<?php
include ('include/common.inc.php');
include_header("Trip Planner", "tripPlanner", true, true, true);
$from = (isset($_REQUEST['from']) ? filter_var($_REQUEST['from'], FILTER_SANITIZE_STRING) : "");
$to = (isset($_REQUEST['to']) ? filter_var($_REQUEST['to'], FILTER_SANITIZE_STRING) : "");
$date = (isset($_REQUEST['date']) ? filter_var($_REQUEST['date'], FILTER_SANITIZE_STRING) : date("m/d/Y"));
$time = (isset($_REQUEST['time']) ? filter_var($_REQUEST['time'], FILTER_SANITIZE_STRING) : date("H:i"));
function formatTime($timeString) {
  $timeParts = explode("T",$timeString);
  return str_replace("Z","",$timeParts[1]);
}
function tripPlanForm($errorMessage = "")
{
 
        global $date, $time, $from, $to;
        echo "<font color=red>$errorMessage</font>";
        echo '<form action="tripPlanner.php" method="post">
    <div data-role="fieldcontain">
        <label for="from">I would like to go from</label>
        <input type="text" name="from" id="from" value="' . $from . '"  />
        <a href="#" style="display:none" name="fromHere" id="fromHere"/>Here?</a>
    </div>
        <div data-role="fieldcontain">
        <label for="to"> to </label>
        <input type="text" name="to" id="to" value="' . $to . '"  />
        <a href="#" style="display:none" name="toHere" id="toHere"/>Here?</a>
    </div>
    <div data-role="fieldcontain">
        <label for="date"> on </label>
        <input type="text" name="date" id="date" value="' . $date . '"  />
    </div>
        <div data-role="fieldcontain">
        <label for="time"> at </label>
        <input type="time" name="time" id="time" value="' . $time . '"  />
    </div>
        <input type="submit" value="Go!"></form>';
        echo "<script>
$('#toHere').click(function(event) { $('#to').val(getCookie('geolocate')); return false;});
$('#toHere').show();
$('#fromHere').click(function(event) { $('#from').val(getCookie('geolocate')); return false;});
$('#fromHere').show();
 
        </script>";
}
function processItinerary($itineraryNumber, $itinerary)
{
        echo '<div data-role="collapsible" ' . ($itineraryNumber > 0 ? 'data-collapsed="true"' : "") . '> <h3> Option #' . ($itineraryNumber + 1) . ": " . floor($itinerary->duration / 60000) . " minutes (".formatTime($itinerary->startTime)." to ".formatTime($itinerary->endTime).")</h3><p>";
        echo "Walking time: " . floor($itinerary->walkTime / 60000) . " minutes (" . floor($itinerary->walkDistance) . " meters)<br>\n";
        echo "Transit time: " . floor($itinerary->transitTime / 60000) . " minutes<br>\n";
        echo "Waiting time: " . floor($itinerary->waitingTime / 60000) . " minutes<br>\n";
        if (is_array($itinerary->legs->leg)) {
                $legMarkers = array();
                foreach ($itinerary->legs->leg as $legNumber => $leg) {
                        $legMarkers[] = array(
                                $leg->from->lat,
                                $leg->from->lon
                        );
                }
                echo '' . staticmap($legMarkers, 0, "iconb", false) . "<br>\n";
                echo '<ul>';
                foreach ($itinerary->legs->leg as $legNumber => $leg) {
                        echo '<li>';
                        processLeg($legNumber, $leg);
                        echo "</li>";
                        flush(); @ob_flush();
                }
                echo "</ul>";
        }
        else {
                echo '' . staticmap(array(
                        array(
                                $itinerary->legs->leg->from->lat,
                                $itinerary->legs->leg->from->lon
                        )
                ) , 0, "iconb", false) . "<br>\n";
                processLeg(0, $itinerary->legs->leg);
        }
        echo "</p></div>";
}
function processLeg($legNumber, $leg)
{
        $legArray = object2array($leg);
        echo '<h3>Leg #' . ($legNumber + 1) . " ( {$legArray['@mode']} from: {$leg->from->name} to {$leg->to->name}, " . floor($leg->duration / 60000) . " minutes) </h3>\n";
        if ($legArray["@mode"] === "BUS") {
                echo "Take bus {$legArray['@route']} " . str_replace("To", "towards", $legArray['@headsign']) . "<br>";
        }
        else {
                $walkStepMarkers = array();
                foreach ($leg->steps->walkSteps as $stepNumber => $step) {
                        $walkStepMarkers[] = array(
                                $step->lat,
                                $step->lon
                        );
                }
                echo "" . staticmap($walkStepMarkers, 0, "icong", false) . "<br>\n";
                foreach ($leg->steps->walkSteps as $stepNumber => $step) {
                        echo "Walking step " . ($stepNumber + 1) . ": ";
                        if ($step->relativeDirection == "CONTINUE") {
                          echo "Continue, ";
                        } else if ($step->relativeDirection) echo "Turn ".ucwords(strtolower(str_replace("_"," ",$step->relativeDirection))).", ";
                        echo "Go ".ucwords(strtolower($step->absoluteDirection))." on ";
                        if (strpos($step->streetName,"from") !== false && strpos($step->streetName,"way") !== false) {
                          echo "footpath";
                        } else {
                          echo $step->streetName;
                        }
                        echo " for " . floor($step->distance) . " meters<br>\n";
                }
        }
}
if ($_REQUEST['time']) {
        $toPlace = (startsWith($to, "-") ? $to : geocode($to, false));
        $fromPlace = (startsWith($from, "-") ? $from : geocode($from, false));
        if ($toPlace == "" || $fromPlace == "") {
                $errorMessage = "";
                if ($toPlace === "") {
                  $errorMessage.= urlencode($to) . " not found.<br>\n";
                  trackEvent("Trip Planner","Geocoder Failed", $to);
                }
                if ($fromPlace === "") {
                  $errorMessage.= urlencode($from) . " not found.<br>\n";
                  trackEvent("Trip Planner","Geocoder Failed", $from);
                }
                tripPlanForm($errorMessage);
        }
        else {
                $url = $otpAPIurl . "ws/plan?date=" . urlencode($_REQUEST['date']) . "&time=" . urlencode($_REQUEST['time']) . "&mode=TRANSIT%2CWALK&optimize=QUICK&maxWalkDistance=840&wheelchair=false&toPlace=$toPlace&fromPlace=$fromPlace&intermediatePlaces=";
                debug($url);
                $ch = curl_init($url);
                curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
                curl_setopt($ch, CURLOPT_HEADER, 0);
                curl_setopt($ch, CURLOPT_HTTPHEADER, array(
                        "Accept: application/json"
                ));
                curl_setopt($ch, CURLOPT_TIMEOUT, 10);
                $page = curl_exec($ch);
                if (curl_errno($ch) || curl_getinfo($ch, CURLINFO_HTTP_CODE) != 200) {
                        tripPlanForm("Trip planner temporarily unavailable: " . curl_errno($ch) . " " . curl_error($ch) . " ". curl_getinfo($ch, CURLINFO_HTTP_CODE) .(isDebug() ? "<br>".$url : ""));
                        trackEvent("Trip Planner","Trip Planner Failed", $url);
                }
                else {
                        trackEvent("Trip Planner","Plan Trip From", $from);
                        trackEvent("Trip Planner","Plan Trip To", $to);
                        $tripplan = json_decode($page);
                        debug(print_r($tripplan, true));
                        echo "<h1> From: {$tripplan->plan->from->name} To: {$tripplan->plan->to->name} </h1>";
                        echo "<h1> At: ".formatTime($tripplan->plan->date)." </h1>";
                        if (is_array($tripplan->plan->itineraries->itinerary)) {
                                echo '<div data-role="collapsible-set">';
                                foreach ($tripplan->plan->itineraries->itinerary as $itineraryNumber => $itinerary) {
                                        processItinerary($itineraryNumber, $itinerary);
                                }
                                echo "</div>";
                        }
                        else {
                                processItinerary(0, $tripplan->plan->itineraries->itinerary);
                        }
                }
                curl_close($ch);
        }
}
else {
        tripPlanForm();
}
include_footer();
?>