package com.ruoyi.web.controller.task;

import java.util.Date;
import java.util.List;
import java.io.File;
import java.io.FileInputStream;
import java.io.OutputStream;
import javax.servlet.http.HttpServletResponse;

import com.ruoyi.common.utils.WechatUtils;
import com.ruoyi.common.config.WechatConfig;
import com.ruoyi.system.domain.SysTask;
import com.ruoyi.system.domain.SysTaskEmergency;
import com.ruoyi.system.service.ISysTaskEmergencyService;
import com.ruoyi.system.service.ISysUserService;
import com.ruoyi.system.service.ITaskAttachmentSyncService;
import com.ruoyi.system.task.ITaskAttachmentService;
import org.springframework.security.access.prepost.PreAuthorize;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.DeleteMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;
import com.ruoyi.common.annotation.Log;
import com.ruoyi.common.core.controller.BaseController;
import com.ruoyi.common.core.domain.AjaxResult;
import com.ruoyi.common.enums.BusinessType;
import com.ruoyi.system.domain.SysTaskAttachment;
import com.ruoyi.system.service.ISysTaskService;

/**
 * 任务附件Controller
 * 
 * @author ruoyi
 * @date 2024-01-15
 */
@RestController
@RequestMapping("/task/attachment")
public class SysTaskAttachmentController extends BaseController {
    
    @Autowired
    private ISysTaskService sysTaskService;

    @Autowired
    private ISysUserService sysUserService;

    @Autowired
    private ITaskAttachmentSyncService taskAttachmentSyncService;

    @Autowired
    private ITaskAttachmentService taskAttachmentService;
    
    @Autowired
    private WechatConfig wechatConfig;

    @Autowired
    private ISysTaskEmergencyService sysTaskEmergencyService;

    @Autowired
    private ISysUserService userService;
    /**
     * 查询任务附件列表
     */
    @GetMapping("/list/{taskId}")
    public AjaxResult list(@PathVariable("taskId") Long taskId) {
        SysTask task = sysTaskService.getTaskDetail(taskId);
        return success(task.getAttachments());
    }

    /**
     * 上传任务附件
     */

    @Log(title = "任务附件", businessType = BusinessType.INSERT)
    @PostMapping("/upload/{taskId}")
    public AjaxResult upload(@PathVariable("taskId") Long taskId, 
                            @RequestParam("file") MultipartFile file,
                            @RequestParam(value = "category", required = true) String category) {
        try {
            Long attachmentId= sysTaskService.uploadAttachment(taskId, file, category);
            if (attachmentId > 0) {
                //在这里进行同步
                SyncAttachmentToImageData(taskId,sysTaskService.getTaskDetail(taskId).getCreatorId(),attachmentId);
                return success("上传成功");
            } else {
                return error("上传失败");
            }
        } catch (Exception e) {
            return error("上传失败：" + e.getMessage());
        }
    }

    private void SyncAttachmentToImageData(Long taskId,Long taskCreatorId, Long attachmentId) {
       Integer oaUserId= sysUserService.selectUserById(taskCreatorId).getOaUserId();
        SysTaskEmergency taskEmergency= sysTaskEmergencyService.selectSysTaskEmergencyByTaskId(taskId);
        if(taskEmergency!=null ){
            Long serviceOrderId= taskEmergency.getLegacyServiceOrdId();
            Long dispathOrdId=taskEmergency.getLegacyDispatchOrdId();

            if(serviceOrderId!=null && dispathOrdId!=null){
                SysTaskAttachment attachment=sysTaskService.getAttachmentById(attachmentId);
               Long imageDataId= taskAttachmentSyncService.syncAttachmentToImageData(attachment, serviceOrderId, dispathOrdId,oaUserId);
                //同步成功
                if(imageDataId>0){
                    attachment.setSyncedToImageData(1);
                    attachment.setSyncTime(new Date());
                    attachment.setImageDataId(imageDataId);
                    taskAttachmentService.updateAttachment(attachment);
                }

            }
        }
    }
    /**
     * 删除任务附件
     */
    @Log(title = "任务附件", businessType = BusinessType.DELETE)
    @DeleteMapping("/{attachmentId}")
    public AjaxResult remove(@PathVariable("attachmentId") Long attachmentId) {
        try {
            int result = sysTaskService.deleteAttachment(attachmentId);
            if (result > 0) {
                return success("删除成功");
            } else {
                return error("删除失败");
            }
        } catch (Exception e) {
            return error("删除失败：" + e.getMessage());
        }
    }
    
    /**
     * 从微信mediaId上传附件（微信小程序专用）
     */
    @Log(title = "任务附件", businessType = BusinessType.INSERT)
    @PostMapping("/uploadFromWechat/{taskId}")
    public AjaxResult uploadFromWechat(@PathVariable("taskId") Long taskId,
                                       @RequestParam("mediaId") String mediaId,
                                       @RequestParam(value = "category", required = false) String category) {
        try {
            // 获取微信AccessToken
            String accessToken = WechatUtils.getAccessToken(
                wechatConfig.getAppId(), 
                wechatConfig.getAppSecret()
            );
            if (accessToken == null || accessToken.isEmpty()) {
                return error("获取微信AccessToken失败");
            }
            
            // 通过mediaId上传附件
            Long attachmentId = sysTaskService.uploadAttachmentFromWechat(taskId, accessToken, mediaId, category);
            SysTask task=sysTaskService.getTaskDetail(taskId);
            if (attachmentId > 0) {
                this.SyncAttachmentToImageData(taskId,task.getCreatorId(),attachmentId);
                return success("上传成功");
            } else {
                return error("上传失败");
            }
        } catch (Exception e) {
            return error("上传失败：" + e.getMessage());
        }
    }
    
    /**
     * 下载附件
     */
    @GetMapping("/download/{attachmentId}")
    public void downloadAttachment(@PathVariable("attachmentId") Long attachmentId, HttpServletResponse response) {
        try {
            SysTaskAttachment attachment = sysTaskService.getAttachmentById(attachmentId);
            if (attachment == null) {
                response.setStatus(HttpServletResponse.SC_NOT_FOUND);
                return;
            }
            
            File file = new File(attachment.getFilePath());
            if (!file.exists()) {
                response.setStatus(HttpServletResponse.SC_NOT_FOUND);
                return;
            }
            
            // 设置响应头
            response.setContentType("application/octet-stream");
            response.setHeader("Content-Disposition", "attachment; filename=" + attachment.getFileName());
            response.setContentLengthLong(file.length());
            
            // 读取文件并输出
            try (FileInputStream fis = new FileInputStream(file);
                 OutputStream os = response.getOutputStream()) {
                byte[] buffer = new byte[4096];
                int bytesRead;
                while ((bytesRead = fis.read(buffer)) != -1) {
                    os.write(buffer, 0, bytesRead);
                }
                os.flush();
            }
        } catch (Exception e) {
            logger.error("下载附件失败", e);
            response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
        }
    }
}