import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter_easyrefresh/easy_refresh.dart';
import 'package:ftrecruiter/comm/utils/dark_theme_util.dart';

class CustomFootView extends Footer {
  /// Key
  final Key? key;

  final LinkFooterNotifier linkNotifier = LinkFooterNotifier();

  CustomFootView({
    this.key,
    bool enableHapticFeedback = true,
    bool enableInfiniteLoad = true,
    bool overScroll = false,
  }) : super(
          extent: 50.0,
          triggerDistance: 50.0,
          float: false,
          enableHapticFeedback: enableHapticFeedback,
          enableInfiniteLoad: enableInfiniteLoad,
          overScroll: overScroll,
        );

  @override
  Widget contentBuilder(
      BuildContext context,
      LoadMode loadState,
      double pulledExtent,
      double loadTriggerPullDistance,
      double loadIndicatorExtent,
      AxisDirection axisDirection,
      bool float,
      Duration? completeDuration,
      bool enableInfiniteLoad,
      bool success,
      bool noMore) {
    // 不能为水平方向
    assert(axisDirection == AxisDirection.down || axisDirection == AxisDirection.up, 'Widget cannot be horizontal');
    linkNotifier.contentBuilder(context, loadState, pulledExtent, loadTriggerPullDistance, loadIndicatorExtent,
        axisDirection, float, completeDuration, enableInfiniteLoad, success, noMore);
    return CustomMoreWidget(
      key: key,
      linkNotifier: linkNotifier,
    );
  }
}

//LoadMore-底部加载更多的布局
class CustomMoreWidget extends StatefulWidget {
  final LinkFooterNotifier linkNotifier;

  const CustomMoreWidget({Key? key, required this.linkNotifier}) : super(key: key);

  @override
  CustomFooterWidgetState createState() {
    return CustomFooterWidgetState();
  }
}

class CustomFooterWidgetState extends State<CustomMoreWidget> {
  LoadMode get _refreshState => widget.linkNotifier.loadState;

  bool get _noMore => widget.linkNotifier.noMore;

  @override
  Widget build(BuildContext context) {
    return Container(
      height: 50,
      alignment:Alignment.center ,
      padding: const EdgeInsets.symmetric(vertical: 10.0),
      child: Row(
        mainAxisAlignment: MainAxisAlignment.center,
        children: <Widget>[
          if (!_noMore) const CupertinoActivityIndicator(),
          if (!_noMore)
            const SizedBox(
              width: 5,
            ),

          // 只有一页的时候，就不显示FooterView了
          Text(!_noMore ? '正在加载中...' : '没有了呦~',
              style: TextStyle(
                  fontSize: 14, color: DarkThemeUtil.multiColors(const Color(0x8A000000), darkColor: Colors.white54))),
        ],
      ),
    );
  }
}