import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:zy_wms_pda/api/api_service.dart';

import '../../common/custom_search_bar.dart';
import '../../common/empty_count.dart';
import '../../common/mat_tag_card.dart';
import '../../common/my_sliver_persistent_header_delegate.dart';
import '../../common/tag_card.dart';

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

  @override
  State<MatSelectPage> createState() => _MatSelectPageState();
}

class _MatSelectPageState extends State<MatSelectPage> {
  var items = [];
  var isTag = true;

  @override
  void initState() {
    super.initState();
    _getTagList(1);
  }

  void _getTagList(id) async {
    _clickItem(id);
  }

  void _clickItem(id) async {
    var tagList = await ApiService.tagList(id);
    if (tagList['data'] != null && tagList['data'].length > 0) {
      setState(() {
        isTag = true;
        items = tagList['data'];
      });
    } else {
      var matList = await ApiService.matList(id);
      if (matList['data'] != null && matList['data']['records'].length > 0) {
        // print('matList: ${matList['data']['records'].length}');
        setState(() {
          isTag = false;
          items = matList['data']['records'];
          print('items');
        });
      }
    }
  }


  void deleteItem(int index) {
    setState(() {
      // 删除指定索引的对象
      items.removeAt(index);
    });
  }
  Widget listItem({
    required  item
  }) {
    if (isTag) {
      return TagCard(name: item['name'], parentName: item['parentName'], tagId: item['id'],onTagTap: () {
        _clickItem(item['id']);
      });
    } else {
      return MatTagCard(
        matnr: item['matnr'],
        maktx: item['maktx'],
        specs: item['specs'],
        tagText: item['matnr'],
        onTagTap: () {
          Get.back(result: item['matnr']);
        }
      );
    }
  }
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('选择物料'),
      ),
      body: CustomScrollView(
        slivers: [
          SliverPersistentHeader(
            pinned: true, // 设置为true，表示吸顶效果
            delegate: MySliverPersistentHeaderDelegate(
                minHeight: 60, // 最小高度
                maxHeight: 60, // 最大高度
                child: CustomSearchBar(onTap: () {},)
            ),
          ),
          SliverPersistentHeader(
            pinned: true, // 设置为true，表示吸顶效果
            delegate: MySliverPersistentHeaderDelegate(
                minHeight: 60, // 最小高度
                maxHeight: 60, // 最大高度
                child: Container(
                  padding:EdgeInsets.only(left: 10, right: 10, top: 10, bottom: 10),
                  decoration: BoxDecoration(
                    color: Colors.white,
                  ),
                  child: ElevatedButton.icon(
                    icon: Icon(Icons.reply),
                    label: Text("返回"),
                    onPressed: (){},
                  ),

                )
            ),
          ),
          SliverList(
            delegate: items.isEmpty
                ? SliverChildBuilderDelegate(
                  (context, index) {
                    print('Building item at index: $index'); // 添加调试信息
                    return EmptyCount();
                  },
                  childCount: 1, // 项目数量
                )
                : SliverChildBuilderDelegate(
                  (context, index) {
                var item = items[index];
                return listItem(item: item);
              },
              childCount: items.length, // 项目数量
            ),
          ),

        ],
      ),
    );
  }
}