//
//  DRIncomeDateTool.m
//  YouHuiProject
//
//  Created by 小花 on 2018/8/8.
//  Copyright © 2018年 kuxuan. All rights reserved.
//

#import "DRIncomeDateTool.h"

@implementation DRIncomeDateTool

+ (NSString *)getTodayString {
    NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
    [formatter setDateFormat:@"yyyy-MM-dd"];
    NSDate *datenow = [NSDate date];

    NSString *currentTimeString = [formatter stringFromDate:datenow];
    
    return currentTimeString;
}

+ (NSString *)getYestodayString {
    
    NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
    [formatter setDateFormat:@"yyyy-MM-dd"];
    NSDate * date = [NSDate date];//当前时间
    NSDate *lastDay = [NSDate dateWithTimeInterval:-24*60*60 sinceDate:date];//前一天
    NSString *currentTimeString = [formatter stringFromDate:lastDay];
    return currentTimeString;
}

+ (NSString *)getThisMonthString {
    NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
    [formatter setDateFormat:@"yyyy-MM"];
    NSDate *datenow = [NSDate date];
    NSString *currentTimeString = [formatter stringFromDate:datenow];
    return currentTimeString;
}

+ (NSString *)getLastMonthString {
    NSDate *currentDate = [NSDate date];
    NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
    [formatter setDateFormat:@"yyyy-MM"];
    
    NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSCalendarIdentifierGregorian];
    NSDateComponents *lastMonthComps = [[NSDateComponents alloc] init];
    //    [lastMonthComps setYear:1]; // year = 1表示1年后的时间 year = -1为1年前的日期，month day 类推
    [lastMonthComps setMonth:-1];
    NSDate *newdate = [calendar dateByAddingComponents:lastMonthComps toDate:currentDate options:0];
    NSString *dateStr = [formatter stringFromDate:newdate];
    return dateStr;
}

@end