(function ($) {
    "use strict";
	
	var $window = $(window); 
	var $body = $('body'); 

	/* Preloader Effect */
	$window.on('load', function(){
		$(".preloader").fadeOut(600);
	});

	/* Sticky Header Optimizasyonu */	
	if($('.active-sticky-header').length){
		var $headerSticky = $('header .header-sticky');
		var $headerMain = $("header.main-header");
		var cachedHeight = 0;

		function setHeaderHeight(){
			cachedHeight = $headerSticky.outerHeight();
	 		$headerMain.css("height", cachedHeight);
		}	

		$window.on('load resize', function(){
			setHeaderHeight();
		});
	
		var ticking = false;
		$window.on("scroll", { passive: true }, function() {
			if (!ticking) {
				window.requestAnimationFrame(function() {
					var fromTop = $window.scrollTop();
					if (fromTop > cachedHeight + 100) {
                        $headerSticky.addClass("hide");
                    } else {
                        $headerSticky.removeClass("hide");
                    }
                    if (fromTop > 600) {
                        $headerSticky.addClass("active");
                    } else {
                        $headerSticky.removeClass("active");
                    }
					ticking = false;
				});
				ticking = true;
			}
		});
	}	
	
	/* Slick Menu JS (Staggered) */
    setTimeout(function() {
        $('#menu').slicknav({
            label : '',
            prependTo : '.responsive-menu'
        });
    }, 50);

	if($("a[href='#top']").length){
		$(document).on("click", "a[href='#top']", function() {
			$("html, body").animate({ scrollTop: 0 }, "slow");
			return false;
		});
	}

    /* 
       AGRESİF SIRALI BAŞLATMA (Aggressive Sequential Initialization)
       Layout Thrashing'i önlemek için her bileşene kendi zaman dilimini veriyoruz.
    */
    
    // 1. Hero Swiper (100ms)
    setTimeout(function() {
        if ($('.hero-swiper').length) {
            new Swiper('.hero-swiper', {
                speed: 1000, loop: true, autoplay: { delay: 5000 },
                navigation: { nextEl: '.swiper-button-next', prevEl: '.swiper-button-prev' },
                pagination: { el: '.swiper-pagination', clickable: true }
            });
        }
    }, 100);

    // 2. Services Swiper (250ms)
    setTimeout(function() {
        if ($('.services-slider').length) {
            new Swiper('.services-slider .swiper', {
                slidesPerView: 1, speed: 1000, spaceBetween: 30, loop: true,
                autoplay: { delay: 5000 },
                pagination: { el: '.services-pagination', clickable: true },
                breakpoints: { 768: { slidesPerView: 2 }, 991: { slidesPerView: 3 } }
            });
        }
    }, 250);

    // 3. Testimonial & Client Swipers (400ms)
    setTimeout(function() {
        if ($('.testimonial-slider').length) {
            new Swiper('.testimonial-slider .swiper', {
                slidesPerView: 1, speed: 1000, spaceBetween: 30, loop: true,
                autoplay: { delay: 5000 },
                pagination: { el: '.testimonial-pagination', clickable: true },
                navigation: { nextEl: '.testimonial-button-next', prevEl: '.testimonial-button-prev' },
                breakpoints: { 768: { slidesPerView: 2 }, 991: { slidesPerView: 3 } }
            });
        }
        if ($('.hero-client-slider').length) {
            new Swiper('.hero-client-slider .swiper', {
                slidesPerView: 2, speed: 1000, spaceBetween: 30, loop: true,
                autoplay: { delay: 5000 },
                breakpoints: { 768: { slidesPerView: 4 }, 991: { slidesPerView: 5 } }
            });
        }
    }, 400);

    // 4. Diğer Sliderlar (550ms)
    setTimeout(function() {
        if ($('.hero-slider-layout .swiper').length) {
            new Swiper('.hero-slider-layout .swiper', {
                slidesPerView: 1, speed: 1000, loop: true, autoplay: { delay: 4000 },
                pagination: { el: '.hero-pagination', clickable: true }
            });
        }
        if ($('.service-single-slider').length) {
            new Swiper('.service-single-slider .swiper', {
                slidesPerView: 1, speed: 1000, spaceBetween: 30, loop: true,
                autoplay: { delay: 5000 },
                pagination: { el: '.service-pagination', clickable: true }
            });
        }
    }, 550);

    // 5. WOW.js Animasyonları (700ms)
    setTimeout(function() {
        if ($('.wow').length) {
            new WOW().init();
        }
    }, 700);

    // 6. GSAP & Metin Efektleri (850ms)
    setTimeout(function() {
        if ($('.reveal').length) {
            gsap.registerPlugin(ScrollTrigger);
            let revealContainers = document.querySelectorAll(".reveal");
            revealContainers.forEach((container) => {
                let image = container.querySelector("img");
                let tl = gsap.timeline({
                    scrollTrigger: { trigger: container, toggleActions: "restart none none reset" }
                });
                tl.set(container, { autoAlpha: 1 });
                tl.from(container, 1.5, { xPercent: -100, ease: Power2.out });
                tl.from(image, 1.5, { xPercent: 100, scale: 1.3, delay: -1.5, ease: Power2.out });
            });
        }
        if ($('.split-text-anim').length) {
            let st = $(".split-text-anim");
            if (st.length) {
                gsap.registerPlugin(SplitText, ScrollTrigger);
                st.each(function(index, el) {
                    const mySplitText = new SplitText(el, { type: "lines,words,chars" });
                    const chars = mySplitText.chars;
                    gsap.from(chars, {
                        scrollTrigger: { trigger: el, start: "top 90%", end: "top 60%", markers: false, toggleActions: "play none none none" },
                        duration: 0.8, stagger: 0.02, opacity: 0, y: 20, ease: "power3.out"
                    });
                });
            }
        }
    }, 850);

    // 7. Ağır Medya & Parallax (1000ms)
    setTimeout(function() {
        if ($('.parallaxie').length && $(window).width() > 991) {
            $('.parallaxie').parallaxie({ speed: 0.55, offset: 0 });
        }
        if ($('#herovideo').length) {
            $("#herovideo").YTPlayer();
        }
        if ($('.counter').length) {
            $('.counter').counterUp({ delay: 6, time: 2000 });
        }
        if ($('.popup-video').length) {
            $('.popup-video').magnificPopup({ type: 'iframe', mainClass: 'mfp-fade', removalDelay: 160, preloader: false, fixedContentPos: true });
        }
        if ($('.gallery-items').length) {
            $('.gallery-items').magnificPopup({
                delegate: 'a', type: 'image', closeOnContentClick: false, closeBtnInside: false,
                mainClass: 'mfp-with-zoom', image: { verticalFit: true }, gallery: { enabled: true },
                zoom: { enabled: true, duration: 300, opener: function(element) { return element.find('img'); } }
            });
        }
    }, 1000);

	/* Contact form validation */
	var $contactform = $("#contactForm");
	if($contactform.length) {
		$contactform.validator({focus: false}).on("submit", function (event) {
			if (!event.isDefaultPrevented()) {
				event.preventDefault();
				submitForm();
			}
		});
	}

	function submitForm(){
		$.ajax({
			type: "POST",
			url: "form-process.php",
			data: $contactform.serialize(),
			success : function(text){
				if (text === "success"){
					formSuccess();
				} else {
					submitMSG(false,text);
				}
			}
		});
	}

	function formSuccess(){
		$contactform[0].reset();
		submitMSG(true, "Message Sent Successfully!")
	}

	function submitMSG(valid, msg){
		var msgClasses = valid ? "h4 text-success" : "h4 text-danger";
		$("#msgSubmit").removeClass().addClass(msgClasses).text(msg);
	}

	/* Appointment form validation */
	var $appointmentForm = $("#appointmentForm");
	if($appointmentForm.length) {
		$appointmentForm.validator({focus: false}).on("submit", function (event) {
			if (!event.isDefaultPrevented()) {
				event.preventDefault();
				submitappointmentForm();
			}
		});
	}

	function submitappointmentForm(){
		$.ajax({
			type: "POST",
			url: "form-appointment.php",
			data: $appointmentForm.serialize(),
			success : function(text){
				if (text === "success"){
					appointmentformSuccess();
				} else {
					appointmentsubmitMSG(false,text);
				}
			}
		});
	}

	function appointmentformSuccess(){
		$appointmentForm[0].reset();
		appointmentsubmitMSG(true, "Message Sent Successfully!")
	}

	function appointmentsubmitMSG(valid, msg){
		var msgClasses = valid ? "h3 text-success" : "h3 text-danger";
		$("#msgSubmit").removeClass().addClass(msgClasses).text(msg);
	}
	
})(jQuery);