$(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 getDefaultExpiryTime() {
        var expiry = $("#expiry-dropdown-btn").text().split("Expires: ")[1];
        return $("#expiry-dropdown a:contains('"+ expiry +"')").attr('href');
    }

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

    resetLanguageSelector();
    checkPasswordModal();
    init_plugins();

    var state = {
        expiry: getDefaultExpiryTime(),
        burn: 0,
    };

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

    $("#remove-btn").on("click", function(event) {
        event.preventDefault();
        $('#deletion-modal').modal('show');
    });

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

        $.ajax({
            url: window.location.pathname,
            type: 'DELETE',
            success: function(result) {
                uri = uri_prefix + "/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_prefix == "" ? "/" : uri_prefix;
        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 = uri_prefix + "/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);
    });

    $('#password-modal').on('shown.bs.modal', function () {
        $('#modal-password').trigger('focus');
    })

    $('#password-modal form').submit(function(event) {
        event.preventDefault();
        $('#decrypt-btn').click();
    });

    $('#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);
                init_plugins();
            } else {
                $("#content-textarea").text(decrypted);
            }

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