import 'package:chicken_farm/core/config/app_config.dart';
import 'package:chicken_farm/core/utils/datetime_util.dart';
import 'package:chicken_farm/core/utils/logger.dart';
import 'package:chicken_farm/apis/index.dart';
import 'package:chicken_farm/components/vb_rfid_field.dart';
import 'package:chicken_farm/components/vb_search_select.dart';
import 'package:chicken_farm/components/vb_select.dart';
import 'package:chicken_farm/modes/breeding/batch.dart';
import 'package:chicken_farm/modes/breeding/family.dart';
import 'package:chicken_farm/modes/rfid/rfid_model.dart';
import 'package:flutter/material.dart';
import 'package:chicken_farm/components/vb_app_bar.dart';
import 'package:chicken_farm/core/utils/toast.dart';

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

  @override
  State<BatchCreatePage> createState() => _BatchCreatePageState();
}

class _BatchCreatePageState extends State<BatchCreatePage> {
  final List<String> _rfids = [];
  String? _batchNum;
  String? _familyId;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: const VberAppBar(title: '个体绑定', showLeftButton: true),
      body: Padding(
        padding: const EdgeInsets.all(16.0),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            // 批次选择
            _buildBatchInput(),
            const SizedBox(height: 10),
            // 家系号选择
            _buildFamilyInput(),
            const SizedBox(height: 20),
            // 电子编号区域
            _buildRfidSection(),
            const SizedBox(height: 20),
            // 提交按钮
            SizedBox(
              width: double.infinity,
              child: ElevatedButton(
                onPressed:
                    _rfids.isNotEmpty && _batchNum != null && _familyId != null
                    ? _handleSubmit
                    : null,
                style: ElevatedButton.styleFrom(
                  backgroundColor:
                      _rfids.isNotEmpty &&
                          _batchNum != null &&
                          _familyId != null
                      ? Colors.blue
                      : Colors.grey,
                  foregroundColor: Colors.white,
                ),
                child: const Text('提交'),
              ),
            ),
            const SizedBox(height: 20),
            // 已识别的电子编号列表
            if (_rfids.isNotEmpty) ...[
              Row(
                mainAxisAlignment: MainAxisAlignment.spaceBetween,
                children: [
                  const Text(
                    '已识别的电子编号',
                    style: TextStyle(fontWeight: FontWeight.bold),
                  ),
                  IconButton(
                    icon: const Icon(Icons.clear, size: 18),
                    onPressed: _clearRfids,
                    tooltip: '清空编号',
                  ),
                ],
              ),
              const SizedBox(height: 10),
              Expanded(
                child: Container(
                  padding: const EdgeInsets.all(10),
                  decoration: BoxDecoration(
                    border: Border.all(color: Colors.grey),
                    borderRadius: BorderRadius.circular(8),
                  ),
                  child: ListView.builder(
                    padding: EdgeInsets.zero,
                    itemCount: _rfids.length,
                    itemBuilder: (context, index) {
                      return ListTile(
                        visualDensity: VisualDensity.compact,
                        contentPadding: const EdgeInsets.symmetric(
                          horizontal: 2,
                          vertical: 0,
                        ),
                        title: Text(_rfids[index]),
                        trailing: IconButton(
                          icon: const Icon(
                            Icons.delete,
                            size: 18,
                            color: Colors.red,
                          ),
                          onPressed: () => _removeRfid(index),
                        ),
                      );
                    },
                  ),
                ),
              ),
            ],
            const SizedBox(height: 20),
          ],
        ),
      ),
    );
  }

  Widget _buildBatchInput() {
    if (AppConfig.isOffline) {
      // 离线模式下使用文本输入框
      return Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          const Text('批次号', style: TextStyle(fontWeight: FontWeight.bold)),
          const SizedBox(height: 10),
          Container(
            padding: const EdgeInsets.fromLTRB(16, 2, 16, 2),
            decoration: BoxDecoration(
              border: Border.all(color: Colors.grey),
              borderRadius: BorderRadius.circular(8),
            ),
            child: TextField(
              decoration: const InputDecoration(
                hintText: '请输入批次号',
                border: InputBorder.none,
              ),
              onChanged: (value) {
                setState(() {
                  _batchNum = value.isNotEmpty ? value : null;
                });
              },
            ),
          ),
        ],
      );
    } else {
      // 在线模式下使用原来的搜索选择器
      return _buildBatchSearchSelect();
    }
  }

  Widget _buildFamilyInput() {
    if (AppConfig.isOffline) {
      // 离线模式下使用文本输入框
      return Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          const Text('家系号', style: TextStyle(fontWeight: FontWeight.bold)),
          const SizedBox(height: 10),
          Container(
            padding: const EdgeInsets.fromLTRB(16, 2, 16, 2),
            decoration: BoxDecoration(
              border: Border.all(color: Colors.grey),
              borderRadius: BorderRadius.circular(8),
            ),
            child: TextField(
              decoration: const InputDecoration(
                hintText: '请输入家系号',
                border: InputBorder.none,
              ),
              onChanged: (value) {
                setState(() {
                  _familyId = value.isNotEmpty ? value : null;
                });
              },
            ),
          ),
        ],
      );
    } else {
      // 在线模式下使用原来的搜索选择器
      return _buildFamilySearchSelect();
    }
  }

  Widget _buildBatchSearchSelect() {
    return Column(
      crossAxisAlignment: CrossAxisAlignment.start,
      children: [
        const Text('选择批次', style: TextStyle(fontWeight: FontWeight.bold)),
        const SizedBox(height: 10),
        Container(
          padding: const EdgeInsets.fromLTRB(16, 2, 16, 2),
          decoration: BoxDecoration(
            border: Border.all(color: Colors.grey),
            borderRadius: BorderRadius.circular(8),
          ),
          child: VberSearchSelect<BatchModel>(
            searchApi: ({required dynamic queryParams}) async {
              final result = await apis.breeding.queryApi.queryPageBatchs(
                queryParams,
              );
              return {'rows': result.rows, 'total': result.total};
            },
            converter: (BatchModel data) {
              return SelectOption(
                label: '${data.batchNum}(${data.batchName})',
                value: data.batchNum,
                extra: data,
              );
            },
            value: _batchNum,
            hint: '批次号',
            onChanged: (String? value) {
              setState(() {
                _batchNum = value;
                // 当切换批次时，重置后续选项和数据
                _familyId = null;
              });

              // // 获取翅号数据
              // if (value != null) {
              //   // 使用Future.microtask确保在下一个微任务中加载数据，避免在构建过程中修改状态
              //   Future.microtask(() => _loadWingTags(value));
              // }
            },
            hideUnderline: true,
          ),
        ),
      ],
    );
  }

  Widget _buildFamilySearchSelect() {
    return Column(
      crossAxisAlignment: CrossAxisAlignment.start,
      children: [
        const Text('选择家系号', style: TextStyle(fontWeight: FontWeight.bold)),
        const SizedBox(height: 10),
        Container(
          padding: const EdgeInsets.fromLTRB(16, 2, 16, 2),
          decoration: BoxDecoration(
            border: Border.all(color: Colors.grey),
            borderRadius: BorderRadius.circular(8),
          ),
          child: VberSearchSelect<FamilyModel>(
            searchApi: ({required dynamic queryParams}) async {
              final result = await apis.breeding.queryApi.queryPageFamilys(
                queryParams,
              );
              return {'rows': result.rows, 'total': result.total};
            },
            converter: (FamilyModel data) {
              return SelectOption(
                label: data.familyNum,
                value: data.id.toString(),
                extra: data,
              );
            },
            value: _familyId,
            hint: '家系号',
            onChanged: (String? value) {
              setState(() {
                _familyId = value;
              });
            },
            hideUnderline: true,
          ),
        ),
      ],
    );
  }

  Widget _buildRfidSection() {
    return VberRfidField(
      rfids: _rfids,
      onRfidsScanned: (List<RfidModel> scannedRfids) {
        // 过滤出未存在的RFID
        final newRfids = scannedRfids
            .where((rfid) => !_rfids.contains(rfid.uid))
            .toList();

        if (newRfids.isNotEmpty) {
          setState(() {
            // 将新的RFID添加到列表中
            for (var rfid in newRfids) {
              _rfids.insert(0, rfid.uid);
            }
          });
          ToastUtil.success("新增 ${newRfids.length} 枚电子编号");
          // if (newRfids.length == scannedRfids.length) {
          //   // 全都是新添加的
          //   ToastUtil.success("成功添加 ${newRfids.length} 枚新的电子编号");
          // } else {
          //   // 部分是重复的
          //   ToastUtil.info("新增 ${newRfids.length} 枚电子编号");
          //   // ，${scannedRfids.length - newRfids.length} 枚已存在
          // }
        } else {
          // 所有RFID都已存在
          ToastUtil.info("电子编号已存在");
        }
      },
      multiple: true,
      label: '电子编号',
      multiplePlaceholder: '未识别',
      multipleFormat: '已识别 %d 枚电子编号',
    );
  }

  // 移除指定索引的电子编号
  void _removeRfid(int index) {
    setState(() {
      _rfids.removeAt(index);
    });
  }

  // 清空所有已识别的电子编号
  void _clearRfids() {
    setState(() {
      _rfids.clear();
    });
    ToastUtil.info('已清空所有电子编号');
  }

  // 提交数据
  void _handleSubmit() {
    final data = _rfids.map((rfid) {
      return {
        'rfid': rfid,
        'batchNum': _batchNum,
        'familyId': _familyId,
        'date': DateTimeUtil.format(DateTime.now()),
      };
    }).toList();
    apis.breeding.submitApi
        .bindChicken(data)
        .then((_) {
          if (mounted) {
            ScaffoldMessenger.of(context).showSnackBar(
              const SnackBar(
                content: Text('批量绑定个体成功'),
                backgroundColor: Colors.green,
              ),
            );
            // 提交后重置表单
            setState(() {
              _rfids.clear();
            });
          }
        })
        .catchError((err) {
          ToastUtil.error('批量绑定个体失败');
          if (mounted && err != null) {
            String errorMessage = err.toString();
            if (err is Exception) {
              errorMessage = err.toString();
            }
            logger.e(errorMessage);
            ScaffoldMessenger.of(context).showSnackBar(
              SnackBar(
                content: Text(errorMessage),
                backgroundColor: Colors.red,
              ),
            );
          }
        });
  }
}