import 'package:flutter/material.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:fluttertoast/fluttertoast.dart';
import 'package:intl/intl.dart';
import 'package:medcify/models/timing_item.dart';

import '../../../components/alert.dart';
import '../../../navigation/navigation.dart';
import '../../../network/api_provider.dart';

abstract class ChangeTimingState{}

class ChangeTimingInitial extends ChangeTimingState{}
class ChangeTimingLoading extends ChangeTimingState{}
class ChangeTimingSuccess extends ChangeTimingState{}
class ChangeTimingFailure extends ChangeTimingState{
  String error;
  ChangeTimingFailure(this.error);
}

class ChangeTimingCubit extends Cubit<ChangeTimingState> {
  ChangeTimingCubit() : super(ChangeTimingInitial());
  List<TimingItem> timings = [];

  Future<void> fetchTimings() async{
    emit(ChangeTimingLoading());
    final response = await ApiProvider.instance.fetchTimings();
    if(response.status ?? false){
      timings = response.timings ?? [];
      emit(ChangeTimingSuccess());
    }else{
      emit(ChangeTimingFailure(response.message ?? "Something went wrong"));
    }
  }

  void onOpeningTimeChanged(DateTime? val,int pos){
    if(val != null){
      timings[pos].openingTime = DateFormat().add_jms().format(val);
      emit(ChangeTimingSuccess());
    }
  }

  void onClosingTimeChanged(DateTime? val,int pos){
    if(val != null){
      timings[pos].closingTime = DateFormat().add_jms().format(val);
      emit(ChangeTimingSuccess());
    }
  }

  Future<void> updateTiming() async{
    Navigation.instance.navigate("/loading");
    final response = await ApiProvider.instance.updateTimings(timings);
    Navigation.instance.goBack();
    if(response.status ?? false){
      showToast("Timings updated successfully");
      fetchTimings();
    }else{
      showAlert(response.message ?? "Something went wrong");
    }
  }

  void showToast(String msg) {
    Fluttertoast.showToast(
        msg: msg,
        toastLength: Toast.LENGTH_SHORT,
        gravity: ToastGravity.BOTTOM,
        timeInSecForIosWeb: 1,
        backgroundColor: Colors.grey.shade200,
        textColor: Colors.black,
        fontSize: 14.0
    );
  }

  void showAlert(String err){
    AlertX.instance.showAlert(
        title: "Error",
        msg: err,
        positiveButtonText: "Done",
        positiveButtonPressed: (){
          Navigation.instance.goBack();
        }
    );
  }


}