tongxunruanjian/mobile/lib/screens/new_friends_screen.dart

import 'package:flutter/material.dart';
import 'package:flutter_openim_sdk/flutter_openim_sdk.dart';

import '../theme.dart';
import '../widgets/avatar.dart';

/// 「新的同事」：收到的好友申请列表，可接受 / 拒绝
class NewFriendsScreen extends StatefulWidget {
  const NewFriendsScreen({super.key});

  @override
  State<NewFriendsScreen> createState() => _NewFriendsScreenState();
}

class _NewFriendsScreenState extends State<NewFriendsScreen> {
  List<FriendApplicationInfo> _list = [];
  bool _loading = true;
  bool _failed = false;

  @override
  void initState() {
    super.initState();
    _load();
  }

  Future<void> _load() async {
    try {
      final list = await OpenIM.iMManager.friendshipManager.getFriendApplicationListAsRecipient();
      if (!mounted) return;
      setState(() {
        _list = list;
        _loading = false;
        _failed = false;
      });
    } catch (_) {
      if (!mounted) return;
      setState(() {
        _loading = false;
        _failed = true;
      });
    }
  }

  Future<void> _handle(FriendApplicationInfo a, bool accept) async {
    try {
      if (accept) {
        await OpenIM.iMManager.friendshipManager.acceptFriendApplication(userID: a.fromUserID ?? '', handleMsg: '');
      } else {
        await OpenIM.iMManager.friendshipManager.refuseFriendApplication(userID: a.fromUserID ?? '', handleMsg: '');
      }
      if (!mounted) return;
      setState(() => a.handleResult = accept ? 1 : -1);
      _toast(accept ? '已添加为同事' : '已拒绝');
    } catch (_) {
      _toast('操作失败，请检查网络后重试');
    }
  }

  void _toast(String text) {
    ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text(text), duration: const Duration(seconds: 2)));
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: const Text('新的同事')),
      body: _buildBody(),
    );
  }

  Widget _buildBody() {
    if (_loading) {
      return const Center(child: CircularProgressIndicator(color: AppColors.primary));
    }
    if (_failed) {
      return Center(
        child: Column(
          mainAxisSize: MainAxisSize.min,
          children: [
            const Text('申请列表没加载出来', style: TextStyle(fontSize: AppFont.body, color: AppColors.textPrimary)),
            const SizedBox(height: AppGap.x4),
            OutlinedButton(onPressed: _load, child: const Text('重试')),
          ],
        ),
      );
    }
    if (_list.isEmpty) {
      return const Center(
        child: Text('暂时没有新的申请', style: TextStyle(fontSize: AppFont.sub, color: AppColors.textSecondary)),
      );
    }
    return ListView.separated(
      itemCount: _list.length,
      separatorBuilder: (_, __) => const Divider(indent: 76),
      itemBuilder: (_, i) => _tile(_list[i]),
    );
  }

  Widget _tile(FriendApplicationInfo a) {
    final name = a.fromNickname?.isNotEmpty == true ? a.fromNickname! : (a.fromUserID ?? '');
    final isPending = a.handleResult == 0;
    final showButtons = isPending;
    // 窄屏（<360）时按钮组换到第二行右对齐，避免挤压姓名区
    final narrow = MediaQuery.sizeOf(context).width < 360;

    // 「接受/拒绝」按钮组：总宽固定 132，任何情况下不压缩、不换行
    final buttonGroup = Row(
      mainAxisSize: MainAxisSize.min,
      children: [
        FilledButton(
          onPressed: () => _handle(a, true),
          style: FilledButton.styleFrom(
            backgroundColor: AppColors.primary,
            minimumSize: const Size(60, 32),
            padding: const EdgeInsets.symmetric(horizontal: AppGap.x3),
          ),
          child: const Text('接受', style: TextStyle(fontSize: AppFont.sub)),
        ),
        const SizedBox(width: AppGap.x2),
        OutlinedButton(
          onPressed: () => _handle(a, false),
          style: OutlinedButton.styleFrom(
            minimumSize: const Size(60, 32),
            padding: const EdgeInsets.symmetric(horizontal: AppGap.x3),
          ),
          child: const Text('拒绝', style: TextStyle(fontSize: AppFont.sub)),
        ),
      ],
    );

    Widget statusText;
    if (a.handleResult == 1) {
      statusText = const Text('已添加', style: TextStyle(fontSize: AppFont.sub, color: AppColors.textSecondary));
    } else if (a.handleResult == -1) {
      statusText = const Text('已拒绝', style: TextStyle(fontSize: AppFont.sub, color: AppColors.textSecondary));
    } else {
      statusText = const Text('等待对方通过', style: TextStyle(fontSize: AppFont.sub, color: AppColors.textSecondary));
    }

    return Padding(
      padding: const EdgeInsets.symmetric(horizontal: AppGap.x4, vertical: AppGap.x3),
      child: Row(
        crossAxisAlignment: CrossAxisAlignment.center,
        children: [
          NameAvatar(name: name),
          const SizedBox(width: AppGap.x3),
          Expanded(
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              mainAxisSize: MainAxisSize.min,
              children: [
                Text(
                  name,
                  maxLines: 1,
                  overflow: TextOverflow.ellipsis,
                  style: const TextStyle(fontSize: AppFont.body, color: AppColors.textPrimary),
                ),
                if (a.reqMsg?.isNotEmpty == true) ...[
                  const SizedBox(height: AppGap.x1),
                  Text(
                    a.reqMsg!,
                    maxLines: 1,
                    overflow: TextOverflow.ellipsis,
                    style: const TextStyle(fontSize: AppFont.sub, color: AppColors.textSecondary),
                  ),
                ],
                if (narrow && showButtons) ...[
                  const SizedBox(height: AppGap.x2),
                  Align(alignment: Alignment.centerRight, child: buttonGroup),
                ],
              ],
            ),
          ),
          if (!narrow)
            SizedBox(width: 132, child: Align(alignment: Alignment.centerRight, child: showButtons ? buttonGroup : statusText)),
        ],
      ),
    );
  }
}