//
//  MSParamsDecode.m
//  YuMi
//
//  Created by duoban on 2024/4/23.
//

#import "MSParamsDecode.h"

@implementation MSParamsDecode
+ (NSMutableDictionary *)msDecodeParams:(NSMutableDictionary *)params {
    if (!params) {
        params = [NSMutableDictionary dictionary];
    }

    [params setObject:[MSParamsDecode msSign:[params mutableCopy]] forKey:@"pub_sign"];
    return params;
}


+ (NSString *)msSign:(NSMutableDictionary *)dic  {
    [dic removeObjectForKey:@"Accept-Language"];
    [dic removeObjectForKey:@"pub_uid"];
    [dic removeObjectForKey:@"appVersion"];
    [dic removeObjectForKey:@"appVersionCode"];
    [dic removeObjectForKey:@"channel"];
    [dic removeObjectForKey:@"deviceId"];
    [dic removeObjectForKey:@"ispType"];
    [dic removeObjectForKey:@"netType"];
    [dic removeObjectForKey:@"os"];
    [dic removeObjectForKey:@"osVersion"];
    [dic removeObjectForKey:@"app"];
    [dic removeObjectForKey:@"ticket"];
    [dic removeObjectForKey:@"client"];
    [dic removeObjectForKey:@"channel"];
    [dic removeObjectForKey:@"deviceId"];
    [dic removeObjectForKey:@"lang"];
    [dic removeObjectForKey:@"mcc"];
    
    
    NSMutableString *stringA = [NSMutableString string];
    //按字典key升序排序
    NSArray *sortKeys = [[dic allKeys] sortedArrayUsingSelector:@selector(compare:)];
    //拼接格式 “key0=value0&key1=value1&key2=value2”
    for (NSString *key in sortKeys) {
        [stringA appendString:[NSString stringWithFormat:@"%@=%@&", key, dic[key]]];
    }
    //拼接参数加密签名 PARAMSSECRET
    [stringA appendString:[NSString stringWithFormat:@"key=%@", KeyWithType(KeyType_Sign)]];
    //MD5加密签名
    NSString *stringB = [stringA MD5String];
    //返回大写字母
    return stringB.uppercaseString;
}

+ (NSString *)uuidString{
    CFUUIDRef uuid_ref = CFUUIDCreate(NULL);
    CFStringRef uuid_string_ref= CFUUIDCreateString(NULL, uuid_ref);
    NSString *uuid = [NSString stringWithString:(__bridge NSString *)uuid_string_ref];
    CFRelease(uuid_ref);
    CFRelease(uuid_string_ref);
    return [uuid lowercaseString];
}
@end