import 'package:flutter/material.dart';
import 'package:intl/intl.dart';
import 'package:intl/date_symbol_data_local.dart';
import 'basket.dart';
import 'sample_data.dart';

class Finance extends StatelessWidget {
  const Finance({super.key});

  @override
  Widget build(BuildContext context) {
    initializeDateFormatting('de_DE');
    Intl.defaultLocale = 'de_DE';

    return Scaffold(
        appBar: AppBar(
          toolbarHeight: 75,
          title: const Card(
            child: ListTile(
                leading: Icon(
                  Icons.euro,
                ),
                title: Text(
                  'Aktuelles Guthaben:',
                ),
                subtitle: Text(
                  '-00,34€',
                )),
          ),
        ),
        body: ListView.builder(
            itemCount: SampleData().transactions.length,
            itemBuilder: (context, index) {
              return Card(
                  child: ListTile(
                      leading: getIcon(SampleData().transactions[index].type),
                      title:
                          Text(gettitle(SampleData().transactions[index].type)),
                      subtitle: getSubtitle(SampleData().transactions[index]),
                      trailing: getTrailing(context, index),
                      onTap: (SampleData().transactions[index].basket != null)
                          ? () {
                              showBottomSheet(
                                  context: context,
                                  builder: (BuildContext context) {
                                    return ShowBasket(SampleData()
                                        .transactions[index]
                                        .basket!);
                                  });
                            }
                          : null));
            }));
  }

  String gettitle(TransaktionArt art) {
    switch (art) {
      case TransaktionArt.aufladung:
        return 'Aufladung';
      case TransaktionArt.einkauf:
        return 'Einkauf';
      case TransaktionArt.korrektur:
        return 'Korrektur';
      case TransaktionArt.monatlBeitrag:
        return 'Monatlicher Beitrag';
      default:
        return 'Ein Error ist aufgetreten';
    }
  }

  Text getSubtitle(Transaction transaction) {
    String text = '${transaction.amount / 100}';
    text += '€  ';
    text += DateFormat("EEEE, dd. MMMM yyyy HH:mm").format(transaction.date);
    if (transaction.description != null) {
      (text += '\n${transaction.description}');
    }

    return Text(text);
  }

  Icon getIcon(TransaktionArt art) {
    switch (art) {
      case TransaktionArt.aufladung:
        return const Icon(Icons.savings);
      case TransaktionArt.einkauf:
        return const Icon(Icons.shopping_basket);
      case TransaktionArt.monatlBeitrag:
        return const Icon(Icons.payment);
      default:
        return const Icon(Icons.priority_high);
    }
  }

  getTrailing(BuildContext context, int index) {
    if (SampleData().transactions[index].type == TransaktionArt.einkauf) {
      return IconButton(
        icon: const Icon(Icons.manage_history),
        onPressed: () {
          showBottomSheet(
              context: context,
              builder: (BuildContext context) {
                return ShowBasket(SampleData().transactions[index].basket!,
                    editable: true);
              });
        },
      );
    } else {
      return null;
    }
  }
}