import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:intl/intl.dart';
import 'package:marco/controller/expense/expense_detail_controller.dart';
import 'package:marco/helpers/widgets/my_text.dart';

class ReimbursementBottomSheet extends StatefulWidget {
  final String expenseId;
   final String statusId;
  final void Function() onClose;
  final Future<bool> Function({
    required String comment,
    required String reimburseTransactionId,
    required String reimburseDate,
    required String reimburseById,
    
  }) onSubmit;

  const ReimbursementBottomSheet({
    super.key,
    required this.expenseId,
    required this.onClose,
    required this.onSubmit,
     required this.statusId,
    
  });

  @override
  State<ReimbursementBottomSheet> createState() => _ReimbursementBottomSheetState();
}

class _ReimbursementBottomSheetState extends State<ReimbursementBottomSheet> {
  final ExpenseDetailController controller = Get.find<ExpenseDetailController>();

  final TextEditingController commentCtrl = TextEditingController();
  final TextEditingController txnCtrl = TextEditingController();
  final RxString dateStr = ''.obs;

  @override
  void dispose() {
    commentCtrl.dispose();
    txnCtrl.dispose();
    super.dispose();
  }

  void _showEmployeeList() {
    showModalBottomSheet(
      context: context,
      backgroundColor: Colors.white,
      shape: const RoundedRectangleBorder(borderRadius: BorderRadius.vertical(top: Radius.circular(16))),
      builder: (_) {
        return SizedBox(
          height: 300,
          child: Obx(() {
            final employees = controller.allEmployees;
            if (employees.isEmpty) return const Center(child: Text("No employees found"));
            return ListView.builder(
              itemCount: employees.length,
              itemBuilder: (_, index) {
                final emp = employees[index];
                final fullName = '${emp.firstName} ${emp.lastName}'.trim();
                return ListTile(
                  title: Text(fullName.isNotEmpty ? fullName : "Unnamed"),
                  onTap: () {
                    controller.selectedReimbursedBy.value = emp;
                    Navigator.pop(context);
                  },
                );
              },
            );
          }),
        );
      },
    );
  }

  @override
  Widget build(BuildContext context) {
    return SafeArea(
      child: Container(
        padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 20),
        decoration: const BoxDecoration(
          color: Colors.white,
          borderRadius: BorderRadius.vertical(top: Radius.circular(24)),
        ),
        child: Column(
          mainAxisSize: MainAxisSize.min,
          children: [
            // Drag handle
            Container(
              width: 50,
              height: 4,
              margin: const EdgeInsets.only(bottom: 16),
              decoration: BoxDecoration(
                color: Colors.grey.shade300,
                borderRadius: BorderRadius.circular(20),
              ),
            ),

            // Title
            Row(
              mainAxisAlignment: MainAxisAlignment.spaceBetween,
              children: [
                MyText.titleLarge('Reimbursement Info', fontWeight: 700),
                const SizedBox(),
              ],
            ),
            const SizedBox(height: 20),

            Flexible(
              child: SingleChildScrollView(
                child: Column(
                  children: [
                    _buildInputField(label: 'Comment', controller: commentCtrl),
                    const SizedBox(height: 16),
                    _buildInputField(label: 'Transaction ID', controller: txnCtrl),
                    const SizedBox(height: 16),
                    _buildDatePickerField(),
                    const SizedBox(height: 16),
                    _buildEmployeePickerField(),
                    const SizedBox(height: 24),
                    _buildActionButtons(),
                  ],
                ),
              ),
            ),
          ],
        ),
      ),
    );
  }

  Widget _buildInputField({required String label, required TextEditingController controller}) {
    return TextField(
      controller: controller,
      decoration: InputDecoration(
        labelText: label,
        contentPadding: const EdgeInsets.symmetric(horizontal: 12, vertical: 14),
        border: OutlineInputBorder(
          borderRadius: BorderRadius.circular(8),
          borderSide: BorderSide(color: Colors.grey.shade300),
        ),
      ),
    );
  }

  Widget _buildDatePickerField() {
    return Obx(() {
      return InkWell(
        onTap: () async {
          final picked = await showDatePicker(
            context: context,
            initialDate: dateStr.value.isEmpty
                ? DateTime.now()
                : DateFormat('yyyy-MM-dd').parse(dateStr.value),
            firstDate: DateTime(2020),
            lastDate: DateTime(2100),
          );
          if (picked != null) {
            dateStr.value = DateFormat('yyyy-MM-dd').format(picked);
          }
        },
        child: InputDecorator(
          decoration: InputDecoration(
            labelText: 'Reimbursement Date',
            contentPadding: const EdgeInsets.symmetric(horizontal: 12, vertical: 14),
            border: OutlineInputBorder(
              borderRadius: BorderRadius.circular(8),
              borderSide: BorderSide(color: Colors.grey.shade300),
            ),
          ),
          child: Row(
            children: [
              Icon(Icons.date_range, color: Colors.grey.shade600),
              const SizedBox(width: 10),
              Text(
                dateStr.value.isEmpty ? "Select Date" : dateStr.value,
                style: TextStyle(
                  fontSize: 14,
                  color: dateStr.value.isEmpty ? Colors.grey : Colors.black,
                ),
              ),
            ],
          ),
        ),
      );
    });
  }

  Widget _buildEmployeePickerField() {
    return Obx(() {
      return GestureDetector(
        onTap: _showEmployeeList,
        child: InputDecorator(
          decoration: InputDecoration(
            labelText: 'Reimbursed By',
            contentPadding: const EdgeInsets.symmetric(horizontal: 12, vertical: 14),
            border: OutlineInputBorder(
              borderRadius: BorderRadius.circular(8),
              borderSide: BorderSide(color: Colors.grey.shade300),
            ),
          ),
          child: Text(
            controller.selectedReimbursedBy.value == null
                ? "Select Reimbursed By"
                : '${controller.selectedReimbursedBy.value?.firstName ?? ''} ${controller.selectedReimbursedBy.value?.lastName ?? ''}',
            style: TextStyle(
              fontSize: 14,
              color: controller.selectedReimbursedBy.value == null ? Colors.grey : Colors.black,
            ),
          ),
        ),
      );
    });
  }

  Widget _buildActionButtons() {
    return Row(
      children: [
        Expanded(
          child: ElevatedButton.icon(
            onPressed: () {
              widget.onClose();
              Get.back();
            },
            icon: const Icon(Icons.close, color: Colors.white),
            label: MyText.bodyMedium("Cancel", color: Colors.white, fontWeight: 600),
            style: ElevatedButton.styleFrom(
              backgroundColor: Colors.red,
              shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
              padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 14),
            ),
          ),
        ),
        const SizedBox(width: 12),
        Expanded(
          child: Obx(() {
            return ElevatedButton.icon(
              onPressed: controller.isLoading.value
                  ? null
                  : () async {
                      if (commentCtrl.text.trim().isEmpty ||
                          txnCtrl.text.trim().isEmpty ||
                          dateStr.value.isEmpty ||
                          controller.selectedReimbursedBy.value == null) {
                        Get.snackbar("Incomplete", "Please fill all fields");
                        return;
                      }

                      final success = await widget.onSubmit(
                        comment: commentCtrl.text.trim(),
                        reimburseTransactionId: txnCtrl.text.trim(),
                        reimburseDate: dateStr.value,
                        reimburseById: controller.selectedReimbursedBy.value!.id,
                      );

                      if (success) {
                        Get.back();
                        Get.snackbar('Success', 'Reimbursement submitted');
                      } else {
                        Get.snackbar('Error', controller.errorMessage.value);
                      }
                    },
              icon: const Icon(Icons.check_circle_outline, color: Colors.white),
              label: MyText.bodyMedium(
                controller.isLoading.value ? "Submitting..." : "Submit",
                color: Colors.white,
                fontWeight: 600,
              ),
              style: ElevatedButton.styleFrom(
                backgroundColor: Colors.indigo,
                shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
                padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 14),
              ),
            );
          }),
        ),
      ],
    );
  }
}