132 lines
2.6 KiB
PHP
132 lines
2.6 KiB
PHP
<?php
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include "phpcoord/phpcoord-2.3.php";
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header("Content-Type: text/plain");
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function load_csv_callback($filename,$callback) {
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$f = fopen($filename,"rt");
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// the files start with a UTF-8 "byte order mark" - skip it
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fread($f, 3);
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$data = Array();
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$header = NULL;
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while (($row = fgetcsv($f,1000,",", '"', '\\')) !== FALSE) {
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// the file ends with a DOS-style EOF marker (Ctrl-Z)
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if ($row[0] == "\x1A")
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break;
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if (!$header) {
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$header = $row;
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} else {
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$row = array_combine($header, $row);
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$result = call_user_func($callback, $row);
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}
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}
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}
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class Routes {
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var $routes = Array();
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function add_route($row) {
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$rt = $row['Route'];
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$run = (int)$row['Run'];
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if (!isset($this->routes[$rt]))
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$this->routes[$rt] = Array();
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if (!in_array($run,$this->routes[$rt],TRUE))
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array_push($this->routes[$rt], $run);
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}
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}
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class Stops {
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var $route;
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var $run;
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var $stops = Array();
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function route_run($route,$run) {
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$this->route = $route;
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$this->run = $run;
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}
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function add_stop($row) {
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if ($row['Route'] == $this->route && $row['Run'] == $this->run) {
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$easting = (int)$row['Location_Easting'];
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$northing = (int)$row['Location_Northing'];
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$os = new OSRef($easting, $northing);
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$latlng = $os->toLatLng();
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$stop = Array (
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'bus_stop_code' => $row['Bus_Stop_Code'],
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'stop_name' => $row['Stop_Name'],
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'location_os' => Array('easting'=>$easting,'northing'=>$northing),
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'location' => Array('lat' => $latlng->lat, 'lng' => $latlng->lng),
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'heading' => (int)$row['Heading'],
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'virtual_bus_stop' => (int)$row['Virtual_Bus_Stop']
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);
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array_push($this->stops, $stop);
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}
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}
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};
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$result = Array();
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switch ($_REQUEST['method']) {
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case 'bus-routes':
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$routes = new Routes();
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load_csv_callback("bus-sequences.csv", Array($routes,'add_route'));
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$result = Array('bus-routes'=>$routes->routes);
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break;
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case 'bus-stops':
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$route = $_REQUEST['route'];
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$run = (int)$_REQUEST['run'];
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$stops = new Stops();
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$stops->route_run($route, $run);
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load_csv_callback("bus-sequences.csv", Array($stops,'add_stop'));
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$result = Array('route' => $route, 'run' => $run, 'stops' => $stops->stops);
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break;
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default:
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$result = Array('error'=>'Method not found');
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break;
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}
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if (isset($_REQUEST['jsonp']))
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header("Content-Type: application/javascript");
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else
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header("Content-Type: application/json");
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if (isset($_REQUEST['jsonp']))
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print($_REQUEST['jsonp']."(");
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print json_encode($result);
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if (isset($_REQUEST['jsonp']))
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print(");");
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?>
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