//
//  DateManager.m
//  YouHuiProject
//
//  Created by 小花 on 2018/7/9.
//  Copyright © 2018年 kuxuan. All rights reserved.
//

#import "DateManager.h"
#import "DateModel.h"

@implementation DateManager

+ (NSArray *)getBuyLimitDateModels {
    
    NSMutableArray *array = [self getBuyLimitTimestrArr];
    NSDateFormatter *formate = [[NSDateFormatter alloc] init];
    [formate setTimeZone:[NSTimeZone localTimeZone]];
    [formate setDateFormat:@"yyyy-MM-dd HH:mm"];
    
    for (int i = 0; i < array.count; i++) {
        DateModel *model = array[i];
        NSDate *startDate = [formate dateFromString:model.startDateStr];
        NSTimeInterval startDateInterval = [startDate timeIntervalSince1970];
        NSDate *endDate = [formate dateFromString:model.endDateStr];
        NSTimeInterval endDateInterval = [endDate timeIntervalSince1970];
        NSDate *date = [NSDate date];

        NSTimeInterval localeDateInterval = [date timeIntervalSince1970];
        
        if (localeDateInterval >= startDateInterval && localeDateInterval <= endDateInterval) {
            return [self subModelFromModelArr:array index:i];
        }
    }
    
    return [self subModelFromModelArr:array index:0];
}

+ (NSArray *)subModelFromModelArr:(NSMutableArray *)totalArr index:(NSInteger)index{
    NSInteger local = index-7>0 ? index-7:0;
    NSArray *dateArr = [totalArr subarrayWithRange:NSMakeRange(local, 15)];
    return dateArr;
}



+ (NSMutableArray *)getBuyLimitTimestrArr {
    
    NSString *curDateStr = [self getCurrentTime];
    NSString *yesDateStr = [self GetYesterdayDay:[NSDate date]];
    NSString *tomDateStr = [self GetTomorrowDay:[NSDate date]];
    
    NSArray *timeArr = @[@"00:00",@"08:00",@"10:00",@"11:00",@"12:00",@"13:00",@"14:00",@"15:00",@"17:00",@"19:00",@"21:00",@"22:00",@"23:00"];
    NSMutableArray *yesTimeArr = [NSMutableArray array];
    NSMutableArray *todTimeArr = [NSMutableArray array];
    NSMutableArray *tomTimeArr = [NSMutableArray array];
    
    for (NSString *timeStr in timeArr) {
        NSString *yesTimeStr = [NSString stringWithFormat:@"%@ %@",yesDateStr,timeStr];
        NSString *todTimeStr = [NSString stringWithFormat:@"%@ %@",curDateStr,timeStr];
        NSString *tomTimeStr = [NSString stringWithFormat:@"%@ %@",tomDateStr,timeStr];
        
        DateModel *yesModel = [[DateModel alloc] init];
        yesModel.endTimeStr = timeStr;
        yesModel.endDateStr = yesTimeStr;
        
        DateModel *todModel = [[DateModel alloc] init];
        todModel.endTimeStr = timeStr;
        todModel.endDateStr = todTimeStr;
        
        DateModel *tomModel = [[DateModel alloc] init];
        tomModel.endTimeStr = timeStr;
        tomModel.endDateStr = tomTimeStr;
        
        [yesTimeArr addObject:yesModel];
        [todTimeArr addObject:todModel];
        [tomTimeArr addObject:tomModel];
    }
    
    NSMutableArray *totalArr = [NSMutableArray array];
    [totalArr addObjectsFromArray:yesTimeArr];
    [totalArr addObjectsFromArray:todTimeArr];
    [totalArr addObjectsFromArray:tomTimeArr];
    
    for (int i = 0; i < totalArr.count; i++) {
        DateModel *model = totalArr[i];
        if (i==0) {
            model.startTimeStr = @"23:00";
            model.startDateStr = [NSString stringWithFormat:@"%@ %@",curDateStr,@"23:00"];
        }else if (i==totalArr.count-1){
            model.startTimeStr = @"00:00";
            model.startDateStr = [NSString stringWithFormat:@"%@ %@",curDateStr,@"00:00"];
        }else {
            DateModel *lastModel = totalArr[i-1];
            model.startTimeStr = lastModel.endTimeStr;
            model.startDateStr = lastModel.endDateStr;
        }
    }
    
    return totalArr;
}





//获取当地时间
+ (NSString *)getCurrentTime {
    NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
    [formatter setDateFormat:@"yyyy-MM-dd"];
    NSString *dateTime = [formatter stringFromDate:[NSDate date]];
    return dateTime;
}
//将字符串转成NSDate类型
+ (NSDate *)dateFromString:(NSString *)dateString {
    
    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
    [dateFormatter setDateFormat: @"yyyy-MM-dd"];
    NSDate *destDate= [dateFormatter dateFromString:dateString];
    return destDate;
}
//传入今天的时间，返回明天的时间
+ (NSString *)GetTomorrowDay:(NSDate *)aDate {
    NSCalendar *gregorian = [[NSCalendar alloc] initWithCalendarIdentifier:NSCalendarIdentifierGregorian];
    NSDateComponents *components = [gregorian components:NSCalendarUnitWeekday | NSCalendarUnitYear | NSCalendarUnitMonth | NSCalendarUnitDay fromDate:aDate];
    [components setDay:([components day]+1)];
    
    NSDate *beginningOfWeek = [gregorian dateFromComponents:components];
    NSDateFormatter *dateday = [[NSDateFormatter alloc] init];
    [dateday setDateFormat:@"yyyy-MM-dd"];
    return [dateday stringFromDate:beginningOfWeek];
}

//传入今天的时间，返回昨天的时间
+ (NSString *)GetYesterdayDay:(NSDate *)aDate {
    NSCalendar *gregorian = [[NSCalendar alloc] initWithCalendarIdentifier:NSCalendarIdentifierGregorian];
    NSDateComponents *components = [gregorian components:NSCalendarUnitWeekday | NSCalendarUnitYear | NSCalendarUnitMonth | NSCalendarUnitDay fromDate:aDate];
    [components setDay:([components day]-1)];
    
    NSDate *beginningOfWeek = [gregorian dateFromComponents:components];
    NSDateFormatter *dateday = [[NSDateFormatter alloc] init];
    [dateday setDateFormat:@"yyyy-MM-dd"];
    return [dateday stringFromDate:beginningOfWeek];
}

//字符串转时间戳
+ (NSTimeInterval)timeStrToInterval:(NSString *)timeStr {
    NSDateFormatter *formate = [[NSDateFormatter alloc] init];
    [formate setTimeZone:[NSTimeZone localTimeZone]];
    [formate setDateFormat:@"yyyy-MM-dd HH:mm"];
    
    NSDate *date = [formate dateFromString:timeStr];
    NSTimeInterval dateInterval = [date timeIntervalSince1970];
    return dateInterval;
}

@end