# Copyright 2020 The Fuchsia 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/clang/clang.gni")
import("//build/fidl/toolchain.gni")
import("//build/go/go_binary.gni")
import("//build/go/go_library.gni")
import("//build/host.gni")
import("//build/testing/golden_files.gni")
import("//tools/fidl/fidlc/testdata/info.gni")

if (is_host) {
  go_library("codegen") {
    source_dir = "codegen"
    deps = [
      "//tools/fidl/lib/fidlgen",
      "//tools/fidl/lib/fidlgen_cpp",
    ]
    sources = [
      "codegen.go",
      "coding_tables.tmpl",
      "header.tmpl",
      "implementation.tmpl",
      "proxies_and_stubs_protocol.tmpl",
      "proxies_and_stubs_service.tmpl",
      "test_base.tmpl",
      "types_alias.tmpl",
      "types_bits.tmpl",
      "types_const.tmpl",
      "types_enum.tmpl",
      "types_protocol.tmpl",
      "types_struct.tmpl",
      "types_table.tmpl",
      "types_union.tmpl",
    ]
  }

  go_library("coding_tables") {
    source_dir = "coding_tables"
    deps = [
      "//third_party/golibs:golang.org/x/exp",
      "//tools/fidl/lib/fidlgen",
    ]
    sources = [ "ir.go" ]
  }

  go_library("main") {
    deps = [
      ":codegen",
      ":coding_tables",
      "//tools/fidl/lib/fidlgen",
    ]
    sources = [ "main.go" ]
  }

  go_binary("fidlgen_hlcpp") {
    library = ":main"
    sdk_category = "partner"
  }

  golden_files("fidlgen_hlcpp_golden_tests") {
    testonly = true

    formatter = {
      script = "$root_out_dir/clang-format-wrapper"
      inputs = [ "${clang_prefix}/clang-format" ]
      args = [ rebase_path(inputs[0], root_build_dir) ]
      deps = [ "//tools/fidl/clang-format-wrapper" ]
    }

    deps = []
    comparisons = []
    foreach(info, fidl_testdata_info) {
      if (info.denylist + [ "fidlgen_hlcpp" ] - [ "fidlgen_hlcpp" ] ==
          info.denylist) {
        deps += [ "${info.target}_hlcpp_generate($fidl_toolchain)" ]
        _gen_dir = "${info.fidl_gen_dir}/${info.target_name}/hlcpp"
        _include_path = string_replace(info.library, ".", "/") + "/cpp"
        comparisons += [
          {
            golden = "goldens/${info.name}.h.golden"
            candidate = "$_gen_dir/$_include_path/fidl.h"
          },
          {
            golden = "goldens/${info.name}.cc.golden"
            candidate = "$_gen_dir/$_include_path/fidl.cc"
          },
          {
            golden = "goldens/${info.name}_test_base.h.golden"
            candidate = "$_gen_dir/$_include_path/fidl_test_base.h"
          },
          {
            golden = "goldens/${info.name}_tables.c.golden"
            candidate = "$_gen_dir/$_include_path/tables.c"
          },
        ]
      }
    }
  }
}

install_host_tools("host") {
  deps = [ ":fidlgen_hlcpp" ]
  outputs = [ "fidlgen_hlcpp" ]
}

group("goldens") {
  testonly = true

  denylist_key = "device_build_denylist"
  if (is_host) {
    denylist_key = "host_build_denylist"
  }

  deps = []
  foreach(info, fidl_testdata_info) {
    if (info[denylist_key] + [ "fidlgen_hlcpp" ] - [ "fidlgen_hlcpp" ] ==
        info[denylist_key]) {
      deps += [ "${info.target}_hlcpp" ]
    }
  }
}

group("tests") {
  testonly = true
  deps = [
    ":fidlgen_hlcpp_golden_tests($host_toolchain)",
    ":goldens",
    ":goldens($host_toolchain)",
  ]
}