Improved www.ttss.krakow.pl
Jacek Kowalski
2016-12-03 8968793e1d2d28cfdc8592717ffe200bb4d712e6
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<!--
URLs:
 
MODE=arrival,departure
 
http://www.ttss.krakow.pl
 
/internetservice/services/passageInfo/stopPassages/stop?stop=84&mode=MODE
/internetservice/services/passageInfo/stopPassages/stopPoint?stopPoint=stopPoint&mode=MODE
 
/internetservice/services/routeInfo/routeStops?routeId=
 
/internetservice/services/lookup/autocomplete/nearStops/json?lat=&lon=
/internetservice/services/lookup/autocomplete/json?query=
-->
<!DOCTYPE html>
<html lang="en">
    <head>
        <title>TTSS Cracow</title>
        <meta charset="utf-8">
        <meta http-equiv="X-UA-Compatible" content="IE=edge">
        <meta name="viewport" content="width=device-width, initial-scale=1">
        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
        <style type="text/css">
            tr.active {
                color: gray;
            }
            .form-round-left {
                border-top-left-radius: 4px !important;
                border-bottom-left-radius: 4px !important;
                border-right: 0;
            }
            .navbar-text {
                margin-right: 15px;
                margin-left: 15px;
            }
            .input-group-btn:first-child {
                width: 50%;
            }
        </style>
    </head>
    <body>
        <nav class="navbar navbar-default">
            <div class="container-fluid">
                <div class="navbar-header">
                    <a class="navbar-brand" href="#">TTSS KRK</a>
                </div>
                <form class="navbar-form navbar-left">
                    <div class="input-group">
                        <span class="input-group-btn">
                            <input type="text" class="form-control form-round-left" id="stop-name" placeholder="Stop name" />
                        </span>
                        <select class="form-control" id="stop-name-autocomplete">
                        </select>
                        <span class="input-group-btn">
                            <button type="submit" class="btn btn-default">Go</button>
                        </span>
                    </div>
                </form>
                
                <button type="button" class="btn btn-default navbar-btn pull-right" id="refresh" disabled="disabled">
                    <span class="glyphicon glyphicon-refresh" aria-hidden="true"></span>
                    Refresh
                </button>
                
                <p class="navbar-text pull-right" id="refresh-text">Initializing...</p>
            </div>
        </nav>
        <div class="container-fluid">
            <div id="alert" class="alert alert-danger alert-dismissible" style="display:none">
                <a href="#" class="close" id="alert-close" aria-label="close">&times;</a>
                <strong>Error occured!</strong> <span id="alert-text"></span>
            </div>
            
            <div class="row">
                <div class="col-md-6">
                    <h2 id="times-stop-name"></h2>
                    
                    <div id="times-alerts"></div>
                    
                    <table class="table table-striped table-condensed">
                        <thead>
                            <tr>
                                <th>Line</th>
                                <th>Direction</th>
                                <th>Time</th>
                                <th>Delay</th>
                            </tr>
                        </thead>
                        <tbody id="times-table">
                        </tbody>
                    </table>
                </div>
                <div class="col-md-6">
                    <h3>Lines</h3>
                    
                    <table class="table table-condensed">
                        <thead>
                            <tr>
                                <th>Line</th>
                                <th>Route</th>
                                <th>Carrier</th>
                            </tr>
                        </thead>
                        <tbody id="times-lines">
                            
                        </tbody>
                    </table>
                    
                    <!--
                    <h3 id="route-line"></h3>
                    
                    <table class="table table-condensed">
                        <thead>
                            <tr>
                                <th>Stop</th>
                            </tr>
                        </thead>
                        <tbody id="route-table">
                            
                        </tbody>
                    </table>
                    -->
                </div>
            </div>
        </div>
        <script src="https://code.jquery.com/jquery-3.1.1.min.js" integrity="sha384-3ceskX3iaEnIogmQchP8opvBy3Mi7Ce34nWjpBIwVTHfGYWQS9jwHDVRnpKKHJg7"  crossorigin="anonymous"></script>
        <script type="text/javascript">
            //var ttss_base = 'http://www.ttss.krakow.pl/internetservice/services';
            var ttss_base = '/proxy.php';
            var ttss_refresh = 20000; // 20 seconds
            
            var stop_id;
            var stop_name = document.getElementById('stop-name');
            var stop_name_form = stop_name.form;
            var stop_name_autocomplete = document.getElementById('stop-name-autocomplete');
            var stop_name_autocomplete_xhr;
            
            var times_xhr;
            var times_timer;
            var times_stop_name = document.getElementById('times-stop-name');
            var times_alerts = document.getElementById('times-alerts');
            var times_table = document.getElementById('times-table');
            var times_lines = document.getElementById('times-lines');
            
            /*
            var route_xhr;
            var route_line = document.getElementById('route-line');
            var route_table = document.getElementById('route-table');
            */
            
            var refresh_button = document.getElementById('refresh');
            var refresh_text = document.getElementById('refresh-text');
            var refresh_time;
            var refresh_timer;
            
            var alert = document.getElementById('alert');
            var alert_text = document.getElementById('alert-text');
            var alert_close = document.getElementById('alert-close');
            
            function parseStatus(status) {
                switch(status.status) {
                    case 'STOPPING':
                        return '<<<';
                    case 'PREDICTED':
                        if(status.actualRelativeTime <= 0)
                            return '<<<';
                        if(status.actualRelativeTime >= 60)
                            return Math.floor(status.actualRelativeTime / 60) + ' min';
                        return status.actualRelativeTime + ' s';
                    case 'DEPARTED':
                        return Math.floor(-status.actualRelativeTime / 60) + ' min ago';
                    default:
                        return status.mixedTime;
                }
            }
            
            function parseTime(date, time) {
                var result = new Date(date.getFullYear(), date.getMonth(), date.getDay());
                var time_split = time.split(':');
                result.setHours(time_split[0]);
                result.setMinutes(time_split[1]);
                
                if(result.getTime() - date.getTime() > 72000000) {
                    result.setTime(result.getTime() - 86400000);
                }
                
                if(date.getTime() - result.getTime() > 72000000) {
                    result.setTime(result.getTime() + 86400000);
                }
                
                return result;
            }
            
            function parseDelay(status) {
                if(!status.actualTime) return '?';
                if(!status.plannedTime) return '?';
                
                var now = new Date();
                var actual = parseTime(now, status.actualTime);
                var planned = parseTime(now, status.plannedTime);
                
                return ((actual.getTime() - planned.getTime()) / 1000 / 60) + ' min';
            }
            
            function deleteChildren(element) {
                while(element.lastChild) element.removeChild(element.lastChild);
            }
            
            function addElementWithText(parent, element, text) {
                var elem = document.createElement(element);
                elem.appendChild(document.createTextNode(text));
                parent.appendChild(elem);
                return elem;
            }
            
            function addCellWithText(parent, text) {
                addElementWithText(parent, 'td', text);
            }
            
            function addParaWithText(parent, text) {
                addElementWithText(parent, 'p', text);
            }
            
            function setText(element, text) {
                deleteChildren(element);
                element.appendChild(document.createTextNode(text));
            }
            
            function fail(message, more) {
                if(refresh_timer) clearInterval(refresh_timer);
                if(times_timer) clearTimeout(times_timer);
                
                setText(alert_text, message);
                alert.style.display = 'block';
                
                console.log(message + ' More details follow.');
                if(more) console.log(more);
            }
            
            function fail_ajax(data) {
                // abort() is not a failure
                if(data.readyState == 0 && data.statusText == 'abort') return;
                
                if(data.status == 0) {
                    fail('Request failed - please check your network connectivity.', data);
                } else if (data.statusText) {
                    fail('Internet request failed with error: ' + data.statusText + '.', data);
                } else {
                    fail('Internet request failed.', data);
                }
            }
            
            function loadTimes(stopId = null, clearRoute = false) {
                if(!stopId) stopId = stop_id;
                if(!stopId) return;
                
                if(times_timer) clearTimeout(times_timer);
                if(times_xhr) times_xhr.abort();
                
                refresh_button.removeAttribute('disabled');
                
                times_xhr = $.get(
                    ttss_base + '/passageInfo/stopPassages/stop' 
                        + '?stop=' + encodeURIComponent(stopId)
                        + '&mode=departure'
                ).done(function(data) {
                    setText(times_stop_name, data.stopName);
                    deleteChildren(times_alerts);
                    deleteChildren(times_table);
                    deleteChildren(times_lines);
                    /*
                    if(clearRoute) {
                        deleteChildren(route_line);
                        deleteChildren(route_table);
                    }
                    */
                    
                    for(var i = 0, il = data.generalAlerts.length; i < il; i++) {
                        addParaWithText(times_alerts, data.generalAlerts[i]);
                    }
                    
                    for(var i = 0, il = data.old.length; i < il; i++) {
                        var tr = document.createElement('tr');
                        addCellWithText(tr, data.old[i].patternText);
                        addCellWithText(tr, data.old[i].direction);
                        var status = parseStatus(data.old[i]);
                        addCellWithText(tr, status);
                        addCellWithText(tr, '');
                        
                        tr.className = 'active';
                        times_table.appendChild(tr);
                    }
                    
                    for(var i = 0, il = data.actual.length; i < il; i++) {
                        var tr = document.createElement('tr');
                        addCellWithText(tr, data.actual[i].patternText);
                        addCellWithText(tr, data.actual[i].direction);
                        var status = parseStatus(data.actual[i]);
                        addCellWithText(tr, status);
                        var delay = parseDelay(data.actual[i]);
                        addCellWithText(tr, delay);
                        
                        if(status == '<<<') tr.className = 'success';
                        else if(parseInt(delay) > 9) tr.className = 'danger';
                        else if(parseInt(delay) > 3) tr.className = 'warning';
                        times_table.appendChild(tr);
                    }
                    
                    for(var i = 0, il = data.routes.length; i < il; i++) {
                        var tr = document.createElement('tr');
                        addCellWithText(tr, data.routes[i].name);
                        addCellWithText(tr, data.routes[i].directions.join(' - '));
                        addCellWithText(tr, data.routes[i].authority);
                        
                        /*
                        tr.addEventListener('click', function(routeId, routeTr){ return function(e) {
                            var trs = tr.parentNode;
                            for(var i = 0; i < trs.childNodes.length; i++) {
                                trs.childNodes[i].removeAttribute('class');
                            }
                            routeTr.className = 'warning';
                            
                            if(route_xhr) route_xhr.abort();
                            route_xhr = $.get(
                                ttss_base + '/routeInfo/routeStops'
                                    + '?routeId=' + encodeURIComponent(routeId)
                            ).done(function(data) {
                                setText(route_line, data.route.name + ': '
                                    + data.route.directions.join(' - '));
                                deleteChildren(route_table);
                                
                                routeTr.className = 'success';
                                
                                for(var i = 0, il = data.stops.length; i < il; i++) {
                                    var tr = document.createElement('tr');
                                    addCellWithText(tr, data.stops[i].name);
                                    route_table.appendChild(tr);
                                }
                            }).fail(fail_ajax);
                        }}(data.routes[i].id, tr));
                        */
                        
                        times_lines.appendChild(tr);
                        
                        for(var j = 0, jl = data.routes[i].alerts.length; j < jl; j++) {
                            addParaWithText(
                                times_alerts,
                                'Line ' +  data.routes[i].name + ': '
                                    + data.routes[i].alerts[j]
                            );
                        }
                    }
                    
                    startTimer(new Date());
                    
                    times_timer = setTimeout(function(){ loadTimes(); }, ttss_refresh);
                }).fail(fail_ajax);
            }
            
            function declinate(num, singular, plural) {
                if(num == 1) return num + ' ' + singular;
                return num + ' ' + plural;
            }
            
            function startTimer(date) {
                if(date) {
                    setText(refresh_text, 'Last refreshed: just now')
                    refresh_time = date;
                }
                if(!refresh_time) return;
                if(refresh_timer) clearInterval(refresh_timer);
                
                var now = new Date();
                var ms = now.getTime() - refresh_time.getTime();
                
                var interval = 1000;
                if(ms >= 120000) interval = 60000;
                
                refresh_timer = setInterval(function() {
                    var now = new Date();
                    var ms = now.getTime() - refresh_time.getTime();
                    
                    if(ms >= 120000) {
                        setText(refresh_text, 'Last refreshed: '
                            + declinate(Math.floor(ms / 60000), 'minute ago', 'minutes ago'));
                        startTimer();
                    } else {
                        setText(refresh_text, 'Last refreshed: '
                            + declinate(Math.floor(ms / 1000), 'second ago', 'seconds ago'));
                    }
                }, interval);
            }
            
            function init() {
                if(!window.jQuery) {
                    fail('Required JavaScript jQuery library failed to load. You may try refreshing the page.');
                    return;
                }
                
                $.ajaxSetup({
                    dataType: 'json',
                    timeout: 3000,
                });
                
                stop_name.addEventListener('input', function(e) {
                    if(!stop_name.value) return;
                    if(stop_name_autocomplete_xhr) stop_name_autocomplete_xhr.abort();
                    
                    stop_name_autocomplete_xhr = $.get(
                        ttss_base + '/lookup/autocomplete/json'
                            + '?query=' + encodeURIComponent(stop_name.value)
                    ).done(function(data) {
                        deleteChildren(stop_name_autocomplete);
                        for(var i = 1, il = data.length; i < il; i++) {
                            var opt = document.createElement('option');
                            opt.value = data[i].id;
                            opt.appendChild(document.createTextNode(data[i].name));
                            stop_name_autocomplete.appendChild(opt);
                        }
                        
                        if(!stop_id) setText(refresh_text, 'Select the stop and click "Go"');
                    }).fail(fail_ajax);
                });
                
                setText(refresh_text, 'Enter the stop name to begin');
                
                stop_name_form.addEventListener('submit', function(e) {
                    e.preventDefault();
                    if(!stop_name_autocomplete.value) return;
                    stop_id = stop_name_autocomplete.value;
                    loadTimes(stop_id, true);
                });
                
                refresh_button.addEventListener('click', function(e) {
                    loadTimes(stop_id);
                });
                
                alert_close.addEventListener('click', function(e) {
                    alert.style.display = 'none';
                });
            }
            
            init();
        </script>
    </body>
</html>