/*********************************************************************
 *
 *  $Id: main.m 32622 2018-10-10 13:11:04Z seb $
 *
 *  An example that show how to use a  Yocto-PWM-Rx
 *
 *  You can find more information on our web site:
 *   Yocto-PWM-Rx documentation:
 *      https://www.yoctopuce.com/EN/products/yocto-pwm-rx/doc.html
 *   Objective-C API Reference:
 *      https://www.yoctopuce.com/EN/doc/reference/yoctolib-objc-EN.html
 *
 *********************************************************************/

#import <Foundation/Foundation.h>
#import "yocto_api.h"
#import "yocto_pwmInput.h"

static void usage(void)
{
  NSLog(@"usage: demo <serial_number>");
  NSLog(@"       demo <logical_name>");
  NSLog(@"       demo any (use any discovered device)");
  exit(1);
}

int main(int argc, const char * argv[])
{
  NSError *error;

  if (argc < 2) {
    usage();
  }

  @autoreleasepool {
    // Setup the API to use local USB devices
    if([YAPI RegisterHub:@"usb": &error] != YAPI_SUCCESS) {
      NSLog(@"RegisterHub error: %@", [error localizedDescription]);
      return 1;
    }
    NSString *target = [NSString stringWithUTF8String:argv[1]];

    if ([target isEqualToString:@"any"]) {
      YPwmInput *pwminput = [YPwmInput FirstPwmInput];
      if (pwminput == NULL) {
        NSLog(@"No module connected (check USB cable)");
        return 1;
      }
      target = [[pwminput module] serialNumber];
    }

    YPwmInput *pwmInput1 = [YPwmInput FindPwmInput:
                            [target stringByAppendingString:@".pwmInput1"]];
    YPwmInput *pwmInput2 = [YPwmInput FindPwmInput:
                            [target stringByAppendingString:@".pwmInput2"]];

    while  ([pwmInput1 isOnline]) {
      NSLog(@"PWM1 : %f Hz %f %% %ld pulses",
            [pwmInput1 get_frequency], [pwmInput1 get_dutyCycle],
            [pwmInput1 get_pulseCounter]);
      NSLog(@"PWM2 : %f Hz %f %% %ld pulses",
            [pwmInput2 get_frequency], [pwmInput2 get_dutyCycle],
            [pwmInput2 get_pulseCounter]);
      NSLog(@"  (press Ctrl-C to exit)");
      [YAPI Sleep:1000 :&error];
    }
    NSLog(@"Module disconnected");
    [YAPI FreeAPI];
  }
  return 0;
}
