$(document).ready(function() {
	function replaceUrlParam(url, param, value) {
		if (value == null) {
			value = '';
		}

		var pattern = new RegExp('\\b('+param+'=).*?(&|#|$)');
		if (url.search(pattern)>=0) {
			return url.replace(pattern,'$1' + value + '$2');
		}

		url = url.replace(/[?#]$/,'');
		return url + (url.indexOf('?')>0 ? '&' : '?') + param + '=' + value;
	}

	function resetLanguageSelector() {
		var url = new URL(document.location);
		var params = url.searchParams;
		var lang = params.get("lang");

		if (lang != null) {
			$("#language-selector").val(lang);
		} else {
			if($("#pastebin-code-block").length) {
				$("#language-selector").val(
					$("#pastebin-code-block").prop("class").trim().split('-')[1]
				);
			}
		}
	}

	function checkPasswordModal() {
		if ($("#password-modal").length) {
			$('#password-modal').modal('toggle');
		}
	}

	var state = {
		expiry: 0,
		burn: 0,
	};

	resetLanguageSelector();
	checkPasswordModal();

	$("#language-selector").change(function() {
		if ($("#pastebin-code-block").length) {
			$('#pastebin-code-block').attr('class', 'language-' + $("#language-selector").val());
			Prism.highlightElement($('#pastebin-code-block')[0]);
		}
	});

	$("#remove-btn").on("click", function(event) {
		event.preventDefault();

		$.ajax({
			url: window.location.pathname,
			type: 'DELETE',
			success: function(result) {
				uri = "/new";
				uri = replaceUrlParam(uri, 'level', "info");
				uri = replaceUrlParam(uri, 'glyph', "fas fa-info-circle");
				uri = replaceUrlParam(uri, 'msg', "The paste has been successfully removed.");
				window.location.href = encodeURI(uri);
			}
		});
	});

	$("#copy-btn").on("click", function(event) {
		event.preventDefault();

		$(".toolbar-item button").get(0).click();

		var $this = $(this);
		$this.text("Copied!");
		$this.attr("disabled", "disabled");

		setTimeout(function() {
			$this.text("Copy");
			$this.removeAttr("disabled");
		}, 800);

	});

	$("#send-btn").on("click", function(event) {
		event.preventDefault();

		uri = "/";
		uri = replaceUrlParam(uri, 'lang', $("#language-selector").val());
		uri = replaceUrlParam(uri, 'ttl', state.expiry);
		uri = replaceUrlParam(uri, 'burn', state.burn);

		var data = $("#content-textarea").val();
		var pass = $("#pastebin-password").val();

		if ($("#pastebin-password").val().length > 0) {
			data = CryptoJS.AES.encrypt(data, pass).toString();
			uri = replaceUrlParam(uri, 'encrypted', true);
		}

		$.ajax({
			url: uri,
			type: 'POST',
			data: data,
			success: function(result) {
				uri = "/new";
				uri = replaceUrlParam(uri, 'level', "success");
				uri = replaceUrlParam(uri, 'glyph', "fas fa-check");
				uri = replaceUrlParam(uri, 'msg', "The paste has been successfully created:");
				uri = replaceUrlParam(uri, 'url', result);

				window.location.href = encodeURI(uri);
			}
		});
	});

	$('#expiry-dropdown a').click(function(event){
		event.preventDefault();

		state.expiry = $(this).attr("href");
		$('#expiry-dropdown-btn').text("Expires: " + this.innerHTML);
	});

	$('#burn-dropdown a').click(function(event){
		event.preventDefault();

		state.burn = $(this).attr("href");
		$('#burn-dropdown-btn').text("Burn: " + this.innerHTML);
	});

	$('#decrypt-btn').click(function(event) {
		var pass = $("#modal-password").val();
        var data = "";

        if ($("#pastebin-code-block").length) {
		    data = $("#pastebin-code-block").text();
        } else {
		    data = $("#content-textarea").text();
        }

		var decrypted = CryptoJS.AES.decrypt(data, pass).toString(CryptoJS.enc.Utf8);
		if (decrypted.length == 0) {
			$("#modal-alert").removeClass("collapse");
		} else {
            if ($("#pastebin-code-block").length) {
			    $("#pastebin-code-block").text(decrypted);
			    Prism.highlightElement($('#pastebin-code-block')[0]);
            } else {
			    $("#content-textarea").text(decrypted);
            }

			$("#modal-close-btn").click();
			$("#modal-alert").alert('close');
		}
	});
});