/*
* Author:      Marco Kuiper (http://www.marcofolio.net/)
*/

// Speed of the automatic slideshow
var slideshowSpeed = 10000;

// Variable to store the images we need to set as background
// which also includes some text and url's.

$(document).ready(function() {

	// Backwards navigation
	$("#back").click(function() {
		stopAnimation();
		navigate("back");
	});

	// Forward navigation
	$("#next").click(function() {
		stopAnimation();
		navigate("next");
	});

	// Show 1 navigation
	$("#show1").click(function() {
		stopAnimation();
		navigate("show1");
	});

	// Show 2 navigation
	$("#show2").click(function() {
		stopAnimation();
		navigate("show2");
	});

	// Show 3 navigation
	$("#show3").click(function() {
		stopAnimation();
		navigate("show3");
	});

	// Show 4 navigation
	$("#show4").click(function() {
		stopAnimation();
		navigate("show4");
	});

	// Show 5 navigation
	$("#show5").click(function() {
		stopAnimation();
		navigate("show5");
	});

	var interval;
	$("#control").toggle(function() {
		stopAnimation();
	}, function() {
		// Change the background image to "pause"
		//$(this).css({ "background-image" : "url(images/btn_pause.png)" });

		// Show the next image
		navigate("next");

		// Start playing the animation
		interval = setInterval(function() {
			navigate("next");
		}, slideshowSpeed);
	});


	var activeContainer = 1;
	var currentImg = 0;
	var animating = false;
	var navigate = function(direction) {
		// Check if no animation is running. If it is, prevent the action
		if (animating) {
			return;
		}

		switch (direction) {
			case "next":
				currentImg++;
				if (currentImg == photos.length + 1) {
					currentImg = 1;
				}
				break;
			case "show1":
				currentImg = 1;
				//   $("#show1").css({ "color": "#ffffff" });
				break;
			case "show2":
				currentImg = 2;
				//$("#show2").css({ "color": "#ffffff" });
				break;
			case "show3":
				currentImg = 3;
				//$("#show3").css({ "color": "#ffffff" });
				break;
			case "show4":
				currentImg = 4;
				//$("#show4").css({ "color": "#ffffff" });
				break;
			case "show5":
				currentImg = 5;
				//$("#show5").css({ "color": "#ffffff" });
				break;
			default:
				currentImg--;
				if (currentImg == 0) {
					currentImg = photos.length;
				}
				break;
		}

		// Set slide number color
		$("#show1").css({ "color": "#ffffff" });
		$("#show2").css({ "color": "#ffffff" });
		$("#show3").css({ "color": "#ffffff" });
		$("#show4").css({ "color": "#ffffff" });
		$("#show5").css({ "color": "#ffffff" });

		switch (currentImg) {
			case 1:
				$("#show1").css({ "color": "#2f2127" });
				break;
			case 2:
				$("#show2").css({ "color": "#2f2127" });
				break;
			case 3:
				$("#show3").css({ "color": "#2f2127" });
				break;
			case 4:
				$("#show4").css({ "color": "#2f2127" });
				break;
			case 5:
				$("#show5").css({ "color": "#2f2127" });
				break;
		}

		// Check which current image we need to show

		/*
		if(direction == "next") {
		currentImg++;
		if(currentImg == photos.length + 1) {
		currentImg = 1;
		}
		} else {
		currentImg--;
		if(currentImg == 0) {
		currentImg = photos.length;
		}
		}
		*/

		// Check which container we need to use
		var currentContainer = activeContainer;
		if (activeContainer == 1) {
			activeContainer = 2;
		} else {
			activeContainer = 1;
		}

		showImage(photos[currentImg - 1], currentContainer, activeContainer);

	};

	var currentZindex = -1;
	var showImage = function(photoObject, currentContainer, activeContainer) {
		animating = true;

		// Make sure the new container is always on the background
		currentZindex--;

		// Set the background image of the new active container

		$("#headerimg" + activeContainer).css({
			"background-image": "url(" + photoObject.image + ")",
			"display": "block",
			"z-index": currentZindex
		});

		// Hide the header text
		//$("#headertxt").css({ "display": "none" });
		$("#headertxt").fadeOut(function() {

			// Set the new header text
			$("#firstline").html(photoObject.firstline);
			$("#secondline")
				.attr("href", photoObject.url)
				.html(photoObject.secondline);
			$("#pictureduri")
				.attr("href", photoObject.url)
				.html(photoObject.title);
			$("#descript")
				.attr("href", photoObject.url)
				.html(photoObject.firstline);
			$("#headertxt").fadeIn();
		});


		// Fade out the current container
		// and display the header text when animation is complete
		$("#headerimg" + currentContainer).fadeOut(function() {
			setTimeout(function() {
				//$("#headertxt").css({ "display": "block" });
				animating = false;
			}, 100);
		});
	};

	var stopAnimation = function() {
		// Change the background image to "play"
		//$("#control").css({ "background-image" : "url(images/btn_play.png)" });

		// Clear the interval
		clearInterval(interval);
	};

	// We should statically set the first image
	navigate("next");

	// Start playing the animation
	interval = setInterval(function() {
		navigate("next");
	}, slideshowSpeed);

});