Cycle temperature

main.m

#import <Foundation/Foundation.h>

// Partial header for CBBlueLightClient in private CoreBrightness API
@interface CBBlueLightClient : NSObject
- (BOOL)setStrength:(float)strength commit:(BOOL)commit;
- (BOOL)setEnabled:(BOOL)enabled;
@end

int main(int argc, const char * argv[]) {
    CBBlueLightClient *client = [[CBBlueLightClient alloc] init];

    float min = 1;
    float max = 100;
    float cycle_time = 90.0;
    float update_interval = 3.0;
    float range = max - min;
    
    if (argc > 1) {
        cycle_time = [[NSString stringWithUTF8String:argv[1]] floatValue];
        update_interval = [[NSString stringWithUTF8String:argv[2]] floatValue];
    }
    
    float acc = range * update_interval / cycle_time;
    
    float current_str = 1;
    bool is_inc = true;
    while(true) {
        if (current_str >= 100){
            current_str = 100;
            is_inc = false;
        } else if (current_str <= 1) {
            current_str = 1;
            is_inc = true;
        }
        [client setStrength:current_str/100.0 commit:true];
        [client setEnabled:true];
//        NSLog(@"%@", [NSString stringWithFormat:@"%1.2f", current_str]);
        current_str += is_inc ? acc : -acc;
        [NSThread sleepForTimeInterval:update_interval];
    }
    return 0;
}