import 'package:flutter/material.dart';
import 'package:intl/intl.dart';
import 'package:insparkspokalen_ui/models/informationModel.dart';
import 'package:insparkspokalen_ui/services/informationService.dart';

class AdminInformationPage extends StatefulWidget {
  const AdminInformationPage({Key? key}) : super(key: key);

  @override
  State<AdminInformationPage> createState() => _AdminInformationPageState();
}

class _AdminInformationPageState extends State<AdminInformationPage> {
  List<InformationModel> informationList = [];

  @override
  void initState() {
    super.initState();
    _fetchInformation();
  }

  void _fetchInformation() async {
    try {
      List<InformationModel> fetchedInfo = await InformationService().fetchInformation();
      setState(() {
        informationList = fetchedInfo;
      });
    } catch (e) {
      print("Fel vid hämtning: $e");
    }
  }

  void _showAddDialog() {
    final titleController = TextEditingController();
    final contentController = TextEditingController();

    showDialog(
      context: context,
      builder: (context) => AlertDialog(
        title: const Text("Lägg till informationsmeddelande"),
        content: Column(
          mainAxisSize: MainAxisSize.min,
          children: [
            TextField(controller: titleController, decoration: const InputDecoration(labelText: "Titel")),
            TextField(controller: contentController, decoration: const InputDecoration(labelText: "Innehåll")),
          ],
        ),
        actions: [
          TextButton(
            onPressed: () => Navigator.pop(context),
            child: const Text("Avbryt"),
          ),
          ElevatedButton(
            onPressed: () async {
              final info = InformationModel(
                title: titleController.text,
                content: contentController.text,
                author: 'Admin',
                createdAt: DateTime.now(),
              );
              try {
                await InformationService().createInformation(info);
                setState(() => informationList.add(info));
              } catch (e) {
                print("Misslyckades att skapa: $e");
              }
              Navigator.pop(context);
            },
            child: const Text("Lägg till"),
          ),
        ],
      ),
    );
  }

  void _deleteInformation(InformationModel info) async {
    try {
      await InformationService().deleteInformation(info);
      setState(() => informationList.remove(info));
    } catch (e) {
      print("Misslyckades att ta bort: $e");
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text("Hantera Information"),
        backgroundColor: const Color(0xFF2E2E2E),
        foregroundColor: const Color(0xFFDAA520),
      ),
      backgroundColor: const Color(0xFF2E2E2E),
      floatingActionButton: FloatingActionButton(
        onPressed: _showAddDialog,
        backgroundColor: const Color(0xFFDAA520),
        child: const Icon(Icons.add, color: Colors.black),
      ),
      body: ListView.builder(
        itemCount: informationList.length,
        itemBuilder: (context, index) {
          final info = informationList[index];
          return Card(
            margin: const EdgeInsets.symmetric(vertical: 8, horizontal: 16),
            child: ListTile(
              title: Text(info.title),
              subtitle: Column(
                crossAxisAlignment: CrossAxisAlignment.start,
                children: [
                  Text(info.content),
                  const SizedBox(height: 4),
                  Text("Av: ${info.author}", style: const TextStyle(fontSize: 12, fontStyle: FontStyle.italic)),
                  Text("Skapad: ${DateFormat('yyyy-MM-dd HH:mm').format(info.createdAt)}", style: const TextStyle(fontSize: 12)),
                ],
              ),
              trailing: IconButton(
                icon: const Icon(Icons.delete, color: Colors.red),
                onPressed: () => _deleteInformation(info),
              ),
            ),
          );
        },
      ),
    );
  }
}