//TODO: Add delete buttons for messages
//TODO: Save button deactivation after swap, post or delete
//TODO: It sends request, gets responds but doesnt run a function!!
//TODO: Warning is displayed twice
var clientUUID = '';
var advancedDisplayed = false;
var json = {};
var jsonIndex = 0;
var lastId = 1;
var htable_row = 0;
var host = getDomain();
var dataModified = false;
// TODO: Remove discard changes
const addMessageName = 'addMessage';
const loadMessageName = 'changeMessage';
const removeMessageName = 'removeMessage';
// TODO: Add last given command

const C_UUID = 'mock-uuid';
const C_ID = 'last-displayed-id';
const C_ADV = 'advanced-mode';
const setModified = function(){
    setDataModified();
}
const setOrigin = function(){
    setDataOrigin();
}

const getUpdate = function(){
    updateData();
}
const dataRefresh = function(){
    getData();
}
$('#iconPlus').click(function(){callAddMessage()});
$('#btn-addRow').click(function(){addRow()});
//TODO remove later save onclick init
$('#btn-save').click(getUpdate);

function getData(){
    $.getJSON(host + '/api/mock/'+clientUUID, function(data) {
        json = data;
        checkUuid();
        console.log(JSON.stringify(json));
        console.log("Json received");
        refreshData();
    });
}

function checkUuid(){
    if(clientUUID == null || clientUUID == undefined || clientUUID == ''){
        clientUUID = json[0].clientUUID;
        setCookie();
    }
}

function getDomain(){
    var url = window.location.href;
    var arr = url.split("/");
    var result = arr[0] + "//" + arr[2];
    return result;
}

function setDataModified(){
    if(dataModified) return;
    dataModified = true;
    $('#btn-save').removeClass('btn-inactive');
    $('#btn-save').addClass('btn-action');
    $('#btn-save').click(getUpdate);
}

//Adding change listener to fields
$('.field').change(setModified);

function setDataOrigin(){
    dataModified = false;
    $('#btn-save').addClass('btn-inactive');
    $('#btn-save').removeClass('btn-action');
    $('#btn-save').off();
}

const idToDisplay = function(){
    let defaultId = json[0].mockedResponseId;
    if(lastId == undefined || lastId == null) return defaultId;
    for(let i=0; i<json.length; i++){
        if(json[i].mockedResponseId == lastId){
            return lastId;
        }
    }
    if(jsonIndex <= json.length && jsonIndex > 0){
        jsonIndex -= 1;
        return json[jsonIndex].mockedResponseId;
    } 
    return defaultId;
}

function refreshData(){
    fillMessageList();
    console.log("List initiated");
    let id = idToDisplay();
    console.log('Loading message of id: ' + id);
    loadMessage(id);
    console.log("Message loaded");
}

function setCookie(){
    document.cookie = C_UUID + '=' +clientUUID+';'
    document.cookie = C_ID + '=' + lastId;
    document.cookie = C_ADV + '=' + advancedVisibility;
}

function loadCookies(){
    clientUUID = getCookie(C_UUID);
    lastId = getCookie(C_ID);
    advancedDisplayed = getCookie(C_ADV) == 'true';
}

function getCookie(cname) {
    var name = cname + '=';
    var decodedCookie = decodeURIComponent(document.cookie);
    var ca = decodedCookie.split(';');
    for(var i = 0; i <ca.length; i++) {
        var c = ca[i];
        while (c.charAt(0) == ' ') {
            c = c.substring(1);
        }
        if (c.indexOf(name) == 0) {
            return c.substring(name.length, c.length);
        }
    }
    return '';
}

function callMethodByName(methodObject){
    let name = methodObject.name;
    let id = methodObject.id;
    switch(name){
        case addMessageName: 
            addMessage();
            break;
        case loadMessageName:
            loadMessage(id);
            break;
        case removeMessageName:
            removeMessage(id);
            break;
    }
}

function updateData(){
    var updatedJson = generateJson();
    const dataSaved = function () {
        setDataOrigin();
        refreshData();
        savedModalDisplay();
    }
    $.ajax({
        url: host + '/api/mock',
        type: 'PUT',
        data: JSON.stringify(updatedJson, null, 2),
        contentType: "application/json",
    }).done(dataSaved);
}

function callAddMessage(){
    if(dataModified){
        setMethodToCall(addMessageName, null);
        dataLossModalDisplay();
    }
    else {
        addMessage();
    }
}

function addMessage(){
    $.ajax({
        url: host + '/api/mock/'+clientUUID,
        type: 'POST',
    }).done(dataRefresh);
}

function callRemoveMessage(id){
    if(dataModified){
        setMethodToCall(removeMessageName, id);
        dataLossModalDisplay();
    }
    else {
        removeMessage(id);
    }
}

function removeMessage(id){
    var jsonObject = findJsonById(id);
    $.ajax({
        url: host + '/api/mock/'+clientUUID + '/' + id,
        type: 'DELETE',
    }).done(dataRefresh);
}


function clearMock(){
    fillStaticFields('','','','');
    htable_row = 0;
    $('#httpStatusValues').html('');
}

function initializeMock(index){
    clearMock();
    fillStaticFields(json[index].clientUUID
        , json[index].mockedResponseId
        , json[index].mediaType
        , json[index].messageBody
        , json[index].httpStatus);
    fillHeaderTable(json[index].httpHeaders);
}

function fillStaticFields(uuid, id, mediaType, body, httpStatus){
    let link = createLink(uuid,id);
    $('#messageLink').html('<a href="' + link + '" target="_blank">' + link + '</a>');
    $('#httpStatus').val(httpStatus);
    $('#typeSelector').val(mediaType);
    $('#bodyEditor').val(body);
    $('#mockedMessageId').html(id);

}

function createLink(uuid, id){
    var link =  host + '/api/mock/r/'+uuid+'/'+id;
    return link;
}

function fillHeaderTable(headers){
    var innerHTML = $('#httpStatusValues').html();
    innerHTML += generateHeaderTable(headers);
    $('#httpStatusValues').html(innerHTML);
    $('.tableField').change(function(){setDataModified()});
}
//TODO: Add addRow() to generate new rows and populate them with data
function generateHeaderTable(headers){
    let count = 0;
    let innerHTML = '';
    for(var item in headers){
        if( headers.hasOwnProperty(item) ) count++;
    }
    var keys = new Array(count);
    var values = new Array(count);
    let index = 0;
    for(var key in Object.keys(headers)){
        keys[index++]=Object.keys(headers)[key];
    }
    index = 0;
    for(var val in headers){
        values[index++]=headers[val];
    }

    for(let i=0; i<count; i++){
        innerHTML+=
            '<tr id="hrow' + htable_row + '" class="httpStatusValue">' +
                '<td>' +
                    '<input type="text" name="headerKey" placeholder="key" class="tableField textField-key" value="' + keys[i] + '"/></td>' +
                '<td>' +
                    '<input type="text" name="headerValue" placeholder="value" class="tableField" value="' + values[i] + '"/></td>' +
            '<td class="btn-function-table btn-table-remove" onclick="removeRow(' + htable_row + ')">&times;</td>' +
            '</tr>';
        htable_row++;
    }
    return innerHTML;
}

function removeRow(row){
    $('#hrow' + row).remove();
    setDataModified();
}

function addRow(){
    var table = $('#httpStatusValues');
    var hkey = $('#headerKeyInput');
    var hval = $('#headerValueInput');
    if(hkey.val() == 'key' || hkey.val() == '' || hval.val() == 'value' || hval.val() == '') return;
    var innerHtml =
        '<tr id="hrow' + htable_row + '" class="httpStatusValue">' +
        '<td>' +
        '<input " type="text" name="headerKey" placeholder="key" class="tableField textField-key" value="' + hkey.val() +
        '"/></td>' +
        '<td>' +
        '<input " type="text" name="headerKey" placeholder="key" class="tableField" value="' + hval.val() + '"/></td>' +
        '<td class="btn-function-table btn-table-remove" onclick="removeRow(' + htable_row + ')">X</td>' +
        '</tr>';
    htable_row++;
    table.append(innerHtml);
    hkey.val('');
    hval.val('');
    setDataModified();
}

function fillMessageList(){
    $("#listItems").html('');
    var innerHTML = '';
    for(let i=0; i<json.length; i++){
        innerHTML += generateMessageTileHtml(json[i].mockedResponseId, json[i].httpStatus, json[i].mediaType);
    }
    $("#listItems").append(innerHTML);
}


//TODO: Implement methods where its possible
function findJsonById(id){
    return json[findJsonIndexById(id)];
}

function findJsonIndexById(id){
    for(let i=0; i<json.length; i++)
        if(id == json[i].mockedResponseId) return i;
}

function callLoadMessage(id){
    if(dataModified) {
        setMethodToCall(loadMessageName, id);
        dataLossModalDisplay();
    }
    else {
        loadMessage(id);
    }
}

function loadMessage(id){
    lastId = id;
    setCookie();
    setDataOrigin();
    for(let i=0; i<json.length; i++){
        if(id == json[i].mockedResponseId){
            jsonIndex = i;
            console.log("Message found");
            initializeMock(jsonIndex);
            console.log("Fields initialized");
            selectMessage(id);
            console.log("Selection complete");
            return;
        }
    }
    console.log("Message not found");
}

function selectMessage(id){
    console.log("Selecting message...");
    $(".menuItemSelected").on("click");
    $(".menuItemSelected").addClass("menuItem");
    $(".menuItemSelected").removeClass("menuItemSelected");
    console.log("Selected message deselected");
    let itemId = '#item_'+id;
    $(itemId).off("click");
    $(itemId).addClass("menuItemSelected");
    $(itemId).removeClass("menuItem");
    console.log("Selected message selected");
}

function generateMessageTileHtml(id, httpStatus, mediaType){
    var innerHTML = '<div class="menuItem" id="item_' + id + '" onclick="callLoadMessage('+ id +')">' +
        '<table><tr><td>Id: '+ id +'</td></tr>' +
        '<tr><td>Http-status: '+ httpStatus +'</td></tr>' +
        '</table></div><div class="btn-del-MenuItem" onclick="callRemoveMessage(' + id + ')">&times;</div>' +
        '<div style="clear: both;"></div>';
    return innerHTML;
}



const onbuild = function(){
    loadCookies();
    getData();
    if(advancedDisplayed) {
        changeAdvancedVisibility();
    }
}

$(document).ready(onbuild);

function sleep(ms) {
    return new Promise(resolve => setTimeout(resolve, ms));
}



function generateJson(){
    var newJson =
        {
            clientUUID: json[jsonIndex].clientUUID,
            mockedResponseId: json[jsonIndex].mockedResponseId,
            mediaType: $('#typeSelector').val(),
            messageBody: $('#bodyEditor').val(),
            httpStatus: $('#httpStatus').val(),
            httpHeaders: {},
        };
    newJson['httpHeaders'] = convertTableToJson();
    console.log(JSON.stringify(newJson, null, 2));
    json[jsonIndex] = newJson;
    return newJson;
}


function convertTableToJson(){
    var rows = $('.httpStatusValue');
    console.log("Rows: "+rows.length);
    var obj = {};
    var key;
    for(let i=0; i<rows.length; i++){
        key = rows.eq(i).children().eq(0).children().eq(0).val();
        obj[key] = rows.eq(i).children().eq(1).children().eq(0).val();
    }
    return obj;
}