// Copyright (c) 2020, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

import 'dart:convert';
import 'dart:io' as io;

import 'package:dartdev/dartdev.dart';
import 'package:http/http.dart' as http;
import 'package:path/path.dart' as path;
// Needed to reset the global HTTP client after a test.
import 'package:pub/src/http.dart' show innerHttpClient;
import 'package:test/test.dart';
import 'package:unified_analytics/unified_analytics.dart';

import 'experiment_util.dart';
import 'utils.dart';

List<Map> extractAnalytics(io.ProcessResult result) {
  return LineSplitter.split(result.stderr)
      .where((line) => line.startsWith('[analytics]: '))
      .map((line) => json.decode(line.substring('[analytics]: '.length)) as Map)
      .toList();
}

void main() {
  final experiments = experimentsWithValidation();

  group('VM -> CLI flag smoke test:', () {
    late DartdevRunner command;
    setUp(() {
      command = DartdevRunner([], isAnalyticsTest: true);
    });

    test('--no-analytics', () async {
      final result =
          await command.runCommand(command.parse(['--no-analytics']));
      expect(result, 0);
      expect(command.unifiedAnalytics.telemetryEnabled, false);
    });

    test('--suppress-analytics', () async {
      final result =
          await command.runCommand(command.parse(['--suppress-analytics']));
      expect(result, 0);
      expect(command.unifiedAnalytics.telemetryEnabled, false);
    });

    test('--suppress-analytics and --disable-analytics', () async {
      final result = await command.runCommand(
        command.parse(
          [
            '--suppress-analytics',
            '--disable-analytics',
          ],
        ),
      );
      // --suppress-analytics and --disable-analytics can't be provided
      // together to ensure analytics state properly sticks.
      expect(result, 254);
    });

    test('--suppress-analytics and --enable-analytics', () async {
      final result = await command.runCommand(
        command.parse(
          [
            '--suppress-analytics',
            '--enable-analytics',
          ],
        ),
      );
      // --suppress-analytics and --enable-analytics can't be provided
      // together to ensure analytics state properly sticks.
      expect(result, 254);
    });
  });

  group('Sending analytics', () {
    test('help', () async {
      final p = project();
      final analytics = await p.runLocalWithFakeAnalytics(['help']);
      expect(analytics.sentEvents, [
        Event.dartCliCommandExecuted(
          name: 'help',
          enabledExperiments: '',
        )
      ]);
    });

    test('create', () async {
      final p = project();
      final analytics = await p.runLocalWithFakeAnalytics([
        'create',
        '--no-pub',
        '-tpackage-simple',
        path.join(io.Directory.systemTemp.createTempSync().path, 'name'),
      ]);
      expect(analytics.sentEvents, [
        Event.dartCliCommandExecuted(
          name: 'create',
          enabledExperiments: '',
        ),
      ]);
    });

    group('pub', () {
      setUp(() {
        // Inside each pub test reset the pub http client.
        innerHttpClient = http.Client();
      });

      test(
        'get',
        () async {
          final p = project(
            pubspecExtras: {
              'dependencies': {'lints': '2.0.1'}
            },
          );
          final analytics = await p.runLocalWithFakeAnalytics(['pub', 'get']);

          // Pub no longer sends custom analytics,
          // so only the command should be sent.
          expect(analytics.sentEvents, [
            Event.dartCliCommandExecuted(
              name: 'pub/get',
              enabledExperiments: '',
            ),
          ]);
        },
        // This test does a pub get, so it might run slow. Consider adding
        // retries if necessary.
        timeout: Timeout.factor(5),
      );
    });

    test('format', () async {
      final p = project();
      final analytics =
          await p.runLocalWithFakeAnalytics(['format', '-l80', '.']);
      expect(analytics.sentEvents, [
        Event.dartCliCommandExecuted(
          name: 'format',
          enabledExperiments: '',
        ),
      ]);
    });

    test('run', () async {
      final p = project(mainSrc: 'void main(List<String> args) => print(args)');
      final analytics = await p.runLocalWithFakeAnalytics([
        'run',
        '--no-pause-isolates-on-exit',
        '--enable-asserts',
        'lib/main.dart',
        '--argument'
      ]);
      expect(analytics.sentEvents, [
        Event.dartCliCommandExecuted(
          name: 'run',
          enabledExperiments: '',
        ),
      ]);
    });

    group('run --enable-experiments', () {
      for (final experiment in experiments) {
        test(experiment.name, () async {
          final p = project(mainSrc: experiment.validation);
          {
            for (final no in ['', 'no-']) {
              final analytics = await p.runLocalWithFakeAnalytics([
                'run',
                '--enable-experiment=$no${experiment.name}',
                'lib/main.dart',
              ]);
              expect(analytics.sentEvents, [
                Event.dartCliCommandExecuted(
                  name: 'run',
                  enabledExperiments: '$no${experiment.name}',
                ),
              ]);
            }
          }
        });
      }
    });

    test('compile', () async {
      final p = project(
        mainSrc: 'void main(List<String> args) => print(args);',
      );
      final analytics = await p.runLocalWithFakeAnalytics([
        'compile',
        'kernel',
        'lib/main.dart',
        '-o',
        'main.kernel',
      ]);
      expect(analytics.sentEvents, [
        Event.dartCliCommandExecuted(
          name: 'compile/kernel',
          enabledExperiments: '',
        ),
      ]);
    });
  });
}