//
//  Timestamp.m
//  YUMI
//
//  Created by YUMI on 2022/1/12.
//

#import "Timestamp.h"
#import "YUMIMacroUitls.h"

@implementation Timestamp
/// 获取当前的时间戳
/// @param succes 成功
/// @param failure 失败
+ (void)getInternetDateWithSuccess:(void(^)(NSTimeInterval timeInterval))succes
						   failure:(void(^)(NSError *error))failure{
	//1.创建URL
	NSString *urlString = [HttpRequestHelper getHostUrl];
	urlString = [urlString stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLQueryAllowedCharacterSet]];
	//2.创建request请求对象
	NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
	[request setURL:[NSURL URLWithString: urlString]];
	[request setCachePolicy:NSURLRequestReloadIgnoringCacheData];
	[request setTimeoutInterval:5];
	[request setHTTPShouldHandleCookies:FALSE];
	[request setHTTPMethod:@"GET"];
	//3.创建URLSession对象
	NSURLSession *session = [NSURLSession sharedSession];
	//4.设置数据返回回调的block
	NSURLSessionDataTask *task = [session dataTaskWithRequest:request completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
		if (error == nil && response != nil) {
			//这么做的原因是简体中文下的手机不能识别“MMM”，只能识别“MM”
			NSArray *monthEnglishArray = @[@"Jan",@"Feb",@"Mar",@"Apr",@"May",@"Jun",@"Jul",@"Aug",@"Sept",@"Sep",@"Oct",@"Nov",@"Dec"];
			NSArray *monthNumArray = @[@"01",@"02",@"03",@"04",@"05",@"06",@"07",@"08",@"09",@"09",@"10",@"11",@"12"];
			NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *)response;
			NSDictionary *allHeaderFields = [httpResponse allHeaderFields];
			NSString *dateStr = [allHeaderFields objectForKey:@"Date"];
			dateStr = [dateStr substringFromIndex:5];
			dateStr = [dateStr substringToIndex:[dateStr length]-4];
			dateStr = [dateStr stringByAppendingString:@" +0000"];
			//当前语言是中文的话，识别不了英文缩写
			for (NSInteger i = 0 ; i < monthEnglishArray.count ; i++) {
				NSString *monthEngStr = monthEnglishArray[i];
				NSString *monthNumStr = monthNumArray[i];
				dateStr = [dateStr stringByReplacingOccurrencesOfString:monthEngStr withString:monthNumStr];
				
			}
			NSDateFormatter *dMatter = [[NSDateFormatter alloc] init];
			[dMatter setDateFormat:@"dd MM yyyy HH:mm:ss Z"];
			NSDate *netDate = [dMatter dateFromString:dateStr];
			NSTimeInterval timeInterval = [netDate timeIntervalSince1970];
			dispatch_async(dispatch_get_main_queue(), ^{
				succes(timeInterval);
			});
			
		}else{
			dispatch_async(dispatch_get_main_queue(), ^{
				failure(error);
			});
			
		}
		
	}];
	//5、执行网络请求
	[task resume];
	
}
@end