import 'dart:typed_data';

import 'package:cloud_firestore/cloud_firestore.dart';
import 'package:firebase_storage/firebase_storage.dart';
import 'package:flutter/material.dart';
import 'package:prosapp_web_app/models/location_preferences.dart';
import 'package:prosapp_web_app/models/payment_method_entity.dart';
import 'package:prosapp_web_app/models/profesional.dart';
import 'package:prosapp_web_app/models/schedules.dart';
import 'package:prosapp_web_app/services/notifications_service.dart';

class ProfessionalFormProvider with ChangeNotifier {
  Profesional? profesional;
  GlobalKey<FormState> formKey = GlobalKey<FormState>();
  GlobalKey<FormState> profileFormKey = GlobalKey<FormState>();

  copyProfesionalWith({
    String? id,
    String? identification,
    String? address,
    String? aditionalAddress,
    String? profession,
    bool ratePreferences = false,
    String? rate,
    LocationPreferences? locationPreferences,
    String? bannerPicture,
    String? identificationPicture,
    String? certificatePicture,
    double? latitude,
    double? longitude,
    List<String>? specializations,
    List<String>? specializationsPictures,
    Schedules? schedules,
    PaymentMethodEntity? paymentMethods,
  }) {
    profesional = Profesional(
      id: id ?? profesional!.id,
      identification: identification ?? profesional!.identification,
      address: address ?? profesional!.address,
      aditionalAddress: aditionalAddress ?? profesional!.aditionalAddress,
      profession: profession ?? profesional!.profession,
      ratePreferences: ratePreferences,
      rate: rate ?? profesional!.rate,
      locationPreferences:
          locationPreferences ?? profesional!.locationPreferences,
      bannerPicture: bannerPicture ?? profesional!.bannerPicture,
      identificationPicture:
          identificationPicture ?? profesional!.identificationPicture,
      certificatePicture: certificatePicture ?? profesional!.certificatePicture,
      latitude: latitude ?? profesional!.latitude,
      longitude: longitude ?? profesional!.longitude,
      specializations: specializations ?? profesional!.specializations,
      specializationsPictures:
          specializationsPictures ?? profesional!.specializationsPictures,
      schedules: schedules ?? profesional!.schedules,
      paymentMethods: paymentMethods ?? profesional!.paymentMethods,
    );

    notifyListeners();
  }

  bool _validForm() {
    return formKey.currentState!.validate();
  }

  bool _validProfileForm() {
    return profileFormKey.currentState!.validate();
  }

  setProfesional(Profesional profesional) {
    this.profesional = profesional;
    notifyListeners();
  }

  Future<bool> updateProfesionalInfo(String userId) async {
    if (!_validForm()) return false;

    final docProfessional = FirebaseFirestore.instance
        .collection('professional_info')
        .doc(userId)
        .withConverter(
          fromFirestore: (snapshot, _) =>
              Profesional.fromDocument(snapshot.data()!),
          toFirestore: (user, _) => user.toDocument(),
        );

    await docProfessional.set(profesional!);

    NotificationsService.showSnackbar('Información actualizada');

    return true;
  }

  Future<bool> updateProfesionalProfileInfo(String userId) async {
    if (!_validProfileForm()) return false;

    final docProfessional = FirebaseFirestore.instance
        .collection('professional_info')
        .doc(userId)
        .withConverter(
          fromFirestore: (snapshot, _) =>
              Profesional.fromDocument(snapshot.data()!),
          toFirestore: (user, _) => user.toDocument(),
        );

    await docProfessional.set(profesional!);

    NotificationsService.showSnackbar('Información actualizada');

    return true;
  }

  Future<bool> updateProfesionalProfileScheduleInfo(String userId) async {
    final docProfessional = FirebaseFirestore.instance
        .collection('professional_info')
        .doc(userId)
        .withConverter(
          fromFirestore: (snapshot, _) =>
              Profesional.fromDocument(snapshot.data()!),
          toFirestore: (user, _) => user.toDocument(),
        );

    await docProfessional.set(profesional!);

    NotificationsService.showSnackbar('Información actualizada');

    return true;
  }

  Future<Profesional> uploadPdfIdentification(
      Uint8List fileBytes, String userId) async {
    try {
      final storageRef = FirebaseStorage.instance
          .ref()
          .child('$userId/PDF/${userId}_cedula.pdf');

      await storageRef.putData(fileBytes);
      final url = await storageRef.getDownloadURL();

      copyProfesionalWith(identificationPicture: url);

      notifyListeners();

      return profesional!;
    } catch (e) {
      print("Error al subir el PDF de identificación: $e");
      NotificationsService.showSnackbar('Error al subir el PDF');
      rethrow;
    }
  }

  Future<Profesional> uploadPdfCertificate(
      Uint8List fileBytes, String userId) async {
    try {
      final storageRef = FirebaseStorage.instance
          .ref()
          .child('$userId/PDF/${userId}_certificado.pdf');

      await storageRef.putData(fileBytes);
      final url = await storageRef.getDownloadURL();

      copyProfesionalWith(certificatePicture: url);

      notifyListeners();

      return profesional!;
    } catch (e) {
      print("Error al subir el PDF de identificación: $e");
      NotificationsService.showSnackbar('Error al subir el PDF');
      rethrow;
    }
  }

  Future<Profesional> uploadPdfSpecializations(
      List<Uint8List> filesBytes, String userId) async {
    try {
      List<String> urls = [];

      for (int i = 0; i < filesBytes.length; i++) {
        final storageRef = FirebaseStorage.instance.ref().child(
            '$userId/PDF/${userId}_${DateTime.now().millisecondsSinceEpoch}_especializacion_$i.pdf');

        await storageRef.putData(filesBytes[i]);

        final url = await storageRef.getDownloadURL();
        urls.add(url);
      }

      copyProfesionalWith(specializationsPictures: urls);

      notifyListeners();

      return profesional!;
    } catch (e) {
      print("Error al subir los PDFs de especialización: $e");
      NotificationsService.showSnackbar('Error al subir los PDFs');
      rethrow;
    }
  }
}