JSJP_Student/jiaPei/Modules/OtherModules/VideosModule/SingletonManger/RQDownloadManager/RQDownloadModel.m

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

#import "RQDownloadModel.h"
#import "RQDownloadHeader.h"

@implementation RQDownloadModel

- (void)encodeWithCoder:(NSCoder *)aCoder {
	[aCoder encodeObject:self.imageUrl forKey:@"imageUrl"];
	[aCoder encodeObject:self.title forKey:@"title"];
	[aCoder encodeObject:self.content forKey:@"content"];
	[aCoder encodeObject:self.urlString forKey:@"urlString"];
	[aCoder encodeObject:self.downloadDesc forKey:@"downloadDesc"];
	[aCoder encodeObject:self.fileName forKey:@"fileName"];
	[aCoder encodeObject:self.fileFormat forKey:@"fileFormat"];
	[aCoder encodeObject:self.destinationPath forKey:@"destinationPath"];
	[aCoder encodeObject:[NSNumber numberWithFloat:self.progress] forKey:@"progress"];
	[aCoder encodeObject:[NSNumber numberWithInteger:self.status] forKey:@"status"];
	[aCoder encodeObject:self.statusText forKey:@"statusText"];
	[aCoder encodeObject:self.completeTime forKey:@"completeTime"];
	[aCoder encodeObject:[NSNumber numberWithBool:self.isLast] forKey:@"isLast"];
	[aCoder encodeObject:[NSNumber numberWithInteger:self.fileTotalSize] forKey:@"fileTotalSize"];
	[aCoder encodeObject:[NSNumber numberWithInteger:self.fileDownloadSize] forKey:@"fileDownloadSize"];
	[aCoder encodeObject:[NSNumber numberWithBool:self.isFinished] forKey:@"isFinished"];
}

- (instancetype)initWithCoder:(NSCoder *)aDecoder {
	if (self = [super init]) {
		self.imageUrl = [aDecoder decodeObjectForKey:@"imageUrl"];
		self.title = [aDecoder decodeObjectForKey:@"title"];
		self.content = [aDecoder decodeObjectForKey:@"content"];
		self.urlString = [aDecoder decodeObjectForKey:@"urlString"];
		self.downloadDesc = [aDecoder decodeObjectForKey:@"downloadDesc"];
		self.fileName = [aDecoder decodeObjectForKey:@"fileName"];
		self.fileFormat = [aDecoder decodeObjectForKey:@"fileFormat"];
		self.destinationPath = [aDecoder decodeObjectForKey:@"destinationPath"];
		self.progress = [[aDecoder decodeObjectForKey:@"progress"] floatValue];
		self.status = [[aDecoder decodeObjectForKey:@"status"] integerValue];
		self.statusText = [aDecoder decodeObjectForKey:@"statusText"];
		self.completeTime = [aDecoder decodeObjectForKey:@"completeTime"];
		self.isLast = [[aDecoder decodeObjectForKey:@"isLast"] boolValue];
		self.fileTotalSize = [[aDecoder decodeObjectForKey:@"fileTotalSize"] integerValue];
		self.fileDownloadSize = [[aDecoder decodeObjectForKey:@"fileDownloadSize"] integerValue];
		self.isFinished = [[aDecoder decodeObjectForKey:@"isFinished"] boolValue];

	}
	return self;
}

- (NSString *)destinationPath{
	_destinationPath = [[RQCachesDirectory stringByAppendingString:self.fileName] stringByAppendingString:self.fileFormat];
	return _destinationPath;
}


- (NSString *)fileName{
	if (!_fileName) {
		NSTimeInterval timeInterval = [[NSDate date]timeIntervalSince1970];
		//解决多个任务同时开始时 文件重名问题
		NSString *timeStr = [NSString stringWithFormat:@"%.6f",timeInterval];
		timeStr = [timeStr stringByReplacingOccurrencesOfString:@"." withString:@"_"];
		_fileName = [NSString stringWithFormat:@"%@",timeStr];
	}
	return _fileName;
}

- (NSString *)fileFormat{
	if (!_fileFormat && _urlString) {
		NSArray *urlArr = [_urlString componentsSeparatedByString:@"."];
		if (urlArr && urlArr.count>1) {
			self.fileFormat = [@"." stringByAppendingString:[urlArr lastObject]];
		}
	}
	return _fileFormat;
}


- (void)setProgress:(CGFloat)progress{
	if (_progress != progress) {
		_progress = progress;
	}
	
	if ([kRQDownloadManager enableProgressLog]) {
		NSLog(@"%@%@==%@==%.1f%%",self.fileName,self.fileFormat,self.statusText,progress*100*1.0);
	}
	
	if (self.progressChanged) {
		self.progressChanged(self);
	}
}


- (void)setStatus:(RQDownloadStatus)status{
	
	if (_status != status) {
		_status = status;
		[self setStatusTextWith:_status];
		
		if (self.statusChanged) {
			self.statusChanged(self);
		}
	}
}


- (void)setUrlString:(NSString *)urlString{
	_urlString = urlString;
	
	NSArray *urlArr = [_urlString componentsSeparatedByString:@"."];
	if (urlArr && urlArr.count>1) {
		self.fileFormat = [@"." stringByAppendingString:[urlArr lastObject]];
	}
}

- (void)setCompleteTime:(NSString *)completeTime{
	NSDateFormatter *fomatter = [[NSDateFormatter alloc]init];
	_completeTime = [fomatter stringFromDate:[NSDate date]];
}


- (void)setStatusTextWith:(RQDownloadStatus)status{
	_status = status;
	switch (status) {
			case RQDownloadStatus_Running: {
				self.statusText = @"正在下载";
				break;
			}
			case RQDownloadStatus_Suspended: {
				self.statusText = @"暂停下载";
				break;
			}
			case RQDownloadStatus_Failed: {
				self.statusText = @"下载失败";
				break;
			}
			case RQDownloadStatus_Cancel: {
				self.statusText = @"取消下载";
				break;
			}
			case RQDownloadStatus_Waiting: {
				self.statusText = @"等待下载";
				break;
			}
			case RQDownloadStatus_Completed: {
				self.statusText = @"下载完成";
				break;
			}
		default: {
			break;
		}
	}
	
	NSLog(@"%@%@==%@",self.fileName,self.fileFormat,self.statusText);
}





+ (NSArray *)mj_ignoredCodingPropertyNames{
	
	return @[@"statusChanged",@"progressChanged",@"stream",@"operation"];
}



- (NSInteger)fileDownloadSize{
	// 获取文件下载长度
	NSInteger fileDownloadSize = [[[NSFileManager defaultManager] attributesOfItemAtPath:self.destinationPath error:nil][NSFileSize] integerValue];
	_fileDownloadSize = fileDownloadSize;
	return _fileDownloadSize;
}



- (NSOutputStream *)stream{
	if (!_stream) {
		_stream =  [NSOutputStream outputStreamToFileAtPath:self.destinationPath append:YES];
	}
	return _stream;
}

- (BOOL)isFinished{
	
	return (self.fileTotalSize == self.fileDownloadSize) && (self.fileTotalSize != 0);
}

@end