import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:google_fonts/google_fonts.dart';
import 'package:supabase_flutter/supabase_flutter.dart';
import 'package:tugas_akhir_supabase/screens/panen/analisis_hasil_screen.dart';
import 'dart:math' as math;

class AnalisisInputScreen extends StatefulWidget {
  final String userId;
  final Map<String, dynamic>? scheduleData;

  const AnalisisInputScreen({
    super.key,
    required this.userId,
    this.scheduleData,
  });

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

class _AnalisisInputScreenState extends State<AnalisisInputScreen> {
  final _formKey = GlobalKey<FormState>();
  bool _isLoading = false;

  // Form controllers
  final _areaController = TextEditingController();
  final _quantityController = TextEditingController();
  final _seedCostController = TextEditingController();
  final _fertilizerCostController = TextEditingController();
  final _pesticideCostController = TextEditingController();
  final _laborCostController = TextEditingController();
  final _irrigationCostController = TextEditingController();
  final _pricePerKgController = TextEditingController();

  // Selected schedule
  String? _selectedScheduleId;
  Map<String, dynamic>? _selectedSchedule;
  List<Map<String, dynamic>> _schedules = [];
  bool _isManualMode = false;

  @override
  void initState() {
    super.initState();
    debugPrint('AnalisisInputScreen initState with userId: ${widget.userId}');
    debugPrint('Schedule data provided: ${widget.scheduleData}');
    _fetchSchedules();

    // Set default values if schedule data is provided
    if (widget.scheduleData != null) {
      _selectedScheduleId = widget.scheduleData!['id'];
      _isManualMode = false;
      debugPrint(
        'Setting selected schedule ID from props: $_selectedScheduleId',
      );
    } else {
      _isManualMode = true;
      debugPrint('No schedule data provided, using manual mode');
      _setDefaultValues();
    }
  }

  void _setDefaultValues() {
    // For manual mode, we can set either empty fields or default values
    if (_isManualMode) {
      // Clear all fields first
      _areaController.text = '';
      _quantityController.text = '';

      // Either set defaults or clear fields based on whether we want empty forms for manual
      // For true manual input with empty forms, uncomment the lines below:
      _seedCostController.text = '';
      _fertilizerCostController.text = '';
      _pesticideCostController.text = '';
      _laborCostController.text = '';
      _irrigationCostController.text = '';
      _pricePerKgController.text = '';

      // Or use default values if preferred (comment these out if using empty fields above)
      // _seedCostController.text = '30000';
      // _fertilizerCostController.text = '60000';
      // _pesticideCostController.text = '50000';
      // _laborCostController.text = '300000';
      // _irrigationCostController.text = '40000';
      // _pricePerKgController.text = '4550';
    }
  }

  @override
  void dispose() {
    _areaController.dispose();
    _quantityController.dispose();
    _seedCostController.dispose();
    _fertilizerCostController.dispose();
    _pesticideCostController.dispose();
    _laborCostController.dispose();
    _irrigationCostController.dispose();
    _pricePerKgController.dispose();
    super.dispose();
  }

  Future<void> _fetchSchedules() async {
    if (widget.userId.isEmpty) return;

    try {
      debugPrint('Fetching schedules for user: ${widget.userId}');

      final response = await Supabase.instance.client
          .from('crop_schedules')
          .select(
            'id, crop_name, field_id, plot, start_date, end_date, seed_cost, fertilizer_cost, pesticide_cost, irrigation_cost, expected_yield',
          )
          .eq('user_id', widget.userId)
          .order('created_at', ascending: false);

      debugPrint('Fetched schedules response: $response');

      if (mounted) {
        setState(() {
          _schedules = List<Map<String, dynamic>>.from(response);
          debugPrint('Schedules loaded: ${_schedules.length}');

          // Jika ada jadwal yang diberikan melalui widget.scheduleData, pilih itu
          if (widget.scheduleData != null &&
              widget.scheduleData!['id'] != null) {
            _selectedScheduleId = widget.scheduleData!['id'];
            _isManualMode = false;
            debugPrint('Selected schedule from props: $_selectedScheduleId');
            _updateFormFieldsFromSelectedSchedule();
          }
          // Jika tidak ada jadwal yang dipilih tapi ada jadwal tersedia, pilih yang pertama
          else if (_schedules.isNotEmpty && _selectedScheduleId == null) {
            _selectedScheduleId = _schedules.first['id'];
            _isManualMode = false;
            debugPrint('Selected first schedule: $_selectedScheduleId');
            _updateFormFieldsFromSelectedSchedule();
          } else if (_isManualMode) {
            _setDefaultValues();
          }
        });
      }
    } catch (e) {
      debugPrint('Error fetching schedules: $e');
    }
  }

  void _updateFormFieldsFromSelectedSchedule() {
    if (_isManualMode || _selectedScheduleId == null || _schedules.isEmpty) {
      _setDefaultValues();
      return;
    }

    try {
      // Find the selected schedule from the schedules list
      _selectedSchedule = _schedules.firstWhere(
        (schedule) => schedule['id'] == _selectedScheduleId,
        orElse: () => {},
      );

      if (_selectedSchedule == null || _selectedSchedule!.isEmpty) {
        debugPrint('Selected schedule not found in schedules list');
        _setDefaultValues();
        return;
      }

      debugPrint(
        'Updating form fields from selected schedule: $_selectedSchedule',
      );

      // Update form fields with data from the selected schedule
      _seedCostController.text =
          (_selectedSchedule!['seed_cost'] ?? 0).toString();
      _fertilizerCostController.text =
          (_selectedSchedule!['fertilizer_cost'] ?? 0).toString();
      _pesticideCostController.text =
          (_selectedSchedule!['pesticide_cost'] ?? 0).toString();
      _irrigationCostController.text =
          (_selectedSchedule!['irrigation_cost'] ?? 0).toString();

      // Clear fields that should be filled by the user
      _areaController.text = '';
      _quantityController.text = '';
      _laborCostController.text = '300000'; // Default value
      _pricePerKgController.text = '4550'; // Default value
    } catch (e) {
      debugPrint('Error updating form fields from selected schedule: $e');
      _setDefaultValues();
    }
  }

  Future<void> _analyzeHarvest() async {
    if (!_formKey.currentState!.validate()) return;

    setState(() => _isLoading = true);

    try {
      // Parse input values
      final double area = double.tryParse(_areaController.text) ?? 0;
      final double quantity = double.tryParse(_quantityController.text) ?? 0;
      final double seedCost = double.tryParse(_seedCostController.text) ?? 0;
      final double fertilizerCost =
          double.tryParse(_fertilizerCostController.text) ?? 0;
      final double pesticideCost =
          double.tryParse(_pesticideCostController.text) ?? 0;
      final double laborCost = double.tryParse(_laborCostController.text) ?? 0;
      final double irrigationCost =
          double.tryParse(_irrigationCostController.text) ?? 0;
      final double pricePerKg =
          double.tryParse(_pricePerKgController.text) ?? 0;

      // Gunakan compute untuk memindahkan kalkulasi berat ke isolate terpisah
      // Ini mencegah UI freeze dan main isolate paused
      await Future.delayed(
        const Duration(milliseconds: 100),
      ); // Berikan waktu untuk UI update

      // Calculate productivity (kilogram/ha)
      final double productivityPerHa = area > 0 ? (quantity / area) * 10000 : 0;

      // Calculate total cost
      final double totalCost =
          seedCost +
          fertilizerCost +
          pesticideCost +
          laborCost +
          irrigationCost;

      // Calculate income (quantity in kilogram)
      final double income = quantity * pricePerKg;

      // Calculate profit
      final double profit = income - totalCost;

      // Calculate profit margin
      final double profitMargin = income > 0 ? (profit / income) * 100 : 0;

      // Calculate R/C ratio
      final double rcRatio = totalCost > 0 ? income / totalCost : 0;

      // Calculate B/C ratio
      final double bcRatio = totalCost > 0 ? profit / totalCost : 0;

      // Calculate ROI
      final double roi = totalCost > 0 ? (profit / totalCost) * 100 : 0;

      // Determine status based on productivity and profit margin
      String status;
      if (productivityPerHa >= 5000.0 && profitMargin >= 30) {
        status = 'Baik';
      } else if (productivityPerHa >= 5000.0 || profitMargin >= 30) {
        status = 'Cukup';
      } else {
        status = 'Kurang';
      }

      // Prepare harvest data
      final Map<String, dynamic> harvestData = {
        'user_id': widget.userId,
        'schedule_id': _selectedScheduleId,
        'area': area,
        'quantity': quantity,
        'productivity': productivityPerHa,
        'seed_cost': seedCost,
        'fertilizer_cost': fertilizerCost,
        'pesticide_cost': pesticideCost,
        'labor_cost': laborCost,
        'irrigation_cost': irrigationCost,
        'cost': totalCost,
        'price_per_kg': pricePerKg,
        'income': income,
        'profit': profit,
        'profit_margin': profitMargin,
        'rc_ratio': rcRatio,
        'bc_ratio': bcRatio,
        'roi': roi,
        'status': status,
        'harvest_date': DateTime.now().toIso8601String(),
      };

      // Berikan waktu untuk UI update sebelum navigasi
      await Future.delayed(const Duration(milliseconds: 100));

      // Navigate to result screen
      if (!mounted) return;

      Navigator.push(
        context,
        MaterialPageRoute(
          builder:
              (context) => HarvestResultScreen(
                userId: widget.userId,
                harvestData: harvestData,
                scheduleData: widget.scheduleData,
              ),
        ),
      );
    } catch (e) {
      debugPrint('Error analyzing harvest: $e');
      if (!mounted) return;
      ScaffoldMessenger.of(context).showSnackBar(
        SnackBar(
          content: Text(
            'Error: ${e.toString().substring(0, math.min(e.toString().length, 100))}',
          ),
          backgroundColor: Colors.red,
        ),
      );
    } finally {
      if (mounted) {
        setState(() => _isLoading = false);
      }
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Analisis Hasil Panen'),
        backgroundColor: const Color(0xFF056839),
        foregroundColor: Colors.white,
        actions: [
          IconButton(
            icon: const Icon(Icons.refresh),
            tooltip: 'Refresh Data',
            onPressed: () {
              setState(() => _isLoading = true);
              _fetchSchedules().then((_) {
                setState(() => _isLoading = false);
                ScaffoldMessenger.of(context).showSnackBar(
                  const SnackBar(
                    content: Text('Data jadwal berhasil diperbarui'),
                  ),
                );
              });
            },
          ),
        ],
      ),
      body:
          _isLoading
              ? const Center(child: CircularProgressIndicator())
              : _buildForm(),
    );
  }

  Widget _buildForm() {
    return Form(
      key: _formKey,
      child: ListView(
        padding: const EdgeInsets.all(16.0),
        children: [
          // Data Tanaman section
          _buildSectionTitle('Data Tanaman'),
          const SizedBox(height: 16),

          // Jadwal Tanam dropdown
          _buildScheduleDropdown(),

          const SizedBox(height: 16),

          // Luas Lahan field
          _buildTextField(
            controller: _areaController,
            label: 'Luas Lahan (m²)',
            icon: Icons.landscape,
            keyboardType: TextInputType.number,
            validator: (value) {
              if (value == null || value.isEmpty) {
                return 'Masukkan luas lahan';
              }
              return null;
            },
          ),

          const SizedBox(height: 16),

          // Total Panen field
          _buildTextField(
            controller: _quantityController,
            label: 'Total Panen (kilogram)',
            icon: Icons.shopping_basket,
            keyboardType: TextInputType.number,
            validator: (value) {
              if (value == null || value.isEmpty) {
                return 'Masukkan total panen';
              }
              return null;
            },
          ),

          const SizedBox(height: 24),

          // Biaya Produksi section
          _buildSectionTitle('Biaya Produksi'),
          const SizedBox(height: 16),

          // Biaya Bibit field
          _buildTextField(
            controller: _seedCostController,
            label: 'Biaya Bibit (Rp)',
            icon: Icons.spa,
            keyboardType: TextInputType.number,
            prefixText: 'Rp ',
            validator: (value) {
              if (value == null || value.isEmpty) {
                return 'Masukkan biaya bibit';
              }
              return null;
            },
          ),

          const SizedBox(height: 16),

          // Biaya Pupuk field
          _buildTextField(
            controller: _fertilizerCostController,
            label: 'Biaya Pupuk (Rp)',
            icon: Icons.eco,
            keyboardType: TextInputType.number,
            prefixText: 'Rp ',
            validator: (value) {
              if (value == null || value.isEmpty) {
                return 'Masukkan biaya pupuk';
              }
              return null;
            },
          ),

          const SizedBox(height: 16),

          // Biaya Pestisida field
          _buildTextField(
            controller: _pesticideCostController,
            label: 'Biaya Pestisida (Rp)',
            icon: Icons.bug_report,
            keyboardType: TextInputType.number,
            prefixText: 'Rp ',
            validator: (value) {
              if (value == null || value.isEmpty) {
                return 'Masukkan biaya pestisida';
              }
              return null;
            },
          ),

          const SizedBox(height: 16),

          // Biaya Tenaga Kerja field
          _buildTextField(
            controller: _laborCostController,
            label: 'Biaya Tenaga Kerja (Rp)',
            icon: Icons.people,
            keyboardType: TextInputType.number,
            prefixText: 'Rp ',
            validator: (value) {
              if (value == null || value.isEmpty) {
                return 'Masukkan biaya tenaga kerja';
              }
              return null;
            },
          ),

          const SizedBox(height: 16),

          // Biaya Irigasi field
          _buildTextField(
            controller: _irrigationCostController,
            label: 'Biaya Irigasi (Rp)',
            icon: Icons.water_drop,
            keyboardType: TextInputType.number,
            prefixText: 'Rp ',
            validator: (value) {
              if (value == null || value.isEmpty) {
                return 'Masukkan biaya irigasi';
              }
              return null;
            },
          ),

          const SizedBox(height: 24),

          // Harga Jual section
          _buildSectionTitle('Harga Jual'),
          const SizedBox(height: 16),

          // Harga Jual per Kg field
          _buildTextField(
            controller: _pricePerKgController,
            label: 'Harga Jual per Kg (Rp)',
            icon: Icons.attach_money,
            keyboardType: TextInputType.number,
            prefixText: 'Rp ',
            validator: (value) {
              if (value == null || value.isEmpty) {
                return 'Masukkan harga jual per kg';
              }
              return null;
            },
          ),

          const SizedBox(height: 32),

          // Analyze button
          SizedBox(
            height: 50,
            child: ElevatedButton(
              onPressed: _isLoading ? null : _analyzeHarvest,
              style: ElevatedButton.styleFrom(
                backgroundColor: const Color(0xFF056839),
                foregroundColor: Colors.white,
                textStyle: const TextStyle(
                  fontSize: 16,
                  fontWeight: FontWeight.bold,
                ),
              ),
              child:
                  _isLoading
                      ? const CircularProgressIndicator(color: Colors.white)
                      : const Text('ANALISIS HASIL PANEN'),
            ),
          ),

          const SizedBox(height: 24),
        ],
      ),
    );
  }

  Widget _buildSectionTitle(String title) {
    return Text(
      title,
      style: GoogleFonts.poppins(
        fontSize: 20,
        fontWeight: FontWeight.w600,
        color: const Color(0xFF056839),
      ),
    );
  }

  Widget _buildTextField({
    required TextEditingController controller,
    required String label,
    required IconData icon,
    TextInputType keyboardType = TextInputType.text,
    String? Function(String?)? validator,
    String? prefixText,
  }) {
    return TextFormField(
      controller: controller,
      keyboardType: keyboardType,
      validator: validator,
      decoration: InputDecoration(
        labelText: label,
        prefixIcon: Icon(icon, color: const Color(0xFF056839)),
        prefixText: prefixText,
        border: OutlineInputBorder(borderRadius: BorderRadius.circular(12)),
        focusedBorder: OutlineInputBorder(
          borderRadius: BorderRadius.circular(12),
          borderSide: const BorderSide(color: Color(0xFF056839), width: 2),
        ),
      ),
      inputFormatters:
          keyboardType == TextInputType.number
              ? [FilteringTextInputFormatter.digitsOnly]
              : null,
    );
  }

  Widget _buildScheduleDropdown() {
    return InkWell(
      onTap: () => _showScheduleSelector(),
      child: Container(
        padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 16),
        decoration: BoxDecoration(
          border: Border.all(color: Colors.grey.shade400),
          borderRadius: BorderRadius.circular(12),
        ),
        child: Row(
          children: [
            Icon(Icons.calendar_today, color: const Color(0xFF056839)),
            const SizedBox(width: 12),
            Expanded(
              child: Column(
                crossAxisAlignment: CrossAxisAlignment.start,
                children: [
                  Text(
                    'Pilih Jadwal Tanam',
                    style: TextStyle(fontSize: 12, color: Colors.grey[600]),
                  ),
                  const SizedBox(height: 4),
                  Text(
                    _getSelectedScheduleText(),
                    style: const TextStyle(fontSize: 16),
                  ),
                ],
              ),
            ),
            const Icon(Icons.arrow_drop_down),
          ],
        ),
      ),
    );
  }

  String _getSelectedScheduleText() {
    if (_isManualMode) {
      return 'Manual';
    }

    if (_selectedScheduleId != null) {
      try {
        final selectedSchedule = _schedules.firstWhere(
          (s) => s['id'] == _selectedScheduleId,
          orElse: () => {'crop_name': 'Jadwal tidak ditemukan'},
        );
        return selectedSchedule['crop_name'] ?? 'Jadwal tidak ditemukan';
      } catch (e) {
        debugPrint('Error finding selected schedule: $e');
        return 'Jadwal tidak ditemukan';
      }
    }

    return 'Pilih Jadwal Tanam';
  }

  void _showScheduleSelector() {
    try {
      showModalBottomSheet(
        context: context,
        isScrollControlled: true,
        shape: const RoundedRectangleBorder(
          borderRadius: BorderRadius.vertical(top: Radius.circular(16)),
        ),
        builder: (context) {
          return Container(
            height: MediaQuery.of(context).size.height * 0.7,
            padding: const EdgeInsets.all(16),
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: [
                Row(
                  mainAxisAlignment: MainAxisAlignment.spaceBetween,
                  children: [
                    Text(
                      'Pilih Jadwal Tanam',
                      style: GoogleFonts.poppins(
                        fontSize: 18,
                        fontWeight: FontWeight.bold,
                      ),
                    ),
                    IconButton(
                      icon: const Icon(Icons.close),
                      onPressed: () => Navigator.pop(context),
                    ),
                  ],
                ),
                const SizedBox(height: 8),
                Text(
                  'Jadwal yang tersedia: ${_schedules.length}',
                  style: GoogleFonts.poppins(
                    fontSize: 14,
                    color: Colors.grey[600],
                  ),
                ),
                const SizedBox(height: 16),
                Expanded(
                  child:
                      _schedules.isEmpty
                          ? Center(
                            child: Column(
                              mainAxisAlignment: MainAxisAlignment.center,
                              children: [
                                Icon(
                                  Icons.calendar_today,
                                  size: 64,
                                  color: Colors.grey[400],
                                ),
                                const SizedBox(height: 16),
                                Text(
                                  'Belum ada jadwal tanam',
                                  style: GoogleFonts.poppins(
                                    fontSize: 16,
                                    fontWeight: FontWeight.w500,
                                    color: Colors.grey[600],
                                  ),
                                ),
                                const SizedBox(height: 8),
                                Text(
                                  'Gunakan mode manual untuk saat ini',
                                  style: GoogleFonts.poppins(
                                    fontSize: 14,
                                    color: Colors.grey[500],
                                  ),
                                ),
                              ],
                            ),
                          )
                          : ListView.builder(
                            itemCount:
                                _schedules.length + 1, // +1 for Manual option
                            itemBuilder: (context, index) {
                              if (index == 0) {
                                // Manual option
                                return Card(
                                  elevation: _isManualMode ? 2 : 0,
                                  color:
                                      _isManualMode
                                          ? const Color(0xFFE8F5E9)
                                          : null,
                                  margin: const EdgeInsets.only(bottom: 8),
                                  child: ListTile(
                                    leading: Container(
                                      width: 40,
                                      height: 40,
                                      decoration: BoxDecoration(
                                        color: const Color(
                                          0xFF056839,
                                        ).withOpacity(0.1),
                                        borderRadius: BorderRadius.circular(8),
                                      ),
                                      child: const Icon(
                                        Icons.add,
                                        color: Color(0xFF056839),
                                      ),
                                    ),
                                    title: const Text('Input Manual'),
                                    subtitle: const Text(
                                      'Masukkan data secara manual',
                                    ),
                                    trailing:
                                        _isManualMode
                                            ? const Icon(
                                              Icons.check_circle,
                                              color: Color(0xFF056839),
                                            )
                                            : null,
                                    onTap: () {
                                      try {
                                        setState(() {
                                          _selectedScheduleId = null;
                                          _selectedSchedule = null;
                                          _isManualMode = true;
                                        });
                                        Navigator.pop(context);

                                        // Use setState again to ensure UI updates properly
                                        setState(() {
                                          _setDefaultValues();
                                        });

                                        ScaffoldMessenger.of(
                                          context,
                                        ).showSnackBar(
                                          const SnackBar(
                                            content: Text(
                                              'Mode manual dipilih. Semua field dikosongkan.',
                                            ),
                                            duration: Duration(seconds: 2),
                                          ),
                                        );

                                        debugPrint('Selected manual mode');
                                      } catch (e) {
                                        debugPrint(
                                          'Error selecting manual mode: $e',
                                        );
                                      }
                                    },
                                  ),
                                );
                              } else {
                                // Schedule options
                                final schedule = _schedules[index - 1];
                                final isSelected =
                                    !_isManualMode &&
                                    _selectedScheduleId == schedule['id'];

                                // Format dates if available
                                String dateInfo = '';
                                if (schedule['start_date'] != null &&
                                    schedule['end_date'] != null) {
                                  try {
                                    final startDate = DateTime.parse(
                                      schedule['start_date'],
                                    );
                                    final endDate = DateTime.parse(
                                      schedule['end_date'],
                                    );
                                    dateInfo =
                                        '${startDate.day}/${startDate.month}/${startDate.year} - ${endDate.day}/${endDate.month}/${endDate.year}';
                                  } catch (e) {
                                    dateInfo = 'Tanggal tidak valid';
                                    debugPrint('Error parsing dates: $e');
                                  }
                                }

                                return Card(
                                  elevation: isSelected ? 2 : 0,
                                  color:
                                      isSelected
                                          ? const Color(0xFFE8F5E9)
                                          : null,
                                  margin: const EdgeInsets.only(bottom: 8),
                                  child: ListTile(
                                    leading: Container(
                                      width: 40,
                                      height: 40,
                                      decoration: BoxDecoration(
                                        color: const Color(
                                          0xFF056839,
                                        ).withOpacity(0.1),
                                        borderRadius: BorderRadius.circular(8),
                                      ),
                                      child: const Icon(
                                        Icons.eco,
                                        color: Color(0xFF056839),
                                      ),
                                    ),
                                    title: Text(
                                      schedule['crop_name'] ?? 'Tanaman',
                                    ),
                                    subtitle: Text(
                                      dateInfo.isNotEmpty
                                          ? 'Plot: ${schedule['plot'] ?? '-'} • $dateInfo'
                                          : 'Plot: ${schedule['plot'] ?? '-'}',
                                      style: const TextStyle(fontSize: 12),
                                    ),
                                    trailing:
                                        isSelected
                                            ? const Icon(
                                              Icons.check_circle,
                                              color: Color(0xFF056839),
                                            )
                                            : null,
                                    onTap: () {
                                      try {
                                        setState(() {
                                          _selectedScheduleId = schedule['id'];
                                          _selectedSchedule = schedule;
                                          _isManualMode = false;
                                        });
                                        Navigator.pop(context);

                                        // Use setState again to ensure UI updates properly
                                        setState(() {
                                          _updateFormFieldsFromSelectedSchedule();
                                        });

                                        debugPrint(
                                          'Selected schedule: ${schedule['id']} - ${schedule['crop_name']}',
                                        );
                                      } catch (e) {
                                        debugPrint(
                                          'Error selecting schedule: $e',
                                        );
                                      }
                                    },
                                  ),
                                );
                              }
                            },
                          ),
                ),
              ],
            ),
          );
        },
      );
    } catch (e) {
      debugPrint('Error showing schedule selector: $e');
      // Fallback to simple dialog if bottom sheet fails
      showDialog(
        context: context,
        builder:
            (context) => AlertDialog(
              title: const Text('Pilih Jadwal Tanam'),
              content: const Text(
                'Terjadi kesalahan saat menampilkan jadwal. Silakan coba lagi nanti.',
              ),
              actions: [
                TextButton(
                  onPressed: () {
                    Navigator.pop(context);
                    setState(() {
                      _isManualMode = true;
                      _selectedScheduleId = null;
                      _selectedSchedule = null;
                      _setDefaultValues();
                    });

                    ScaffoldMessenger.of(context).showSnackBar(
                      const SnackBar(
                        content: Text(
                          'Mode manual dipilih. Semua field dikosongkan.',
                        ),
                        duration: Duration(seconds: 2),
                      ),
                    );
                  },
                  child: const Text('Gunakan Mode Manual'),
                ),
              ],
            ),
      );
    }
  }
}