import 'dart:async';
import 'package:chicken_farm/components/vb_dict_label.dart';
import 'package:chicken_farm/core/utils/logger.dart';
import 'package:flutter/material.dart';
import 'package:chicken_farm/apis/breeding/_query.dart';
import 'package:chicken_farm/components/vb_electronic_id_field.dart';
import 'package:chicken_farm/core/utils/toast.dart';
import 'package:chicken_farm/modes/breeding/chicken.dart';
import 'package:intl/intl.dart';

class IndividualQueryPage extends StatefulWidget {
  const IndividualQueryPage({super.key});

  @override
  State<IndividualQueryPage> createState() => _IndividualQueryPageState();
}

class _IndividualQueryPageState extends State<IndividualQueryPage> {
  final BreedQueryApi _breedQueryApi = BreedQueryApi();
  ChickenModel? _chicken;
  String? _electronicId;
  bool _isLoading = false;
  final TextEditingController _idController = TextEditingController();
  Timer? _debounceTimer; // 添加Timer变量用于管理延时操作

  // 添加手动模式状态
  bool _isManualMode = false;

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

  @override
  void dispose() {
    // 取消任何待处理的计时器
    if (_debounceTimer != null) {
      _debounceTimer!.cancel();
    }
    _idController.dispose();
    super.dispose();
  }

  void _queryChickenOnce(String id) {
    if (_debounceTimer != null) {
      _debounceTimer!.cancel();
    }

    _debounceTimer = Timer(Duration(milliseconds: 800), () {
      _queryChicken(id);
    });
  }

  Future<void> _queryChicken(String id) async {
    if (id.isEmpty) {
      ToastUtil.warning('请输入电子编号');
      return;
    }

    setState(() {
      _isLoading = true;
    });

    try {
      final chicken = await _breedQueryApi.queryChicken(id.trim());
      if (chicken != null) {
        if (mounted) {
          // 遵循Flutter异步操作与UI更新安全规范
          setState(() {
            _chicken = chicken;
          });
        }
      } else {
        if (mounted) {
          // 遵循Flutter异步操作与UI更新安全规范
          ToastUtil.error('未找到该编号对应的个体信息');
          setState(() {
            _chicken = null;
          });
        }
      }
    } catch (e) {
      if (mounted) {
        // 遵循Flutter异步操作与UI更新安全规范
        ToastUtil.error('查询失败: $e');
        logger.e(e);
        setState(() {
          _chicken = null;
        });
      }
    } finally {
      if (mounted) {
        // 遵循Flutter异步操作与UI更新安全规范
        setState(() {
          _isLoading = false;
        });
      }
    }
  }

  // 手动查询方法
  void _manualQueryChicken() {
    if (_idController.text.isEmpty) {
      ToastUtil.warning('请输入电子编号');
      return;
    }
    _queryChicken(_idController.text);
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: const Text('个体查询')),
      body: Padding(
        padding: const EdgeInsets.all(16.0),
        child: Column(
          children: [
            // 按钮行 - 手动/自动切换按钮
            Row(
              mainAxisAlignment: MainAxisAlignment.end, // 靠右对齐
              children: [
                // 手动/自动切换按钮
                SizedBox(
                  // 设置固定宽度
                  width: 120,
                  child: ElevatedButton(
                    onPressed: () {
                      setState(() {
                        _isManualMode = !_isManualMode;
                        _idController.clear();
                        _chicken = null;
                        _electronicId = null;
                      });
                    },
                    style: ElevatedButton.styleFrom(
                      backgroundColor: _isManualMode
                          ? Colors.blue
                          : Colors.orange,
                      foregroundColor: Colors.white,
                    ),
                    child: Text(_isManualMode ? '识别查询' : '手动查询'),
                  ),
                ),
              ],
            ),
            const SizedBox(height: 8), // 添加一点间距
            // 电子标签输入区域 - 根据模式动态显示
            if (!_isManualMode) ...[
              _buildPlatformSpecificField(),
            ] else ...[
              // 手动输入模式
              Row(
                children: [
                  Expanded(
                    child: TextField(
                      controller: _idController,
                      decoration: const InputDecoration(
                        labelText: '电子编号',
                        border: OutlineInputBorder(),
                        hintText: '请输入电子编号',
                      ),
                    ),
                  ),
                  const SizedBox(width: 8),
                  ElevatedButton(
                    onPressed: _manualQueryChicken,
                    style: ElevatedButton.styleFrom(
                      backgroundColor: Colors.green,
                      foregroundColor: Colors.white,
                    ),
                    child: const Text('查询'),
                  ),
                ],
              ),
            ],
            const SizedBox(height: 16),
            // 个体信息展示区域
            if (_chicken != null) ...[
              Expanded(
                child: SingleChildScrollView(
                  child: Card(
                    child: Padding(
                      padding: const EdgeInsets.all(16.0),
                      child: Column(
                        crossAxisAlignment: CrossAxisAlignment.start,
                        children: [
                          // 基本信息
                          const Text(
                            '基本信息',
                            style: TextStyle(
                              fontSize: 18,
                              fontWeight: FontWeight.bold,
                            ),
                          ),
                          const SizedBox(height: 10),
                          _buildInfoRow('电子编号：', _chicken!.electronicId),
                          _buildInfoRow('批次号：', _chicken!.batchNum),
                          _buildInfoRow('家系编号：', _chicken!.familyNum),
                          _buildInfoRow('笼号：', _chicken!.cageNum ?? '无'),
                          _buildInfoRow2(
                            '性别：',
                            VberDictLabel(
                              dictType: "chicken_gender",
                              value: _chicken!.gender.toString(),
                            ),
                          ),
                          _buildInfoRow(
                            '孵化日期：',
                            DateFormat(
                              'yyyy-MM-dd',
                            ).format(_chicken!.hatchDate),
                          ),
                          if (_chicken!.currentAge != null)
                            _buildInfoRow('当前日龄：', '${_chicken!.currentAge} 天'),
                          _buildInfoRow2(
                            '养殖状态：',
                            VberDictLabel(
                              dictType: "chicken_status",
                              value: _chicken!.status.toString(),
                            ),
                          ),

                          if (_chicken!.cullReason != null)
                            _buildInfoRow2(
                              '淘汰原因：',
                              VberDictLabel(
                                dictType: "chicken_cull_reason",
                                value: _chicken!.cullReason.toString(),
                              ),
                            ),
                          if (_chicken!.disposalMethod != null)
                            _buildInfoRow2(
                              '处理方式：',
                              VberDictLabel(
                                dictType: "chicken_disposal_method",
                                value: _chicken!.disposalMethod.toString(),
                              ),
                            ),
                          if (_chicken!.cullTime != null)
                            _buildInfoRow(
                              '淘汰时间：',
                              DateFormat(
                                'yyyy-MM-dd HH:mm:ss',
                              ).format(_chicken!.cullTime!),
                            ),
                          const SizedBox(height: 20),

                          // SOP信息
                          // const Text(
                          //   'SOP信息',
                          //   style: TextStyle(
                          //     fontSize: 18,
                          //     fontWeight: FontWeight.bold,
                          //   ),
                          // ),
                          // const SizedBox(height: 10),
                          // _buildInfoRow('饲料SOP：', _chicken!.feedSopName ?? '无'),
                          // _buildInfoRow('用药SOP：', _chicken!.drugSopName ?? '无'),
                          // _buildInfoRow(
                          //   '疫苗SOP：',
                          //   _chicken!.vaccineSopName ?? '无',
                          // ),
                        ],
                      ),
                    ),
                  ),
                ),
              ),
            ] else if (!_isLoading)
              Expanded(
                child: Center(
                  child: Text(
                    '请${_isManualMode ? "输入" : "识别"}电子编号查询',
                    style: Theme.of(
                      context,
                    ).textTheme.titleMedium?.copyWith(color: Colors.grey[600]),
                  ),
                ),
              ),
          ],
        ),
      ),
    );
  }

  // 根据平台构建特定字段组件
  Widget _buildPlatformSpecificField() {
    return VberElectronicIdsField(
      electronicId: _electronicId,
      scanMilliseconds: 1000,
      onIdScanned: (id) {
        setState(() {
          _electronicId = id;
        });
        _queryChickenOnce(id);
      },
      label: '电子编号',
      placeholder: '未识别',
    );
  }

  Widget _buildInfoRow(String label, String value) {
    return Padding(
      padding: const EdgeInsets.only(bottom: 8.0),
      child: Row(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          SizedBox(
            width: 80,
            child: Text(
              label,
              style: const TextStyle(fontWeight: FontWeight.w500),
            ),
          ),
          Expanded(
            child: Text(value, style: const TextStyle(color: Colors.black87)),
          ),
        ],
      ),
    );
  }

  Widget _buildInfoRow2(String label, Widget value) {
    return Padding(
      padding: const EdgeInsets.only(bottom: 8.0),
      child: Row(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          SizedBox(
            width: 80,
            child: Text(
              label,
              style: const TextStyle(fontWeight: FontWeight.w500),
            ),
          ),
          value,
        ],
      ),
    );
  }
}