# Copyright 2015 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

import("ios_sdk.gni")

# Constants corresponding to the bundle type identifier for XCTest and XCUITest
# targets.
_ios_xcode_xctest_bundle_id = "com.apple.product-type.bundle.unit-test"
_ios_xcode_xcuitest_bundle_id = "com.apple.product-type.bundle.ui-testing"

template("create_signed_bundle") {
  assert(defined(invoker.output_name),
         "output_name must be defined for $target_name")
  assert(defined(invoker.product_type),
         "product_type must be defined for $target_name")
  assert(defined(invoker.bundle_extension),
         "bundle_extension must be defined for $target_name")
  assert(defined(invoker.bundle_binary_target) !=
             defined(invoker.bundle_executable_path),
         "Only one of bundle_binary_target or bundle_executable_path may be " +
             "specified for $target_name")
  if (defined(invoker.xcode_test_application_name)) {
    assert(
        invoker.product_type == _ios_xcode_xctest_bundle_id ||
            invoker.product_type == _ios_xcode_xcuitest_bundle_id,
        "xcode_test_application_name can be only defined for Xcode unit or " +
            "ui test target.")
  }

  if (defined(invoker.bundle_executable_path)) {
    _bundle_executable_path = invoker.bundle_executable_path
  } else {
    _bundle_binary_target = invoker.bundle_binary_target
    _bundle_binary_output = get_label_info(_bundle_binary_target, "name")
    if (defined(invoker.bundle_binary_output)) {
      _bundle_binary_output = invoker.bundle_binary_output
    }
    _bundle_executable_path =
        get_label_info(_bundle_binary_target, "target_out_dir") +
        "/$_bundle_binary_output"
  }

  _output_name = invoker.output_name
  _bundle_gen_dir = root_out_dir
  _bundle_extension = invoker.bundle_extension

  create_bundle(target_name) {
    forward_variables_from(invoker,
                           [
                             "data_deps",
                             "deps",
                             "product_type",
                             "public_configs",
                             "public_deps",
                             "testonly",
                             "visibility",
                             "xcode_test_application_name",
                           ])
    bundle_root_dir = "$_bundle_gen_dir/$_output_name$_bundle_extension"
    bundle_contents_dir = bundle_root_dir
    bundle_resources_dir = bundle_contents_dir
    bundle_executable_dir = bundle_contents_dir

    code_signing_script =
        "//third_party/mini_chromium/mini_chromium/build/ios/codesign.py"
    code_signing_sources = [ _bundle_executable_path ]
    code_signing_outputs = [ "$bundle_executable_dir/$_output_name" ]

    if (ios_enable_code_signing) {
      code_signing_outputs +=
          [ "$bundle_contents_dir/_CodeSignature/CodeResources" ]
    }

    if (defined(invoker.extra_system_frameworks)) {
      foreach(_framework, invoker.extra_system_frameworks) {
        code_signing_outputs += [ "$bundle_contents_dir/Frameworks/" +
                                  get_path_info(_framework, "file") ]
      }
    }

    code_signing_args = [
      "code-sign-bundle",
      "-t=" + ios_sdk_name,
      "-i=" + ios_code_signing_identity,
      "-b=" + rebase_path(_bundle_executable_path, root_build_dir),
    ]
    code_signing_args += [ rebase_path(bundle_root_dir, root_build_dir) ]
    if (!ios_enable_code_signing) {
      code_signing_args += [ "--disable-code-signature" ]
    }
    if (defined(invoker.extra_system_frameworks)) {
      # All framework in extra_system_frameworks are expected to be
      # system framework and the path to be already system absolute
      # so do not use rebase_path here.
      foreach(_framework, invoker.extra_system_frameworks) {
        code_signing_args += [ "-F=" + _framework ]
      }
    }

    _entitlements_path =
        "//third_party/mini_chromium/mini_chromium/build/ios/entitlements.plist"
    code_signing_args +=
        [ "-e=" + rebase_path(_entitlements_path, root_build_dir) ]

    # Bundle ID should respect rfc1034 and replace _ with -.
    _xcode_product_bundle_id =
        string_replace("$ios_app_bundle_id_prefix.googletest.$_output_name",
                       "_",
                       "-")

    xcode_extra_attributes = {
      IPHONEOS_DEPLOYMENT_TARGET = ios_deployment_target
      CODE_SIGN_STYLE = "Manual"
      CODE_SIGN_IDENTITY = ""
      PRODUCT_BUNDLE_IDENTIFIER = _xcode_product_bundle_id

      if (defined(invoker.xcode_extra_attributes)) {
        forward_variables_from(invoker.xcode_extra_attributes, "*")
      }
    }

    if (!defined(public_deps)) {
      public_deps = []
    }

    if (defined(invoker.bundle_binary_target)) {
      public_deps += [ invoker.bundle_binary_target ]
    }

    if (defined(invoker.bundle_deps)) {
      if (!defined(deps)) {
        deps = []
      }
      deps += invoker.bundle_deps
    }
  }
}

template("info_plist") {
  assert(defined(invoker.plist_templates),
         "A template plist file must be specified for $target_name")
  assert(defined(invoker.executable_name),
         "The executable_name must be specified for $target_name")

  _plist_templates = invoker.plist_templates
  _executable_name = invoker.executable_name
  _target_name = target_name
  _output_name = "$target_gen_dir/$_target_name.plist"

  _format = "binary1"
  _substitutions = [
    "BUILD_MACHINE_OS_BUILD=$machine_os_build",
    "EXECUTABLE_NAME=$_executable_name",
    "GCC_VERSION=com.apple.compilers.llvm.clang.1_0",
    "PRODUCT_NAME=$_executable_name",
    "XCODE_BUILD=$xcode_build",
    "XCODE_VERSION=$xcode_version",
    "IOS_DEPLOYMENT_TARGET=$ios_deployment_target",
    "IOS_BUNDLE_ID_PREFIX=$ios_app_bundle_id_prefix",
    "IOS_PLATFORM_BUILD=$ios_platform_build",
    "IOS_PLATFORM_NAME=$ios_sdk_name",
    "IOS_PLATFORM_VERSION=$ios_sdk_version",
    "IOS_SDK_BUILD=$ios_sdk_build",
    "IOS_SDK_NAME=$ios_sdk_name$ios_sdk_version",
    "IOS_SUPPORTED_PLATFORM=$ios_sdk_platform",
  ]
  if (defined(invoker.extra_substitutions)) {
    foreach(_substitution, invoker.extra_substitutions) {
      _substitutions += [ _substitution ]
    }
  }

  _merge_plist_target = _target_name + "_merge_plist"
  _merged_plist_output_name = "$target_gen_dir/${_target_name}_merged.plist"
  action(_merge_plist_target) {
    forward_variables_from(invoker,
                           [
                             "testonly",
                             "deps",
                           ])
    script = "//third_party/mini_chromium/mini_chromium/build/ios/plist_util.py"

    sources = _plist_templates

    outputs = [ _merged_plist_output_name ]
    args = [
             "merge",
             "-f=xml1",
             "-o=" + rebase_path(_merged_plist_output_name, root_build_dir),
           ] + rebase_path(sources, root_build_dir)
  }

  action(target_name) {
    forward_variables_from(invoker,
                           [
                             "testonly",
                             "visibility",
                           ])
    script = "//third_party/mini_chromium/mini_chromium/build/ios/plist_util.py"
    sources = [ _merged_plist_output_name ]
    outputs = [ _output_name ]
    args = [
      "substitute",
      "-f=" + _format,
      "-o=" + rebase_path(_output_name, root_build_dir),
      "-t=" + rebase_path(_merged_plist_output_name, root_build_dir),
    ]
    foreach(_substitution, _substitutions) {
      args += [ "-s=$_substitution" ]
    }
    deps = [ ":$_merge_plist_target" ]
  }
}

template("ios_app_bundle") {
  _output_name = target_name
  _target_name = target_name
  _plist_templates = []
  if (defined(invoker.info_plist)) {
    _plist_templates += [ invoker.info_plist ]
  }
  _plist_extra_substitutions = []
  if (defined(invoker.extra_substitutions)) {
    _plist_extra_substitutions += invoker.extra_substitutions
  }

  _executable_sources_target = _target_name + "_executable_sources"
  _generate_executable_target = _target_name + "_generate_executable"
  source_set(_executable_sources_target) {
    forward_variables_from(invoker,
                           "*",
                           [
                             "bundle_deps",
                             "extra_system_frameworks",
                             "visibility",
                             "plist_templates",
                             "plist_extra_substitutions",
                           ])
    visibility = [ ":$_generate_executable_target" ]
  }

  executable(_generate_executable_target) {
    visibility = [ ":$_target_name" ]
    forward_variables_from(invoker,
                           "*",
                           [
                             "bundle_deps",
                             "extra_system_frameworks",
                             "sources",
                             "visibility",
                             "plist_templates",
                             "plist_extra_substitutions",
                           ])
    if (!defined(deps)) {
      deps = []
    }
    deps += [ ":$_executable_sources_target" ]

    if (!defined(frameworks)) {
      frameworks = []
    }
    frameworks += [ "UIKit.framework" ]

    if (!defined(ldflags)) {
      ldflags = []
    }
    ldflags += [
      "-Wl,-rpath,@executable_path/Frameworks",
      "-Wl,-objc_abi_version,2",
    ]

    output_name = _output_name
    output_prefix_override = true
    output_dir = "$target_out_dir"
  }

  _generate_info_plist_target = target_name + "_generate_info_plist"
  _bundle_info_plist_target = target_name + "_bundle_info_plist"
  info_plist(_generate_info_plist_target) {
    visibility = [ ":$_bundle_info_plist_target" ]
    forward_variables_from(invoker, [ "testonly" ])
    executable_name = _output_name
    plist_templates = [
      "//third_party/mini_chromium/mini_chromium/build/ios/BuildInfo.plist",
      "//third_party/mini_chromium/mini_chromium/build/ios/Application-Info.plist",
    ]
    plist_templates += _plist_templates
    extra_substitutions = _plist_extra_substitutions
  }

  bundle_data(_bundle_info_plist_target) {
    visibility = [ ":$_target_name" ]
    forward_variables_from(invoker, [ "testonly" ])
    sources = get_target_outputs(":$_generate_info_plist_target")
    outputs = [ "{{bundle_contents_dir}}/Info.plist" ]
    public_deps = [ ":$_generate_info_plist_target" ]
  }

  _bundle_executable_path = get_label_info(":$_generate_executable_target",
                                           "target_out_dir") + "/$_output_name"

  create_signed_bundle(_target_name) {
    forward_variables_from(invoker,
                           [
                             "bundle_deps",
                             "data_deps",
                             "deps",
                             "extra_system_frameworks",
                             "public_configs",
                             "public_deps",
                             "testonly",
                             "visibility",
                           ])
    output_name = _output_name
    product_type = "com.apple.product-type.application"
    bundle_extension = ".app"
    bundle_executable_path = _bundle_executable_path

    if (!defined(deps)) {
      deps = []
    }
    deps += [
      ":$_bundle_info_plist_target",
      ":$_generate_executable_target",
    ]
  }
}

template("ios_xctest_bundle") {
  assert(defined(invoker.deps), "deps must be defined for $target_name")
  assert(defined(invoker.product_type),
         "product_type must be defined for $target_name")
  assert(invoker.product_type == _ios_xcode_xctest_bundle_id ||
             invoker.product_type == _ios_xcode_xcuitest_bundle_id,
         "product_type defined for $target_name is invalid.")
  assert(defined(invoker.host_target),
         "host_target must be defined for $target_name")
  assert(defined(invoker.xcode_test_application_name),
         "xcode_test_application_name must be defined for $target_name")
  assert(invoker.xcode_test_application_name != target_name)

  _target_name = target_name
  _output_name = target_name

  if (defined(invoker.output_name)) {
    _output_name = invoker.output_name
  }

  _loadable_module_source = _target_name + "_loadable_module_source"
  _loadable_module_target = _target_name + "_loadable_module"

  source_set(_loadable_module_source) {
    forward_variables_from(invoker, [ "deps" ])

    testonly = true
    visibility = [ ":$_loadable_module_target" ]
  }

  loadable_module(_loadable_module_target) {
    testonly = true
    visibility = [ ":$_target_name" ]

    deps = [ ":$_loadable_module_source" ]
    configs +=
        [ "//third_party/mini_chromium/mini_chromium/build/ios:xctest_config" ]

    output_dir = "$target_out_dir"
    output_name = _output_name
    output_prefix_override = true
    output_extension = ""
  }

  _info_plist_target = _target_name + "_info_plist"
  _info_plist_bundle = _target_name + "_info_plist_bundle"

  info_plist(_info_plist_target) {
    testonly = true
    visibility = [ ":$_info_plist_bundle" ]

    plist_templates = [
      "//third_party/mini_chromium/mini_chromium/build/ios/Module-Info.plist",
    ]
    executable_name = _output_name

    if (defined(invoker.xctest_bundle_principal_class)) {
      _principal_class = invoker.xctest_bundle_principal_class
    } else {
      # Fall back to a reasonable default value.
      _principal_class = "NSObject"
    }
    extra_substitutions = [
      "XCTEST_BUNDLE_PRINCIPAL_CLASS=${_principal_class}",
      "MODULE_BUNDLE_ID=googletest.$_output_name",
    ]
  }

  bundle_data(_info_plist_bundle) {
    testonly = true
    visibility = [ ":$_target_name" ]

    public_deps = [ ":$_info_plist_target" ]

    sources = get_target_outputs(":$_info_plist_target")
    outputs = [ "{{bundle_contents_dir}}/Info.plist" ]
  }

  _xctest_bundle = _target_name + "_bundle"
  create_signed_bundle(_target_name) {
    forward_variables_from(invoker,
                           [
                             "enable_code_signing",
                             "product_type",
                             "xcode_test_application_name",
                           ])

    testonly = true
    visibility = [ ":$_xctest_bundle" ]

    bundle_extension = ".xctest"

    output_name = _output_name
    bundle_executable_path = get_label_info(":$_loadable_module_target",
                                            "target_out_dir") + "/$_output_name"

    # Test files need to be known to Xcode for proper indexing and discovery
    # of tests function for XCTest, but the compilation is done via ninja and
    # thus must prevent Xcode from linking object files via this hack.
    xcode_extra_attributes = {
      OTHER_LDFLAGS = "-help"
      ONLY_ACTIVE_ARCH = "YES"
      DEBUG_INFORMATION_FORMAT = "dwarf"

      # For XCUITest, Xcode requires specifying the host application name via
      # the TEST_TARGET_NAME attribute.
      if (invoker.product_type == _ios_xcode_xcuitest_bundle_id) {
        TEST_TARGET_NAME = invoker.xcode_test_application_name
      }

      # For XCTest, Xcode requires specifying the host application path via
      # both BUNDLE_LOADER and TEST_HOST attributes.
      if (invoker.product_type == _ios_xcode_xctest_bundle_id) {
        BUNDLE_LOADER = "\$(TEST_HOST)"
        TEST_HOST =
            "\$(BUILT_PRODUCTS_DIR)/${invoker.xcode_test_application_name}" +
            ".app/${invoker.xcode_test_application_name}"
      }
    }

    deps = [ ":$_info_plist_bundle" ]
    public_deps = [ ":$_loadable_module_target" ]
  }

  bundle_data(_xctest_bundle) {
    forward_variables_from(invoker, [ "host_target" ])

    testonly = true
    visibility = [ ":$host_target" ]

    public_deps = [ ":$_target_name" ]
    sources = [ "$root_out_dir/$_output_name.xctest" ]
    outputs = [ "{{bundle_contents_dir}}/PlugIns/$_output_name.xctest" ]
  }
}

template("ios_xctest_test") {
  # Invokers must specify their own target for the xctest module.
  assert(defined(invoker.xctest_module_target),
         "xctest_module_target is required.")

  _target_name = target_name
  _output_name = target_name

  _xctest_target = _target_name + "_module"
  _xctest_output = _output_name + "_module"

  _host_target = _target_name
  _host_output = _output_name

  _xctest_module_target = invoker.xctest_module_target

  ios_xctest_bundle(_xctest_target) {
    output_name = _xctest_output
    product_type = _ios_xcode_xctest_bundle_id
    host_target = _host_target
    xcode_test_application_name = _host_output

    deps = [ _xctest_module_target ]
  }

  ios_app_bundle(_host_target) {
    forward_variables_from(invoker, "*", [ "testonly" ])
    testonly = true

    # Xcode needs the following frameworks installed in the application (and
    # signed) for the XCTest to run, so install them using
    # extra_system_frameworks.
    _ios_platform_library = "$ios_sdk_platform_path/Developer/Library"
    extra_system_frameworks = [
      "$_ios_platform_library/Frameworks/XCTest.framework",
      "$ios_sdk_platform_path/Developer/Library/PrivateFrameworks/XCTAutomationSupport.framework",
      "$ios_sdk_platform_path/Developer/usr/lib/libXCTestBundleInject.dylib",
    ]

    _xctest_bundle = _xctest_target + "_bundle"
    if (!defined(bundle_deps)) {
      bundle_deps = []
    }
    bundle_deps += [ ":$_xctest_bundle" ]

    if (!defined(ldflags)) {
      ldflags = []
    }
    ldflags += [
      "-Wl,-rpath,@executable_path/Frameworks",
      "-Wl,-rpath,@loader_path/Frameworks",
    ]
  }
}

template("ios_xcuitest_test_runner_bundle") {
  assert(defined(invoker.xctest_bundle),
         "xctest_bundle must be defined for $target_name")

  _target_name = target_name
  _output_name = target_name
  if (defined(invoker.output_name)) {
    _output_name = invoker.output_name
  }

  _xctrunner_path =
      "$ios_sdk_platform_path/Developer/Library/Xcode/Agents/XCTRunner.app"

  # When creating the test runner for an XCUITest, the arm64e slice of the binary
  # must be removed (at least until the app ships with arm64e slice which is not
  # yet supported by Apple).
  action("xctest_runner_without_arm64e") {
    testonly = true
    script =
        "//third_party/mini_chromium/mini_chromium/build/ios/strip_arm64e.py"
    sources = [ "$_xctrunner_path/XCTRunner" ]
    outputs = [ "$target_out_dir/XCTRunner" ]
    args = [
      "--output",
      rebase_path(outputs[0], root_build_dir),
      "--input",
      rebase_path(sources[0], root_build_dir),
    ]
  }

  _info_plist_target = _target_name + "_info_plist"
  _info_plist_bundle = _target_name + "_info_plist_bundle"
  info_plist(_info_plist_target) {
    testonly = true
    visibility = [ ":$_info_plist_bundle" ]

    executable_name = _output_name
    plist_templates = [
      "$_xctrunner_path/Info.plist",

      # NOTE: The XCTRunnerAddition+Info.plist must come after the Info.plist
      # because it overrides the values under "CFBundleIdentifier" and
      # "CFBundleName".
      "//third_party/mini_chromium/mini_chromium/build/ios/XCTRunnerAddition+Info.plist",
    ]
  }

  bundle_data(_info_plist_bundle) {
    testonly = true
    visibility = [ ":$_target_name" ]

    public_deps = [ ":$_info_plist_target" ]

    sources = get_target_outputs(":$_info_plist_target")
    outputs = [ "{{bundle_contents_dir}}/Info.plist" ]
  }

  _pkginfo_bundle = _target_name + "_pkginfo_bundle"
  bundle_data(_pkginfo_bundle) {
    testonly = true
    visibility = [ ":$_target_name" ]

    sources = [ "$_xctrunner_path/PkgInfo" ]

    outputs = [ "{{bundle_contents_dir}}/PkgInfo" ]
  }

  _xctest_bundle = invoker.xctest_bundle
  create_signed_bundle(_target_name) {
    testonly = true

    bundle_binary_target = ":xctest_runner_without_arm64e"
    bundle_binary_output = "XCTRunner"
    bundle_extension = ".app"
    product_type = "com.apple.product-type.application"

    output_name = _output_name

    # Xcode needs the following frameworks installed in the application
    # (and signed) for the XCUITest to run, so install them using
    # extra_system_frameworks.
    extra_system_frameworks = [
      "$ios_sdk_platform_path/Developer/Library/Frameworks/XCTest.framework",
      "$ios_sdk_platform_path/Developer/Library/PrivateFrameworks/XCTAutomationSupport.framework",
    ]

    bundle_deps = []
    if (defined(invoker.bundle_deps)) {
      bundle_deps += invoker.bundle_deps
    }
    bundle_deps += [
      ":$_info_plist_bundle",
      ":$_pkginfo_bundle",
      ":$_xctest_bundle",
    ]
  }
}

template("ios_xcuitest_test") {
  assert(defined(invoker.deps), "deps must be defined for $target_name")
  assert(defined(invoker.xcode_test_application_name),
         "xcode_test_application_name must be defined for $target_name")

  _xcuitest_target = target_name
  _xcuitest_runner_target = _xcuitest_target + "_runner"
  _xcuitest_module_target = _xcuitest_target + "_module"

  group(_xcuitest_target) {
    testonly = true

    deps = [ ":$_xcuitest_runner_target" ]
  }

  _xcuitest_module_output = _xcuitest_target
  ios_xctest_bundle(_xcuitest_module_target) {
    forward_variables_from(invoker,
                           [
                             "xcode_test_application_name",
                             "xctest_bundle_principal_class",
                           ])

    product_type = _ios_xcode_xcuitest_bundle_id
    host_target = _xcuitest_runner_target
    output_name = _xcuitest_module_output

    deps = invoker.deps
  }

  _xcuitest_runner_output = _xcuitest_target + "-Runner"
  ios_xcuitest_test_runner_bundle(_xcuitest_runner_target) {
    output_name = _xcuitest_runner_output
    xctest_bundle = _xcuitest_module_target + "_bundle"
    forward_variables_from(invoker, [ "bundle_deps" ])
  }
}
