import 'package:supabase_flutter/supabase_flutter.dart';
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import 'package:mensaapp/providers/spezielleErnaehrungProvider.dart';
import 'package:mensaapp/providers/serviceProvider.dart';
import 'package:mensaapp/providers/ambienteProvider.dart';
import 'package:mensaapp/providers/anmerkungProvider.dart';
import 'package:mensaapp/providers/essenProvider.dart';
import '../providers/pageProvider.dart';
import '../providers/languageProvider.dart';
import 'package:mensaapp/providers/spaceProvider.dart';


class DatabaseService {
  final SupabaseClient supabase = Supabase.instance.client;

  void getAllRatings(BuildContext context) {
    var serviceProvider = Provider.of<ServiceProvider>(context, listen: false);
    var essenProvider = Provider.of<EssenProvider>(context, listen: false);
    var speziellerProvider = Provider.of<SpezielleErnaehrungProvider>(context, listen: false);
    var pageProvider = Provider.of<PageProvider>(context, listen: false);

    var essenData = {
      "q1": essenProvider.ratingQuali,
      "q2": essenProvider.ratingGeschmack,
      "t1": essenProvider.freiText,
      "food": pageProvider.selectedEssenName
    };

    var serviceData = {
      "q1": serviceProvider.ratingFrage1,
      "q2": serviceProvider.ratingFrage2,
      "t1": serviceProvider.freiText
    };

    var speziellerData = {
      "q1": speziellerProvider.frage1,
      "q2": speziellerProvider.frage2,
      "t1": speziellerProvider.freiText
    };

    var sendData = {
      "page1": {
        "q1": 0,
        "q2": 0,
        "t1": "",
        "food": ""
      },
      "page2": {
        "q1": 0,
        "q2": 0,
        "t1": ""
      },
      "page3": {
        "q1": 0,
        "q2": 0,
        "t1": ""
      }
    };


    var jsonArray = [serviceData, essenData, speziellerData];

    for (var element in jsonArray) {
      var exists = checkIfRatingExists(element);
      if (exists) {
        if (element == essenData) {
          sendData["page1"] = element;
        } else if (element == serviceData) {
          sendData["page2"] = element;
        } else if (element == speziellerData) {
          sendData["page3"] = element;
        }
      }
    }
    print(sendData);
    _showConfirmationDialog(context, sendData);

  }

  bool checkIfRatingExists(Map<String, dynamic> myJson) {
    return !myJson.values.any((value) => value == 0);
  }

  Future<void> sendDataToSupabase(Map<String, dynamic> data) async {
    try {
      final response = await supabase.from('ratings_database').insert({"ratings": data});
      print("Antwort von Supabase: $response");

      if (response == null) {
        throw Exception("Antwort von Supabase ist null");
      }

      if (response['error'] != null) {
        throw Exception("Supabase-Fehler: ${response['error']}");
      }

      print("Daten erfolgreich gesendet: ${response['data']}");
    } catch (error) { //vielleicht überarbeiten? Pop Up mit "Admin verständigen"
      print("Fehler beim Senden der Daten: $error");
    }
  }


  void _showConfirmationDialog(BuildContext context, data) {
    String formatData(Map<String, dynamic> pageData, String title) {
      String show_title = "";
      String show_question = "";
      switch (title){
        case "Essen":
          show_title = Provider.of<LanguageProvider>(context, listen: false)
              .languageData[
          Provider.of<LanguageProvider>(context, listen: false)
              .language]["navBar"]["0"];
          show_question = "pageEssen";
          break;
        case "Service":
          show_title = Provider.of<LanguageProvider>(context, listen: false)
              .languageData[
          Provider.of<LanguageProvider>(context, listen: false)
              .language]["navBar"]["1"];
          show_question = "pageService";
          break;
        case "Spezielle Nahrung":
          show_title = Provider.of<LanguageProvider>(context, listen: false)
              .languageData[
          Provider.of<LanguageProvider>(context, listen: false)
              .language]["navBar"]["2"];
          show_question = "pageSpecial";
          break;
      }
      if (pageData['q1'] != 0 && pageData['q2'] != 0) {
        String foodLine = pageData.containsKey('food') ? "- ${pageData['food']}\n" : "";

        return "$show_title:\n"
            "$foodLine"
            "- ${Provider.of<LanguageProvider>(context, listen: false).languageData[Provider.of<LanguageProvider>(context, listen: false).language][show_question]["question1"]}: ${pageData['q1'].toInt()}/5 Sterne\n"
            "- ${Provider.of<LanguageProvider>(context, listen: false).languageData[Provider.of<LanguageProvider>(context, listen: false).language][show_question]["question2"]}: ${pageData['q2'].toInt()}/5 Sterne\n"
            "- ${Provider.of<LanguageProvider>(context, listen: false).languageData[Provider.of<LanguageProvider>(context, listen: false).language]["textfield"]}: ${pageData['t1']}\n\n";
      }
      return "$show_title: ${Provider.of<LanguageProvider>(context, listen: false)
          .languageData[
      Provider.of<LanguageProvider>(context, listen: false)
          .language]["send"]["notRated"]}\n\n";
    }

    bool allUnrated = data.values.every((pageData) => pageData['q1'] == 0 && pageData['q2'] == 0 && (pageData['t1'] ?? "").isEmpty);

    String dialogContent =
        formatData(data["page1"], "Essen") +
        formatData(data["page2"], "Service") +
        formatData(data["page3"], "Spezielle Nahrung");


    showDialog(
      context: context,
      builder: (BuildContext dialogContext) {
        return AlertDialog(
          title: Text(Provider.of<LanguageProvider>(context, listen: false)
              .languageData[
          Provider.of<LanguageProvider>(context, listen: false)
              .language]["send"]["title"]),
          content: SizedBox(
            width: MediaQuery.of(context).size.width * 0.6,
            height: MediaQuery.of(context).size.height * 0.3,
            child: SingleChildScrollView(
              child: Text(
                dialogContent,
                style: TextStyle(fontSize: 18),
              ),
            ),
          ),
          actions: [
            ElevatedButton(
              onPressed: () {
                Navigator.of(dialogContext).pop(); // Abbrechen
              },
              style: ElevatedButton.styleFrom(
                  backgroundColor: Theme.of(context).colorScheme.secondary),
              child: Text(Provider.of<LanguageProvider>(context, listen: false)
                  .languageData[
              Provider.of<LanguageProvider>(context, listen: false)
                  .language]["send"]["change"]),
            ),
            ElevatedButton(
              onPressed: allUnrated
                  ? null // Button deaktivieren
                  : () async {
                Navigator.of(dialogContext).pop(); // Dialog schließen
                await sendDataToSupabase(data);
                Provider.of<EssenProvider>(context, listen: false).resetAllFields();
                Provider.of<ServiceProvider>(context, listen: false).resetAllFields();
                Provider.of<SpezielleErnaehrungProvider>(context, listen: false).resetAllFields();
                Provider.of<PageProvider>(context, listen: false).resetSelectedEssen();
                Provider.of<SpaceProvider>(context, listen: false).setSelectedSpace(0);
                Provider.of<LanguageProvider>(context, listen: false).setLanguage("de");
                Provider.of<PageProvider>(context, listen: false).changePage(0);
              },
              style: ElevatedButton.styleFrom(
                backgroundColor: allUnrated
                    ? Colors.grey // Button farblich anzeigen, wenn deaktiviert
                    : Theme.of(context).primaryColor,
              ),
              child: Text(Provider.of<LanguageProvider>(context, listen: false)
                  .languageData[
              Provider.of<LanguageProvider>(context, listen: false)
                  .language]["send"]["apply"],
                  style: TextStyle(
                      decoration: allUnrated ? TextDecoration.lineThrough : null,
                      color: allUnrated ? Colors.black54 : Theme.of(context).colorScheme.secondary)
              ),
            ),
          ],
        );
      },
    );
  }
}