PrivateBoxiOS/创维盒子/双子星云手机/Class/Set/uploadFile/uploadFileManager/downloadThumbnailManager.m

//
//  downloadThumbnailManager.m
//  隐私保护
//
//  Created by xd h on 2024/1/8.
//

#import "downloadThumbnailManager.h"

@implementation downloadThumbnailManager
static downloadThumbnailManager * cur_downloadFileShareInstance = nil;
+(downloadThumbnailManager *)shareInstance;
{
    static dispatch_once_t onceToken;
    
    dispatch_once(&onceToken, ^{
        cur_downloadFileShareInstance = [[downloadThumbnailManager alloc] init];
        
    });
    
    return cur_downloadFileShareInstance;
}

- (id)init
{
    self = [super init];
    
    if (self) {
        //[self initManager];
    }
    
    return self;
}

- (void)handlToDownloadThumbnailWith:(NSArray*)Arr
{
    if(Arr && Arr.count >0){
        if (!_waitDownloadTaskArr) {
            _waitDownloadTaskArr = [NSMutableArray arrayWithArray:Arr];
        }
        else{
            [_waitDownloadTaskArr addObjectsFromArray:Arr];
        }
        
        [self planToDownloadThumbnailFun];
    }
}


- (void)planToDownloadThumbnailFun
{
    if (!_downloadingTaskArr || _downloadingTaskArr.count == 0) {
        _downloadingTaskArr = [NSMutableArray arrayWithArray:_waitDownloadTaskArr];
        [_waitDownloadTaskArr removeAllObjects];
    }
    
    [self beginDownloadThumbnailFun];
}

- (void)beginDownloadThumbnailFun
{
    if (_downloadingTaskArr.count > 0) {
        _curDownloadFileModel = _downloadingTaskArr.firstObject;
    }
    else{
        if(_waitDownloadTaskArr && _waitDownloadTaskArr.count>0){
            _downloadingTaskArr = [NSMutableArray arrayWithArray:_waitDownloadTaskArr];
            [_waitDownloadTaskArr removeAllObjects];
            [self beginDownloadThumbnailFun];
        }
        return;
    }
    
    //检测本地是否已经下载文件了
    NSString *fileName = [self.curDownloadFileModel getFileNameFun];
    NSString*pathStr = [cachesFileManager getFilePathWithName:fileName type:DownLoadThumbnail];
    
    NSFileManager *manager0 = [NSFileManager defaultManager];
    if([manager0 fileExistsAtPath:pathStr]) {
        //已经下载过了
        [_downloadingTaskArr removeObject:_curDownloadFileModel];
        _curDownloadFileModel = nil;
        [self beginDownloadThumbnailFun];
        return;
    }
    
    
    [[NSNotificationCenter defaultCenter] postNotificationName:downloadThumbnailBeginNotification object:_curDownloadFileModel];
}

- (void)DownloadFileDoneOneFileFun
{
    [_downloadingTaskArr removeObject:_curDownloadFileModel];
    _curDownloadFileModel = nil;
    [self beginDownloadThumbnailFun];
    
    [[NSNotificationCenter defaultCenter] postNotificationName:downloadThumbnailDoneOneNotification object:nil];
}
@end