// ignore_for_file: avoid_init_to_null

import 'dart:async';
import 'dart:io';

import 'package:dart_framework/data/isolate_data.dart';
import 'package:dart_framework/platform/isolate_manager.dart';
import 'package:oto_cli/cli/cli.dart';
import 'package:oto_cli/cli/commands/command_base.dart';
import 'package:dart_framework/utils/system_util.dart';
import 'package:oto_cli/oto/application.dart';
import 'package:oto_cli/oto/data/command_data.dart';

class CommandExe extends CommandBase {
  late IsolateHandler _handler;
  bool _complete = false;
  bool _ready = false;

  @override
  Map<String, List<String>> get arguments => {
        '-j': ["Used when it's a Jenkins build."],
        '-t': ["This is the setup for testing."],
        '-f {file path}': ["Run the yaml file to process."]
      };
  @override
  String get name => 'exe';

  @override
  Future execute(List<String> parameters) async {
    for (var i = 0; i < parameters.length; ++i) {
      var item = parameters[i];
      if (item.startsWith('-j')) {
        _handler = IsolateManager.create(IsolateExe(BuildType.jenkins));
        await isComplete();
        break;
      } else if (item.startsWith('-t')) {
        _handler = IsolateManager.create(IsolateExe(BuildType.test));
        await isComplete();
        break;
      } else if (item.startsWith('-f')) {
        var file = '';
        if (parameters.length > i + 1) {
          file = parameters[i + 1];
        } else {
          file = item.replaceFirst('-f', '').trimLeft();
        }
        await startYaml(file);
        break;
      } else {
        printHelp();
      }
    }
    return simpleFuture;
  }

  Future executeScheduler(
      DataBuild build, bool logEnable, String logPath) async {
    _handler =
        IsolateManager.create(IsolateExe.scheduler(build, logEnable, logPath));
    await isComplete();
    _handler.exit();
    return simpleFuture;
  }

  Future isComplete() async {
    _ready = false;
    _complete = false;
    _handler.addEventListener(IsolateEvent.ready, (data) => _ready = true);
    _handler.addListener('complete', (data) => _complete = true);
    while (!(_complete && _ready)) {
      await Future.delayed(const Duration(milliseconds: 200));
    }
    return simpleFuture;
  }

  Future startYaml(String target) async {
    var file = File(target);
    if (file.existsSync()) {
      _handler = IsolateManager.create(IsolateExe(BuildType.file,
          yamlContent: file.readAsStringSync(
              /*encoding: Platform.isWindows ? eucKr : systemEncoding*/)));
      await isComplete();
    } else {
      await CLI.print([
        CLI.style('There are no files in path "$target"', color: Color.red)
      ]);
    }
    return simpleFuture;
  }

  @override
  String getDescription() {
    return ':::: Read documents written in yaml to do process task.';
  }
}

class IsolateExe extends IsolateBase {
  late BuildType _buildType;
  bool _logEnable = true;
  DataBuild? _build = null;
  String? _yamleContent = null;
  String? _logPath = null;

  IsolateExe(this._buildType,
      {String? yamlContent,
      DataBuild? build,
      bool logEnable = true,
      String? logPath}) {
    _yamleContent = yamlContent;
    _build = build;
    _logEnable = logEnable;
    _logPath = logPath;
  }

  factory IsolateExe.scheduler(
      DataBuild build, bool logEnable, String logPath) {
    return IsolateExe(BuildType.scheduler,
        build: build, logEnable: logEnable, logPath: logPath);
  }

  @override
  void onReady(Object? initData) async {
    await Application.instance.build(_buildType,
        yamlContent: _yamleContent,
        buildData: _build,
        logEnable: _logEnable,
        logPath: _logPath);
    send(IsoMessege('complete'));
  }
}