// Stepstead — iOS Pedometer plugin (CMPedometer) implementasyonu.
#import "pedometer.h"

#import <CoreMotion/CoreMotion.h>
#import <Foundation/Foundation.h>

// Objective-C tarafı: CMPedometer'ı tutar, adım sayısını günceller.
@interface StepsteadPedometer : NSObject
@property(nonatomic, strong) CMPedometer *pedometer;
@property(nonatomic, assign) int stepCount;
@property(nonatomic, strong) NSDate *sessionStart;
@property(nonatomic, assign) BOOL running;
@end

@implementation StepsteadPedometer
@end

static StepsteadPedometer *_ped = nil;

Pedometer *Pedometer::instance = nullptr;

void Pedometer::_bind_methods() {
	ClassDB::bind_method(D_METHOD("is_available"), &Pedometer::is_available);
	ClassDB::bind_method(D_METHOD("start"), &Pedometer::start);
	ClassDB::bind_method(D_METHOD("stop"), &Pedometer::stop);
	ClassDB::bind_method(D_METHOD("get_step_count"), &Pedometer::get_step_count);
}

bool Pedometer::is_available() {
	// Not: iOS Simulator'da daima false döner — gerçek cihaz gerekir.
	return [CMPedometer isStepCountingAvailable] ? true : false;
}

void Pedometer::start() {
	if (![CMPedometer isStepCountingAvailable]) {
		return;
	}
	if (_ped == nil) {
		_ped = [[StepsteadPedometer alloc] init];
		_ped.pedometer = [[CMPedometer alloc] init];
		_ped.stepCount = 0;
	}
	if (_ped.running) {
		return;
	}
	_ped.running = YES;
	_ped.sessionStart = [NSDate date];
	_ped.stepCount = 0;

	// Uygulama açıkken canlı güncelleme. numberOfSteps = sessionStart'tan beri.
	[_ped.pedometer startPedometerUpdatesFromDate:_ped.sessionStart
									  withHandler:^(CMPedometerData *_Nullable data, NSError *_Nullable error) {
										  if (data != nil && error == nil) {
											  _ped.stepCount = [data.numberOfSteps intValue];
										  }
									  }];
}

void Pedometer::stop() {
	if (_ped != nil && _ped.running) {
		[_ped.pedometer stopPedometerUpdates];
		_ped.running = NO;
	}
}

int Pedometer::get_step_count() {
	return _ped != nil ? _ped.stepCount : 0;
}

Pedometer *Pedometer::get_singleton() {
	return instance;
}

Pedometer::Pedometer() {
	ERR_FAIL_COND(instance != nullptr);
	instance = this;
}

Pedometer::~Pedometer() {
	if (_ped != nil) {
		[_ped.pedometer stopPedometerUpdates];
		_ped = nil;
	}
	instance = nullptr;
}