// * Widget for selecting the timing of last precipitation
// * Features:
// * - Dropdown menu for time selection
// * - Multiple predefined time ranges
// * - Localized time descriptions
// * Available time ranges:
// * - Currently raining
// * - Same morning
// * - Last night
// * - Previous day/evening
// * - 2-3 days ago
// * - 4-6 days ago
// * - 1 week or more

import 'package:flutter/material.dart';
import 'package:fforte/l10n/app_localizations.dart';

/// Widget for recording when the last precipitation occurred
/// Used to track weather conditions during wildlife monitoring
class LetzterNiederschlag extends StatefulWidget {
  /// Controller for storing the selected precipitation timing
  final TextEditingController controller;

  const LetzterNiederschlag({super.key, required this.controller});

  @override
  LetzterNiederschlagState createState() => LetzterNiederschlagState();
}

/// State class for the last precipitation selection widget
class LetzterNiederschlagState extends State<LetzterNiederschlag> {
  /// Currently selected precipitation timing value
  late String? selectedValue;
  
  @override
  void initState() {
    // Initialize selection from controller
    if (widget.controller.text == "") {
      selectedValue = null;
    } else {
      selectedValue = widget.controller.text;
    }
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    return DropdownButton<String>(
      isExpanded: true,
      value: selectedValue,
      hint: Text(AppLocalizations.of(context)!.letzterNiederschlag),
      onChanged: (String? newValue) {
        setState(() {
          selectedValue = newValue; 
          widget.controller.text = newValue ?? "";
        });
      },
      items: [
        // Currently raining option
        DropdownMenuItem<String>(
          value: "aktuell",
          child: Text(AppLocalizations.of(context)!.aktuell),
        ),
        // Same morning option
        DropdownMenuItem<String>(
          value: "am selben Morgen",
          child: Text(AppLocalizations.of(context)!.selberMorgen),
        ),
        // Last night option
        DropdownMenuItem<String>(
          value: "in der Nacht",
          child: Text(AppLocalizations.of(context)!.letzteNacht),
        ),
        // Previous day/evening option
        DropdownMenuItem<String>(
          value: "am Tag oder Abend zuvor",
          child: Text(AppLocalizations.of(context)!.vortag),
        ),
        // 2-3 days ago option
        DropdownMenuItem<String>(
          value: "vor 2 bis 3 Tagen",
          child: Text(AppLocalizations.of(context)!.vor23Tagen),
        ),
        // 4-6 days ago option
        DropdownMenuItem<String>(
          value: "vor 4 bis 6 Tagen",
          child: Text(AppLocalizations.of(context)!.vor46Tagen),
        ),
        // 1 week or more option
        DropdownMenuItem<String>(
          value: ">=1 Woche",
          child: Text(AppLocalizations.of(context)!.vor1Woche),
        ),
      ],
    );
  }
}