# Copyright 2013 The Flutter 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("//build/toolchain/rbe.gni")

assert(host_os == "mac")

# Common args across all Apple platforms.
declare_args() {
  # The MACOSX_DEPLOYMENT_TARGET variable used when compiling.
  # Must be of the form x.x.x for Info.plist files.
  mac_deployment_target = ""

  # Path to the host Xcode toolchain (XcodeDefault.xctoolchain).
  mac_host_toolchain_path = ""

  # Path to the macOS platform.
  mac_platform_path = ""

  # Path to a specific version of the macOS SDK, not including a backslash at
  # the end.
  mac_sdk_path = ""

  mac_swift_lib_paths = []

  # Version of iOS that we're targeting for tests.
  mac_testing_deployment_target = "14.0"

  # Path to the iOS platform to use.
  #
  # When empty, this will use the default platform based on the value of
  # use_ios_simulator.
  ios_platform_path = ""

  # Path to the iOS SDK to use.
  #
  # When empty this will use the default SDK based on the value of
  # use_ios_simulator.
  ios_sdk_path = ""

  # Set to true when targeting a simulator build on iOS. False means that the
  # target is for running on the device. The default value is to use the
  # Simulator except when targeting GYP's Xcode builds (for compat with the
  # existing GYP build).
  use_ios_simulator = true

  # Alias for use_ios_simulator used by Skia.
  ios_use_simulator = true

  # Version of iOS that we're targeting.
  ios_deployment_target = "13.0"

  # The path to the iOS device platform.
  ios_device_platform_path = ""

  # The path to the iOS simulator platform.
  ios_simulator_platform_path = ""

  # The path to the iOS device SDK.
  ios_device_sdk_path = ""

  # The path to the iOS simulator SDK.
  ios_simulator_sdk_path = ""

  # The path to iOS SDK Swift libraries.
  ios_swift_lib_paths = []

  # Version of iOS that we're targeting for tests.
  ios_testing_deployment_target = "13.0"
}

if (target_os == "ios" || target_os == "macos") {
  # Must be set above or by gn.
  assert(mac_deployment_target != "")
  assert(defined(use_ios_simulator))
  assert(defined(ios_use_simulator))
  assert(ios_deployment_target != "")
  assert(ios_testing_deployment_target != "")
}

# Run darwin_sdk.py to determine SDK paths if necessary.
_need_darwin_sdk_run = false
if (mac_host_toolchain_path == "" ||  #
    mac_sdk_path == "" ||  #
    mac_platform_path == "") {
  _need_darwin_sdk_run = true
}
if (is_ios) {
  if (use_ios_simulator &&
      (ios_simulator_platform_path == "" || ios_simulator_sdk_path == "")) {
    _need_darwin_sdk_run = true
  }
  if (!use_ios_simulator &&
      (ios_device_platform_path == "" || ios_device_sdk_path == "")) {
    _need_darwin_sdk_run = true
  }
}
if (_need_darwin_sdk_run) {
  _args = [ "--print-paths" ]
  if (use_rbe && create_xcode_symlinks) {
    # RBE has a restriction that paths cannot come from outside the build root.
    _args += [
      "--symlink",
      rebase_path("//flutter/prebuilts"),
    ]
  }
  _sdk_result =
      exec_script(rebase_path("//build/mac/darwin_sdk.py"), _args, "scope")
}

# Set SDK paths.
if (mac_host_toolchain_path == "") {
  mac_host_toolchain_path = _sdk_result.toolchain_path
}
assert(mac_host_toolchain_path != "")

if (mac_sdk_path == "") {
  mac_sdk_path = _sdk_result.macosx_sdk_path
}
assert(mac_sdk_path != "")

if (mac_platform_path == "") {
  mac_platform_path = _sdk_result.macosx_platform_path
}
assert(mac_platform_path != "")

if (mac_swift_lib_paths == []) {
  mac_swift_lib_paths += [
    rebase_path("$mac_sdk_path/usr/lib/swift"),
    rebase_path("$mac_host_toolchain_path/usr/lib/swift/macosx"),
  ]
}

if (is_ios) {
  if (ios_platform_path == "" || ios_sdk_path == "") {
    if (use_ios_simulator) {
      if (ios_simulator_platform_path == "") {
        ios_simulator_platform_path = _sdk_result.iphonesimulator_platform_path
      }
      if (ios_simulator_sdk_path == "") {
        ios_simulator_sdk_path = _sdk_result.iphonesimulator_sdk_path
      }
    } else {
      if (ios_device_platform_path == "") {
        ios_device_platform_path = _sdk_result.iphoneos_platform_path
      }
      if (ios_device_sdk_path == "") {
        ios_device_sdk_path = _sdk_result.iphoneos_sdk_path
      }
    }

    if (use_ios_simulator) {
      assert(ios_simulator_platform_path != "")
      assert(ios_simulator_sdk_path != "")
      ios_platform_path = ios_simulator_platform_path
      ios_sdk_path = ios_simulator_sdk_path
    } else {
      assert(ios_device_platform_path != "")
      assert(ios_device_sdk_path != "")
      ios_platform_path = ios_device_platform_path
      ios_sdk_path = ios_device_sdk_path
    }
  }

  if (ios_swift_lib_paths == []) {
    ios_swift_lib_paths += [ rebase_path("$ios_sdk_path/usr/lib/swift") ]
    if (use_ios_simulator) {
      ios_swift_lib_paths += [ rebase_path(
              "$mac_host_toolchain_path/usr/lib/swift/iphonesimulator") ]
    } else {
      ios_swift_lib_paths +=
          [ rebase_path("$mac_host_toolchain_path/usr/lib/swift/iphoneos") ]
    }
  }
}