# Copyright 2018 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("//build/config/android/config.gni")
import("//build/config/android/rules.gni")
import("//build/util/version.gni")
import("//chrome/android/chrome_public_apk_tmpl.gni")

if (!defined(default_trichrome_certdigest)) {
  default_trichrome_certdigest =
      "32a2fc74d731105859e5a85df16d95f102d85b22099b8064c5d8915c61dad1e0"
}

declare_args() {
  # The package name for the Trichrome static shared library on Android.
  trichrome_library_package = "org.chromium.trichromelibrary"

  # The SHA256 certificate digest for the Trichrome static shared library on
  # Android. You can use "apksigner verify --print-certs" on the signed APK to
  # calculate the correct digest.
  trichrome_certdigest = default_trichrome_certdigest

  # WIP: Enable synchronized proguard for Trichrome. (http://crbug.com/901465)
  # Only affects trichrome targets when !is_java_debug.
  enable_trichrome_synchronized_proguard = false
}

trichrome_jinja_variables = [
  "min_sdk_version=29",
  "target_sdk_version=$android_sdk_version",
  "trichrome_library=$trichrome_library_package",
  "trichrome_certdigest=$trichrome_certdigest",
  "use32bitAbi=android:use32bitAbi=\"true\"",
]

trichrome_synchronized_proguard =
    enable_trichrome_synchronized_proguard && !is_java_debug

template("trichrome_library_apk_tmpl") {
  android_apk(target_name) {
    forward_variables_from(invoker,
                           [
                             "android_manifest",
                             "android_manifest_dep",
                             "apk_name",
                             "expected_android_manifest",
                             "expected_libs_and_assets",
                             "min_sdk_version",
                             "target_sdk_version",
                           ])

    # TODO(torne): since there's no real java code in the library right now,
    # leave out the build hooks and let them get compiled into each APK. Later
    # this should probably be in the library.
    no_build_hooks = true

    alternative_android_sdk_dep = webview_framework_dep
    if (trichrome_synchronized_proguard) {
      # TODO(crbug.com/956839): Remove this once R8 fixes the class merging
      # and/or inlining bugs.
      disable_r8_outlining = true
      if (defined(invoker.webview_target) && defined(invoker.chrome_target)) {
        shared_resources_allowlist_locales = locales
        static_library_dependent_targets = [
          {
            name = invoker.webview_target
            is_resource_ids_provider = true
          },
          {
            name = invoker.chrome_target
            is_resource_ids_provider = false
          },
        ]
      }
    } else {
      # TODO(crbug.com/901465): Remove r_java_root_package_name once shared
      # Java code is moved to the shared library even in debug.
      r_java_root_package_name = "trichrome_lib"
      app_as_shared_lib = true
    }

    # No support for this has been added, also not supported by test runner
    # since trichrome library is used in "additional_apks" in the trichrome
    # bundle smoke tests.
    never_incremental = true

    uncompress_shared_libraries = true
    uncompress_dex = true
    version_name = chrome_version_name

    if (android_64bit_target_cpu) {
      if (invoker.is_64_bit_browser) {
        if (invoker.include_32_bit_webview) {
          version_code = trichrome_64_32_version_code
        } else {
          version_code = trichrome_64_version_code
        }
      } else {
        if (invoker.include_64_bit_webview) {
          version_code = trichrome_32_64_version_code
        } else {
          version_code = trichrome_32_version_code
        }
      }
    } else {
      version_code = trichrome_version_code
    }

    min_sdk_version = 29
    target_sdk_version = android_sdk_version

    if (trichrome_synchronized_proguard) {
      product_version_resources_dep =
          "//chrome/android:product_version_resources"
    } else {
      generate_buildconfig_java = false
    }

    # TODO(torne): using icon_resources just to get a temporary icon
    deps = [
      "//android_webview/nonembedded:icon_resources",
      "//third_party/icu:icu_assets",
    ]

    _native_lib_file =
        rebase_path("$root_gen_dir/CHROME_VERSION.json", root_out_dir)
    native_lib_version_arg = "@FileArg($_native_lib_file:full-quoted)"
    native_lib_version_rule = "//build/util:chrome_version_json"

    # Flag whether additional deps and libs should be included for each ABI.
    _include_primary_support = false
    _include_secondary_support = false

    if (android_64bit_target_cpu) {
      # Include the actual browser-bitness libmonochrome library, dependencies
      # (crashpad and linker), and an opposite-bitness placeholder library to
      # ensure that the library is treated as multiarch and gets its Java code
      # precompiled for both architectures.
      if (invoker.is_64_bit_browser) {
        shared_libraries = [ "//chrome/android:libmonochrome_64" ]
        _include_primary_support = true
        if (invoker.include_32_bit_webview) {
          secondary_native_lib_placeholders = [ "libdummy.so" ]
        }
      } else {
        secondary_abi_shared_libraries =
            [ "//chrome/android:monochrome_secondary_abi_lib" ]
        _include_secondary_support = true
        if (invoker.include_64_bit_webview) {
          native_lib_placeholders = [ "libdummy.so" ]
        }
      }
    } else {
      shared_libraries = [ "//chrome/android:libmonochrome" ]
      _include_primary_support = true
    }

    if (_include_primary_support) {
      deps += [
        "//chrome/android:chrome_public_v8_assets",
        "//third_party/crashpad/crashpad/handler:crashpad_handler_trampoline",
      ]
      loadable_modules = [ "$root_out_dir/libcrashpad_handler_trampoline.so" ]
    }
    if (_include_secondary_support) {
      _trampoline =
          "//third_party/crashpad/crashpad/handler:" +
          "crashpad_handler_trampoline($android_secondary_abi_toolchain)"
      deps += [
        "//android_webview:v8_snapshot_secondary_abi_assets",
        _trampoline,
      ]
      _secondary_out_dir = get_label_info(_trampoline, "root_out_dir")
      secondary_abi_loadable_modules =
          [ "$_secondary_out_dir/libcrashpad_handler_trampoline.so" ]
    }

    # http://crbug.com/1042107.
    if (is_component_build) {
      main_component_library = "libmonochrome.cr.so"
    }

    if (!is_java_debug) {
      proguard_enabled = true
      proguard_configs = [
        "//base/android/proguard/chromium_apk.flags",
        "//base/android/proguard/chromium_code.flags",
        "//chrome/android/java/trichrome.flags",
      ]
      if (trichrome_synchronized_proguard) {
        proguard_configs += [
          "//chrome/android/java/static_library_dex_reference_workarounds.flags",
          "//base/android/proguard/enable_obfuscation.flags",
        ]
      } else {
        # Disabling all obfuscation for the Trichrome library as a temporary
        # workaround for crbug.com/1012842. There were naming conflicts between
        # Library and Chrome, since each Proguard run doesn't know about the
        # other, and thus handed out the first names (a, b, c) to both.
        proguard_configs +=
            [ "//base/android/proguard/disable_all_obfuscation.flags" ]
      }
    }
    deps += [ "//chrome/android:trichrome_dummy_resources" ]
  }
}

# An .ssargs file is a text file to specify multiple input files with respective
# parameters, and is used by SuperSize-archive to create multi-container .size
# files. This is used to support SuperSize on Trichrome.
template("write_ssargs_trichrome") {
  # Base names (i.e., no full path) are used because .ssargs files specifies
  # files using paths relative to itself. It is expected for |ssargs_path| to
  # be in the same directory as all Trichrome files whose sizes are measured
  # by SuperSize.
  ssargs_lines = [
    "# Written by build target \"${target_name}.\"",
    "Library -f ${invoker.trichrome_library_basename}",
    "Chrome -f ${invoker.trichrome_chrome_basename}",

    # WebView has no .so files. --java-only is needed to prevent SuperSize
    # from failing.
    "WebView -f ${invoker.trichrome_webview_basename} --java-only",
  ]

  write_file(invoker.ssargs_path, ssargs_lines)
}