//
//  NSString+Category.m
//  ALand
//
//  Created by Z on 16/3/30.
//  Copyright © 2016年 Z. All rights reserved.
//

#import "NSString+Category.h"
#import <CommonCrypto/CommonDigest.h>

@implementation NSString (Category)
+ (NSString *)randomTestText {
    //NSString *str = @"长短不一的测试数据";
    
    NSMutableString *result = [NSMutableString string];
    int randomNumber = arc4random()%10 + 1;
    for (int i = 0; i < randomNumber; i++) {
        [result appendString:@"长短不一的测试数据"];
    }
    
    return result;
}


#pragma mark - 正则相关
- (BOOL)isValidateByRegex:(NSString *)regex
{
    NSPredicate *pre = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex];
    return [pre evaluateWithObject:self];
}

#pragma mark -

//手机号分服务商
- (BOOL)isMobileNumberClassification{
    /**
     * 手机号码
     * 移动：134[0-8],135,136,137,138,139,150,151,157,158,159,182,187,188,1705
     * 联通：130,131,132,152,155,156,185,186,1709
     * 电信：133,1349,153,180,189,1700
     */
    //    NSString * MOBILE = @"^1((3//d|5[0-35-9]|8[025-9])//d|70[059])\\\\d{7}$";//总况
    
    /**
     10         * 中国移动：China Mobile
     11         * 134[0-8],135,136,137,138,139,150,151,157,158,159,182,187,188，1705
     12         */
    NSString * CM = @"^1(34[0-8]|(3[5-9]|5[017-9]|8[278])\\\\d|705)\\\\d{7}$";
    /**
     15         * 中国联通：China Unicom
     16         * 130,131,132,152,155,156,185,186,1709
     17         */
    NSString * CU = @"^1((3[0-2]|5[256]|8[56])\\\\d|709)\\\\d{7}$";
    /**
     20         * 中国电信：China Telecom
     21         * 133,1349,153,180,189,1700
     22         */
    NSString * CT = @"^1((33|53|8[09])\\\\d|349|700)\\\\d{7}$";
    
    
    /**
     25         * 大陆地区固话及小灵通
     26         * 区号：010,020,021,022,023,024,025,027,028,029
     27         * 号码：七位或八位
     28         */
    NSString * PHS = @"^0(10|2[0-5789]|\\\\d{3})\\\\d{7,8}$";
    
    
    //    NSPredicate *regextestmobile = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", MOBILE];
    
    if (([self isValidateByRegex:CM])
        || ([self isValidateByRegex:CU])
        || ([self isValidateByRegex:CT])
        || ([self isValidateByRegex:PHS]))
    {
        return YES;
    }
    else
    {
        return NO;
    }
}

//手机号有效性
- (BOOL)isMobileNumber{
    /**
     *  手机号以13、15、18、170开头，8个 \\d 数字字符
     *  小灵通 区号：010,020,021,022,023,024,025,027,028,029 还有未设置的新区号xxx
     */
    NSString *mobileNoRegex = @"^1((3\\\\d|5[0-35-9]|8[025-9])\\\\d|70[059])\\\\d{7}$";//除4以外的所有个位整数，不能使用[^4,\\\\d]匹配，这里是否iOS Bug?
    NSString *phsRegex =@"^0(10|2[0-57-9]|\\\\d{3})\\\\d{7,8}$";
    
    BOOL ret = [self isValidateByRegex:mobileNoRegex];
    BOOL ret1 = [self isValidateByRegex:phsRegex];
    
    return (ret || ret1);
}

//邮箱
- (BOOL)isEmailAddress{
    NSString *emailRegex = @"[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\\\\.[A-Za-z]{2,4}";
    return [self isValidateByRegex:emailRegex];
}

//身份证号
- (BOOL) simpleVerifyIdentityCardNum
{
    NSString *regex2 = @"^(\\\\d{14}|\\\\d{17})(\\\\d|[xX])$";
    return [self isValidateByRegex:regex2];
}

//车牌
- (BOOL)isCarNumber{
    //车牌号:湘K-DE829 香港车牌号码:粤Z-J499港
    NSString *carRegex = @"^[\\u4e00-\\u9fff]{1}[a-zA-Z]{1}[-][a-zA-Z_0-9]{4}[a-zA-Z_0-9_\\u4e00-\\u9fff]$";//其中\\u4e00-\\u9fa5表示unicode编码中汉字已编码部分，\\u9fa5-\\u9fff是保留部分，将来可能会添加
    return [self isValidateByRegex:carRegex];
}

- (BOOL)isMacAddress{
    NSString * macAddRegex = @"([A-Fa-f\\\\d]{2}:){5}[A-Fa-f\\\\d]{2}";
    return  [self isValidateByRegex:macAddRegex];
}

- (BOOL)isValidUrl
{
    NSString *regex = @"^((http)|(https))+:[^\\\\s]+\\\\.[^\\\\s]*$";
    return [self isValidateByRegex:regex];
}

- (BOOL)isValidChinese;
{
    NSString *chineseRegex = @"^[\\u4e00-\\u9fa5]+$";
    return [self isValidateByRegex:chineseRegex];
}

- (BOOL)isValidPostalcode {
    NSString *postalRegex = @"^[0-8]\\\\d{5}(?!\\\\d)$";
    return [self isValidateByRegex:postalRegex];
}

- (BOOL)isValidTaxNo
{
    NSString *taxNoRegex = @"[0-9]\\\\d{13}([0-9]|X)$";
    return [self isValidateByRegex:taxNoRegex];
}

- (BOOL)isValidWithMinLenth:(NSInteger)minLenth
                   maxLenth:(NSInteger)maxLenth
             containChinese:(BOOL)containChinese
        firstCannotBeDigtal:(BOOL)firstCannotBeDigtal;
{
    //  [\\u4e00-\\u9fa5A-Za-z0-9_]{4,20}
    NSString *hanzi = containChinese ? @"\\u4e00-\\u9fa5" : @"";
    NSString *first = firstCannotBeDigtal ? @"^[a-zA-Z_]" : @"";
    
    NSString *regex = [NSString stringWithFormat:@"%@[%@A-Za-z0-9_]{%d,%d}", first, hanzi, (int)(minLenth-1), (int)(maxLenth-1)];
    return [self isValidateByRegex:regex];
}

- (BOOL)isValidWithMinLenth:(NSInteger)minLenth
                   maxLenth:(NSInteger)maxLenth
             containChinese:(BOOL)containChinese
              containDigtal:(BOOL)containDigtal
              containLetter:(BOOL)containLetter
      containOtherCharacter:(NSString *)containOtherCharacter
        firstCannotBeDigtal:(BOOL)firstCannotBeDigtal;
{
    NSString *hanzi = containChinese ? @"\\u4e00-\\u9fa5" : @"";
    NSString *first = firstCannotBeDigtal ? @"^[a-zA-Z_]" : @"";
    NSString *lengthRegex = [NSString stringWithFormat:@"(?=^.{%@,%@}$)", @(minLenth), @(maxLenth)];
    NSString *digtalRegex = containDigtal ? @"(?=(.*\\\\d.*){1})" : @"";
    NSString *letterRegex = containLetter ? @"(?=(.*[a-zA-Z].*){1})" : @"";
    NSString *characterRegex = [NSString stringWithFormat:@"(?:%@[%@A-Za-z0-9%@]+)", first, hanzi, containOtherCharacter ? containOtherCharacter : @""];
    NSString *regex = [NSString stringWithFormat:@"%@%@%@%@", lengthRegex, digtalRegex, letterRegex, characterRegex];
    return [self isValidateByRegex:regex];
}

#pragma mark - 算法相关
//精确的身份证号码有效性检测
+ (BOOL)accurateVerifyIDCardNumber:(NSString *)value {
    value = [value stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
    
    int length =0;
    if (!value) {
        return NO;
    }else {
        length = (int)value.length;
        
        if (length !=15 && length !=18) {
            return NO;
        }
    }
    // 省份代码
    NSArray *areasArray =@[@"11",@"12", @"13",@"14", @"15",@"21", @"22",@"23", @"31",@"32", @"33",@"34", @"35",@"36", @"37",@"41", @"42",@"43", @"44",@"45", @"46",@"50", @"51",@"52", @"53",@"54", @"61",@"62", @"63",@"64", @"65",@"71", @"81",@"82", @"91"];
    
    NSString *valueStart2 = [value substringToIndex:2];
    BOOL areaFlag =NO;
    for (NSString *areaCode in areasArray) {
        if ([areaCode isEqualToString:valueStart2]) {
            areaFlag =YES;
            break;
        }
    }
    
    if (!areaFlag) {
        return false;
    }
    
    
    NSRegularExpression *regularExpression;
    NSUInteger numberofMatch;
    
    int year =0;
    switch (length) {
        case 15:
            year = [value substringWithRange:NSMakeRange(6,2)].intValue +1900;
            
            if (year %4 ==0 || (year %100 ==0 && year %4 ==0)) {
                
                regularExpression = [[NSRegularExpression alloc] initWithPattern:@"^[1-9][0-9]{5}[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|[1-2][0-9]))[0-9]{3}$"
                                                                         options:NSRegularExpressionCaseInsensitive
                                                                           error:nil];//测试出生日期的合法性
            }else {
                regularExpression = [[NSRegularExpression alloc]initWithPattern:@"^[1-9][0-9]{5}[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))[0-9]{3}$"
                                                                        options:NSRegularExpressionCaseInsensitive
                                                                          error:nil];//测试出生日期的合法性
            }
            numberofMatch = [regularExpression numberOfMatchesInString:value
                                                               options:NSMatchingReportProgress
                                                                 range:NSMakeRange(0, value.length)];
            
            if(numberofMatch >0) {
                return YES;
            }else {
                return NO;
            }
        case 18:
            year = [value substringWithRange:NSMakeRange(6,4)].intValue;
            if (year %4 ==0 || (year %100 ==0 && year %4 ==0)) {
                
                regularExpression = [[NSRegularExpression alloc] initWithPattern:@"^[1-9][0-9]{5}19[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|[1-2][0-9]))[0-9]{3}[0-9Xx]$"
                                                                         options:NSRegularExpressionCaseInsensitive
                                                                           error:nil];//测试出生日期的合法性
            }else {
                regularExpression = [[NSRegularExpression alloc] initWithPattern:@"^[1-9][0-9]{5}19[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))[0-9]{3}[0-9Xx]$"
                                                                         options:NSRegularExpressionCaseInsensitive
                                                                           error:nil];//测试出生日期的合法性
            }
            numberofMatch = [regularExpression numberOfMatchesInString:value
                                                               options:NSMatchingReportProgress
                                                                 range:NSMakeRange(0, value.length)];
            
            if(numberofMatch >0) {
                int S = ([value substringWithRange:NSMakeRange(0,1)].intValue + [value substringWithRange:NSMakeRange(10,1)].intValue) *7 + ([value substringWithRange:NSMakeRange(1,1)].intValue + [value substringWithRange:NSMakeRange(11,1)].intValue) *9 + ([value substringWithRange:NSMakeRange(2,1)].intValue + [value substringWithRange:NSMakeRange(12,1)].intValue) *10 + ([value substringWithRange:NSMakeRange(3,1)].intValue + [value substringWithRange:NSMakeRange(13,1)].intValue) *5 + ([value substringWithRange:NSMakeRange(4,1)].intValue + [value substringWithRange:NSMakeRange(14,1)].intValue) *8 + ([value substringWithRange:NSMakeRange(5,1)].intValue + [value substringWithRange:NSMakeRange(15,1)].intValue) *4 + ([value substringWithRange:NSMakeRange(6,1)].intValue + [value substringWithRange:NSMakeRange(16,1)].intValue) *2 + [value substringWithRange:NSMakeRange(7,1)].intValue *1 + [value substringWithRange:NSMakeRange(8,1)].intValue *6 + [value substringWithRange:NSMakeRange(9,1)].intValue *3;
                int Y = S %11;
                NSString *M =@"F";
                NSString *JYM =@"10X98765432";
                M = [JYM substringWithRange:NSMakeRange(Y,1)];// 判断校验位
                if ([M isEqualToString:[value substringWithRange:NSMakeRange(17,1)]]) {
                    return YES;// 检测ID的校验位
                }else {
                    return NO;
                }
                
            }else {
                return NO;
            }
        default:
            return NO;
    }
}



/** 银行卡号有效性问题Luhn算法
 *  现行 16 位银联卡现行卡号开头 6 位是 622126～622925 之间的，7 到 15 位是银行自定义的，
 *  可能是发卡分行，发卡网点，发卡序号，第 16 位是校验码。
 *  16 位卡号校验位采用 Luhm 校验方法计算：
 *  1，将未带校验位的 15 位卡号从右依次编号 1 到 15，位于奇数位号上的数字乘以 2
 *  2，将奇位乘积的个十位全部相加，再加上所有偶数位上的数字
 *  3，将加法和加上校验位能被 10 整除。
 */
- (BOOL)bankCardluhmCheck{
    
    if (self.length != 19) {
        return NO;
        
    }else{
        NSString * lastNum = [[self substringFromIndex:(self.length-1)] copy];//取出最后一位
        NSString * forwardNum = [[self substringToIndex:(self.length -1)] copy];//前15或18位
        
        NSMutableArray * forwardArr = [[NSMutableArray alloc] initWithCapacity:0];
        for (int i=0; i<forwardNum.length; i++) {
            NSString * subStr = [forwardNum substringWithRange:NSMakeRange(i, 1)];
            [forwardArr addObject:subStr];
        }
        
        NSMutableArray * forwardDescArr = [[NSMutableArray alloc] initWithCapacity:0];
        for (int i = (int)(forwardArr.count-1); i> -1; i--) {//前15位或者前18位倒序存进数组
            [forwardDescArr addObject:forwardArr[i]];
        }
        
        NSMutableArray * arrOddNum = [[NSMutableArray alloc] initWithCapacity:0];//奇数位*2的积 < 9
        NSMutableArray * arrOddNum2 = [[NSMutableArray alloc] initWithCapacity:0];//奇数位*2的积 > 9
        NSMutableArray * arrEvenNum = [[NSMutableArray alloc] initWithCapacity:0];//偶数位数组
        
        for (int i=0; i< forwardDescArr.count; i++) {
            NSInteger num = [forwardDescArr[i] intValue];
            if (i%2) {//偶数位
                [arrEvenNum addObject:[NSNumber numberWithInteger:num]];
            }else{//奇数位
                if (num * 2 < 9) {
                    [arrOddNum addObject:[NSNumber numberWithInteger:num * 2]];
                }else{
                    NSInteger decadeNum = (num * 2) / 10;
                    NSInteger unitNum = (num * 2) % 10;
                    [arrOddNum2 addObject:[NSNumber numberWithInteger:unitNum]];
                    [arrOddNum2 addObject:[NSNumber numberWithInteger:decadeNum]];
                }
            }
        }
        
        __block  NSInteger sumOddNumTotal = 0;
        [arrOddNum enumerateObjectsUsingBlock:^(NSNumber * obj, NSUInteger idx, BOOL *stop) {
            sumOddNumTotal += [obj integerValue];
        }];
        
        __block NSInteger sumOddNum2Total = 0;
        [arrOddNum2 enumerateObjectsUsingBlock:^(NSNumber * obj, NSUInteger idx, BOOL *stop) {
            sumOddNum2Total += [obj integerValue];
        }];
        
        __block NSInteger sumEvenNumTotal =0 ;
        [arrEvenNum enumerateObjectsUsingBlock:^(NSNumber * obj, NSUInteger idx, BOOL *stop) {
            sumEvenNumTotal += [obj integerValue];
        }];
        
        NSInteger lastNumber = [lastNum integerValue];
        
        NSInteger luhmTotal = lastNumber + sumEvenNumTotal + sumOddNum2Total + sumOddNumTotal;
        
        return (luhmTotal%10 ==0)?YES:NO;
    }
}

- (BOOL)isIPAddress{
    NSString *regex = [NSString stringWithFormat:@"^(\\\\d{1,3})\\\\.(\\\\d{1,3})\\\\.(\\\\d{1,3})\\\\.(\\\\d{1,3})$"];
    NSPredicate *pre = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex];
    BOOL rc = [pre evaluateWithObject:self];
    
    if (rc) {
        NSArray *componds = [self componentsSeparatedByString:@","];
        
        BOOL v = YES;
        for (NSString *s in componds) {
            if (s.integerValue > 255) {
                v = NO;
                break;
            }
        }
        
        return v;
    }
    
    return NO;
}



@end
