firebase.dart

import 'package:cloud_firestore/cloud_firestore.dart';
import 'package:firebase_auth/firebase_auth.dart';
import 'package:flutter/cupertino.dart';

class changeFirebase{

  final String id = (FirebaseAuth.instance.currentUser?.uid.toString())!+'_genres';


  Future<void> updateColorGenre(String colorText, String genre) async {
    await FirebaseFirestore.instance.collection('classification')
        .doc(id)
        .update({colorText: genre});
  }

  String checkForNull(var document){
    if(document == null){
      return 'Not Selected';
    }
    else{
      return document.toString();
    }
  }

  bool checkIfEverythingSelected(AsyncSnapshot snapshot){
    if (snapshot.data['Red'] == null){ return false;}
    if (snapshot.data['Orange'] == null){ return false;}
    if (snapshot.data['Yellow'] == null){ return false;}
    if (snapshot.data['Green'] == null){ return false;}
    if (snapshot.data['White'] == null){ return false;}
    if (snapshot.data['Blue'] == null){ return false;}
    if (snapshot.data['Pink'] == null){ return false;}
    if (snapshot.data['Purple'] == null){ return false;}
    if (snapshot.data['Brown'] == null){ return false;}
    if (snapshot.data['Black'] == null){ return false;}
    return true;
  }

  Future<String> getGenreByHex(String code) async {
    switch (code){
      case 'FF0000':
       return await getGenreByColor('Red');
      case 'FFA500':
        return await getGenreByColor('Orange');
      case 'FFFF00':
        return getGenreByColor('Yellow');
      case '00FF00':
        return getGenreByColor('Green');
      case 'FFFFFF':
        return getGenreByColor('White');
      case '0000FF':
        return getGenreByColor('Blue');
      case 'FF46FD':
        return getGenreByColor('Pink');
      case '7F45D8':
        return getGenreByColor('Purple');
      case '67402D':
        return getGenreByColor('Brown');
      case '000000':
        return getGenreByColor('Black');
    }
    return 'nothing';
  }


  Future<String> getGenreByColor(String color) async {
    String genre = '';
    await FirebaseFirestore.instance.collection('classification').doc(id).get().then((snapshot) async {
      genre = await snapshot.data()![color];
      return genre;