/*
 * Sakura Yuuno
 */

// Notification class
interface Notification {
    read: boolean;
    title: string;
    text: string;
    link: string;
    img: string;
    timeout: number;
    sound: boolean;
}

// Spawns a notification
function notifyUI(content: Notification): void {
    // Grab the container and create an ID
    var cont: HTMLElement = document.getElementById('notifications');
    var id: string = 'sakura-notification-' + Date.now();

    // Create the elements
    var alert: HTMLDivElement = document.createElement('div');
    var aIcon: HTMLDivElement = document.createElement('div');
    var aCont: HTMLDivElement = document.createElement('div');
    var aTitle: HTMLDivElement = document.createElement('div');
    var aText: HTMLDivElement = document.createElement('div');
    var aClose: HTMLDivElement = document.createElement('div');
    var aCIcon: HTMLDivElement = document.createElement('div');
    var aClear: HTMLDivElement = document.createElement('div');
    var aIconCont: any;
    
    // Add attributes to the main element
    alert.className = 'notification-enter';
    alert.id = id;

    // Add the icon
    if ((typeof content.img).toLowerCase() === 'undefined' && content.img == null && !(content.img.length > 1)) {
        aIconCont = document.createElement('div');
        aIconCont.className = 'font-icon fa fa-info fa-4x';
    } else if (content.img.substr(0, 5) == 'FONT:') {
        aIconCont = document.createElement('div');
        aIconCont.className = 'font-icon fa ' + content.img.replace('FONT:', '') + ' fa-4x';
    } else {
        aIconCont = document.createElement('img');
        aIconCont.alt = id;
        aIconCont.img = content.img;
    }

    aIcon.appendChild(aIconCont);
    aIcon.className = 'notification-icon';
    alert.appendChild(aIcon);

    // Add the content
    aCont.className = 'notification-content';
    aTitle.className = 'notification-title';
    aText.className = 'notifcation-text';
    aTitle.textContent = content.title;
    aText.textContent = content.text;

    // Check if a link exists and add if it does
    if ((typeof content.link).toLowerCase() !== 'undefined' && content.link !== null && content.link.length > 1) {
        alert.setAttribute('sakurahref', content.link);
        aCont.setAttribute('onclick', content.link.substr(0, 11) == 'javascript:' ? content.link.substring(11) : 'notifyOpen(this.parentNode.id);');
    }

    // Append stuff
    aCont.appendChild(aTitle);
    aCont.appendChild(aText);
    alert.appendChild(aCont);

    // Add the close button
    aClose.className = 'notification-close';
    aClose.setAttribute('onclick', 'notifyClose(this.parentNode.id);');
    aClose.appendChild(aCIcon);
    alert.appendChild(aClose);

    // Append the notification to the document
    cont.appendChild(alert);

    // Play sound if request
    if (content.sound) {
        // Create the elements
        var sound: HTMLAudioElement = document.createElement('audio');
        var mp3: HTMLSourceElement = document.createElement('source');
        var ogg: HTMLSourceElement = document.createElement('source');

        // Assign attribs
        mp3.type = 'audio/mp3';
        ogg.type = 'audio/ogg';
        mp3.src = sakuraVars.content_path + '/sounds/notify.mp3';
        ogg.src = sakuraVars.content_path + '/sounds/notify.ogg';

        // Append
        sound.appendChild(mp3);
        sound.appendChild(ogg);

        // And play
        sound.play();
    }

    // If keepalive is 0 keep the notification open forever
    if (content.timeout > 0) {
        // Set a timeout and close after an amount
        setTimeout(() => {
            notifyClose(id);
        }, content.timeout);
    }
}

// Closing a notification
function notifyClose(id: string): void {
    // Get the element
    var e: HTMLElement = document.getElementById(id);

    // Add the animation
    e.className = 'notification-exit';

    // Remove after 410 ms
    setTimeout(() => {
        Sakura.removeById(id);
    }, 410);
}

// Opening an alerted link
function notifyOpen(id: string): void {
    var sakuraHref: string = document.getElementById(id).getAttribute('sakurahref');
    
    if ((typeof sakuraHref).toLowerCase() !== 'undefined') {
        window.location.assign(sakuraHref);
    }
}

// Request notifications
function notifyRequest(session: string): void {
    // Check if the document isn't hidden
    if (document.hidden) {
        return;
    }

    // Create AJAX object
    var get: AJAX = new AJAX();
    get.setUrl('/settings.php?request-notifications=true&time=' + Sakura.epoch() + '&session=' + session);

    // Add callbacks
    get.addCallback(200, () => {
        // Assign the parsed JSON
        var data: Notification = JSON.parse(get.response());

        // Check if nothing went wrong
        if ((typeof data).toLowerCase() === 'undefined') {
            // Inform the user
            throw "No or invalid data was returned";

            // Stop
            return;
        }

        // Create an object for every notification
        for (var id in data) {
            notifyUI(data[id]);
        }
    });

    get.start(HTTPMethods.GET);
}

// Show the full page busy window
function ajaxBusyView(show: boolean, message: string = null, type: string = null): void {
    // Get elements
    var cont: HTMLElement = document.getElementById('ajaxBusy');
    var stat: HTMLElement = document.getElementById('ajaxStatus');
    var anim: HTMLElement = document.getElementById('ajaxAnimate');
    var body: HTMLElement = document.getElementById('contentwrapper');
    var icon: string = 'fa fa-4x ';

    // Select the proper icon
    switch (type) {
        case 'ok':
            icon += 'fa-check';
            break;
        case 'fail':
            icon += 'fa-remove';
            break;
        case 'busy':
        default:
            icon += 'fa-refresh fa-spin';
            break;
    }

    // If request to show the window, build it
    if (show) {
        if ((typeof cont).toLowerCase() === 'undefined' || cont === null) {
            // Container
            var cCont = document.createElement('div');
            cCont.className = 'ajax-busy';
            cCont.id = 'ajaxBusy';

            // Inner
            var cInner = document.createElement('div');
            cInner.className = 'ajax-inner';
            cCont.appendChild(cInner);

            // Desc
            var cMsg = document.createElement('h2');
            cMsg.id = 'ajaxStatus';
            cInner.appendChild(cMsg);

            // Icon
            var cIco = document.createElement('div');
            cIco.id = 'ajaxAnimate';
            cInner.appendChild(cIco);

            // Append to document
            body.appendChild(cCont);

            // Reassign
            cont = document.getElementById('ajaxBusy');
            stat = document.getElementById('ajaxStatus');
            anim = document.getElementById('ajaxAnimate');
        }

        // Update the icon
        anim.className = icon;

        // Update the message
        stat.textContent = (message === null ? '' : message);
    } else {
        if (cont !== null) {
            var out: any = setInterval(() => {
                if (cont.style.opacity === null || cont.style.opacity === "") {
                    cont.style.opacity = "1";
                }

                // If the value isn't 0 yet subtract by .1
                if (parseInt(cont.style.opacity) > 0) {
                    cont.style.opacity = (parseInt(cont.style.opacity) - 0.1).toString();
                } else {
                    Sakura.removeById('ajaxBusy');
                    clearInterval(out);
                }
            }, 10);
        }
    }
}

// Making a post request using AJAX
function ajaxPost(url: string, data: Object, callback: Function): AJAX {
    // Create AJAX
    var request = new AJAX();

    // Set url
    request.setUrl(url);

    // Add callbacks
    request.addCallback(200, function () {
        callback.call(request.response())
    });
    request.addCallback(0, function () {
        ajaxBusyView(false);

        throw "POST Request failed";
    });

    // Add header
    request.addHeader('Content-Type', 'application/x-www-form-urlencoded');

    // Set the post data
    request.setSend(data);

    // Make the request
    request.start(HTTPMethods.POST);

    // Return the AJAX object
    return request;
}

// Convert a href attr to an object
function prepareAjaxLink(linkId: any, callback: Function, attrs: string = null): void {
    // Get element
    var link: HTMLElement = (typeof linkId).toLowerCase() === 'object' ? linkId : document.getElementById(linkId);

    // Catch null
    if (link === null) {
        return;
    }

    // Get the raw HREF value
    var href: string = link.getAttribute('href');

    // Get the action
    var action: string = href.split('?')[0];

    // Split the request variables
    var varEarly: string[] = href.split('?')[1].split('&');

    // Create storage thing
    var variables: Object = new Object();

    // Split them
    for (var k in varEarly) {
        // Split
        var newVar: string[] = varEarly[k].split('=');

        // Push
        variables[newVar[0]] = newVar[1];
    }

    // Add ajax=true
    variables['ajax'] = true;

    // Update link attributes
    link.setAttribute('href', 'javascript:void(0);');
    link.setAttribute('onclick', callback + '(\'' + action + '\', JSON.parse(\'' + JSON.stringify(variables) + '\')' + (typeof attrs != 'undefined' ? attrs : '') + ');');
}

// Prepare a form for an AJAX request
function prepareAjaxForm(formId: string, message: string, resetCaptcha: boolean = false): void {
    // Get the form
    var form: HTMLElement = document.getElementById(formId);

    // Create hidden ajax input
    var hide: HTMLInputElement = document.createElement('input');

    // Set the attributes
    hide.name = 'ajax';
    hide.value = 'true';
    hide.type = 'hidden';
    form.appendChild(hide);

    // Update form
    form.setAttribute('onsubmit', 'submitPost(\'' + form.getAttribute('action') + '\', formToObject(\'' + formId + '\'), true, \'' + (message ? message : 'Please wait...') + '\', ' + (resetCaptcha ? 'true' : 'false') + ');');
    form.setAttribute('action', 'javascript:void(0);');
}

// Convert form to an object
function formToObject(formId: string): Object {
    // Get the form
    var form: any = document.getElementById(formId);

    // Make an object for the request parts
    var requestParts: Object = new Object();

    // Get all the children with a name attr
    var children = form.querySelectorAll('[name]');

    // Sort the children and make them ready for submission
    for (var i in children) {
        if ((typeof children[i]).toLowerCase() === 'object') {
            requestParts[children[i].name] = ((typeof children[i].type !== "undefined" && children[i].type.toLowerCase() == "checkbox") ? (children[i].checked ? 1 : 0) : children[i].value);
        }
    }

    // Return the request parts
    return requestParts;
}

// Quickly building a form
function generateForm(formId: string, formAttr: Object, formData: Object, appendTo: string = null): HTMLFormElement {
    // Create form element
    var form: HTMLFormElement = document.createElement('form');
    form.id = formId;

    // Set additional attrs
    for (var c in formAttr) {
        form.setAttribute(c, formAttr[c]);
    }

    // Set data
    for (var a in formData) {
        var b: HTMLInputElement = document.createElement('input');
        b.type = 'hidden';
        b.name = a;
        b.value = formData[a];
        form.appendChild(b);
    }

    // Append to something if requested
    if (appendTo !== null) {
        document.getElementById(appendTo).appendChild(form);
    }

    return form;
}

// Submitting a post using AJAX
function submitPost(action: string, requestParts: Object, busyView: boolean, msg: string, resetCaptcha: boolean): void {
    // If requested display the busy thing
    if (busyView) {
        ajaxBusyView(true, msg, 'busy');
    }

    // Submit the AJAX
    var request = ajaxPost(action, requestParts, () => {
        submitPostHandler(request.response(), busyView, resetCaptcha);
    });
}

// Handling a submitted form using AJAX
function submitPostHandler(data: string, busyView: boolean, resetCaptcha: boolean): void {
    // Split the result
    var result: string[] = data.split('|');

    // If using the bust view thing update the text displayed to the return of the request
    if (busyView) {
        ajaxBusyView(true, result[0], (result[1] == '1' ? 'ok' : 'fail'));
    }

    // Reset captcha
    if (resetCaptcha && result[1] != '1' && sakuraVars.recaptchaEnabled != '0') {
        grecaptcha.reset();
    }

    setTimeout(() => {
        if (busyView) {
            ajaxBusyView(false);
        }

        if (result[1] == '1') {
            window.location.assign(result[2]);
        }
    }, 2000);
}

// Check if a password is within the minimum entropy value
function checkPwdEntropy(pwd: string): boolean {
    return (Sakura.entropy(pwd) >= sakuraVars.minPwdEntropy);
}

// Check registration variables
function registerVarCheck(id: string, mode: string, option: any = null): void {
    // Get the element we're working with
    var input: HTMLElement = document.getElementById(id);
    var check: boolean = null;

    // Use the proper mode
    switch (mode) {
        case 'confirmpw':
            option = document.getElementById(option);
            check = input.getAttribute('value') === option.value;
            break;

        case 'password':
            check = checkPwdEntropy(input.getAttribute('value'));
            break;

        case 'email':
            check = Sakura.validateEmail(input.getAttribute('value'));
            break;

        case 'username':
        default:
            check = Sakura.stringLength(input.getAttribute('value'), sakuraVars.minUserLen, sakuraVars.maxUserLen);
            break;
    }

    if (input.className.indexOf(check ? 'green' : 'red') < 0) {
        input.className = input.className + ' ' + (check ? 'green' : 'red');
    }

    if (input.className.indexOf(check ? 'red' : 'green') > 0) {
        input.className = input.className.replace(check ? 'red' : 'green', '');
    }
}

// Initialising the element parallax functionality
function initialiseParallax(id: string) {
    // Assign the element to a variable
    var parallax: HTMLElement = document.getElementById(id);

    // Set proper position values
    parallax.style.top = '-2.5px';
    parallax.style.bottom = '-2.5px';
    parallax.style.left = '-2.5px';
    parallax.style.right = '-2.5px';

    // Add the event listener to the body element
    document.addEventListener("mousemove", (e) => {
        // Alter the position of the parallaxed element
        parallax.style.top = convertParallaxPositionValue(e.clientY, true, false) + 'px';
        parallax.style.bottom = convertParallaxPositionValue(e.clientY, true, true) + 'px';
        parallax.style.left = convertParallaxPositionValue(e.clientX, false, false) + 'px';
        parallax.style.right = convertParallaxPositionValue(e.clientX, false, true) + 'px';
    });
}

// Converting the position value of the mouseover to a pixel value
function convertParallaxPositionValue(pos: number, dir: boolean, neg: boolean): number {
    // Get the body element
    var body: HTMLElement = document.getElementsByTagName('body')[0];

    // Get percentage of current position
    var position: number = (pos / (dir ? body.clientHeight : body.clientWidth)) * 100;

    // If someone decided to fuck with the inputs reset it to 0%
    if (position < 0 || position > 100) {
        position = 0;
    }

    // Do the first maths
    position = (position / (dir ? 25 : 20)) - 2.5;

    // If the negative flag is set inverse the number
    if (neg) {
        position = -position;
    }

    // Subtract another 2.5 to make the element not go all over the place
    position = position - 2.5;

    // Return the proper position value
    return position;
}

// """"""""Smooth"""""""" scrolling
function scrollToTop(): void {
    // Get the current position
    var windowY: number = window.pageYOffset - 100;

    // Move up
    window.scrollTo(0, windowY);

    // Keep executing this function till we're at the top
    if (windowY + 1 > 0) {
        setTimeout(() => { scrollToTop(); }, 10);
    }
}

// Replace some special tags
function replaceTag(tag: string): string {
    return { '&': '&amp;', '<': '&lt;', '>': '&gt;' }[tag] || tag;
}

// ^
function safeTagsReplace(str: string): string {
    return str.replace(/[&<>]/g, replaceTag);
}

// Open a comment reply field
function commentReply(id: number, session: string, category: string, action: string, avatar: string): void {
    // Find subject post
    var replyingTo: HTMLElement = document.getElementById('comment-' + id);

    // Check if it actually exists
    if ((typeof replyingTo).toLowerCase() === 'undefined') {
        return;
    }

    // Attempt to get previously created box
    var replyBox: HTMLElement = document.getElementById('comment-reply-container-' + id);

    // Remove it if it already exists
    if (replyBox) {
        Sakura.removeById('comment-reply-container-' + id);
        return;
    }

    // Container
    var replyContainer: HTMLLIElement = document.createElement('li');
    replyContainer.id = 'comment-reply-container-' + id;

    // Form
    var replyForm: HTMLFormElement = document.createElement('form');
    replyForm.id = 'comment-reply-' + id;
    replyForm.action = action;
    replyForm.method = 'post';

    // Session
    var replyInput: HTMLInputElement = document.createElement('input');
    replyInput.type = 'hidden';
    replyInput.name = 'session';
    replyInput.value = session;
    replyForm.appendChild(replyInput);

    // Category
    var replyInput: HTMLInputElement = document.createElement('input');
    replyInput.type = 'hidden';
    replyInput.name = 'category';
    replyInput.value = category;
    replyForm.appendChild(replyInput);

    // Reply ID
    var replyInput: HTMLInputElement = document.createElement('input');
    replyInput.type = 'hidden';
    replyInput.name = 'replyto';
    replyInput.value = id.toString();
    replyForm.appendChild(replyInput);

    // Mode
    var replyInput: HTMLInputElement = document.createElement('input');
    replyInput.type = 'hidden';
    replyInput.name = 'mode';
    replyInput.value = 'comment';
    replyForm.appendChild(replyInput);

    // Comment container
    var replyDiv: HTMLDivElement = document.createElement('div');
    replyDiv.className = 'comment';

    // Avatar
    var replyAvatar: HTMLDivElement = document.createElement('div');
    replyAvatar.className = 'comment-avatar';
    replyAvatar.style.backgroundImage = 'url(' + avatar + ')';
    replyDiv.appendChild(replyAvatar);

    // Pointer
    var replyPoint: HTMLDivElement = document.createElement('div');
    replyPoint.className = 'comment-pointer';
    replyDiv.appendChild(replyPoint);

    // Textarea
    var replyText: HTMLTextAreaElement = document.createElement('textarea');
    replyText.className = 'comment-content';
    replyText.name = 'comment';
    replyDiv.appendChild(replyText);

    // Submit
    var replySubmit: HTMLInputElement = document.createElement('input');
    replySubmit.className = 'comment-submit';
    replySubmit.type = 'submit';
    replySubmit.name = 'submit';
    replySubmit.value = "\uf1d8";
    replyDiv.appendChild(replySubmit);

    // Append to form
    replyForm.appendChild(replyDiv);

    // Append form to container
    replyContainer.appendChild(replyForm);

    // Insert the HTML
    if (replyingTo.children[1].children.length > 0) {
        replyingTo.children[1].insertBefore(replyContainer, replyingTo.children[1].firstChild);
    } else {
        replyingTo.children[1].appendChild(replyContainer);
    }

    // Prepare AJAX submission
    prepareAjaxForm(replyForm.id, 'Replying...');
}

// Inserting text into text box
// Borrowed from http://stackoverflow.com/questions/1064089/inserting-a-text-where-cursor-is-using-javascript-jquery (therefore not in Typescript format, fix this later)
function insertText(areaId, text) {
    var txtarea = document.getElementById(areaId);
    var scrollPos = txtarea.scrollTop;
    var strPos = 0;
    var br = ((txtarea.selectionStart || txtarea.selectionStart == '0') ?
        "ff" : (document.selection ? "ie" : false));
    if (br == "ie") {
        txtarea.focus();
        var range = document.selection.createRange();
        range.moveStart('character', -txtarea.value.length);
        strPos = range.text.length;
    }
    else if (br == "ff") strPos = txtarea.selectionStart;

    var front = (txtarea.value).substring(0, strPos);
    var back = (txtarea.value).substring(strPos, txtarea.value.length);
    txtarea.value = front + text + back;
    strPos = strPos + text.length;
    if (br == "ie") {
        txtarea.focus();
        var range = document.selection.createRange();
        range.moveStart('character', -txtarea.value.length);
        range.moveStart('character', strPos);
        range.moveEnd('character', 0);
        range.select();
    }
    else if (br == "ff") {
        txtarea.selectionStart = strPos;
        txtarea.selectionEnd = strPos;
        txtarea.focus();
    }
    txtarea.scrollTop = scrollPos;
}

// Inserting a bbcode
function insertBBcode(textarea: string, tag: string, arg: boolean = false): void {
    var element = document.getElementById(textarea);
    var before = "[" + tag + (arg ? "=" : "") + "]";
    var after = "[/" + tag + "]";

    if (document.selection) {
        element.focus();
        var sel = document.selection.createRange();
        sel.text = before + sel.text + after;
        element.focus();
    } else if (element.selectionStart || element.selectionStart === 0) {
        var startPos = element.selectionStart;
        var endPos = element.selectionEnd;
        var scrollTop = element.scrollTop;
        element.value = element.value.substring(0, startPos) + before + element.value.substring(startPos, endPos) + after + element.value.substring(endPos, element.value.length);
        element.focus();
        element.selectionStart = startPos + before.length;
        element.selectionEnd = endPos + before.length;
        element.scrollTop = scrollTop;
    } else {
        element.value += before + after;
        element.focus();
    }
}

// Formatting money
Number.prototype.formatMoney = function (u, c, k) {
    var f = this,
        u = isNaN(u = Math.abs(u)) ? 2 : u,
        c = c == undefined ? "." : c,
        k = k == undefined ? "," : k,
        i = f < 0 ? "-" : "",
        n = parseInt(f = Math.abs(+f || 0).toFixed(u)) + "",
        g = (g = n.length) > 3 ? g % 3 : 0;

    return i + (g ? n.substr(0, g) + k : "") + n.substr(g).replace(/(\c{3})(?=\c)/g, "$1" + k) + (u ? c + Math.abs(f - n).toFixed(u).slice(2) : "");
};