import 'package:dating_touchme_app/extension/ex_widget.dart';
import 'package:flutter/material.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';

import '../../generated/assets.dart';
import '../../config/emoji_config.dart';
import '../emoji_panel.dart';
import 'more_options_view.dart';
import 'voice_input_view.dart';

class ChatInputBar extends StatefulWidget {
  final ValueChanged<String> onSendMessage;
  final ValueChanged<List<String>>? onImageSelected;
  final Function(String filePath, int seconds)? onVoiceRecorded;
  final VoidCallback? onVoiceCall; // 语音通话回调
  final VoidCallback? onVideoCall; // 视频通话回调
  final VoidCallback? onGiftTap; // 礼物按钮回调

  const ChatInputBar({
    required this.onSendMessage,
    this.onImageSelected,
    this.onVoiceRecorded,
    this.onVoiceCall,
    this.onVideoCall,
    this.onGiftTap,
    super.key,
  });

  @override
  State<ChatInputBar> createState() => _ChatInputBarState();
}

class _ChatInputBarState extends State<ChatInputBar> {
  final TextEditingController _textController = TextEditingController();
  final FocusNode _focusNode = FocusNode();
  bool _isMoreOptionsVisible = false;
  bool _isVoiceVisible = false;
  bool _isEmojiVisible = false;

  void _handleSendMessage() {
    if (_textController.text.isNotEmpty) {
      widget.onSendMessage(_textController.text);
      _textController.clear();
    }
  }

  // 切换更多选项的显示状态
  void _toggleMoreOptions() {
    print('📷 [ChatInputBar] 更多选项（图片）按钮被点击');
    setState(() {
      _isMoreOptionsVisible = !_isMoreOptionsVisible;
      if (_isMoreOptionsVisible) {
        _isVoiceVisible = false;
        _isEmojiVisible = false;
      }
      // 收起键盘
      FocusManager.instance.primaryFocus?.unfocus();
    });
  }

  void _handleImageTap(List<String> imagePaths) {
    // 将图片路径列表传递给父组件
    if (widget.onImageSelected != null) {
      widget.onImageSelected!(imagePaths);
    }
  }

  void _handleCameraTap(String imagePath) {
    // 将单个图片路径包装成列表传递给父组件
    if (widget.onImageSelected != null) {
      widget.onImageSelected!([imagePath]);
    }
  }

  void _toggleVoiceOptions() {
    setState(() {
      _isVoiceVisible = !_isVoiceVisible;
      if (_isVoiceVisible) {
        _isMoreOptionsVisible = false;
        _isEmojiVisible = false;
      }
      FocusManager.instance.primaryFocus?.unfocus();
    });
  }

  void _toggleEmojiPanel() {
    setState(() {
      _isEmojiVisible = !_isEmojiVisible;
      if (_isEmojiVisible) {
        _isMoreOptionsVisible = false;
        _isVoiceVisible = false;
      }
      FocusManager.instance.primaryFocus?.unfocus();
    });
  }

  // 关闭所有控制面板
  void _closeAllPanels() {
    if (!mounted) return;
    if (_isMoreOptionsVisible || _isVoiceVisible || _isEmojiVisible) {
      setState(() {
        _isMoreOptionsVisible = false;
        _isVoiceVisible = false;
        _isEmojiVisible = false;
      });
    }
  }

  @override
  void initState() {
    super.initState();
    // 监听输入框焦点变化
    _focusNode.addListener(() {
      if (_focusNode.hasFocus && mounted) {
        // 输入框获得焦点（键盘弹起），关闭所有控制面板
        _closeAllPanels();
      }
    });
  }

  @override
  void dispose() {
    _focusNode.dispose();
    _textController.dispose();
    super.dispose();
  }

  void _handleEmojiSelected(EmojiItem emoji) {
    // 将表情添加到输入框
    final currentText = _textController.text;
    final emojiText = '[emoji:${emoji.id}]';
    _textController.text = currentText + emojiText;
    // 将光标移到末尾
    _textController.selection = TextSelection.fromPosition(
      TextPosition(offset: _textController.text.length),
    );
    setState(() {}); // 刷新显示
  }

  /// 构建输入框内容（文本+表情）
  List<Widget> _buildInputContentWidgets() {
    final List<Widget> widgets = [];
    final text = _textController.text;
    final RegExp emojiRegex = RegExp(r'\[emoji:(\d+)\]');

    int lastMatchEnd = 0;
    final matches = emojiRegex.allMatches(text);

    for (final match in matches) {
      // 添加表情之前的文本
      if (match.start > lastMatchEnd) {
        final textPart = text.substring(lastMatchEnd, match.start);
        widgets.add(
          Text(
            textPart,
            style: TextStyle(fontSize: 14.sp, color: Colors.black),
          ),
        );
      }

      // 添加表情图片
      final emojiId = match.group(1);
      if (emojiId != null) {
        final emoji = EmojiConfig.getEmojiById(emojiId);
        if (emoji != null) {
          widgets.add(
            Padding(
              padding: EdgeInsets.symmetric(horizontal: 2.w),
              child: Image.asset(
                emoji.path,
                width: 24.w,
                height: 24.w,
                fit: BoxFit.contain,
              ),
            ),
          );
        }
      }

      lastMatchEnd = match.end;
    }

    // 添加剩余的文本
    if (lastMatchEnd < text.length) {
      final textPart = text.substring(lastMatchEnd);
      widgets.add(
        Text(
          textPart,
          style: TextStyle(fontSize: 14.sp, color: Colors.black),
        ),
      );
    }

    return widgets;
  }

  @override
  Widget build(BuildContext context) {
    return Column(
      mainAxisSize: MainAxisSize.min,
      children: [
        Container(
          padding: EdgeInsets.only(left: 16.w, right: 16.w, bottom: 16.w),
          color: Colors.white,
          child: Column(
            children: [
              SizedBox(height: 10.h),
              Row(
                children: [
                  Expanded(
                    child: Container(
                      height: 40.h,
                      decoration: BoxDecoration(
                        color: Color(0xffF5F5F5),
                        borderRadius: BorderRadius.circular(5.h),
                      ),
                      padding: EdgeInsets.symmetric(horizontal: 16.w),
                      child: Stack(
                        children: [
                          // 真实的输入框
                          TextField(
                            controller: _textController,
                            focusNode: _focusNode,
                            decoration: InputDecoration(
                              border: InputBorder.none,
                              hintText: "请输入聊天内容~",
                              hintStyle: TextStyle(
                                fontSize: 14.sp,
                                color: Colors.grey,
                              ),
                            ),
                            style: TextStyle(
                              fontSize: 14.sp,
                              color: _textController.text.contains('[emoji:')
                                  ? Colors.transparent
                                  : Colors.black,
                            ),
                            onChanged: (value) {
                              setState(() {}); // 刷新以更新表情显示
                            },
                          ),
                          // 表情显示层
                          if (_textController.text.contains('[emoji:'))
                            Positioned.fill(
                              child: IgnorePointer(
                                child: Align(
                                  alignment: Alignment.centerLeft,
                                  child: SingleChildScrollView(
                                    scrollDirection: Axis.horizontal,
                                    child: Row(
                                      children: _buildInputContentWidgets(),
                                    ),
                                  ),
                                ),
                              ),
                            ),
                        ],
                      ),
                    ),
                  ),
                  SizedBox(width: 12.w),
                  // 发送按钮
                  Container(
                    padding: EdgeInsets.symmetric(
                      horizontal: 16.w,
                      vertical: 8.h,
                    ),
                    decoration: BoxDecoration(
                      color: Color.fromRGBO(117, 98, 249, 1),
                      borderRadius: BorderRadius.circular(5.h),
                    ),
                    child: Text(
                      "发送",
                      style: TextStyle(
                        fontSize: 14.sp,
                        color: Colors.white,
                        fontWeight: FontWeight.w500,
                      ),
                    ),
                  ).onTap(_handleSendMessage),
                ],
              ),
              SizedBox(height: 12.h),
              // 底部工具栏
              Row(
                mainAxisAlignment: MainAxisAlignment.spaceAround,
                children: [
                  // 语音消息按钮
                  Image.asset(
                    Assets.imagesAudio,
                    width: 24.w,
                    height: 24.w,
                  ).onTap(_toggleVoiceOptions),
                  // 语音通话按钮（暂时注释）
                  // Image.asset(
                  //   Assets.imagesSendCall,
                  //   width: 24.w,
                  //   height: 24.w,
                  // ).onTap(() {
                  //   widget.onVoiceCall?.call();
                  // }),
                  // 视频通话按钮（暂时注释）
                  // Image.asset(
                  //   Assets.imagesSendVideoCall,
                  //   width: 24.w,
                  //   height: 24.w,
                  // ).onTap(() {
                  //   widget.onVideoCall?.call();
                  // }),
                  // 礼物按钮
                  // Image.asset(Assets.imagesGift, width: 24.w, height: 24.w).onTap(() {
                  //   widget.onGiftTap?.call();
                  // }),
                  // 表情按钮
                  Image.asset(Assets.imagesEmoji, width: 24.w, height: 24.w).onTap(_toggleEmojiPanel),
                  // 更多按钮
                  Image.asset(
                    Assets.imagesAdd,
                    width: 24.w,
                    height: 24.w,
                  ).onTap(_toggleMoreOptions),
                ],
              ),
            ],
          ),
        ),
        // 更多选项展开视图（支持图片）
        MoreOptionsView(
          isVisible: _isMoreOptionsVisible,
          onImageSelected: _handleImageTap,
          onCameraSelected: _handleCameraTap,
        ),
        // 语音输入展开视图（与 MoreOptionsView 相同的展开方式）
        VoiceInputView(
          isVisible: _isVoiceVisible,
          onVoiceRecorded: widget.onVoiceRecorded,
        ),
        // 表情面板
        EmojiPanel(
          isVisible: _isEmojiVisible,
          onEmojiSelected: _handleEmojiSelected,
        ),
      ],
    );
  }
}