#import "LegacyComponentsInternal.h"

#import "TGLocalization.h"

#import <UIKit/UIKit.h>

TGLocalization *effectiveLocalization() {
    return [[LegacyComponentsGlobals provider] effectiveLocalization];
}

NSString *TGLocalized(NSString *s) {
    return [effectiveLocalization() get:s];
}

bool TGObjectCompare(id obj1, id obj2) {
    if (obj1 == nil && obj2 == nil)
        return true;
    
    return [obj1 isEqual:obj2];
}

bool TGStringCompare(NSString *s1, NSString *s2) {
    if (s1.length == 0 && s2.length == 0)
        return true;
    
    if ((s1 == nil) != (s2 == nil))
        return false;
    
    return s1 == nil || [s1 isEqualToString:s2];
}

void TGLog(NSString *format, ...)
{
    va_list L;
    va_start(L, format);
    [[LegacyComponentsGlobals provider] log:format :L];
    va_end(L);
}

int iosMajorVersion()
{
    static bool initialized = false;
    static int version = 7;
    if (!initialized)
    {
        switch ([[[UIDevice currentDevice] systemVersion] intValue])
        {
            case 4:
                version = 4;
                break;
            case 5:
                version = 5;
                break;
            case 6:
                version = 6;
                break;
            case 7:
                version = 7;
                break;
            case 8:
                version = 8;
                break;
            case 9:
                version = 9;
                break;
            case 10:
                version = 10;
                break;
            case 11:
                version = 11;
                break;
            default:
                version = 9;
                break;
        }
        
        initialized = true;
    }
    return version;
}

int iosMinorVersion()
{
    static bool initialized = false;
    static int version = 0;
    if (!initialized)
    {
        NSString *versionString = [[UIDevice currentDevice] systemVersion];
        NSRange range = [versionString rangeOfString:@"."];
        if (range.location != NSNotFound)
            version = [[versionString substringFromIndex:range.location + 1] intValue];
        
        initialized = true;
    }
    return version;
}

NSString *TGEncodeText(NSString *string, int key)
{
    NSMutableString *result = [[NSMutableString alloc] init];
    
    for (int i = 0; i < (int)[string length]; i++)
    {
        unichar c = [string characterAtIndex:i];
        c += key;
        [result appendString:[NSString stringWithCharacters:&c length:1]];
    }
    
    return result;
}