# 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.

if (is_android) {
  import("//build/config/android/config.gni")
}

import("//build/fuchsia/sdk.gni")

if (target_cpu == "arm" || target_cpu == "arm64") {
  import("//build/config/arm.gni")
}

if (is_fuchsia) {
  import("//build/toolchain/clang.gni")
}

declare_args() {
  # The runtime mode ("debug", "profile", "release", or "jit_release")
  flutter_runtime_mode = "debug"

  # Whether to use the Skia text shaper module
  flutter_enable_skshaper = false

  # A copy of the enable_bitcode flag from build/toolchain/clang.gni.
  # This needs to be mirrored here because build/toolchain/clang.gni does
  # not exist in the Fuchsia source tree.
  flutter_enable_bitcode = false
}

# feature_defines_list ---------------------------------------------------------

feature_defines_list = [
  "FLUTTER_RUNTIME_MODE_DEBUG=1",
  "FLUTTER_RUNTIME_MODE_PROFILE=2",
  "FLUTTER_RUNTIME_MODE_RELEASE=3",
  "FLUTTER_RUNTIME_MODE_JIT_RELEASE=4",
]

if (flutter_runtime_mode == "debug") {
  feature_defines_list += [
    "FLUTTER_RUNTIME_MODE=1",
    "FLUTTER_JIT_RUNTIME=1",
  ]
} else if (flutter_runtime_mode == "profile") {
  feature_defines_list += [ "FLUTTER_RUNTIME_MODE=2" ]
} else if (flutter_runtime_mode == "release") {
  feature_defines_list += [
    "FLUTTER_RUNTIME_MODE=3",
    "FLUTTER_RELEASE=1",
  ]
} else if (flutter_runtime_mode == "jit_release") {
  feature_defines_list += [
    "FLUTTER_RUNTIME_MODE=4",
    "FLUTTER_RELEASE=1",
    "FLUTTER_JIT_RUNTIME=1",
  ]
} else {
  feature_defines_list += [ "FLUTTER_RUNTIME_MODE=0" ]
}

if (is_fuchsia) {
  # TODO(chinmaygarde): This is always set. The macro may now be removed.
  feature_defines_list += [ "FUCHSIA_SDK=1" ]
}

if ((is_ios || is_mac) && defined(enable_bitcode)) {
  flutter_enable_bitcode = enable_bitcode
}

if (is_ios || is_mac) {
  flutter_cflags_objc = [
    "-Werror=overriding-method-mismatch",
    "-Werror=undeclared-selector",
  ]
  flutter_cflags_objcc = flutter_cflags_objc
}

# This template creates a `source_set` in both standard and "fuchsia_legacy"
# configurations.
#
# The "fuchsia_legacy" configuration includes old, non-embedder API sources and
# defines the LEGACY_FUCHSIA_EMBEDDER symbol.  This template and the config
# are both transitional and will be removed after the embedder API transition
# is complete.
# TODO(fxb/54041): Remove when no longer neccesary.
#
# `sources`, `defines`, `public_configs`, `configs`, `public_deps`, `deps` work
# as they do in a normal `source_set`.
#
# `legacy_deps` is the list of dependencies which should be mutated by
# appending '_fuchsia_legacy' when creating the 2 `source_set`'s.  The template adds
# `legacy_deps` to `public_deps`, whether it mutates them or not.
template("source_set_maybe_fuchsia_legacy") {
  public_deps_non_legacy = []
  deps_non_legacy = []
  if (defined(invoker.public_deps)) {
    public_deps_non_legacy += invoker.public_deps
  }
  if (defined(invoker.deps)) {
    deps_non_legacy += invoker.deps
  }
  if (defined(invoker.public_deps_legacy_and_next)) {
    foreach(legacy_dep, invoker.public_deps_legacy_and_next) {
      public_deps_non_legacy += [ legacy_dep ]
    }
  }
  if (defined(invoker.deps_legacy_and_next)) {
    foreach(legacy_dep, invoker.deps_legacy_and_next) {
      deps_non_legacy += [ legacy_dep ]
    }
  }

  source_set(target_name) {
    forward_variables_from(invoker,
                           [
                             "testonly",
                             "sources",
                             "defines",
                             "public_configs",
                             "configs",
                           ])
    public_deps = public_deps_non_legacy
    deps = deps_non_legacy
  }

  if (is_fuchsia) {
    legagcy_suffix = "_fuchsia_legacy"

    sources_legacy = []
    if (defined(invoker.sources_legacy)) {
      sources_legacy += invoker.sources_legacy
    }
    if (defined(invoker.sources)) {
      sources_legacy += invoker.sources
    }

    public_configs_legacy = [ "//flutter:fuchsia_legacy" ]
    if (defined(invoker.public_configs)) {
      public_configs_legacy += invoker.public_configs
    }

    public_deps_legacy = []
    deps_legacy = []
    if (defined(invoker.public_deps)) {
      public_deps_legacy += invoker.public_deps
    }
    if (defined(invoker.deps)) {
      deps_legacy += invoker.deps
    }
    if (defined(invoker.public_deps_legacy)) {
      public_deps_legacy += invoker.public_deps_legacy
    }
    if (defined(invoker.deps_legacy)) {
      deps_legacy += invoker.deps_legacy
    }
    if (defined(invoker.public_deps_legacy_and_next)) {
      foreach(legacy_dep, invoker.public_deps_legacy_and_next) {
        public_deps_legacy += [ legacy_dep + legagcy_suffix ]
      }
    }
    if (defined(invoker.deps_legacy_and_next)) {
      foreach(legacy_dep, invoker.deps_legacy_and_next) {
        deps_legacy += [ legacy_dep + legagcy_suffix ]
      }
    }

    source_set(target_name + legagcy_suffix) {
      forward_variables_from(invoker,
                             [
                               "testonly",
                               "defines",
                               "configs",
                             ])
      sources = sources_legacy

      public_configs = public_configs_legacy

      public_deps = public_deps_legacy
      deps = deps_legacy
    }
  } else {
    if (defined(invoker.sources_legacy)) {
      not_needed(invoker, [ "sources_legacy" ])
    }
    if (defined(invoker.public_deps_legacy)) {
      not_needed(invoker, [ "public_deps_legacy" ])
    }
    if (defined(invoker.deps_legacy)) {
      not_needed(invoker, [ "deps_legacy" ])
    }
  }
}