# Copyright 2019 The Chromium 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/python.gni")
import("//testing/test.gni")

# Structured metrics is subcomponent of UMA that gathers and reports structured
# events with several attached metrics.
static_library("structured") {
  sources = [
    "event_base.cc",
    "event_base.h",
    "histogram_util.cc",
    "histogram_util.h",
    "key_data.cc",
    "key_data.h",
    "recorder.cc",
    "recorder.h",
    "structured_metrics_provider.cc",
    "structured_metrics_provider.h",
  ]

  public_deps = [ "//third_party/metrics_proto" ]

  deps = [
    ":structured_events",
    "//base",
    "//components/metrics",
    "//components/prefs",
    "//crypto",
  ]
}

# TODO(crbug.com/1112471): Get this to run cleanly under Python 3.
python2_action("gen_structured_events") {
  script = "//tools/metrics/structured/gen_events.py"

  # Re-generate the outputs if the codegen code changes:
  inputs = [
    "//tools/metrics/structured/codegen.py",
    "//tools/metrics/structured/compile_time_validation.py",
    "//tools/metrics/structured/events_template.py",
    "//tools/metrics/structured/gen_events.py",
  ]
  sources = [ "//tools/metrics/structured/structured.xml" ]

  outdir = "$target_gen_dir"

  outputs = [
    outdir + "/structured_events.cc",
    outdir + "/structured_events.h",
  ]

  args = [
    "--input",
    rebase_path(sources[0], root_build_dir),
    "--output",
    rebase_path(outdir, root_build_dir),
  ]
}

static_library("structured_events") {
  sources = get_target_outputs(":gen_structured_events")

  deps = [
    ":gen_structured_events",
    "//base",
  ]
}

source_set("unit_tests") {
  testonly = true
  sources = [
    "key_data_unittest.cc",
    "structured_metrics_provider_unittest.cc",
  ]

  deps = [
    ":structured",
    ":structured_events",
    "//base",
    "//base/test:test_support",
    "//components/prefs",
    "//testing/gtest",
  ]
}

# Convenience testing target
test("structured_metrics_unittests") {
  deps = [
    ":unit_tests",
    "//base",
    "//base/test:test_support",
    "//components/test:run_all_unittests",
  ]
}