import 'package:flutter/material.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:im_flutter_sdk/im_flutter_sdk.dart';

import '../../../generated/assets.dart';

class VoiceItem extends StatelessWidget {
  final EMVoiceMessageBody voiceBody;
  final bool isSentByMe;
  final bool showTime;
  final String formattedTime;

  const VoiceItem({
    required this.voiceBody,
    required this.isSentByMe,
    required this.showTime,
    required this.formattedTime,
    super.key,
  });

  @override
  Widget build(BuildContext context) {
    // 获取语音时长（秒）
    final duration = voiceBody.duration;
    final durationText = '${duration}s';

    return Column(
      children: [
        // 显示时间
        if (showTime) _buildTimeLabel(),
        Container(
          padding: EdgeInsets.symmetric(horizontal: 16.w, vertical: 8.h),
          child: Row(
            mainAxisAlignment: isSentByMe
                ? MainAxisAlignment.end
                : MainAxisAlignment.start,
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              if (!isSentByMe) _buildAvatar(),
              if (!isSentByMe) SizedBox(width: 8.w),
              Container(
                margin: EdgeInsets.only(top: 10.h),
                padding: EdgeInsets.symmetric(horizontal: 12.w, vertical: 10.h),
                decoration: BoxDecoration(
                  color: isSentByMe ? Color(0xff8E7BF6) : Colors.white,
                  borderRadius: BorderRadius.only(
                    topLeft: isSentByMe
                        ? Radius.circular(12.w)
                        : Radius.circular(0),
                    topRight: isSentByMe
                        ? Radius.circular(0)
                        : Radius.circular(12.w),
                    bottomLeft: Radius.circular(12.w),
                    bottomRight: Radius.circular(12.w),
                  ),
                ),
                child: Row(
                  mainAxisSize: MainAxisSize.min,
                  children: [
                    // 播放按钮
                    GestureDetector(
                      onTap: () {
                        // TODO: 处理播放/暂停逻辑
                      },
                      child: Container(
                        width: 20.w,
                        height: 20.w,
                        decoration: BoxDecoration(
                          shape: BoxShape.circle,
                          color: isSentByMe ? Colors.white : Colors.black,
                        ),
                        child: Icon(
                          Icons.play_arrow,
                          color: isSentByMe ? Color(0xff8E7BF6) : Colors.white,
                          size: 16.w,
                        ),
                      ),
                    ),
                    SizedBox(width: 8.w),
                    // 时长文本
                    Text(
                      durationText,
                      style: TextStyle(
                        fontSize: 14.sp,
                        color: isSentByMe ? Colors.white : Colors.black,
                        fontWeight: FontWeight.w500,
                      ),
                    ),
                    SizedBox(width: 8.w),
                    // 音频波形
                    _buildWaveform(),
                  ],
                ),
              ),
              if (isSentByMe) SizedBox(width: 8.w),
              if (isSentByMe) _buildAvatar(),
            ],
          ),
        ),
      ],
    );
  }

  // 构建时间标签
  Widget _buildTimeLabel() {
    return Container(
      alignment: Alignment.center,
      padding: EdgeInsets.symmetric(horizontal: 16.w),
      child: Container(
        padding: EdgeInsets.symmetric(horizontal: 12.w),
        child: Text(
          formattedTime,
          style: TextStyle(fontSize: 12.sp, color: Colors.grey),
        ),
      ),
    );
  }

  // 构建头像
  Widget _buildAvatar() {
    return Container(
      width: 40.w,
      height: 40.w,
      decoration: BoxDecoration(
        borderRadius: BorderRadius.circular(20.w),
        image: DecorationImage(
          image: AssetImage(Assets.imagesAvatarsExample),
          fit: BoxFit.cover,
        ),
      ),
    );
  }

  // 构建音频波形
  Widget _buildWaveform() {
    // 根据时长生成波形条数量（最多20个）
    final barCount = (voiceBody.duration / 2).ceil().clamp(5, 20);

    return SizedBox(
      height: 16.h,
      child: Row(
        mainAxisSize: MainAxisSize.min,
        crossAxisAlignment: CrossAxisAlignment.center,
        children: List.generate(barCount, (index) {
          // 模拟波形高度变化
          final random = (index * 7) % 5;
          final baseHeight = 6 + random * 2;
          final height = (baseHeight.clamp(4, 16)).h;

          return Container(
            width: 2.w,
            height: height,
            margin: EdgeInsets.symmetric(horizontal: 1.w),
            decoration: BoxDecoration(
              color: isSentByMe
                  ? Colors.white.withOpacity(0.8)
                  : Colors.grey.withOpacity(0.6),
              borderRadius: BorderRadius.circular(1.w),
            ),
          );
        }),
      ),
    );
  }
}