Add support for geopo based nearest stop lookup
Add support for geopo based nearest stop lookup

--- a/common.inc.php
+++ b/common.inc.php
@@ -9,7 +9,8 @@
 $debugOkay = Array(
 	"session",
 	"json",
-	"phperror"
+	"phperror",
+	"other"
 );
 if (isDebug("phperror")) error_reporting(E_ALL ^ E_NOTICE);
 include_once ("common-geo.inc.php");
@@ -25,13 +26,22 @@
 	$_SESSION['time'] = filter_var($_REQUEST['time'], FILTER_SANITIZE_STRING);
 }
 if (isset($_REQUEST['geolocate'])) {
+   
 	$geocoded = false;
 	if (isset($_REQUEST['lat']) && isset($_REQUEST['lon'])) {
-		$_SESSION['lat'] = filter_var($_REQUEST['lat'], FILTER_SANITIZE_NUMBER_FLOAT, FILTER_FLAG_ALLOW_FRACTION);
-		$_SESSION['lon'] = filter_var($_REQUEST['lon'], FILTER_SANITIZE_NUMBER_FLOAT, FILTER_FLAG_ALLOW_FRACTION);
+		$_SESSION['lat'] = trim(filter_var($_REQUEST['lat'], FILTER_SANITIZE_NUMBER_FLOAT, FILTER_FLAG_ALLOW_FRACTION));
+		$_SESSION['lon'] = trim(filter_var($_REQUEST['lon'], FILTER_SANITIZE_NUMBER_FLOAT, FILTER_FLAG_ALLOW_FRACTION));
 	}
 	else {
-		$contents = geocode(filter_var($_REQUEST['geolocate'], FILTER_SANITIZE_URL) , true);
+	 $geolocate = filter_var($_REQUEST['geolocate'], FILTER_SANITIZE_URL);
+	 echo $_REQUEST['geolocate'];
+   	 if (startsWith($geolocate, "-")) {
+		  $locateparts = explode(",",$geolocate);
+		  $_SESSION['lat'] = $locateparts[0];
+			$_SESSION['lon'] =$locateparts[1];
+		} else {
+		$contents = geocode($geolocate, true);
+		print_r($contents);
 		if (isset($contents[0]->centroid)) {
 			$geocoded = true;
 			$_SESSION['lat'] = $contents[0]->centroid->coordinates[0];
@@ -40,6 +50,7 @@
 		else {
 			$_SESSION['lat'] = "";
 			$_SESSION['lon'] = "";
+		}
 		}
 	}
 	if ($_SESSION['lat'] != "" && isMetricsOn()) {

--- a/mywaybalance.php
+++ b/mywaybalance.php
@@ -53,6 +53,10 @@
         <label for="secret_answer"> Secret question answer </label>
         <input type="text" name="secret_answer" id="secret_answer" value="' . $secret_answer . '"  />
     </div>
+        <div data-role="fieldcontain">
+        <label for="remember"> Remember these details? </label>
+        <input type="checkbox" name="remember" id="remember"  checked="yes"  />
+    </div>
         <input type="submit" value="Go!"></form>';
 }
 include_footer();

--- a/schedule_viewer.py
+++ b/schedule_viewer.py
@@ -349,14 +349,54 @@
         points.append((stop.stop_lat, stop.stop_lon))
     return points
 
+#
+# GeoPo Encode in Python
+# @author : Shintaro Inagaki
+# @param location (Dictionary) [lat (Float), lng (Float), scale(Int)]
+# @return geopo (String)
+#
+     
   def handle_json_GET_neareststops(self, params):
     """Return a list of the nearest 'limit' stops to 'lat', 'lon'"""
     schedule = self.server.schedule
     lat = float(params.get('lat'))
     lon = float(params.get('lon'))
     limit = int(params.get('limit'))
-    stops = schedule.GetNearestStops(lat=lat, lon=lon, n=limit)
-    return [StopToTuple(s) for s in stops]
+    scale = int(params.get('scale',5)) # 5 = neighbourhood ~ 1km, 4= town 5 by 7km
+    stops = []
+    
+    # 64characters (number + big and small letter + hyphen + underscore)
+    chars = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-_"
+
+    geopo = ""
+
+    # Change a degree measure to a decimal number
+    lat = (lat + 90.0) / 180 * 8 ** 10 # 90.0 is forced FLOAT type when lat is INT
+    lon = (lon + 180.0) / 360 * 8 ** 10 # 180.0 is same
+
+       # Compute a GeoPo code from head and concatenate
+    for i in range(scale):
+            order = int(lat / (8 ** (9 - i)) % 8) + int(lon / (8 ** (9 - i)) % 8) * 8
+            geopo = geopo + chars[order]
+
+    
+    for s in schedule.GetStopList():
+      if s.stop_code.find(geopo) != -1:
+        stops.append(s)
+        
+    if scale == 5:
+      return [StopToTuple(s) for s in stops]
+    else:
+      dist_stop_list = []
+      for s in stops:
+      # TODO: Use util.ApproximateDistanceBetweenStops?
+        dist = (s.stop_lat - lat)**2 + (s.stop_lon - lon)**2
+        if len(dist_stop_list) < limit:
+          bisect.insort(dist_stop_list, (dist, s))
+        elif dist < dist_stop_list[-1][0]:
+          bisect.insort(dist_stop_list, (dist, s))
+          dist_stop_list.pop()  # Remove stop with greatest distance
+      return [StopToTuple(s) for s in dist_stop_list]
 
   def handle_json_GET_boundboxstops(self, params):
     """Return a list of up to 'limit' stops within bounding box with 'n','e'