package com.ddnai.web.controller.system;

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import com.ddnai.common.core.controller.BaseController;
import com.ddnai.common.core.domain.AjaxResult;
import com.ddnai.common.utils.file.VideoDurationUtils;
import java.util.HashMap;
import java.util.Map;

/**
 * FFmpeg状态检查控制器
 * 用于诊断视频时长提取功能
 * 
 * @author ddnai
 */
@RestController
@RequestMapping("/system/ffmpeg")
public class FFmpegStatusController extends BaseController
{
    /**
     * 检查FFmpeg是否可用
     */
    @GetMapping("/status")
    public AjaxResult checkFFmpegStatus()
    {
        Map<String, Object> result = new HashMap<>();
        
        try
        {
            // 检查FFmpeg是否可用
            boolean isAvailable = VideoDurationUtils.isFFmpegAvailable();
            result.put("available", isAvailable);
            
            if (isAvailable)
            {
                result.put("message", "✓ FFmpeg已安装且可用");
                result.put("status", "success");
            }
            else
            {
                result.put("message", "✗ FFmpeg不可用或未安装");
                result.put("status", "error");
                result.put("solution", new String[]{
                    "1. 下载FFmpeg: https://ffmpeg.org/download.html",
                    "2. 解压到系统目录（如 C:\\ffmpeg）",
                    "3. 添加到系统PATH环境变量",
                    "4. 重启应用服务器",
                    "或者：在后台管理系统中手动设置视频时长"
                });
            }
            
            return AjaxResult.success(result);
        }
        catch (Exception e)
        {
            result.put("available", false);
            result.put("message", "检查FFmpeg状态时发生错误: " + e.getMessage());
            result.put("status", "error");
            return AjaxResult.error("检查FFmpeg状态失败", result);
        }
    }
}