import 'package:decpisos/index/index_controller.dart';
import 'package:decpisos/videos/api/youtube_api.dart';
import 'package:decpisos/videos/api/youtube_classes.dart';
import 'package:get/get.dart';
import 'package:intl/intl.dart' show DateFormat;

class YouTubeController extends GetxController {
  YouTubeApi _api = new YouTubeApi();
  final IndexController _ic = Get.find();
  var results = new YouTubeSearchResponse(
    errorCode: 0,
    errorMessage: '',
    items: [],
  ).obs;
  var itens = <YouTubeItems>[].obs;
  bool atualizar = false;
  var errorCode = 0.obs;
  String? errorMessage = '';
  var loading = true.obs;  
  final f = DateFormat('dd/MM/yyyy HH:mm:ss');

  @override
  void onInit() {
    super.onInit();
	  
      // _controller = AnimationController(
      //   duration: const Duration(milliseconds: 650),
      //   vsync: this,
      // )..forward();
      // animation = Tween<Offset>(
      //   begin: const Offset(-0.5, 0.0),
      //   end: const Offset(0.0, 0.0),
      // ).animate(CurvedAnimation(
      //   parent: _controller,
      //   curve: Curves.easeInCubic,
      // ));  
    this.atualizar = true;
    this.itens = new RxList<YouTubeItems>();
    this.getChannelVideosBloc();
  }  

  Future<void> getChannelVideosBloc({String textoBusca = '-'}) async {
    //this.loading.value = true;
    if (results.value.errorCode == null || atualizar || results.value.errorCode != 0) {
      results.value = new YouTubeSearchResponse();
      this.itens = new RxList<YouTubeItems>();
      results.value = await this._api.getChannelVideos();
      results.value.items = results.value.items!.where((element) => GetUtils.isNullOrBlank(element.id!.videoId) == false).toList();
      this.itens.addAll(results.value.items!);
      this.errorCode.value =  results.value.errorCode!;
      this.errorMessage =  results.value.errorMessage;
      this.atualizar = false;
    } else if (results.value.nextPageToken != null && results.value.nextPageToken!.isNotEmpty) {
      var more = await this._api.getChannelVideos(nextPageToken: results.value.nextPageToken);
      more.items = more.items!.where((element) => GetUtils.isNullOrBlank(element.id!.videoId) == false).toList();      
      this.errorCode.value =  more.errorCode!;
      this.errorMessage =  more.errorMessage;
      this.itens.addAll(more.items!);      
      results.value.nextPageToken = more.nextPageToken ?? '';
      results.value.items!.addAll(more.items!);
    }
    if(this.errorCode.value == -5){
      this._ic.tabsWithoutVideos();
    }
    this.loading.value = false;
  }

  Future<void> refresh() async {
    this.loading.value = true;
    this.atualizar = true;
    results.value = YouTubeSearchResponse(
      errorCode: 0,
      errorMessage: '',
      items: [],
    );
    this.getChannelVideosBloc();
  }

  String getDateFormatada(String dt){
    String r = '';
    try {
      r = this.f.format(DateTime.parse(dt));
    } catch (e) {
    }
    return r;
  }  
}