tag
  end
end

command :svn_tag_from_jenkins do |c|
  c.syntax = 'nixenvironment svn_tag_from_jenkins'
  c.description = 'Make tag by finding the first credential in local credential storage'
  c.action do |args, options|
    svn_tag_from_jenkins
  end
end

command :clean_working_copy do |c|
  c.syntax = 'nixenvironment clean_working_copy'
  c.description = 'Make working copy clean'
  c.option '--all', 'Remove ignored files too'
  c.action do |args, options|
    clean_working_copy(options.all)
  end
end

def update(ninbas)
  root_working_directory = Dir.pwd
  target_directory = File.join(Dir.home, NIXENV_ROOT)

  begin
    Dir.mkdir(target_directory) unless Dir.exist?(target_directory)
    Dir.chdir(target_directory)

    REPO_LIST.each do |repo_name, repo_url|
      unless Dir.exist?(repo_name)
        clone_success = system("git clone #{repo_url} --recursive")
        unless clone_success
          p("Authentication failed for #{repo_name} project!")
          next
        end
      end

      Dir.chdir(repo_name)

      if repo_name == BUILD_SCRIPTS
        if ninbas
          system("git checkout #{ninbas}")
          Dir.chdir('..')
          next
        end
      end

      system("git fetch -t")
      tags = IO.popen('git tag').readlines
      tags.map! { |tag| tag.strip! }
      tags.sort_by!(&:to_i)

      if tags.size > 0
        p("Checkout newest #{repo_name} tag...")
        system("git checkout #{tags.last}")
      else
        abort("Error checkout #{repo_name}! There is no tags!")
      end

      p("Checkout #{repo_name} #{tags.last} tag success!")

      Dir.chdir('..')
    end
  rescue
    @error_message = "#{$!}"
  ensure
    p(@error_message) if @error_message
    Dir.chdir(root_working_directory)
  end
end

def read_config_settings
  begin
    @config_settings = YAML.load(File.read(File.join(File.dirname(__FILE__), 'Config')))
  rescue
    abort('Config file processing error!')
  end

  update_config_settings('PROJECT_TO_BUILD',                      $project_to_build)
  update_config_settings('PROJECT_TARGET_TO_BUILD',               $project_target_to_build)
  update_config_settings('PROJECT_TARGET_TO_TEST',                $project_target_to_test)
  update_config_settings('WORKSPACE_TO_BUILD',                    $workspace_to_build)
  update_config_settings('WORKSPACE_SCHEME_TO_BUILD',             $workspace_scheme_to_build)
  update_config_settings('WORKSPACE_SCHEME_TO_TEST',              $workspace_scheme_to_test)
  update_config_settings('SDK',                                   $sdk)
  update_config_settings('SDK_FOR_TESTS',                         $sdk_for_tests)
  update_config_settings('EXCLUDE_PATTERN_FOR_CODE_COVERAGE',     $exclude_pattern_for_code_coverage)
  update_config_settings('EXCLUDE_PATTERN_FOR_CODE_DUPLICATION',  $exclude_pattern_for_code_duplication)
  update_config_settings('DEPLOY_HOST',                           $deploy_host)
  update_config_settings('DEPLOY_PATH',                           $deploy_path)
  update_config_settings('DEPLOY_USERNAME',                       $deploy_username)
  update_config_settings('DEPLOY_PASSWORD',                       $deploy_password)
  update_config_settings('DEPLOY_ITUNESCONNECT_USERNAME',         $deploy_itunesconnect_username)
  update_config_settings('ICONS_PATH',                            $icons_path)
  update_config_settings('XCTEST_DESTINATION_DEVICE',             $xctest_destination_device)
  update_config_settings('CONFIGURATION_FILES_PATH',              $configuration_files_path)
  update_config_settings('CODE_COVERAGE_CONFIGURATION',           $code_coverage_configuration)
  update_config_settings('CODE_COVERAGE_OUTPUT_DIRECTORY',        $code_coverage_output_directory)
  update_config_settings('ENV_VAR_PREFIX',                        $env_var_prefix)
  update_config_settings('BUNDLE_ID',                             $bundle_id)
  update_config_settings('RESIGNED_BUNDLE_ID',                    $resigned_bundle_id)
  update_config_settings('RESIGNED_BUNDLE_NAME',                  $resigned_bundle_name)
  update_config_settings('RESIGNED_ENTITLEMENTS_PATH',            $resigned_entitlements_path)
end

def update_config_settings(key, value)
  if value
    @config_settings[key] = value
    p("#{key} |SPECIFIED| directly: #{value}")
  else
    p("#{key} |NOT specified| directly. Used from Config: #{@config_settings[key]}")
  end
end

def enable_ci_build(ci_build)
  if ci_build
    ENV['NIXENV_CI_BUILD'] = '1'
    p('CI_BUILD enabled.')
  else
    ENV['NIXENV_CI_BUILD'] = nil
    p('CI_BUILD disabled.')
  end
end

def working_copy_is_clean?
  system("
  LAST_REVISION_FILE=\"_last_revision.sh\"

  source ${LAST_REVISION_FILE}

  if [ ${WORKING_COPY_IS_CLEAN} -eq 1 ]; then
    echo \"Working copy is clean. Continuing...\"
  else
    echo \"error: working copy must not have local modifications.\" 1>&2
    echo \"You must add following files and folders to .gitignore:\"
    echo \"$(git status --porcelain)\"
    exit 1
  fi")
end

def supplement_config_settings(config)
  abort("Build error! Configuration #{config} doesn't exist") unless xcode_project_contains_config?(config)

  if @config_settings['PROJECT_TO_BUILD'] and @config_settings['PROJECT_TO_BUILD'].length > 0
    if @config_settings['PROJECT_TARGET_TO_BUILD'] and @config_settings['PROJECT_TARGET_TO_BUILD'].length > 0
      cmd_output = %x[ xcodebuild -project \"#{@config_settings['PROJECT_TO_BUILD']}\"\
                                  -target \"#{@config_settings['PROJECT_TARGET_TO_BUILD']}\"\
                                  -configuration \"#{config}\"\
                                  -sdk \"#{@config_settings['SDK']}\"\
                                  -showBuildSettings ]
    else
      cmd_output = %x[ xcodebuild -project \"#{@config_settings['PROJECT_TO_BUILD']}\"\
                                  -scheme \"#{@config_settings['WORKSPACE_SCHEME_TO_BUILD']}\"\
                                  -configuration \"#{config}\"\
                                  -sdk \"#{@config_settings['SDK']}\"\
                                  -showBuildSettings ]
    end
  elsif @config_settings['WORKSPACE_TO_BUILD'] and @config_settings['WORKSPACE_TO_BUILD'].length > 0
    cmd_output = %x[ xcodebuild -workspace \"#{@config_settings['WORKSPACE_TO_BUILD']}\"\
                                -scheme \"#{@config_settings['WORKSPACE_SCHEME_TO_BUILD']}\"\
                                -configuration \"#{config}\"\
                                -sdk \"#{@config_settings['SDK']}\"\
                                -showBuildSettings ]

    @unescaped_watchkit_extension_product_settings_path = unescaped_product_settings_path(' WatchKit Extension', config)
    @unescaped_watchkit_app_product_settings_path = unescaped_product_settings_path(' WatchKit App', config)
  else
    abort('Build error! Either PROJECT_TO_BUILD or WORKSPACE_TO_BUILD must be specified!')
  end

  # $? - last cmd exit code
  unless $? == 0
    abort('Build error!')
  end

  # Parse build settings
  env_vars_list = cmd_output.split(/\n/).reject(&:empty?)

  if env_vars_list and env_vars_list.length > 0
    build_settings_to_strip = Hash[env_vars_list.map { |it| it.split('=', 2) }]
    build_settings_to_strip.each do |key, value|
      if key and value
        stripped_key = key.strip
        stripped_value = value.strip

        # TODO: investigate and fix me! Brutal hack with PRODUCT_SETTINGS_PATH because ruby File & FileUtils can't work with escaped paths
        if stripped_key == 'PRODUCT_SETTINGS_PATH'
          @unescaped_product_settings_path = stripped_value
        end

        @config_settings[stripped_key] ||= stripped_value.shellescape # Assign new value only if assignee is nil
      end
    end
  end

  build_directory = File.join(Dir.pwd, 'build').shellescape
  @config_settings['CONFIGURATION_BUILD_DIR'] = build_directory
  @config_settings['BUILT_PRODUCTS_DIR'] = build_directory
  @config_settings['DWARF_DSYM_FOLDER_PATH'] = build_directory

  plist_path = @unescaped_product_settings_path
  bundle_display_name =  %x[ /usr/libexec/PlistBuddy -c 'Print CFBundleDisplayName' '#{plist_path}' ].strip!
  @config_settings['RESIGNED_BUNDLE_NAME'] ||= bundle_display_name.shellescape
end

def unescaped_product_settings_path(scheme_suffix, config)
  scheme = @config_settings['WORKSPACE_SCHEME_TO_BUILD'] + scheme_suffix
  if xcode_project_contains_scheme?(scheme)
    cmd_output = %x[ xcodebuild -workspace \"#{@config_settings['WORKSPACE_TO_BUILD']}\"\
                                -scheme \"#{scheme}\"\
                                -showBuildSettings ]
    # Parse build settings
    env_vars_list = cmd_output.split(/\n/).reject(&:empty?)
    if env_vars_list and env_vars_list.length > 0
      build_settings_to_strip = Hash.new.compare_by_identity
      env_vars_list.each do |it|
        key_value = it.split('=', 2)
        build_settings_to_strip[key_value[0]] = key_value[1]
      end

      build_settings_to_strip.each do |key, value|
        if key and value
          stripped_key = key.strip
          stripped_value = value.strip
          if stripped_key == 'PRODUCT_SETTINGS_PATH'
            if stripped_value.include?(scheme_suffix)
              return stripped_value
            end
          end
        end
      end
    end
  end

  nil
end

def xcode_project_contains_config?(config)
  xcode_project_info['Build Configurations'].include?(config)
end

def xcode_project_contains_scheme?(scheme)
  xcode_project_info['Schemes'].include?(scheme)
end

def xcode_project_info
  # Parse information about project
  cmd_output = %x[ xcodebuild -list 2>&1 ]
  abort("Getting xcode_project_info error! #{cmd_output}") if cmd_output.include?('error')

  cmd_output = cmd_output.lines[1..-1].join # Get all lines except first in order to ignore description message

  info = {}

  cmd_output.split(/\n\n/).each do |pair|
    key,value = pair.split(/:/)
    next unless key and value
    lines = value.lines.map { |line| line.strip }
    lines.reject! { |line| line.empty? }
    info[key.strip] = lines
  end

  info
end

def save_build_env_vars
  app_product = File.join(@config_settings['BUILT_PRODUCTS_DIR'], @config_settings['EXECUTABLE_NAME']) + '.app'

  system("
echo \"#!/bin/sh\
### AUTOGENERATED BY Nixenvironment; DO NOT EDIT ###
            PROJECT=#{@config_settings['PROJECT']}
BUILT_PRODUCTS_DIR=#{@config_settings['BUILT_PRODUCTS_DIR']}
OBJECTS_NORMAL_DIR=#{@config_settings['OBJECT_FILE_DIR_normal']}
    EXECUTABLE_NAME=#{@config_settings['EXECUTABLE_NAME']}
        APP_PRODUCT=#{app_product}
           APP_DSYM=#{app_product}.dSYM
APP_INFOPLIST_FILE=#{@config_settings['PRODUCT_SETTINGS_PATH']}
   EMBEDDED_PROFILE=#{app_product}/#{@config_settings['EMBEDDED_PROFILE_NAME']}
        TARGET_NAME=#{@config_settings['TARGET_NAME']}
      CONFIGURATION=#{@config_settings['CONFIGURATION']}
           SDK_NAME=#{@config_settings['SDK_NAME']}
RESIGNED_BUNDLE_ID=#{@config_settings['RESIGNED_BUNDLE_ID']}
RESIGNED_BUNDLE_NAME=#{@config_settings['RESIGNED_BUNDLE_NAME']}
RESIGNED_ENTITLEMENTS_PATH=#{@config_settings['RESIGNED_ENTITLEMENTS_PATH']}\" > _last_build_vars.sh
  ")
end

def prebuild(config)
  save_revision = File.join(BUILD_SCRIPTS_PATH, 'SaveRevision.sh')

  system("#{save_revision}")

  abort unless working_copy_is_clean?

  backup_info_plist

  save_build_env_vars

  update_info_plist(config)
end

def build(config, ipa, ndsym, icon_tagger)
  build = File.join(BUILD_SCRIPTS_PATH, 'Build.py')

  build_success = nil

  configuration_build_dir = @config_settings['CONFIGURATION_BUILD_DIR']
  dwarf_dsym_folder_path  = @config_settings['DWARF_DSYM_FOLDER_PATH']
  built_products_dir      = @config_settings['BUILT_PRODUCTS_DIR']

  debug_information_format = ndsym ? 'dwarf' : 'dwarf-with-dsym'

  if @config_settings['PROJECT_TO_BUILD'] and @config_settings['PROJECT_TO_BUILD'].length > 0
    if @config_settings['PROJECT_TARGET_TO_BUILD'] and @config_settings['PROJECT_TARGET_TO_BUILD'].length > 0
      build_success = system("#{build} --project \"#{@config_settings['PROJECT_TO_BUILD']}\"\
                                       --target \"#{@config_settings['PROJECT_TARGET_TO_BUILD']}\"\
                                       --configuration \"#{config}\"\
                                       --sdk \"#{@config_settings['SDK']}\"\
                                       --env-var-prefix \"#{@config_settings['ENV_VAR_PREFIX']}\"\
                                       DEBUG_INFORMATION_FORMAT=\"#{debug_information_format}\"\
                                       DWARF_DSYM_FOLDER_PATH=\"#{dwarf_dsym_folder_path}\"\
                                       CONFIGURATION_BUILD_DIR=\"#{configuration_build_dir}\"\
                                       BUILT_PRODUCTS_DIR=\"#{built_products_dir}\"")
    else
      build_success = system("#{build} --project \"#{@config_settings['PROJECT_TO_BUILD']}\"\
                                       --scheme \"#{@config_settings['WORKSPACE_SCHEME_TO_BUILD']}\"\
                                       --configuration \"#{config}\"\
                                       --sdk \"#{@config_settings['SDK']}\"\
                                       --env-var-prefix \"#{@config_settings['ENV_VAR_PREFIX']}\"\
                                       DEBUG_INFORMATION_FORMAT=\"#{debug_information_format}\"\
                                       DWARF_DSYM_FOLDER_PATH=\"#{dwarf_dsym_folder_path}\"\
                                       CONFIGURATION_BUILD_DIR=\"#{configuration_build_dir}\"\
                                       BUILT_PRODUCTS_DIR=\"#{built_products_dir}\"")
    end
  elsif @config_settings['WORKSPACE_TO_BUILD'] and @config_settings['WORKSPACE_TO_BUILD'].length > 0
    build_success = system("#{build} --workspace \"#{@config_settings['WORKSPACE_TO_BUILD']}\"\
                                     --scheme \"#{@config_settings['WORKSPACE_SCHEME_TO_BUILD']}\"\
                                     --configuration \"#{config}\"\
                                     --sdk \"#{@config_settings['SDK']}\"\
                                     --env-var-prefix \"#{@config_settings['ENV_VAR_PREFIX']}\"\
                                     DEBUG_INFORMATION_FORMAT=\"#{debug_information_format}\"\
                                     DWARF_DSYM_FOLDER_PATH=\"#{dwarf_dsym_folder_path}\"\
                                     CONFIGURATION_BUILD_DIR=\"#{configuration_build_dir}\"\
                                     BUILT_PRODUCTS_DIR=\"#{built_products_dir}\"")
  end

  unless build_success
    restore_info_plist
    abort('Build error!')
  end

  if config == 'Release'
    p('IconTagger: configuration is Release. Skipping...')
  else
    case icon_tagger
      when 'full'
        tag_icon(false)
      when 'short'
        tag_icon(true)
      when 'off'
        p('IconTagger is disabled. Skipping...')
      else
        p("Unknown IconTagger mode: '#{icon_tagger}'. Skipping...")
    end
  end

  ipa.split.each do |current_ipa|
    case current_ipa
      # create .ipa file from last built app product
      when 'device'
        make = File.join(BUILD_SCRIPTS_PATH, 'MakeIPA.sh')
      # resign last built app product with iPhone Developer profile and package it into .ipa file
      when 'resigned_device'
        make = File.join(BUILD_SCRIPTS_PATH, 'MakeResignedIPAForDevice.sh')
      # resign last built app product with iPhone Distribution AdHoc profile and package it into .ipa file
      when 'resigned_adhoc'
        make = File.join(BUILD_SCRIPTS_PATH, 'MakeResignedIPAForAdHocDistribution.sh')
      # resign last built app product with Appstore distribution profile and package it into .ipa file
      when 'resigned_appstore'
        make = File.join(BUILD_SCRIPTS_PATH, 'MakeResignedIPAForAppstore.sh')
      else
        restore_info_plist
        abort("Error: Unknown ipa '#{current_ipa}'!")
    end

    make_success = system("#{make}") if defined? make

    unless make_success
      restore_info_plist
      abort("#{make} error!")
    end
  end
end

def unity_build(configuration, unity_platform, unity_path, development_build, keystore_path, keystore_password, key_alias_name, key_alias_password)
  root_working_dir = nil
  need_chdir_to_root_working_dir = false
  need_to_build_ios = false

  save_revision = File.join(BUILD_SCRIPTS_PATH, 'SaveRevision.sh')
  system("#{save_revision}")

  abort unless working_copy_is_clean?

  unity_build_scripts_dir = File.join(BUILD_SCRIPTS_PATH, 'UnityBuildAutomationScripts')
  unity_editor_dir = File.join(Dir.pwd, 'Assets/Editor')

  if File.directory?(unity_editor_dir)
    FileUtils.cp_r(unity_build_scripts_dir, unity_editor_dir)
  else
    abort("Copy UnityBuildAutomationScripts error! #{unity_editor_dir} doesn't exist!")
  end

  case unity_platform
    when 'ios'
      need_to_build_ios = true
      root_working_dir = Dir.pwd
      ios_project_path = File.join(root_working_dir, UNITY_BUILDS_IOS_PATH)
      development_build_arg = development_build ? ';developmentBuild=' : ''

      p('Generating IOS project from UNITY project ...')
      unity_success = system("#{unity_path} -projectPath '#{root_working_dir}' -executeMethod NIXBuilder.MakeiOSBuild -projectPath #{root_working_dir.shellescape} -batchmode -logFile -quit -customArgs:buildPath='#{ios_project_path}#{development_build_arg}'")
      abort('iOS build unity error!') unless unity_success
      p('IOS project was generated.')

      need_chdir_to_root_working_dir = true
      clean_working_copy(false)

      Dir.chdir(ios_project_path)

      $project_to_build = 'Unity-iPhone.xcodeproj'
      $project_target_to_build = 'Unity-iPhone'
    when 'android'
      unity_build_android = File.join(BUILD_SCRIPTS_PATH, 'UnityBuildAndroid.py')
      development_build_arg = development_build ? '--development-build' : ''
      keystore_path_arg = keystore_path ? "--keystore-path #{keystore_path}" : ''
      keystore_password_arg = keystore_password ? "--keystore-password #{keystore_password}" : ''
      key_alias_name_arg = key_alias_name ? "--key-alias-name #{key_alias_name}" : ''
      key_alias_password_arg = key_alias_password ? "--key-alias-password #{key_alias_password}" : ''

      build_success = system("#{unity_build_android} --configuration #{configuration} --unity-path #{unity_path} #{development_build_arg} #{keystore_path_arg} #{keystore_password_arg} #{key_alias_name_arg} #{key_alias_password_arg}")
      abort('Android build unity error!') unless build_success

      clean_working_copy(false)
    else
      abort("Error: Unknown unity target platform '#{unity_platform}'!")
  end

  return need_to_build_ios, root_working_dir, need_chdir_to_root_working_dir
end

def tag_icon(short_version)
  tagger_directory = File.join(BUILD_SCRIPTS_PATH, 'XcodeIconTagger')
  utility = File.join(tagger_directory, 'IconTagger')
  plist_path = @unescaped_product_settings_path
  version =  %x[ /usr/libexec/PlistBuddy -c 'Print CFBundleShortVersionString' '#{plist_path}' ].strip!
  monotonic_revision = %x[ source _last_revision.sh && echo ${MONOTONIC_REVISION} ].strip!
  style = short_version ? 'OneLine' : 'TwoLine'
  mask_path = File.join(tagger_directory, "masks/#{style}Mask.png")
  icons_dir = File.join(Dir.pwd, @config_settings['ICONS_PATH'])
  app_product = File.join(@config_settings['BUILT_PRODUCTS_DIR'], @config_settings['EXECUTABLE_NAME']) + '.app'

  system("#{utility} --shortVersion=#{version}\
                     --buildNumber=#{monotonic_revision}\
                     --style=#{style}\
                     --maskPath=\"#{mask_path}\"\
                     --plist=\"#{plist_path}\"\
                     --sourceIconsPath=\"#{icons_dir}\"\
                     --destinationIconsPath=#{app_product}")
end

def backup_info_plist
  p('Backuping Info.plist ...')

  @info_plist_backup_name = @unescaped_product_settings_path + '.backup'
  FileUtils.cp(@unescaped_product_settings_path, @info_plist_backup_name)

  p('Info.plist was backuped.')

  unless @unescaped_watchkit_app_product_settings_path.nil?
    p('Backuping WatchKit App Info.plist ...')

    @watchkit_app_info_plist_backup_name = @unescaped_watchkit_app_product_settings_path + '.backup'
    FileUtils.cp(@unescaped_watchkit_app_product_settings_path, @watchkit_app_info_plist_backup_name)

    p('WatchKit App Info.plist was backuped.')
  end

  unless @unescaped_watchkit_extension_product_settings_path.nil?
    p('Backuping WatchKit Extension Info.plist ...')

    @watchkit_extension_info_plist_backup_name = @unescaped_watchkit_extension_product_settings_path + '.backup'
    FileUtils.cp(@unescaped_watchkit_extension_product_settings_path, @watchkit_extension_info_plist_backup_name)

    p('WatchKit Extension Info.plist was backuped.')
  end
end

def update_info_plist(config)
  p('Updating Info.plist ...')

  revision = %x[ source _last_revision.sh && echo ${REVISION} ].strip!
  monotonic_revision = %x[ source _last_revision.sh && echo ${MONOTONIC_REVISION} ].strip!
  bundle_id = @config_settings['BUNDLE_ID']

  update_success = system("/usr/libexec/PlistBuddy -c 'Set :CFBundleVersion \"#{monotonic_revision}\"' \"#{@unescaped_product_settings_path}\"")

  if bundle_id
    update_success &&= system("/usr/libexec/PlistBuddy -c 'Set :CFBundleIdentifier \"#{bundle_id}\"' \"#{@unescaped_product_settings_path}\"")
  end

  update_success &&= system("/usr/libexec/PlistBuddy -c 'Add :Configuration string \"#{config}\"' \"#{@unescaped_product_settings_path}\"")
  update_success &&= system("/usr/libexec/PlistBuddy -c 'Add :RevisionNumber string \"#{revision}\"' \"#{@unescaped_product_settings_path}\"")

  unless update_success
    restore_info_plist
    abort('Update Info.plist error!')
  end

  p('Info.plist was updated.')

  unless @unescaped_watchkit_app_product_settings_path.nil?
    p('Updating WatchKit App Info.plist ...')

    update_success = system("/usr/libexec/PlistBuddy -c 'Set :CFBundleVersion \"#{monotonic_revision}\"' \"#{@unescaped_watchkit_app_product_settings_path}\"")
    unless update_success
      restore_info_plist
      abort('Update WatchKit App Info.plist error!')
    end

    p('WatchKit App Info.plist was updated.')
  end

  unless @unescaped_watchkit_extension_product_settings_path.nil?
    p('Updating Extension App Info.plist ...')

    update_success = system("/usr/libexec/PlistBuddy -c 'Set :CFBundleVersion \"#{monotonic_revision}\"' \"#{@unescaped_watchkit_extension_product_settings_path}\"")
    unless update_success
      restore_info_plist
      abort('Update WatchKit Extension Info.plist error!')
    end

    p('WatchKit Extension Info.plist was updated.')
  end
end

def restore_info_plist
  p('Restoring Info.plist ...')

  File.delete(@unescaped_product_settings_path)
  File.rename(@info_plist_backup_name, @unescaped_product_settings_path)

  p('Info.plist was restored.')

  unless @unescaped_watchkit_app_product_settings_path.nil?
    p('Restoring WatchKit App Info.plist ...')

    File.delete(@unescaped_watchkit_app_product_settings_path)
    File.rename(@watchkit_app_info_plist_backup_name, @unescaped_watchkit_app_product_settings_path)

    p('WatchKit App Info.plist was restored.')
  end

  unless @unescaped_watchkit_extension_product_settings_path.nil?
    p('Restoring WatchKit Extension Info.plist ...')

    File.delete(@unescaped_watchkit_extension_product_settings_path)
    File.rename(@watchkit_extension_info_plist_backup_name, @unescaped_watchkit_extension_product_settings_path)

    p('WatchKit Extension Info.plist was restored.')
  end
end

def deploy(deliver_deploy)
  deploy = File.join(BUILD_SCRIPTS_PATH, 'DeployIPA.sh')

  deploy_host = @config_settings['DEPLOY_HOST'].nil? || @config_settings['DEPLOY_HOST'].empty? ? ENV['DEPLOY_HOST'] : @config_settings['DEPLOY_HOST']
  deploy_path = @config_settings['DEPLOY_PATH'].nil? || @config_settings['DEPLOY_PATH'].empty? ? ENV['DEPLOY_PATH'] : @config_settings['DEPLOY_PATH']
  deploy_username = @config_settings['DEPLOY_USERNAME'].nil? || @config_settings['DEPLOY_USERNAME'].empty? ? ENV['DEPLOY_USERNAME'] : @config_settings['DEPLOY_USERNAME']
  deploy_password = @config_settings['DEPLOY_PASSWORD'].nil? || @config_settings['DEPLOY_PASSWORD'].empty? ? ENV['DEPLOY_PASSWORD'] : @config_settings['DEPLOY_PASSWORD']
  deploy_itunesconnect_username = @config_settings['DEPLOY_ITUNESCONNECT_USERNAME'].nil? || @config_settings['DEPLOY_ITUNESCONNECT_USERNAME'].empty? ? ENV['DEPLOY_ITUNESCONNECT_USERNAME'] : @config_settings['DEPLOY_ITUNESCONNECT_USERNAME']

  deploy_itunesconnect_username ||= 'unknown'
  deliver_deploy = deliver_deploy ? 1 : 0

  deploy_success = system("#{deploy} #{deploy_host} #{deploy_path} #{deploy_username} #{deploy_password} #{deploy_itunesconnect_username} #{deliver_deploy}")
  abort('Deploy error!') unless deploy_success
end

def unity_deploy(unity_platform)
  root_working_dir = nil
  need_chdir_to_root_working_dir = false
  need_to_deploy_ios = false

  case unity_platform
    when 'ios'
      root_working_dir = Dir.pwd
      need_chdir_to_root_working_dir = true
      need_to_deploy_ios = true

      ios_project_path = File.join(root_working_dir, UNITY_BUILDS_IOS_PATH)
      Dir.chdir(ios_project_path)
    when 'android'
      deploy_success = system(File.join(BUILD_SCRIPTS_PATH, 'DeployAPK.py'))
      abort('Android deploy unity error!') unless deploy_success
    else
      abort("Error: Unknown unity target platform '#{unity_platform}'!")
  end

  return need_to_deploy_ios, root_working_dir, need_chdir_to_root_working_dir
end

def clean
  remove_temporary_files = File.join(BUILD_SCRIPTS_PATH, 'RemoveTemporaryFiles.sh')

  system("#{remove_temporary_files}")
  system('rm -rf test-results/')
  system("find . -name \"*.pyc\" -exec rm -rf {} \;")
  system('xcodebuild -alltargets clean')
end

def test
  code_coverage_configuration = File.join(@config_settings['CONFIGURATION_FILES_PATH'], @config_settings['CODE_COVERAGE_CONFIGURATION'])
  timeout = 10
  ocunit2junit = File.join(BUILD_SCRIPTS_PATH, 'Utils/ocunit2junit')

  run_tests_success = system("xcodebuild -workspace \"#{@config_settings['WORKSPACE_TO_BUILD']}\"\
                                         -scheme \"#{@config_settings['WORKSPACE_SCHEME_TO_TEST']}\"\
                                         -configuration \"Debug\"\
                                         -sdk \"#{@config_settings['SDK_FOR_TESTS']}\"\
                                         -xcconfig \"#{code_coverage_configuration}\"\
                                         -destination-timeout \"#{timeout}\"\
                                         -destination \"#{@config_settings['XCTEST_DESTINATION_DEVICE']}\"\
                                         test 2>&1 | \"#{ocunit2junit}\"")

  abort('Run test error!') unless run_tests_success
end

def code_coverage
  generate_code_coverage_report = File.join(BUILD_SCRIPTS_PATH, 'GenerateCodeCoverageForXCTests.sh')
  code_coverage_configuration = File.join(@config_settings['CONFIGURATION_FILES_PATH'], @config_settings['CODE_COVERAGE_CONFIGURATION'])
  timeout = 10

  report_success = system("#{generate_code_coverage_report} -workspace \"#{@config_settings['WORKSPACE_TO_BUILD']}\"\
                                                            -scheme \"#{@config_settings['WORKSPACE_SCHEME_TO_TEST']}\"\
                                                            -configuration \"Debug\"\
                                                            -sdk \"#{@config_settings['SDK_FOR_TESTS']}\"\
                                                            -xcconfig \"#{code_coverage_configuration}\"\
                                                            -exclude \"#{@config_settings['EXCLUDE_PATTERN_FOR_CODE_COVERAGE']}\"\
                                                            -output \"#{@config_settings['CODE_COVERAGE_OUTPUT_DIRECTORY']}\"\
                                                            -destination-timeout \"#{timeout}\"\
                                                            -destination \"#{@config_settings['XCTEST_DESTINATION_DEVICE']}\"")
  abort('Code coverage error!') unless report_success
end

def code_duplication_report
  generate_code_duplication_report = File.join(BUILD_SCRIPTS_PATH, 'GenerateCodeDuplicationReport.sh')
  duplication_success = system("#{generate_code_duplication_report} \"#{@config_settings['EXCLUDE_PATTERN_FOR_CODE_DUPLICATION']}\" duplication.xml")
  abort('Generate code duplication error!') unless duplication_success
end

def tag
  make_tag = File.join(BUILD_SCRIPTS_PATH, 'MakeTag.sh')
  tag_success = system("#{make_tag} \"#{ENV['SCM_USERNAME']}\" \"#{ENV['SCM_PASSWORD']}\"")
  abort('Make tag error!') unless tag_success
end

# Jenkins stores SVN credentials locally in XML, so this command gets and uses them on making tag by finding the first credential in local credential storage
# ATTENTION: if this command picks up wrong credentials, then you should manually edit subversion.credentials file on Jenkins in order to remove the wrong credential
# Additional |echo| is needed in order to add newline, otherwise base64 encoding doesn't work
def svn_tag_from_jenkins
  ENV['SCM_USERNAME']=%x[ $(shell xpath ../subversion.credentials \(//userName\)[1]/text\(\)) ]
  ENV['SCM_PASSWORD']=%x[ $(shell echo $$(xpath ../subversion.credentials \(//password\)[1]/text\(\) 2>/dev/null && echo) | openssl base64 -d) ]

  tag
end

def clean_working_copy(all)
  clean_all = all ? 'all' : nil
  clean_working_copy = File.join(BUILD_SCRIPTS_PATH, 'CleanWorkingCopy.sh')
  clean_success = system("#{clean_working_copy} #{clean_all}")
  abort('Clean working copy error!') unless clean_success
end