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victorrar / KyivPasTrans_highlight

// ==UserScript==
// @name         KyivPasTrans_highlight
// @description  Shows transport wait time
// @version      0.1
// @author       victorrar
// @license      MIT
// @include      http://kpt.kiev.ua/information/passengers/timetable/*
// @exclude      http://kpt.kiev.ua/information/passengers/timetable/
// @updateURL    https://openuserjs.org/meta/victorrar/KyivPasTrans_highlight.meta.js
// @copyright    2017, victorrar
// ==/UserScript==

(function() {
    'use strict';

    var now = new Date();
    function toDate(elem){
        var temp = new Date(now);
        temp.setHours(elem.innerText.split(":")[0], elem.innerText.split(":")[1], 0);
        return temp;
    }
    function compareTime(tBase, tComp){
        if(tComp == "Invalid Date"){
            return true;
        }
        return tBase.getTime() > tComp.getTime();
    }
    // Your code here...
    var tables = document.querySelectorAll(".transportTimetable");
    var tablesLength = tables.length;
    for(var m = 0; m < tablesLength; m++){
        var rows = tables[m].querySelectorAll(".t-row:not(.timetableHeader)");
        var rowsLength = rows.length;
        var cellsLength = rows[0].querySelectorAll(".tt-e, .tt-f:not(.shift)").length;    //num of columns
        var arr =[];
        for(var i=0; i<rowsLength; i++){
            var cells = rows[i].querySelectorAll(".tt-e, .tt-f:not(.shift)");
            arr[i] = Array.prototype.slice.call( cells, 0 );
        }
        //console.log(arr);
        var row = document.createElement("div");
        row.classList.add("t-row");
        var spacer = document.createElement("span");
        spacer.classList.add("tt-e");
        spacer.innerHTML = "&nbsp;";
        row.appendChild(spacer);
        for(i = 0; i < cellsLength; i++){
            var k = 0;
            while(k < rowsLength ? compareTime(now, toDate(arr[k][i])) : false){
                k++;
            }
            var cell = document.createElement("span");
            var text;
            cell.classList.add("tt-f");
            if(k < rowsLength){
                arr[k][i].style.color = "#5fa021";
                var dateLeft = Math.ceil((toDate(arr[k][i]) - now) / 60000);
                text = document.createTextNode(dateLeft + " m");
            } else {
                text = document.createTextNode("-");
            }
            cell.appendChild(text);
            row.appendChild(cell);
        }
        tables[m].insertBefore(row, tables[m].children[1]);

    }
})();