# Copyright 2016 The PDFium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

import("//build/config/clang/clang.gni")
import("//build/config/gclient_args.gni")
import("//testing/test.gni")
import("pdfium.gni")

group("default") {
  testonly = true
  deps = [ ":pdfium" ]
  if (pdf_is_standalone) {
    deps += [ ":pdfium_all" ]
  }
}

group("freetype_common") {
  public_deps = []
  if (pdf_bundle_freetype) {
    public_deps += [ "third_party:fx_freetype" ]
  } else {
    public_deps += [ "//build/config/freetype" ]
  }
}

config("pdfium_common_config") {
  cflags = []
  cflags_cc = []
  ldflags = []
  include_dirs = [ "." ]
  defines = []

  if (!use_system_libopenjpeg2) {
    defines += [ "OPJ_STATIC" ]
  }

  if (pdf_enable_click_logging) {
    defines += [ "PDF_ENABLE_CLICK_LOGGING" ]
  }

  if (pdf_use_skia && pdf_enable_fontations) {
    defines += [ "PDF_ENABLE_FONTATIONS" ]
  }

  if (pdf_use_skia && pdf_enable_skia_typeface_checks) {
    defines += [ "PDF_ENABLE_SKIA_TYPEFACE_CHECKS" ]
  }

  if (pdf_enable_rust_bmp) {
    defines += [ "PDF_ENABLE_RUST_BMP" ]
  }

  if (pdf_use_skia && pdf_enable_rust_jpeg) {
    defines += [ "PDF_ENABLE_RUST_JPEG" ]
  }

  if (pdf_enable_rust_png) {
    defines += [ "PDF_ENABLE_RUST_PNG" ]
  }

  if (pdf_use_partition_alloc) {
    defines += [ "PDF_USE_PARTITION_ALLOC" ]
  }

  if (is_win) {
    # Assume UTF-8 by default to avoid code page dependencies.
    cflags += [ "/utf-8" ]
  }

  if (is_clang) {
    # May flag some issues when converting int to size_t.
    cflags += [ "-Wtautological-unsigned-zero-compare" ]

    # Enforce style guide decision regarding CTAD usage:
    # https://google.github.io/styleguide/cppguide.html#CTAD
    cflags += [ "-Wctad-maybe-unsupported" ]
  }

  if (!is_win && !is_clang) {
    cflags += [
      # GCC assumes that control can get past an exhaustive switch and then
      # warns if there's no return there.
      "-Wno-return-type",
    ]
  }

  if (clang_use_chrome_plugins) {
    # Catch misuse of C-style pointers.
    # TODO(crbug.com/1320670): enable for non-debug builds once this stops
    # interfering with code generation.
    # TODO(tsepez): enable for windows, too.
    if (is_debug && pdf_use_partition_alloc && !is_win) {
      cflags += [
        "-Xclang",
        "-plugin-arg-raw-ptr-plugin",
        "-Xclang",
        "check-raw-ptr-fields",

        "-Xclang",
        "-plugin-arg-raw-ptr-plugin",
        "-Xclang",
        "raw-ptr-exclude-path=public",

        "-Xclang",
        "-plugin-arg-raw-ptr-plugin",
        "-Xclang",
        "raw-ptr-exclude-path=test",

        # TODO(tsepez): enforce raw_ref<> as well.
        # "-Xclang",
        # "-plugin-arg-raw-ptr-plugin",
        # "-Xclang",
        # "check-raw-ref-fields",
      ]
      defines += [ "PDF_ENABLE_UNOWNED_PTR_EXCLUSION" ]
    }

    # Catch misuse of cppgc in XFA.
    if (pdf_enable_xfa) {
      cflags += [
        "-Xclang",
        "-add-plugin",
        "-Xclang",
        "blink-gc-plugin",
      ]

      # Disable GC plugin forbidding off-heap collections of GCed:
      cflags += [
        "-Xclang",
        "-plugin-arg-blink-gc-plugin",
        "-Xclang",
        "disable-off-heap-collections-of-gced-check",
      ]
    }
  }
}

config("pdfium_implementation_config") {
  defines = [ "FPDF_IMPLEMENTATION" ]
  visibility = [ ":pdfium_public_headers" ]
}

config("pdfium_public_config") {
  defines = []

  if (pdf_enable_brotli) {
    defines += [ "PDF_ENABLE_BROTLI" ]
  }

  if (pdf_enable_v8) {
    defines += [ "PDF_ENABLE_V8" ]

    if (pdf_enable_xfa) {
      defines += [ "PDF_ENABLE_XFA" ]
    }
  }

  if (pdf_use_agg) {
    defines += [ "PDF_USE_AGG" ]
  }
  if (pdf_use_skia) {
    defines += [ "PDF_USE_SKIA" ]
  }
}

config("pdfium_core_config") {
  cflags = []
  configs = [
    ":pdfium_common_config",
    ":pdfium_public_config",
    "//build/config/compiler:noshadowing",
  ]
  defines = []
  if (is_clang) {
    cflags += [
      "-Wcovered-switch-default",
      "-Wlifetime-safety-permissive",
    ]
  }
}

config("pdfium_strict_config") {
  configs = [
    ":pdfium_core_config",
    "//build/config/compiler:wexit_time_destructors",
    "//build/config/compiler:wglobal_constructors",
  ]
}

config("pdfium_noshorten_config") {
  cflags = []
  if (is_clang) {
    cflags += [ "-Wshorten-64-to-32" ]
  }
}

source_set("pdfium_public_headers_impl") {
  sources = [
    "public/cpp/fpdf_deleters.h",
    "public/cpp/fpdf_scopers.h",
    "public/fpdf_annot.h",
    "public/fpdf_attachment.h",
    "public/fpdf_catalog.h",
    "public/fpdf_dataavail.h",
    "public/fpdf_doc.h",
    "public/fpdf_edit.h",
    "public/fpdf_ext.h",
    "public/fpdf_flatten.h",
    "public/fpdf_formfill.h",
    "public/fpdf_fwlevent.h",
    "public/fpdf_javascript.h",
    "public/fpdf_ppo.h",
    "public/fpdf_progressive.h",
    "public/fpdf_save.h",
    "public/fpdf_searchex.h",
    "public/fpdf_signature.h",
    "public/fpdf_structtree.h",
    "public/fpdf_sysfontinfo.h",
    "public/fpdf_text.h",
    "public/fpdf_transformpage.h",
    "public/fpdfview.h",
  ]
}

group("pdfium_public_headers") {
  public_deps = [ ":pdfium_public_headers_impl" ]
  public_configs = [
    ":pdfium_public_config",
    ":pdfium_implementation_config",
  ]
}

component("pdfium") {
  output_name = "pdfium"
  libs = []
  configs += [ ":pdfium_strict_config" ]
  public_configs = [ ":pdfium_public_config" ]

  deps = [
    "constants",
    "core/fpdfapi/page",
    "core/fpdfapi/parser",
    "core/fpdfdoc",
    "core/fxcodec",
    "core/fxcrt",
    "core/fxge",
    "fpdfsdk",
    "fpdfsdk/formfiller",
    "fxjs",
  ]

  public_deps = [
    ":pdfium_public_headers_impl",
    "core/fxcrt",
  ]

  if (pdf_enable_xfa) {
    deps += [
      "fpdfsdk/fpdfxfa",
      "xfa/fxfa",
      "xfa/fxfa/parser",
    ]
  }

  if (is_win) {
    libs += [
      "advapi32.lib",
      "gdi32.lib",
      "user32.lib",
    ]
  }

  if (is_mac) {
    frameworks = [
      "AppKit.framework",
      "CoreFoundation.framework",
    ]
  }

  if (pdf_is_complete_lib) {
    static_component_type = "static_library"
    complete_static_lib = true
    configs -= [ "//build/config/compiler:thin_archive" ]
  }
}

# Targets below this are only visible within this file.
visibility = [ ":*" ]

group("pdfium_unittest_deps") {
  testonly = true
  public_deps = [
    "core/fxcrt",
    "testing:unit_test_support",
    "//testing/gmock",
    "//testing/gtest",
  ]
  visibility += [
    "core/*",
    "fpdfsdk/*",
    "fxbarcode/*",
    "fxjs/*",
    "testing/*",
    "xfa/*",
  ]
}

test("pdfium_unittests") {
  testonly = true
  sources = [ "testing/unit_test_main.cpp" ]
  deps = [
    "core/fdrm:unittests",
    "core/fpdfapi/edit:unittests",
    "core/fpdfapi/font:unittests",
    "core/fpdfapi/page:unittests",
    "core/fpdfapi/parser:unittests",
    "core/fpdfapi/render:unittests",
    "core/fpdfdoc:unittests",
    "core/fpdftext:unittests",
    "core/fxcodec:unittests",
    "core/fxcrt",
    "core/fxcrt:unittests",
    "core/fxge:unittests",
    "fpdfsdk:unittests",
    "testing:unit_test_support",
    "testing:unittests",
    "testing/image_diff:unittests",
    "//testing/gmock",
    "//testing/gtest",
  ]
  configs += [ ":pdfium_core_config" ]
  if (is_android) {
    use_raw_android_executable = true
  }
  if (pdf_enable_v8) {
    configs += [ "//v8:external_startup_data" ]
    deps += [
      "fxjs:unittests",
      "//v8",
    ]
    if (pdf_enable_xfa) {
      deps += [
        "core/fxcrt/css:unittests",
        "fxbarcode:unittests",
        "xfa/fde:unittests",
        "xfa/fgas/crt:unittests",
        "xfa/fgas/font:unittests",
        "xfa/fgas/layout:unittests",
        "xfa/fxfa:unittests",
        "xfa/fxfa/formcalc:unittests",
        "xfa/fxfa/parser:unittests",
      ]
    }
  }
}

group("pdfium_embeddertest_deps") {
  testonly = true
  public_deps = [
    ":pdfium_public_headers",
    "core/fxcrt",
    "testing:embedder_test_support",
    "//testing/gmock",
    "//testing/gtest",
  ]
  visibility += [
    "core/*",
    "fpdfsdk/*",
    "fxjs/*",
    "xfa/*",
  ]
}

test("pdfium_embeddertests") {
  testonly = true
  sources = [ "testing/embedder_test_main.cpp" ]
  deps = [
    ":pdfium_embeddertest_deps",
    "core/fpdfapi/edit:embeddertests",
    "core/fpdfapi/parser:embeddertests",
    "core/fpdfapi/render:embeddertests",
    "core/fxcodec:embeddertests",
    "core/fxcrt",
    "core/fxge:embeddertests",
    "fpdfsdk:embeddertests",
    "fpdfsdk/formfiller:embeddertests",
    "fpdfsdk/pwl:embeddertests",
    "testing/image_diff",
    "//testing/gmock",
    "//testing/gtest",
  ]
  include_dirs = [ "testing/gmock/include" ]
  configs += [ ":pdfium_core_config" ]

  if (is_android) {
    ignore_all_data_deps = true
    use_raw_android_executable = true
  }

  if (build_with_chromium && pdf_use_skia) {
    deps += [ "testing:discardable_memory_allocator" ]
    configs += [ "testing:pdfium_in_chromium_config" ]
  }

  if (pdf_enable_v8) {
    deps += [
      "fxjs:embeddertests",
      "//v8",
    ]
    configs += [ "//v8:external_startup_data" ]
  }

  if (pdf_enable_xfa) {
    deps += [
      "fpdfsdk/fpdfxfa:embeddertests",
      "xfa/fwl:embeddertests",
      "xfa/fxfa/layout:embeddertests",
      "xfa/fxfa/parser:embeddertests",
    ]
  }
}

executable("pdfium_diff") {
  visibility += [ "testing/tools:test_runner_py" ]
  testonly = true
  sources = [ "testing/image_diff/image_diff.cpp" ]
  deps = [
    "core/fxcrt",
    "testing:path_service",
    "testing:pixel_diff_utils",
    "testing/image_diff",
    "//build/win:default_exe_manifest",
  ]
  configs += [ ":pdfium_strict_config" ]
}

group("pdfium_all") {
  testonly = true
  deps = [
    ":pdfium_diff",
    ":pdfium_embeddertests",
    ":pdfium_unittests",
    "testing:pdfium_test",
    "testing/fuzzers",
  ]

  if (pdf_is_standalone) {
    deps += [ "testing/tools:test_runner_py" ]
  }
}

# Makes additional targets reachable only for "gn check". These are not always
# built by the "all" Ninja target, which uses the "default" group, which in turn
# depends on the "pdfium_all" group.
group("gn_check") {
  deps = []

  # TODO(crbug.com/pdfium/1832): Remove !is_android when //third_party/expat is
  # available.
  if (defined(checkout_skia) && checkout_skia && !is_android) {
    deps += [ "//skia" ]
  }
}

# GN evaluates each .gn file once per toolchain, so restricting to default
# toolchain will ensure write_file() is called only once.
if (current_toolchain == default_toolchain) {
  import("//build/gn_logs.gni")

  # Write debug logs to gn_logs.txt.
  _lines = [
             "Generated during 'gn gen' by //BUILD.gn.",
             "",
           ] + build_gn_logs

  write_file("$root_build_dir/gn_logs.txt", _lines)
}