//
//  KXTime.m
//  CAISHEN
//
//  Created by kuxuan on 2017/8/25.
//  Copyright © 2017年 kuxuan. All rights reserved.
//

#import "KXTime.h"

@implementation KXTime

+ (BOOL)isToday:(NSDate *)date
{
    if ([[self getFormateDate:date] isEqualToString:@"今天"]) {
        return YES;
    }else{
        return NO;
    }
}

+ (NSString *)getFormateDate:(NSDate *)newsDate
{
    NSTimeInterval secondsPerDay = 24 * 60 * 60 * 1000;
    NSDate *today=[NSDate date];
    NSDate *yearsterDay =  [[NSDate alloc] initWithTimeIntervalSinceNow:-secondsPerDay];
    NSDate *qianToday =  [[NSDate alloc] initWithTimeIntervalSinceNow:-2*secondsPerDay];
    //假设这是你要比较的date：NSDate *yourDate = ……
    //日历
    NSCalendar* calendar = [NSCalendar currentCalendar];
    unsigned unitFlags = NSCalendarUnitYear | NSCalendarUnitMonth |  NSCalendarUnitHour;
    NSDateComponents* comp1 = [calendar components:unitFlags fromDate:newsDate];
    NSDateComponents* comp2 = [calendar components:unitFlags fromDate:yearsterDay];
    NSDateComponents* comp3 = [calendar components:unitFlags fromDate:qianToday];
    NSDateComponents* comp4 = [calendar components:unitFlags fromDate:today];
    if ( comp1.year == comp2.year && comp1.month == comp2.month && comp1.day == comp2.day) {
        return @"昨天";
    }
    if (comp1.year == comp3.year && comp1.month == comp3.month && comp1.day == comp3.day)
    {
        return @"前天";
    }
    if (comp1.year == comp4.year && comp1.month == comp4.month && comp1.day == comp4.day)
    {
        return @"今天";
    }
    return @"0";
}

+ (BOOL)validateWithStartTime:(NSString *)startTime withExpireTime:(NSString *)expireTime {
    
    NSDate *now = [NSDate date];
    NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init];
    [dateFormat setDateFormat:@"yyyy-MM-dd'T'HH:mm"];
    NSString *today = [dateFormat stringFromDate:now];
    NSDate *start = [dateFormat dateFromString:[today stringByReplacingCharactersInRange:NSMakeRange(11, 5) withString:startTime]];
    NSDate *expire = [dateFormat dateFromString:[today stringByReplacingCharactersInRange:NSMakeRange(11, 5) withString:expireTime]];
    if ([now compare:start] == NSOrderedDescending && [now compare:expire] == NSOrderedAscending) {
        return YES;
    }
    return NO;
}

@end