import 'package:cloud_firestore/cloud_firestore.dart';
import 'package:firebase_auth/firebase_auth.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:flutter_rating_bar/flutter_rating_bar.dart';
import 'package:prosappco/blocs/score_bloc/score_bloc.dart';
import 'package:score_repository/score_repository.dart';
import 'package:service_repository/service_repository.dart';
import 'package:user_repository/user_repository.dart';

class ScoreScreen extends StatefulWidget {
  final ServiceEntity service;

  const ScoreScreen({Key? key, required this.service}) : super(key: key);

  @override
  State<ScoreScreen> createState() => _ScoreScreenState();
}

class _ScoreScreenState extends State<ScoreScreen> {
  double _rating = 1.0;
  TextEditingController commentController = TextEditingController();
  late Future<List<dynamic>> _userInfoFuture;

  @override
  void initState() {
    super.initState();
    _userInfoFuture = _getUserAndProfessionalInfo(widget.service);
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Calificación'),
      ),
      body: Column(
        children: [
          Expanded(
            child: SingleChildScrollView(
              child: Column(
                children: [
                  FutureBuilder(
                    future: _userInfoFuture,
                    builder: (context, AsyncSnapshot<List<dynamic>> snapshot) {
                      if (snapshot.connectionState == ConnectionState.waiting) {
                        return const Center(child: CircularProgressIndicator());
                      } else {
                        if (snapshot.hasError) {
                          return Center(
                            child: Text('Error inesperado: ${snapshot.error}'),
                          );
                        } else {
                          final userInfo = snapshot.data![0] as MyUser;

                          return Padding(
                            padding: const EdgeInsets.symmetric(horizontal: 15),
                            child: ListTile(
                              leading: Container(
                                width: 60,
                                height: 60,
                                decoration: BoxDecoration(
                                  color: Colors.grey.shade300,
                                  shape: BoxShape.circle,
                                  image: userInfo.picture == null
                                      ? null
                                      : DecorationImage(
                                          image: NetworkImage(
                                              userInfo.picture ?? ''),
                                          fit: BoxFit.contain,
                                        ),
                                ),
                                child: userInfo.picture == null
                                    ? Icon(
                                        CupertinoIcons.person,
                                        color: Colors.grey.shade400,
                                        size: 40,
                                      )
                                    : null,
                              ),
                              title: Text(
                                userInfo.name ?? '',
                                overflow: TextOverflow.ellipsis,
                                style: const TextStyle(
                                  fontSize: 15,
                                  fontWeight: FontWeight.w600,
                                ),
                              ),
                              subtitle: const Text(
                                'Rating: 5.0',
                                style: TextStyle(
                                  fontSize: 13,
                                  color: Colors.blue,
                                ),
                              ),
                            ),
                          );
                        }
                      }
                    },
                  ),
                  const SizedBox(height: 10),
                  const Text(
                    'Calificación',
                    style: TextStyle(fontSize: 20, fontWeight: FontWeight.w600),
                  ),
                  const SizedBox(height: 10),
                  RatingBar.builder(
                    initialRating: _rating,
                    minRating: 1,
                    direction: Axis.horizontal,
                    allowHalfRating: true,
                    itemCount: 5,
                    itemSize: 40,
                    glow: false,
                    maxRating: 5,
                    itemPadding: const EdgeInsets.symmetric(horizontal: 5),
                    itemBuilder: (context, _) => const Icon(
                      Icons.star,
                      color: Color(0xFF2BA4EC),
                    ),
                    onRatingUpdate: (rating) {
                      setState(() {
                        _rating = rating;
                      });
                    },
                    ignoreGestures: false,
                  ),
                  Padding(
                    padding: const EdgeInsets.symmetric(
                        horizontal: 40, vertical: 40),
                    child: Column(
                      crossAxisAlignment: CrossAxisAlignment.start,
                      children: [
                        const Text(
                          'Comentario',
                          style: TextStyle(
                              fontSize: 20, fontWeight: FontWeight.w600),
                        ),
                        TextFormField(
                          maxLines: null,
                          maxLength: 400,
                          keyboardType: TextInputType.multiline,
                          controller: commentController,
                        ),
                      ],
                    ),
                  ),
                ],
              ),
            ),
          ),
          const Divider(
            height: 1,
            thickness: 0.5,
          ),
          Padding(
            padding: const EdgeInsets.symmetric(
              vertical: 10,
              horizontal: 15,
            ),
            child: FilledButton(
              onPressed: () {
                final CommentEntity comment = widget.service.userId ==
                        FirebaseAuth.instance.currentUser!.uid
                    ? CommentEntity(
                        serviceId: widget.service.id!,
                        authorId: FirebaseAuth.instance.currentUser!.uid,
                        isFromUser: true,
                        score: _rating,
                        destinationId: widget.service.professionalId,
                        content: commentController.text,
                        createdAt: Timestamp.now(),
                      )
                    : CommentEntity(
                        serviceId: widget.service.id!,
                        authorId: FirebaseAuth.instance.currentUser!.uid,
                        isFromUser: false,
                        score: _rating,
                        destinationId: widget.service.userId,
                        content: commentController.text,
                        createdAt: Timestamp.now(),
                      );

                BlocProvider.of<ScoreBloc>(context)
                    .add(SendScoreEvent(comment: comment));
              },
              style: FilledButton.styleFrom(
                backgroundColor: Theme.of(context).colorScheme.primary,
                padding: const EdgeInsets.symmetric(vertical: 15),
                shape: RoundedRectangleBorder(
                  borderRadius: BorderRadius.circular(10),
                ),
              ),
              child: Container(
                alignment: Alignment.center,
                width: double.infinity,
                child: const Text(
                  'Enviar calificación',
                  style: TextStyle(
                    color: Colors.white,
                    fontSize: 18,
                  ),
                ),
              ),
            ),
          ),
        ],
      ),
    );
  }

  Future<List<dynamic>> _getUserAndProfessionalInfo(
      ServiceEntity service) async {
    final userRepo = FirebaseUserRepository(FirebaseAuth.instance);

    final MyUser? userInfo;

    if (FirebaseAuth.instance.currentUser!.uid == service.userId) {
      userInfo = await userRepo.getMyUser(service.userId);
    } else {
      userInfo = await userRepo.getMyUser(service.professionalId);
    }

    return [userInfo];
  }
}