PrivateBoxiOS/创维盒子/code/cloudPhone/websocket/webSocketManager+downloadThumbnailImage.m

//
//  webSocketManager+downloadThumbnailImage.m
//  双子星云手机
//
//  Created by xd h on 2024/6/20.
//

#import "webSocketManager+downloadThumbnailImage.h"

@implementation webSocketManager (downloadThumbnailImage)
- (void)begindownloadThumbnailImageFunBy:(couldPhoneFileModel *)couldPhoneFileMod
{
    self.curDownloadThumbnailModel = couldPhoneFileMod;
    
    if(!self.curDownloadThumbnailModel
       || ![self.curDownloadThumbnailModel isKindOfClass:[couldPhoneFileModel class]]){
        return;
    }
    
    [self ApplyDownloadThumbnailFun];
}

#pragma mark 申请下载缩略图
- (void)ApplyDownloadThumbnailFun
{
    
    self.downloadThumbnailTaskUid = [iTools getTaskUidStr];
 
    if([self.downloadThumbnailTaskUid isEqualToString:self.backupsTaskUid]
       ||[self.downloadThumbnailTaskUid isEqualToString:self.taskUid]
       ||[self.downloadThumbnailTaskUid isEqualToString:self.downloadFileTaskUid])
    {//重新生成taskUid
        [self ApplyDownloadThumbnailFun];
        return;
    }
    
    NSString *fileName = [self.curDownloadThumbnailModel getFileNameFun];
    NSString*pathStr = [cachesFileManager getFilePathWithName:fileName type:DownLoadThumbnail];
    long didDownloadBytes = 0;
    
    NSFileManager *manager0 = [NSFileManager defaultManager];
    if([manager0 fileExistsAtPath:pathStr]) {
        NSFileHandle *fileHandle = [NSFileHandle fileHandleForReadingAtPath:pathStr]; // 创建文件句柄
        if (fileHandle) {
            didDownloadBytes = [fileHandle seekToEndOfFile];
            // 关闭文件句柄
            [fileHandle closeFile];
        }
    }
    
    NSString * commandStr = [RCCommandHelp applyForDownloadThumbnailFileBy:self.downloadThumbnailTaskUid withFilePath:self.curDownloadThumbnailModel.path withPosition:didDownloadBytes];
    //[self.commandChannelManager rc_sendData:commandStr];
}

- (void)downloadThumbnailFileFunServiceResponseFun:(NSData *)fileData with:(BOOL)isDownloadDone
{
    
    NSString *fileName = [self.curDownloadThumbnailModel getFileNameFun];
        
    NSString*pathStr = [cachesFileManager getFilePathWithName:fileName type:DownLoadThumbnail];
    
    NSFileManager *manager0 = [NSFileManager defaultManager];
    long long endOfFile = 0;
    
    if(![manager0 fileExistsAtPath:pathStr]) {
        [cachesFileManager getFileNameWithContent:fileData fileName:fileName type:DownLoadThumbnail];
    }
    else{
        NSFileHandle *fileHandle = [NSFileHandle fileHandleForWritingAtPath:pathStr]; // 创建文件句柄
        if (fileHandle) {
            endOfFile = [fileHandle seekToEndOfFile];
            if (endOfFile >=  0) {
                //if(endOfFile == self.curDownloadThumbnailModel.didDownloadBytes){
                    [fileHandle writeData:fileData];
                //}
            }
            
            endOfFile = [fileHandle seekToEndOfFile];
            // 关闭文件句柄
            [fileHandle closeFile];
        }
    }
    
    long didDownloadBytes = fileData.length;
    if(endOfFile > 0){
        didDownloadBytes = endOfFile;
    }
    
    //self.curDownloadThumbnailModel.didDownloadBytes = didDownloadBytes;
   
    [[downloadThumbnailManager shareInstance] DownloadFileDoneOneFileFun];
    
}

@end