function startNewPost(){
    var el = document.getElementById("newpostbtn");
    el.style="display:none;";
    el.setAttribute("state", "1");
    document.getElementById("newpost").style = "display: block;";
}

function stopNewPost(){
    var el = document.getElementById("newpostbtn");
    el.style="display:block;";
    el.setAttribute("state", "0");
    document.getElementById("newpost").style = "display: hidden;";
}

function newpost()
{
    var state = document.getElementById("newpostbtn").getAttribute("state");
    if(state === "0")
    {
        startNewPost();
        sessionStorage.setItem("newpostState", true);
    }
    else
    {
        stopNewPost();
        sessionStorage.setItem("newpostState", false);
    }
}

function shortURL(actorName, url)
{
    re = /.+\//g;
    temp = re.exec(url);

    var output;

    if(stripTransferProtocol(temp[0]) == stripTransferProtocol(actorName) + "/")
    {
        var short = url.replace("https://", "");
        short = short.replace("http://", "");
        short = short.replace("www.", "");

        var re = /^.{3}/g;

        var u = re.exec(short);

        re = /\w+$/g;

        output =  re.exec(short);
    }else{
        var short = url.replace("https://", "");
        short = short.replace("http://", "");
        short = short.replace("www.", "");

        var re = /^.{3}/g;

        var u = re.exec(short);

        re = /\w+$/g;

        u =  re.exec(short);

        str = short.replace(/\/+/g, " ");

        str = str.replace(u, " ").trim();

        re = /(\w|[!@#$%^&*<>])+$/;

        v = re.exec(str);

        output = "f" + v[0] + "-" + u
    }

    return output;
}

function getBoardId(url)
{
    var re = /\/([^/\n]+)(.+)?/gm;
    var matches = re.exec(url);
    return matches[1];
}

function convertContent(actorName, content, opid)
{
    var re = /(>>)(https?:\/\/)?(www\.)?.+\/\w+/gm;
    var match = content.match(re);
    var newContent = content;
    if(match)
    {
        match.forEach(function(quote, i){
            var link = quote.replace('>>', '');
            var isOP = "";
            if(link == opid)
            {
                isOP = " (OP)";
            }

            var q = link;

            if(document.getElementById(link + "-content") != null) {
                q = document.getElementById(link + "-content").innerText;
                q = q.replaceAll('>', '/\>');
                q = q.replaceAll('"', '');
                q = q.replaceAll("'", "");
            }
            newContent = newContent.replace(quote, '<a class="reply" title="' + q +  '" href="'+ (actorName) + "/" + shortURL(actorName, opid)  +  '#' + shortURL(actorName, link) + '";">>>' + shortURL(actorName, link)  + isOP + '</a>');

        });
    }

    re =  /^(\s+)?>.+/gm;

    match = newContent.match(re);
    if(match)
    {
        match.forEach(function(quote, i) {

            newContent = newContent.replace(quote, '<span class="quote">' + quote + '</span>');
        });
    }

    return newContent.replaceAll('/\>', '>');
}

function convertContentNoLink(actorName, content, opid)
{
    var re = /(>>)(https?:\/\/)?(www\.)?.+\/\w+/gm;
    var match = content.match(re);
    var newContent = content;
    if(match)
    {
        match.forEach(function(quote, i){
            var link = quote.replace('>>', '');
            var isOP = "";
            if(link == opid)
            {
                isOP = " (OP)";
            }

            var q = link;

            if(document.getElementById(link + "-content") != null) {
                q = document.getElementById(link + "-content").innerText;
            }

            newContent = newContent.replace(quote, '>>' + shortURL(actorName, link)  + isOP);
        });
    }
    newContent = newContent.replaceAll("'", "");
    return newContent.replaceAll('"', '');
}

function closeReply()
{
    document.getElementById("reply-box").style.display = "none";
    document.getElementById("reply-comment").value = "";

    sessionStorage.setItem("element-closed-reply", true);
}

function closeReport()
{
    document.getElementById("report-box").style.display = "none";
    document.getElementById("report-comment").value = "";

    sessionStorage.setItem("element-closed-report", true);
}

function quote(actorName, opid, id)
{
    sessionStorage.setItem("element-closed-reply", false);
    var box = document.getElementById("reply-box");
    var header = document.getElementById("reply-header");
    var comment = document.getElementById("reply-comment");
    var inReplyTo = document.getElementById("inReplyTo-box");

    var w = window.innerWidth / 2 - 200;
    if(id == "reply") {
        var h = document.getElementById(id + "-content").offsetTop - 548;
    } else {
        var h = document.getElementById(id + "-content").offsetTop - 348;
    }

    const boxStyle = "display: block; position: absolute; width: 400px; height: 600px; z-index: 9; top: " + h + "px; left: " + w + "px; padding: 5px;";
    box.setAttribute("style", boxStyle);
    sessionStorage.setItem("element-reply-style", boxStyle);
    sessionStorage.setItem("reply-top", h);
    sessionStorage.setItem("reply-left", w);


    if (inReplyTo.value != opid)
        comment.value = "";

    header.innerText = "Replying to Thread No. " + shortURL(actorName, opid);
    inReplyTo.value = opid;
    sessionStorage.setItem("element-reply-actor", actorName);
    sessionStorage.setItem("element-reply-id", inReplyTo.value);

    if(id != "reply")
        comment.value += ">>" + id + "\n";
    sessionStorage.setItem("element-reply-comment", comment.value);

    dragElement(header);

}

function report(actorName, id)
{
    sessionStorage.setItem("element-closed-report", false);
    var box = document.getElementById("report-box");
    var header = document.getElementById("report-header");
    var comment = document.getElementById("report-comment");
    var inReplyTo = document.getElementById("report-inReplyTo-box");

    var w = window.innerWidth / 2 - 200;
    var h = document.getElementById(id + "-content").offsetTop - 348;

    const boxStyle = "display: block; position: absolute; width: 400px; height: 480px; z-index: 9; top: " + h + "px; left: " + w + "px; padding: 5px;";
    box.setAttribute("style", boxStyle);
    sessionStorage.setItem("element-report-style", boxStyle);
    sessionStorage.setItem("report-top", h);
    sessionStorage.setItem("report-left", w);

    header.innerText = "Report Post No. " + shortURL(actorName, id);
    inReplyTo.value = id;
    sessionStorage.setItem("element-report-actor", actorName);
    sessionStorage.setItem("element-report-id", id);

    dragElement(header);
}

var pos1, pos2, pos3, pos4;
var elmnt;

function closeDragElement(e) {
    // stop moving when mouse button is released:
    document.onmouseup = null;
    document.onmousemove = null;
    sessionStorage.setItem("eventhandler", false);
}

function elementDrag(e) {
    e = e || window.event;
    e.preventDefault();
    // calculate the new cursor position:
    pos1 = pos3 - e.clientX;
    pos2 = pos4 - e.clientY;
    pos3 = e.clientX;
    pos4 = e.clientY;
    sessionStorage.setItem("pos1", pos1);
    sessionStorage.setItem("pos2", pos2);
    sessionStorage.setItem("pos3", pos3);
    sessionStorage.setItem("pos4", pos4);

    // set the element's new position:
    elmnt.parentElement.style.top = (elmnt.parentElement.offsetTop - pos2) + "px";
    elmnt.parentElement.style.left = (elmnt.parentElement.offsetLeft - pos1) + "px";
    if(elmnt.id.startsWith("report")){
        sessionStorage.setItem("report-top", elmnt.parentElement.style.top);
        sessionStorage.setItem("report-left", elmnt.parentElement.style.left);
    }else if(elmnt.id.startsWith("reply")){
        sessionStorage.setItem("reply-top", elmnt.parentElement.style.top);
        sessionStorage.setItem("reply-left", elmnt.parentElement.style.left);
    }
}

function dragMouseDown(e) {
    e = e || window.event;
    e.preventDefault();

    // get the mouse cursor position at startup:
    pos3 = e.clientX;
    pos4 = e.clientY;
    sessionStorage.setItem("pos3", pos3);
    sessionStorage.setItem("pos4", pos4);

    elmnt = e.currentTarget;

    // call a function whenever the cursor moves:
    document.onmouseup = closeDragElement;
    document.onmousemove = elementDrag;
    sessionStorage.setItem("eventhandler", true);

}

function dragElement(elmnt) {
    elmnt.onmousedown = dragMouseDown;
}

const stateLoadHandler = function(event){
    pos1 = parseInt(sessionStorage.getItem("pos1"));
    pos2 = parseInt(sessionStorage.getItem("pos2"));
    pos3 = parseInt(sessionStorage.getItem("pos3"));
    pos4 = parseInt(sessionStorage.getItem("pos4"));

    if(sessionStorage.getItem("element-closed-report") === "false"){
        var box = document.getElementById("report-box");
        var header = document.getElementById("report-header");
        var comment = document.getElementById("report-comment");
        var inReplyTo = document.getElementById("report-inReplyTo-box");

        header.onmousedown = dragMouseDown;
        inReplyTo.value = parseInt(sessionStorage.getItem("element-report-id"));
        header.innerText = "Report Post No. " + shortURL(sessionStorage.getItem("element-report-actor"), sessionStorage.getItem("element-report-id"));
        comment.value = sessionStorage.getItem("element-report-comment");

        box.setAttribute("style", sessionStorage.getItem("element-report-style"));

        box.style.top = sessionStorage.getItem("report-top");
        box.style.left = sessionStorage.getItem("report-left");

        if(sessionStorage.getItem("eventhandler") === "true"){
            elmnt = header;
            document.onmouseup = closeDragElement;
            document.onmousemove = elementDrag;
        }else{
            document.onmouseup = null;
            document.onmousemove = null;
        }
    }
    if(sessionStorage.getItem("element-closed-reply") === "false"){
        var box = document.getElementById("reply-box");
        var header = document.getElementById("reply-header");
        var comment = document.getElementById("reply-comment");
        var inReplyTo = document.getElementById("inReplyTo-box");

        header.onmousedown = dragMouseDown;
        inReplyTo.value = parseInt(sessionStorage.getItem("element-reply-id"));
        header.innerText = "Replying to Thread No. " + shortURL(sessionStorage.getItem("element-reply-actor"), sessionStorage.getItem("element-reply-id"));
        comment.value = sessionStorage.getItem("element-reply-comment");

        pos1 = parseInt(sessionStorage.getItem("pos1"));
        pos2 = parseInt(sessionStorage.getItem("pos2"));
        pos3 = parseInt(sessionStorage.getItem("pos3"));
        pos4 = parseInt(sessionStorage.getItem("pos4"));

        box.setAttribute("style", sessionStorage.getItem("element-reply-style"));

        box.style.top = sessionStorage.getItem("reply-top");
        box.style.left = sessionStorage.getItem("reply-left");

        if(sessionStorage.getItem("eventhandler") === "true"){
            elmnt = header;
            document.onmouseup = closeDragElement;
            document.onmousemove = elementDrag;
        }else{
            document.onmouseup = null;
            document.onmousemove = null;
        }
    }
};

document.addEventListener("DOMContentLoaded", stateLoadHandler, false);

function stripTransferProtocol(value){
    var re = /(https:\/\/|http:\/\/)?(www.)?/;
    return value.replace(re, "");
}