rpc api for potential iitc plugin to show London (UK) bus routes...

website/plugin-rpc/tfl/bus-sequences.csv

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+/home/jon/tfl/bus-sequences.csv

website/plugin-rpc/tfl/bus-stops.csv

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+/home/jon/tfl/bus-stops.csv

website/plugin-rpc/tfl/index.php

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