// gets all quotes from the database and returns them in a list

import 'package:flutter/material.dart';

import 'package:frontend/model/quote.dart';
import 'package:frontend/repository/quote_repository.dart';

class QuoteProvider extends ChangeNotifier {
  List<Quote> _quotes = [];
  bool _loading = false;
  String? _error;

  List<Quote> get quotes => _quotes;
  bool get loading => _loading;
  String? get error => _error;

  final QuoteRepository repo = QuoteRepository();

  QuoteProvider() {
    readQuotes(); // auto-load on creation
  }

  Future<void> readQuotes() async {
    _loading = true;
    _error = null;
    notifyListeners();

    try {
      _quotes = await repo.readQuotes();
    } catch (e) {
      _error = e.toString();
    }

    _loading = false;
    notifyListeners();
  }

  Future<void> createQuote(Quote quote) async {
    final newQuote = await repo.createQuote(quote);
    _quotes.add(newQuote);
    notifyListeners();
  }

  Future<void> updateQuote(Quote quote) async {
    try {
      _loading = true;
      notifyListeners();

      final updated = await repo.updateQuote(quote);

      final index = _quotes.indexWhere((q) => q.id == quote.id);
      if (index != -1) {
        final newList = List<Quote>.from(_quotes);
        newList[index] = updated;
        _quotes = newList;
      }
    } finally {
      _loading = false;
      notifyListeners();
    }
  }

  Future<void> deleteQuote(Quote quote) async {
    await repo.deleteQuote(quote);

    _quotes.removeWhere((q) => q.id == quote.id);
    notifyListeners();
  }
}