import 'package:flutter/material.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:one_key/widgets/MyDivider.dart';
import 'package:one_key/widgets/h_empty_view.dart';

import '../../res/colors.dart';
import '../../utils/screen_util.dart';
import '../../utils/utils.dart';
import '../../widgets/system_app_bar.dart';
import '../../widgets/v_empty_view.dart';

/**
 * 
 * 调菜
 */
class FeastMenuPage extends StatefulWidget {
  FeastMenuPage({Key key}) : super(key: key);

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

class _FeastMenuPageState extends State<FeastMenuPage> {
  ScrollController controller = ScrollController();
  @override
  void initState() {
    // TODO: implement initState
    super.initState();

    Utils.changeStatusColor(color: MyColours.color_438E93);
  }

  Widget _callButton(
      {GestureTapCallback onPress,
      content,
      hasLeftBorder = true,
      isSelect = false}) {
    return InkWell(
      onTap: onPress,
      child: Container(
        height: h(48),
        decoration: BoxDecoration(
            color: isSelect ? MyColours.color_438E93 : MyColours.color_ffffff,
            border: Border(
                bottom: BorderSide(
                    color: MyColours.color_438E93,
                    width: ScreenUtil().setWidth(2)),
                top: BorderSide(
                    color: MyColours.color_438E93,
                    width: ScreenUtil().setWidth(2)),
                left: hasLeftBorder
                    ? BorderSide(
                        color: MyColours.color_438E93,
                        width: ScreenUtil().setWidth(2))
                    : BorderSide.none,
                right: BorderSide(
                    color: MyColours.color_438E93,
                    width: ScreenUtil().setWidth(2)))),
        child: Align(
          alignment: Alignment.center,
          child: Text(
            content,
            style: TextStyle(
                color:
                    isSelect ? MyColours.color_F6F6F6 : MyColours.color_438E93,
                fontSize: ScreenUtil().setSp(36)),
          ),
        ),
      ),
    );
  }

  // 根据index展示不同的widget
  Widget buildItemWidget(BuildContext context, int index) {
    return _itemBuildWidget(context, index);
  }

  ///输入框
  Widget _textfield(String hintText, TextEditingController editingController,
      FocusNode focusNode,
      {TextInputType inputType = TextInputType.text, double width}) {
    return Container(
      width: width,
      padding: EdgeInsets.symmetric(horizontal: w(6)),
      decoration: BoxDecoration(
          border: Border.all(width: h(1), color: MyColours.color_DBDBDB)),
      child: Container(
          // height: ScreenUtil().setHeight(120),
          height: ScreenUtil().setWidth(64),
          child: TextField(
            controller: editingController,
            // textAlign: TextAlign.right,
            // textAlignVertical: TextAlignVertical.bottom,
            maxLines: 1,
            inputFormatters: [],

            // //光标颜色
            // cursorColor:
            //     widget.isSelect ? Colors.white : MyColours.color_199095,
            //输入文本的样式
            style: TextStyle(
              fontSize: ScreenUtil().setSp(32),
            ),
            focusNode: focusNode,
            decoration: InputDecoration(
              border: OutlineInputBorder(borderSide: BorderSide.none),
              hintText: hintText,
              hintStyle: TextStyle(
                color: hintText == '菜名' || hintText == '数量'
                    ? MyColours.color_999999
                    : MyColours.color_515151,
                fontSize: ScreenUtil().setSp(24),
              ),
              contentPadding: EdgeInsets.zero,
            ),
            onChanged: (value) {},
            onEditingComplete: () {
              FocusScope.of(context).requestFocus(FocusNode()); //点击空白处隐藏键盘
            },
            keyboardType: inputType,
          )),
    );
  }

  Widget _itemBuildWidget(BuildContext context, int index) {
    return ListView.builder(
      shrinkWrap: true,
      controller: controller,
      padding: EdgeInsets.only(right: w(12)),
      itemCount: _getItemListCount(),
      itemBuilder: (BuildContext context, int index) {
        if (index < 1) {
          return _buildHeaderWidget(context, index);
        } else {
          int itemIndex = index - 1;

          return Container(
            margin: new EdgeInsets.only(bottom: h(12)),
            color: MyColours.color_ffffff,
            child: new GestureDetector(
              onTap: () {
                // _gotoProjectDetail(projectModelList[index]);
              },
              child: new Container(
                  color: MyColours.color_ffffff,
                  child: Row(
                    children: [
                      Container(
                          width: h(90),
                          child: Text(
                            '鱼香肉丝',
                            overflow: TextOverflow.ellipsis,
                            maxLines: 10,
                            style: TextStyle(
                                color: MyColours.color_515151,
                                fontSize: ScreenUtil().setSp(32)),
                          )),
                      HEmptyView(16),
                      Container(
                          width: h(36),
                          child: Text(
                            '10份',
                            overflow: TextOverflow.ellipsis,
                            maxLines: 1,
                            style: TextStyle(
                                color: MyColours.color_515151,
                                fontSize: ScreenUtil().setSp(32)),
                          )),
                      HEmptyView(16),
                      index == 1
                          ? Text(
                              '不可调菜',
                              overflow: TextOverflow.ellipsis,
                              maxLines: 1,
                              style: TextStyle(
                                  color: MyColours.color_E34D59,
                                  fontSize: ScreenUtil().setSp(32)),
                            )
                          : Expanded(
                              child: Row(
                              children: [
                                Text(
                                  '调为',
                                  overflow: TextOverflow.ellipsis,
                                  maxLines: 1,
                                  style: TextStyle(
                                      color: MyColours.color_438E93,
                                      fontSize: ScreenUtil().setSp(32)),
                                ),
                                HEmptyView(16),
                                Expanded(child: _textfield('菜名', null, null)),
                                HEmptyView(16),
                                _textfield('数量', null, null, width: w(56))
                              ],
                            ))
                    ],
                  )),
            ),
          );
        }
      },
    );
  }

  // 总count数
  int _getItemListCount() {
    return 3 + 1;
  }

  // header内容
  Widget _buildHeaderWidget(BuildContext context, int index) {
    return Padding(
        padding: EdgeInsets.only(bottom: h(12)),
        child: Text(
          '热菜',
          style: TextStyle(
              color: MyColours.color_515151,
              fontSize: font(16),
              fontWeight: FontWeight.bold),
        ));
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
        backgroundColor: MyColours.color_ffffff,
        appBar: SystemAppBar(
          '调菜',
          needWhite: true,
          bgColor: MyColours.color_438E93,
          titleColor: MyColours.color_F6F6F6,
          onTap: () {
            Navigator.pop(context);
          },
        ),
        body: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            Expanded(
                child: SingleChildScrollView(
              controller: controller,
              child: Padding(
                  padding: EdgeInsets.only(left: w(16)),
                  child: Column(
                    crossAxisAlignment: CrossAxisAlignment.start,
                    children: [
                      VEmptyView(64),
                      Text(
                        '1299套餐',
                        style: TextStyle(
                            color: MyColours.color_E6000000,
                            fontSize: font(16)),
                      ),
                      VEmptyView(24),
                      MyDivider(
                        double.infinity,
                        h(1),
                        color: MyColours.color_E7E7E7,
                      ),
                      VEmptyView(64),
                      ListView.builder(
                        shrinkWrap: true,
                        controller: controller,
                        padding: EdgeInsets.only(right: w(12)),
                        itemCount: 10,
                        itemBuilder: (BuildContext context, int index) {
                          return buildItemWidget(context, index);
                        },
                      )
                    ],
                  )),
            )),
            Row(
              children: [
                Expanded(
                    child: _callButton(
                        onPress: () {
                          Navigator.pop(context);
                        },
                        content: '返回',
                        hasLeftBorder: true,
                        isSelect: false)),
                Expanded(
                    child: _callButton(
                        onPress: () {},
                        content: '保存并返回',
                        hasLeftBorder: true,
                        isSelect: true))
              ],
            )
          ],
        ));
  }
}