# This file is used by GN for building, which is NOT the build system used for
# building official binaries.
# Please take a look at node.gyp if you are making changes to build system.

import("node.gni")
import("$node_v8_path/gni/snapshot_toolchain.gni")
import("$node_v8_path/gni/v8.gni")

# The actual configurations are put inside a template in unofficial.gni to
# prevent accidental edits from contributors.
template("node_gn_build") {
  config("node_features") {
    defines = []
    if (is_component_build) {
      defines += [
        "USING_UV_SHARED",
        "USING_V8_SHARED",
      ]
    }
    if (node_use_openssl) {
      defines += [ "HAVE_OPENSSL=1" ]
    } else {
      defines += [ "HAVE_OPENSSL=0" ]
    }
    if (node_use_v8_platform) {
      defines += [ "NODE_USE_V8_PLATFORM=1" ]
    } else {
      defines += [ "NODE_USE_V8_PLATFORM=0" ]
    }
    if (node_enable_inspector) {
      defines += [ "HAVE_INSPECTOR=1" ]
    } else {
      defines += [ "HAVE_INSPECTOR=0" ]
    }
    if (node_use_node_code_cache) {
      defines += [ "NODE_USE_NODE_CODE_CACHE=1"]
    }
    if (v8_enable_i18n_support) {
      defines += [ "NODE_HAVE_I18N_SUPPORT=1" ]
    }
  }

  config("node_external_config") {
    include_dirs = [
      target_gen_dir,
      "src",
    ]
    defines = [
      "NODE_WANT_INTERNALS=1",
      "NODE_EMBEDDER_MODULE_VERSION=$node_module_version",
    ]
    configs = [
      ":node_features",
      "$node_v8_path:external_config",
    ]
  }

  config("node_internal_config") {
    visibility = [
      ":*",
      "src/inspector:*",
    ]
    configs = [ ":node_external_config" ]
    libs = []
    cflags = [ "-Wno-microsoft-include" ]
    cflags_cc = [
      "-Wno-deprecated-declarations",
      "-Wno-extra-semi",
      "-Wno-implicit-fallthrough",
      "-Wno-macro-redefined",
      "-Wno-return-type",
      "-Wno-shadow",
      "-Wno-sometimes-uninitialized",
      "-Wno-string-plus-int",
      "-Wno-string-conversion",
      "-Wno-unreachable-code",
      "-Wno-unreachable-code-break",
      "-Wno-unreachable-code-return",
      "-Wno-unused-label",
      "-Wno-unused-private-field",
      "-Wno-unused-variable",
      "-Wno-unused-function",
    ]

    if (current_cpu == "x86") {
      node_arch = "ia32"
    } else {
      node_arch = current_cpu
    }
    if (target_os == "win") {
      node_platform = "win32"
    } else if (target_os == "mac") {
      node_platform = "darwin"
    } else {
      node_platform = target_os
    }
    defines = [
      "NODE_ARCH=\"$node_arch\"",
      "NODE_PLATFORM=\"$node_platform\"",
      "NODE_REPORT"
    ]

    if (is_win) {
      defines += [
        "NOMINMAX",
        "_UNICODE=1",
      ]
    } else {
      defines += [ "__POSIX__" ]
    }
    if (node_tag != "") {
      defines += [ "NODE_TAG=\"$node_tag\"" ]
    }
    if (node_v8_options != "") {
      defines += [ "NODE_V8_OPTIONS=\"$node_v8_options\"" ]
    }
    if (node_release_urlbase != "") {
      defines += [ "NODE_RELEASE_URLBASE=\"$node_release_urlbase\"" ]
    }
    if (node_use_openssl) {
      defines += [
        "NODE_OPENSSL_SYSTEM_CERT_PATH=\"$node_openssl_system_ca_path\"",
      ]
    }
  }

  gypi_values = exec_script("./tools/gypi_to_gn.py",
                            [ rebase_path("node.gyp"),
                              "--replace=<@(node_builtin_shareable_builtins)=" ],
                            "scope",
                            [ "node.gyp" ])

  source_set("libnode") {
    configs += [ ":node_internal_config" ]
    public_configs = [
      ":node_external_config",
      "deps/googletest:googletest_config",
    ]
    public_deps = [
      "deps/ada",
      "deps/uv",
      "deps/simdjson",
      "$node_v8_path",
    ]
    deps = [
      ":run_node_js2c",
      "deps/brotli",
      "deps/cares",
      "deps/histogram",
      "deps/llhttp",
      "deps/nbytes",
      "deps/nghttp2",
      "deps/ngtcp2",
      "deps/postject",
      "deps/simdutf",
      "deps/sqlite",
      "deps/uvwasi",
      "//third_party/zlib",
      "$node_v8_path:v8_libplatform",
    ]

    sources = [
      "$target_gen_dir/node_javascript.cc",
    ] + gypi_values.node_sources

    if (is_win) {
      libs = [ "psapi.lib" ]
    }
    if (is_mac) {
      frameworks = [ "CoreFoundation.framework" ]
    }
    if (is_posix) {
      configs -= [ "//build/config/gcc:symbol_visibility_hidden" ]
      configs += [ "//build/config/gcc:symbol_visibility_default" ]
    }

    if (v8_enable_i18n_support) {
      deps += [ "//third_party/icu" ]
    }
    if (node_use_openssl) {
      deps += [ "deps/ncrypto" ]
      public_deps += [ "deps/openssl" ]
      sources += gypi_values.node_crypto_sources
    }
    if (node_enable_inspector) {
      deps += [
        "src/inspector:node_protocol_generated_sources",
        "src/inspector:v8_inspector_compress_protocol_json",
      ]
      include_dirs = [
        "$target_gen_dir/src",
        "$target_gen_dir/src/inspector",
      ]
      node_inspector = exec_script(
          "./tools/gypi_to_gn.py",
          [ rebase_path("src/inspector/node_inspector.gypi"),
            "--replace=<(SHARED_INTERMEDIATE_DIR)=$target_gen_dir" ],
          "scope",
          [ "src/inspector/node_inspector.gypi" ])
      sources += node_inspector.node_inspector_sources +
                 node_inspector.node_inspector_generated_sources
    }
  }

  executable(target_name) {
    forward_variables_from(invoker, "*")

    sources = [ "src/node_main.cc" ]
    deps = [
      ":libnode",
      "//build/win:default_exe_manifest",
    ]
    if (node_use_node_snapshot) {
      sources += [ "$target_gen_dir/node_snapshot.cc" ]
      deps += [ ":run_node_mksnapshot" ]
      if (is_clang || !is_win) {
        cflags_cc = [
          "-Wno-c++11-narrowing",
          "-Wno-shadow",
        ]
      }
    } else {
      sources += [ "src/node_snapshot_stub.cc" ]
    }
    output_name = "node"

    if (is_apple) {
      # Default optimization on apple adds "-dead_strip" to ldflags, which would
      # strip exported V8 and NAPI symbols, has to remove it to make native
      # modules work.
      # There is almost no performance penalty since we are only removing
      # optimization on the node_main.cc.
      configs -= [ "//build/config/compiler:default_optimization" ]
    }
  }

  if (node_use_node_snapshot) {
    if (current_toolchain == v8_snapshot_toolchain) {
      executable("node_mksnapshot") {
        configs += [ ":node_internal_config", ":disable_icf" ]
        sources = [
          "src/node_snapshot_stub.cc",
          "tools/snapshot/node_mksnapshot.cc",
        ]
        deps = [ ":libnode" ]
      }

      # This config disables a link time optimization "ICF", which may merge
      # different functions into one if the function signature and body of them are
      # identical.
      #
      # ICF breaks 1:1 mappings of the external references for V8 snapshot, so we
      # disable it while taking a V8 snapshot.
      config("disable_icf") {
        visibility = [ ":*" ]  # Only targets in this file can depend on this.
        if (is_win) {
          ldflags = [ "/OPT:NOICF" ]  # link.exe, but also lld-link.exe.
        } else if (is_apple && !use_lld) {
          ldflags = [ "-Wl,-no_deduplicate" ]  # ld64.
        } else if (use_gold || use_lld) {
          ldflags = [ "-Wl,--icf=none" ]
        }
      }
    }

    action("run_node_mksnapshot") {
      deps = [ ":node_mksnapshot($v8_snapshot_toolchain)" ]
      script = "$node_v8_path/tools/run.py"
      sources = []
      data = []

      mksnapshot_dir = get_label_info(":node_mksnapshot($v8_snapshot_toolchain)",
                                      "root_out_dir")

      outputs = [ "$target_gen_dir/node_snapshot.cc" ]
      args = [
        "./" + rebase_path(mksnapshot_dir + "/node_mksnapshot", root_build_dir),
        rebase_path("$target_gen_dir/node_snapshot.cc", root_build_dir),
      ]
    }
  }

  action("generate_config_gypi") {
    deps = [ "$node_v8_path:v8_generate_features_json" ]
    script = "tools/generate_config_gypi.py"
    outputs = [ "$target_gen_dir/config.gypi" ]
    depfile = "$target_gen_dir/$target_name.d"
    args = rebase_path(outputs, root_build_dir) + [
      "--out-dir", rebase_path(root_build_dir, root_build_dir),
      "--dep-file", rebase_path(depfile, root_build_dir),
      "--node-gn-path", node_path,
    ]
  }

  executable("node_js2c") {
    deps = [
      "deps/simdutf",
      "deps/uv",
    ]
    sources = [
      "tools/js2c.cc",
      "tools/executable_wrapper.h",
      "src/embedded_data.cc",
      "src/embedded_data.h",
    ]
    include_dirs = [ "src" ]
  }

  action("run_node_js2c") {
    script = "$node_v8_path/tools/run.py"
    deps = [
      ":node_js2c($host_toolchain)",
      ":generate_config_gypi",
    ]

    node_deps_files = gypi_values.deps_files + node_builtin_shareable_builtins
    node_library_files = exec_script("./tools/search_files.py",
                                     [ rebase_path(".", root_build_dir),
                                       rebase_path("lib", root_build_dir),
                                       "js" ],
                                     "list lines")

    inputs = node_library_files +
             node_deps_files +
             [ "$target_gen_dir/config.gypi" ]
    outputs = [ "$target_gen_dir/node_javascript.cc" ]

    # Get the path to node_js2c executable of the host toolchain.
    if (host_os == "win") {
      host_executable_suffix = ".exe"
    } else {
      host_executable_suffix = ""
    }
    node_js2c_path =
        get_label_info(":node_js2c($host_toolchain)", "root_out_dir") + "/" +
        get_label_info(":node_js2c($host_toolchain)", "name") +
        host_executable_suffix

    args = [ rebase_path(node_js2c_path),
             rebase_path("$target_gen_dir/node_javascript.cc"),
             "--root", rebase_path("."),
             "lib", rebase_path("$target_gen_dir/config.gypi") ] +
           node_deps_files
  }

  executable("node_cctest") {
    testonly = true
    configs += [ ":node_internal_config" ]

    deps = [
      ":libnode",
      "deps/googletest",
      "deps/googletest:gtest_main",
      "deps/nbytes",
      "deps/simdutf",
    ]

    sources = gypi_values.node_cctest_sources
    if (node_use_openssl) {
      deps += [ "deps/ncrypto" ]
      sources += gypi_values.node_cctest_openssl_sources
    }
    if (node_enable_inspector) {
      sources += gypi_values.node_cctest_inspector_sources
    }
  }

  executable("node_embedtest") {
    output_name = "embedtest"
    testonly = true
    deps = [ ":libnode" ]
    include_dirs = [ "tools" ]
    sources = [
      "src/node_snapshot_stub.cc",
      "test/embedding/embedtest.cc",
    ]
  }

  executable("overlapped_checker") {
    output_name = "overlapped-checker"
    testonly = true
    if (is_win) {
      sources = [ "test/overlapped-checker/main_win.c" ]
    } else {
      sources = [ "test/overlapped-checker/main_unix.c" ]
    }
  }
}