if (is_debug) {
  node_configuration = "Debug"
} else {
  node_configuration = "Release"
}

action("configure_node") {
  script = "//third_party/electron_node/configure"
  ssl_libname_suffix = ""
  if (is_win) {
    ssl_libname_suffix = ".dll"
  }
  args = [
    "--enable-static",
    "--release-urlbase=https://atom.io/download/electron",
    "--shared-openssl",
    "--shared-openssl-includes=" + rebase_path("//third_party/boringssl/src/include"),
    "--shared-openssl-libname=boringssl" + ssl_libname_suffix,
    "--shared-openssl-libpath=" + rebase_path(root_out_dir),
    "--without-npm",
    "--without-bundled-v8",
    "--without-dtrace",
    "--without-etw",
    "--without-perfctr",
    "--without-v8-platform",
    "--without-intl",
    "--prefix=",
    "--config-out-dir=" + rebase_path(target_gen_dir),
    "--no-run-gyp",
  ]
  if (is_component_build) {
    args += [ "--shared" ]
  }
  outputs = [
    "$target_gen_dir/config.gypi",
  ]
}

action("gyp_node") {
  script = "//tools/gyp/gyp_main.py"
  deps = [ ":configure_node" ]
  inputs = [
    "//third_party/electron_node/common.gypi",
    "//third_party/electron_node/node.gyp",
    "//third_party/electron_node/node.gypi",
    "$target_gen_dir/config.gypi",
    "node_override.gypi",
  ]
  outputs = [
    "$target_out_dir/$node_configuration/build.ninja",
  ]

  # By default, node will build a dylib called something like
  # libnode.$node_module_version.dylib, which is inconvenient for our
  # purposes (since it makes the library's name unpredictable). This forces
  # it to drop the module_version from the filename and just produce
  # `libnode.dylib`.
  if (is_mac) {
    shlib_suffix = "dylib"
  } else if (is_win) {
    shlib_suffix = "dll"
  } else if (is_linux) {
    shlib_suffix = "so"
  }

  args = [
    "-I", rebase_path("$target_gen_dir/config.gypi", root_build_dir),
    "-I", rebase_path("node_override.gypi", root_build_dir),
    "-I", rebase_path("//third_party/electron_node/common.gypi", root_build_dir),
    "-D", "component=shared_library",
    "-D", "target_arch=$target_cpu",
    "-D", "host_arch=$host_cpu",
    "-D", "config_gypi=" + rebase_path("$target_gen_dir/config.gypi"),
    # This has _gn suffixed otherwise it gets overridden by a shlib_suffix
    # that's set in node's gyp files. Don't ask me 🤷
    "-D", "shlib_suffix_gn=" + shlib_suffix,
    "-D", "llvm_dir=" + rebase_path("//third_party/llvm-build/Release+Asserts"),
    "-D", "libcxx_dir=" + rebase_path("//buildtools/third_party/libc++"),
    "-D", "libcxxabi_dir=" + rebase_path("//buildtools/third_party/libc++abi"),
    "-D", "is_component_build=$is_component_build",
    "-Goutput_dir=./$target_out_dir", # bizarrely, gyp generates from the build root instead of from cwd
    "-fninja",
    rebase_path("//third_party/electron_node/node.gyp", root_build_dir),
  ]
}

action("build_node") {
  deps = [
    "//third_party/boringssl",
    "//third_party/icu",
    "//v8",
    "//v8:v8_libbase",
    "//v8:v8_libplatform",
    ":gyp_node",
  ]
  script = "//electron/build/run-ninja.py"
  args = [
    "-C", rebase_path(target_out_dir, root_build_dir) + "/$node_configuration",
    "node_lib",
    "libuv", "nghttp2", "cares", "http_parser", "zlib"
  ]
  if (is_mac) {
    if (is_component_build) {
      outputs = [ "$target_out_dir/$node_configuration/libnode.dylib" ]
    } else {
      outputs = [
        "$target_out_dir/$node_configuration/libnode.a",
        "$target_out_dir/$node_configuration/libcares.a",
        "$target_out_dir/$node_configuration/libhttp_parser.a",
        "$target_out_dir/$node_configuration/libnghttp2.a",
        "$target_out_dir/$node_configuration/libuv.a",
        "$target_out_dir/$node_configuration/libzlib.a",
      ]
    }
  }
  if (is_linux) {
    if (is_component_build) {
      outputs = [ "$target_out_dir/$node_configuration/lib/libnode.so" ]
    } else {
      outputs = [
        "$target_out_dir/$node_configuration/obj/third_party/electron_node/libnode.a",
        "$target_out_dir/$node_configuration/obj/third_party/electron_node/deps/uv/libuv.a",
        "$target_out_dir/$node_configuration/obj/third_party/electron_node/deps/nghttp2/libnghttp2.a",
        "$target_out_dir/$node_configuration/obj/third_party/electron_node/deps/cares/libcares.a",
        "$target_out_dir/$node_configuration/obj/third_party/electron_node/deps/http_parser/libhttp_parser.a",
        "$target_out_dir/$node_configuration/obj/third_party/electron_node/deps/zlib/libzlib.a",
      ]
    }
  }
  if (is_win) {
    if (is_component_build) {
      outputs = [
        "$target_out_dir/$node_configuration/node.dll.lib",
        "$target_out_dir/$node_configuration/node.dll",
      ]
    } else {
      outputs = [
        "$target_out_dir/$node_configuration/obj/third_party/electron_node/node.lib",
        "$target_out_dir/$node_configuration/obj/third_party/electron_node/deps/uv/libuv.lib",
        "$target_out_dir/$node_configuration/obj/third_party/electron_node/deps/nghttp2/nghttp2.lib",
        "$target_out_dir/$node_configuration/obj/third_party/electron_node/deps/cares/cares.lib",
        "$target_out_dir/$node_configuration/obj/third_party/electron_node/deps/http_parser/http_parser.lib",
        "$target_out_dir/$node_configuration/obj/third_party/electron_node/deps/zlib/zlib.lib",
      ]
    }
  }
}

node_libs = get_target_outputs(":build_node")

copy("copy_node") {
  deps = [ ":build_node" ]
  sources = node_libs
  outputs = [ "$root_out_dir/{{source_file_part}}" ]
}

config("node_config") {
  include_dirs = [
    "//third_party/electron_node/src",
    "//third_party/electron_node/deps/uv/include",
    "//third_party/electron_node/deps/cares/include",
  ]
  if (is_win && is_component_build) {
    # Windows builds need both the .dll and the .dll.lib copied, but only the
    # .dll.lib goes in the `libs` list.
    libs = [ node_libs[0] ]
  } else {
    libs = node_libs
  }
  cflags_cc = [
    "-Wno-deprecated-declarations",
  ]
  defines = [
    # We need to access internal implementations of Node.
    "NODE_WANT_INTERNALS=1",
    "HAVE_OPENSSL=1",
    "HAVE_INSPECTOR=1",
  ]
  if (is_component_build) {
    defines += [ "NODE_SHARED_MODE" ]
  }
}

group("node") {
  public_configs = [ ":node_config" ]
  public_deps = [ ":copy_node" ]
}

node_headers_dir = "$root_gen_dir/node_headers/include/node"

copy("node_headers") {
  deps = [ ":configure_node" ]
  sources = [
    "$target_gen_dir/config.gypi",
    "//third_party/electron_node/common.gypi",
    "//third_party/electron_node/src/callback_scope.h",
    "//third_party/electron_node/src/core.h",
    "//third_party/electron_node/src/exceptions.h",
    "//third_party/electron_node/src/node.h",
    "//third_party/electron_node/src/node_api.h",
    "//third_party/electron_node/src/node_api_types.h",
    "//third_party/electron_node/src/node_buffer.h",
    "//third_party/electron_node/src/node_object_wrap.h",
    "//third_party/electron_node/src/node_version.h",
  ]
  outputs = [ "$node_headers_dir/{{source_file_part}}" ]
}

copy("v8_headers") {
  sources = [
    "//v8/include/v8-inspector-protocol.h",
    "//v8/include/v8-inspector.h",
    "//v8/include/v8-platform.h",
    "//v8/include/v8-profiler.h",
    "//v8/include/v8-testing.h",
    "//v8/include/v8-util.h",
    "//v8/include/v8-value-serializer-version.h",
    "//v8/include/v8-version-string.h",
    "//v8/include/v8-version.h",
    "//v8/include/v8.h",
    "//v8/include/v8config.h",
  ]
  outputs = [ "$node_headers_dir/{{source_file_part}}" ]
}

copy("v8_platform_headers") {
  sources = [
    "//v8/include/libplatform/libplatform-export.h",
    "//v8/include/libplatform/libplatform.h",
    "//v8/include/libplatform/v8-tracing.h",
  ]
  outputs = [ "$node_headers_dir/libplatform/{{source_file_part}}" ]
}

copy("uv_headers") {
  sources = [
    "//third_party/electron_node/deps/uv/include/android-ifaddrs.h",
    "//third_party/electron_node/deps/uv/include/pthread-barrier.h",
    "//third_party/electron_node/deps/uv/include/stdint-msvc2008.h",
    "//third_party/electron_node/deps/uv/include/tree.h",
    "//third_party/electron_node/deps/uv/include/uv-aix.h",
    "//third_party/electron_node/deps/uv/include/uv-bsd.h",
    "//third_party/electron_node/deps/uv/include/uv-darwin.h",
    "//third_party/electron_node/deps/uv/include/uv-errno.h",
    "//third_party/electron_node/deps/uv/include/uv-linux.h",
    "//third_party/electron_node/deps/uv/include/uv-os390.h",
    "//third_party/electron_node/deps/uv/include/uv-posix.h",
    "//third_party/electron_node/deps/uv/include/uv-sunos.h",
    "//third_party/electron_node/deps/uv/include/uv-threadpool.h",
    "//third_party/electron_node/deps/uv/include/uv-unix.h",
    "//third_party/electron_node/deps/uv/include/uv-version.h",
    "//third_party/electron_node/deps/uv/include/uv-win.h",
    "//third_party/electron_node/deps/uv/include/uv.h",
  ]
  outputs = [ "$node_headers_dir/{{source_file_part}}" ]
}

copy("zlib_headers") {
  sources = [
    "//third_party/electron_node/deps/zlib/zconf.h",
    "//third_party/electron_node/deps/zlib/zlib.h",
  ]
  outputs = [ "$node_headers_dir/{{source_file_part}}" ]
}

group("headers") {
  public_deps = [
    ":node_headers",
    ":uv_headers",
    ":v8_headers",
    ":v8_platform_headers",
    ":zlib_headers",
  ]
}