PiliPlus/lib/pages/live_room/superchat/superchat_card.dart

import 'dart:async';

import 'package:PiliPlus/common/widgets/flutter/selectable_text/selection_area.dart';
import 'package:PiliPlus/common/widgets/image/network_img_layer.dart';
import 'package:PiliPlus/models/common/image_type.dart';
import 'package:PiliPlus/models_new/live/live_superchat/item.dart';
import 'package:PiliPlus/pages/member/widget/medal_widget.dart';
import 'package:PiliPlus/utils/image_utils.dart';
import 'package:PiliPlus/utils/page_utils.dart';
import 'package:PiliPlus/utils/platform_utils.dart';
import 'package:PiliPlus/utils/utils.dart';
import 'package:cached_network_image/cached_network_image.dart';
import 'package:flutter/foundation.dart' show kDebugMode;
import 'package:flutter/material.dart' hide SelectionArea;
import 'package:get/get.dart';

class SuperChatCard extends StatefulWidget {
  const SuperChatCard({
    super.key,
    required this.item,
    this.onRemove,
    this.persistentSC = false,
    required this.onReport,
  });

  final SuperChatItem item;
  final VoidCallback? onRemove;
  final bool persistentSC;
  final VoidCallback onReport;

  @override
  State<SuperChatCard> createState() => _SuperChatCardState();
}

class _SuperChatCardState extends State<SuperChatCard> {
  Timer? _timer;
  RxInt? _remains;

  @override
  void initState() {
    super.initState();
    if (!widget.persistentSC) {
      if (widget.item.expired) {
        _remove();
        return;
      }
      final now = DateTime.now().millisecondsSinceEpoch ~/ 1000;
      final offset = widget.item.endTime - now;
      if (offset > 0) {
        _remains = offset.obs;
        _startTimer();
      } else {
        _remove();
      }
    }
  }

  void _remove() {
    WidgetsBinding.instance.addPostFrameCallback((_) {
      Future.delayed(const Duration(seconds: 1), _onRemove);
    });
  }

  void _onRemove() {
    widget
      ..item.expired = true
      ..onRemove?.call();
  }

  void _callback(_) {
    final remains = _remains!.value;
    if (remains > 0) {
      _remains!.value = remains - 1;
    } else {
      _cancelTimer();
      _onRemove();
    }
  }

  void _startTimer() {
    _timer = Timer.periodic(const Duration(seconds: 1), _callback);
  }

  void _cancelTimer() {
    _timer?.cancel();
    _timer = null;
  }

  @override
  void dispose() {
    _cancelTimer();
    super.dispose();
  }

  void _showMenu(Offset offset, SuperChatItem item) {
    final flag = _timer != null;
    if (flag) {
      _cancelTimer();
    }
    showMenu(
      context: context,
      position: PageUtils.menuPosition(offset),
      items: [
        PopupMenuItem(
          height: 38,
          onTap: () => Get.toNamed('/member?mid=${item.uid}'),
          child: Text(
            '访问: ${item.userInfo.uname}',
            style: const TextStyle(fontSize: 13),
          ),
        ),
        PopupMenuItem(
          height: 38,
          onTap: () => Utils.copyText(Utils.jsonEncoder.convert(item.toJson())),
          child: const Text(
            '复制 SC 信息',
            style: TextStyle(fontSize: 13),
          ),
        ),
        PopupMenuItem(
          height: 38,
          onTap: widget.onReport,
          child: const Text(
            '举报',
            style: TextStyle(fontSize: 13),
          ),
        ),
      ],
    ).whenComplete(() {
      if (flag && mounted) {
        _startTimer();
      }
    });
  }

  @override
  Widget build(BuildContext context) {
    final item = widget.item;
    final bottomColor = Utils.parseColor(item.backgroundBottomColor);
    final border = BorderSide(color: bottomColor);
    void showMenu(TapUpDetails e) => _showMenu(e.globalPosition, item);

    Widget name = Text(
      item.userInfo.uname,
      maxLines: 1,
      overflow: .ellipsis,
      style: TextStyle(
        color: Utils.parseColor(item.userInfo.nameColor),
      ),
    );
    if (item.medalInfo case final medal?) {
      try {
        name = Row(
          spacing: 5,
          children: [
            MedalWidget.fromMedalInfo(
              medal: medal,
              padding: MedalWidget.mediumPadding,
            ),
            Flexible(child: name),
          ],
        );
      } catch (e, s) {
        if (kDebugMode) {
          Utils.reportError(e, s);
        }
      }
    }

    return Column(
      crossAxisAlignment: CrossAxisAlignment.stretch,
      children: [
        GestureDetector(
          onTapUp: showMenu,
          onSecondaryTapUp: PlatformUtils.isDesktop ? showMenu : null,
          child: Container(
            decoration: BoxDecoration(
              borderRadius: const .vertical(top: .circular(8)),
              color: Utils.parseColor(item.backgroundColor),
              border: Border(top: border, left: border, right: border),
              image: item.backgroundImage == null
                  ? null
                  : DecorationImage(
                      alignment: .topRight,
                      image: CachedNetworkImageProvider(
                        ImageUtils.safeThumbnailUrl(item.backgroundImage),
                      ),
                    ),
            ),
            padding: const EdgeInsets.all(8),
            child: Row(
              spacing: 12,
              children: [
                NetworkImgLayer(
                  src: item.userInfo.face,
                  width: 45,
                  height: 45,
                  type: ImageType.avatar,
                ),
                Expanded(
                  child: Column(
                    mainAxisSize: .min,
                    crossAxisAlignment: .start,
                    children: [
                      name,
                      Text(
                        "￥${item.price}",
                        style: TextStyle(
                          color: Utils.parseColor(item.backgroundPriceColor),
                        ),
                      ),
                    ],
                  ),
                ),
                if (_remains != null)
                  Obx(
                    () => Text(
                      _remains.toString(),
                      style: const TextStyle(
                        fontSize: 14,
                        color: Colors.grey,
                      ),
                    ),
                  ),
              ],
            ),
          ),
        ),
        Container(
          decoration: BoxDecoration(
            borderRadius: const .vertical(bottom: .circular(8)),
            color: bottomColor,
          ),
          padding: const EdgeInsets.all(8),
          child: SelectionArea(
            child: Text(
              item.message,
              style: TextStyle(
                color: Utils.parseColor(item.messageFontColor),
                decoration: widget.persistentSC && item.deleted
                    ? .lineThrough
                    : null,
                decorationThickness: 1.5,
                decorationStyle: .double,
                decorationColor: Colors.white,
              ),
            ),
          ),
        ),
      ],
    );
  }
}