# 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/go/go_binary.gni")
import("//build/go/go_library.gni")
import("//build/go/go_test.gni")
import("//build/testing/golden_file.gni")
import("//third_party/protobuf/proto_library.gni")

go_library("virtual_device") {
  sources = [
    "common.go",
    "common_test.go",
    "qemu.go",
    "qemu_test.go",
  ]
  deps = [
    ":proto",
    "//third_party/golibs:github.com/google/go-cmp",
    "//tools/build",
    "//tools/qemu",
  ]
}

go_test("virtual_device_test") {
  output_name = "virtual_device_test"
  gopackages = [ "go.fuchsia.dev/fuchsia/tools/virtual_device" ]
  deps = [ ":virtual_device" ]
}

go_library("fvd_lib") {
  source_dir = "cmd/fvd"
  sources = [ "main.go" ]
  deps = [
    ":proto",
    ":virtual_device",
    "//third_party/golibs:github.com/golang/protobuf",
    "//tools/build",
  ]
}

group("tests") {
  testonly = true
  deps = [
    ":pb_go_diff",
    ":virtual_device_test",
  ]
}

go_binary("fvd") {
  gopackage = "go.fuchsia.dev/fuchsia/tools/virtual_device/cmd/fvd"
  deps = [ ":fvd_lib" ]
}

# Generates $root_build_dir/default.fvd.
action("default") {
  script = "$host_out_dir/fvd"
  outputs = [ "$root_build_dir/default.fvd" ]
  args = [
    # images.json is built before this target even though it is not a dep.
    "--images_json",
    rebase_path("$root_build_dir/images.json", root_build_dir),
    "--output",
    rebase_path(outputs[0], root_build_dir),
    "--buildinfo_cpu",
    target_cpu,
  ]
  deps = [ ":fvd($host_toolchain)" ]
}

proto_library("proto_lib") {
  sources = [ "proto/virtual_device.proto" ]
  generate_cc = false
  generate_go = true
  generate_python = false
}

go_library("proto") {
  name = "go.fuchsia.dev/fuchsia/tools/virtual_device/proto"
  source_dir = "$root_gen_dir/go-proto-gen/src/tools/virtual_device/proto"
  sources = [ "virtual_device.pb.go" ]
  deps = [ "//third_party/golibs:github.com/golang/protobuf" ]
  non_go_deps = [ ":proto_lib" ]
}

# We keep a checked-in copy of the generated .pb.go file so that regular Go
# toolchain commands work with this code. So make sure the generated file stays
# up to date with the source-of-truth .proto file.
golden_file("pb_go_diff") {
  current = "$root_gen_dir/go-proto-gen/src/tools/virtual_device/proto/virtual_device.pb.go"
  golden = "proto/virtual_device.pb.go"
  deps = [ ":proto_lib_gen" ]
  warn_on_changes = false
}