JSJP_Student/jiaPei/OLD/Util/SingletonManger/RQDownloadManager/RQDownloadModel.h

//
//  RQDownloadModel.h
//  TEST
//
//  Created by 张嵘 on 2018/10/22.
//  Copyright © 2018 张嵘. All rights reserved.
//

#import <Foundation/Foundation.h>

@class RQDownloadOperation;
@class RQDownloadModel;

//下载状态
typedef NS_ENUM(NSUInteger, RQDownloadStatus) {
	RQDownloadStatus_None 			= 0,	// 无状态
	RQDownloadStatus_Running 		= 1,	// 正在下载
	RQDownloadStatus_Suspended 		= 2,	// 下载暂停
	RQDownloadStatus_Completed 		= 3,  	// 下载完成
	RQDownloadStatus_Failed  		= 4,  	// 下载失败
	RQDownloadStatus_Waiting 		= 5,  	// 等待下载
	RQDownloadStatus_Cancel 		= 6,  	// 取消下载
};

//下载状态改变回调
typedef void(^DownloadStatusChanged)(RQDownloadModel *downloadModel);

//下载进度回调
typedef void(^DownloadProgressChanged)(RQDownloadModel *downloadModel);

@interface RQDownloadModel : NSObject
@property (nonatomic, copy) NSString *videoId;							// 视频ID
@property (nonatomic, copy) NSString *subject;							// 视频类型
@property (nonatomic, copy) NSString *vid;                  			// 唯一id标识
@property (nonatomic, copy) NSString *urlString;                  		// url
@property (nonatomic, copy) NSString *title;							// 标题
@property (nonatomic, copy) NSString *imageUrl;							// 图片
@property (nonatomic, copy) NSString *content;							// 内容

@property (nonatomic, copy) NSString *destinationPath;            		// 下载完成路径
@property (nonatomic, copy) NSString *fileName;             			// 文件名
@property (nonatomic, copy) NSString *fileFormat;						// 文件路径
@property (nonatomic, strong) NSData *resumeData;           			// 下载的数据
@property (nonatomic, assign) CGFloat progress;             			// 下载进度
@property (nonatomic, assign) NSUInteger fileTotalSize;     			// 文件总大小
@property (nonatomic, assign) NSUInteger fileDownloadSize;       		// 下载大小
@property (nonatomic, assign) NSUInteger speed;             			// 下载速度
@property (nonatomic, assign) RQDownloadStatus status;     			 	// 下载状态
@property (nonatomic, copy) NSString *statusText;						// 下载状态文字
@property (nonatomic, assign) NSUInteger lastSpeedTime;     			// 上次计算速度时的时间戳
@property (nonatomic, assign) NSUInteger intervalFileSize;  			// 计算速度时间内下载文件的大小
@property (nonatomic, assign) NSUInteger lastStateTime;     			// 记录任务加入准备下载的时间（点击默认、暂停、失败状态），用于计算开始、停止任务的先后顺序


@property (nonatomic, strong) RQDownloadOperation * operation;			// 下载操作
@property (nonatomic, copy) DownloadStatusChanged statusChanged;		// 状态改变回调
@property (nonatomic, copy) DownloadProgressChanged progressChanged;	// 进度改变回调
@property (nonatomic, assign) BOOL isLast;								// 数组最后一个模型
@property (nonatomic, strong) NSOutputStream *stream; 					// 输出流
@property (nonatomic, assign) BOOL isFinished;							// 下载完成

@property (nonatomic, strong) RACSignal *progressChangedSignal;
// 根据数据库查询结果初始化
- (instancetype)initWithFMResultSet:(FMResultSet *)resultSet;
@end