- added timer to API manager

SAPTracker/APIManager.swift

@@ -11,23 +11,44 @@ import CoreData
 
 class APIManager: NSObject {
     
+    /* Base url of all requests */
     private var baseUrlString: String?
+    
+    /* AFNetworking operation manager */
     private var manager: AFHTTPRequestOperationManager?
+    
+    /* Date of last GPS position upload */
+    var lastSync: NSDate?
+    
+    /* Number of seconds between syncs */
+    private var syncPeriod: NSTimeInterval = 3
+    
+    var loop: NSTimer?
+    
+    var backgroundTaskIdentifier: UIBackgroundTaskIdentifier?
+    
+    /* REST Paths */
+    /* Map device to competitor */
     private let postDeviceMapping = "/sailingserver/rc/racelog"
+    
+    /* Send location to server */
     private let postGPSFixPath = "/tracking/recordFixesFlatJson"
     
+    /* Singleton */
     class var sharedManager: APIManager {
         struct Singleton {
             static let sharedAPIManager = APIManager()
         }
         return Singleton.sharedAPIManager
     }
-    
-    deinit {
-        NSNotificationCenter.defaultCenter().removeObserver(self)
+    override init() {
+        super.init()
+        
+        // TODO: move to initManager
+        uploadData()
     }
 
-    /* Sets base URL for all requests. Starts reachability listener. */
+    /* Sets base URL for all requests. Request and response are JSON. Starts reachability listener. Starts timer for uploading data. */
     func initManager(baseUrlString: String) {
         if self.baseUrlString == baseUrlString {
             return
@@ -43,21 +64,21 @@ class APIManager: NSObject {
         
         // set up reachability
         let operationQueue = manager!.operationQueue
-        manager!.reachabilityManager.setReachabilityStatusChangeBlock({ (AFNetworkReachabilityStatus status) -> Void in
+        manager!.reachabilityManager.setReachabilityStatusChangeBlock({(AFNetworkReachabilityStatus status) -> Void in
             switch (status) {
             case AFNetworkReachabilityStatus.ReachableViaWWAN, AFNetworkReachabilityStatus.ReachableViaWiFi:
                 operationQueue?.suspended = false;
                 break;
             default:
                 operationQueue?.suspended = true;
+                
             }
         })
         manager!.reachabilityManager.startMonitoring()
         
-        // set up notifications
-        /*
-        NSNotificationCenter.defaultCenter().addObserver(self, selector: "sendGPSFixes:", name: DataManager.NotificationType.newGPSFix, object: nil)
-        */
+        // TODO: only one operation at a time?
+        //manager!.operationQueue.maxConcurrentOperationCount = 0
+        
     }
     
     /* Send a device to competitor mapping. */
@@ -86,4 +107,10 @@ class APIManager: NSObject {
         })
     }
     
+    /* See if any rows need to be uploaded. Schedule timer again. */
+    func uploadData() {
+        NSLog("uploadData")
+        let loop = NSTimer.scheduledTimerWithTimeInterval(syncPeriod++, target:self, selector:"uploadData", userInfo:nil, repeats:false);
+        NSRunLoop.currentRunLoop().addTimer(loop, forMode:NSRunLoopCommonModes);
+    }
 }

SAPTracker/AppDelegate.swift

@@ -18,6 +18,7 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
     func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
         // Override point for customization after application launch.
         DataManager.sharedManager
+        APIManager.sharedManager
         return true
     }
 

SAPTracker/DataManager.swift

@@ -39,8 +39,7 @@ class DataManager: NSObject {
     func newLocation(notification: NSNotification) {
         let gpsFix = NSEntityDescription.insertNewObjectForEntityForName("GPSFix", inManagedObjectContext: self.managedObjectContext!) as GPSFix;
         gpsFix.deviceUuid = DeviceUDIDManager.UDID
-        gpsFix.initWithDictionary(notification.userInfo!)        
-        return
+        gpsFix.initWithDictionary(notification.userInfo!)
    }
 
     func trackingStopped(notification: NSNotification) {