//
//  XSUtils.h
//  XenonSDK
//
//  Created by SAGESSE on 2019/5/28.
//  Copyright © 2019 SAGESSE. All rights reserved.
//

#import <UIKit/UIKit.h>

id sdk_md5(id value);
id sdk_signature(id value, id key);

id sdk_encrypt(id value, id key);
id sdk_decrypt(id value, id key);

BOOL sdk_verifyPhone(id value);

FOUNDATION_STATIC_INLINE CGFloat CGFloatBasedI375(CGFloat value) {
    return trunc(value * (UIScreen.mainScreen.nativeBounds.size.width / UIScreen.mainScreen.nativeScale / 375) * UIScreen.mainScreen.scale) / UIScreen.mainScreen.scale;
}

FOUNDATION_STATIC_INLINE CGFloat CGFloatBasedI414(CGFloat value) {
    return trunc(value * (UIScreen.mainScreen.nativeBounds.size.width / UIScreen.mainScreen.nativeScale / 414) * UIScreen.mainScreen.scale) / UIScreen.mainScreen.scale;
}

FOUNDATION_STATIC_INLINE id fqsd(id s) {
    
    NSData* d = [[NSData alloc] initWithBase64EncodedString:s options:0];
    NSUInteger len = d.length - 1 - 4;
    if (len == 0) {
        return s;
    }
    
    uint32_t o = 0;
    char* source = (void*)d.bytes; // utf8-ptr
    char* destination = malloc(len + 1); // output
    
    memcpy(&o, source, 4);
    char offset = o % 256; // 0-255
    
    for (int i = 0; i < len; ++i) {
        destination[i] = source[4 + (i + o) % len] + offset--;
    }
    destination[len] = 0;
    
    id result = [NSString stringWithUTF8String:destination];
    free(destination);
    return result;
}