writes device fingerprint onto screen when device unregistered

js/app.js

@@ -17,7 +17,10 @@
 
 /* 'downloads' for debugging, 
  * 'wgt-private' for any release */
-var STORAGE_SPACE = "downloads";
+var STORAGE_SPACE = "wgt-private";
+var SHORT_WAIT = 10000;
+var LONG_WAIT = 600000;
+var wait_time = LONG_WAIT;
 var events = null;
 var deviceFingerprint = null;
 var eventsTimeStamp = 0;
@@ -31,8 +34,72 @@ var eventsTimeStamp = 0;
         watchRadius;
     
     
-    function getJsonFile(name, callback) {
+    function deleteFile(name, callback) {
     	
+    	/* successful resolution of wgt-private */
+    	function onsuccess(dir){
+            var dirfile = null;
+            try {
+            	dirfile = dir.resolve(name);
+            } catch (exc) {
+            	console.log(exc.message)
+            }
+            
+            // if file not existed, call callback with null
+            if(dirfile == null) {
+            	callback();
+            	return;
+            } else {
+            
+            	// if file was found, delete it
+            	dir.deleteFile(dirfile.fullPath,  function() {
+            		console.log("deleted");
+            		callback();
+            	},  
+            	function(e) {console.log(e)});
+            }
+    	}
+        
+        function onerror(e){
+        	console.log("error"+e);
+        }
+        
+        function onsuccessPermission(){
+        	tizen.filesystem.resolve(STORAGE_SPACE, onsuccess, onerror, "rw");
+        }
+        
+        function onErrorPermission(e){
+        	console.log("error "+ JSON.stringify(e));
+        }
+        
+    	tizen.ppm.requestPermission("http://tizen.org/privilege/mediastorage", onsuccessPermission, onErrorPermission);
+    }
+    
+    function clearDownloads() {
+        var onError = function(e) {
+     	   console.log('Error!' + e.message);
+     	 };
+
+     	 var onResolveSuccess = function(dir) {
+     	   var onListFilesSuccess = function(files) {
+     	     files.forEach(function(file) {
+     	       if (!file.isDirectory) {
+     	         dir.deleteFile(file.fullPath, onDeleteSuccess, onError);
+     	       }
+     	     });
+     	   };
+     	   
+     	   dir.listFiles(onListFilesSuccess, onError);
+     	 };
+
+     	 var onDeleteSuccess = function() {};
+
+        tizen.filesystem.resolve('/opt/usr/media/Downloads', onResolveSuccess, onError);
+
+    }
+
+    function getJsonFile(name, callback) {
+    	console.log("searching for File");
     	/* successful resolution of wgt-private */
     	function onsuccess(dir){
             var dirfile = null;
@@ -78,20 +145,17 @@ var eventsTimeStamp = 0;
     	 */
     	
     	getJsonFile("calendarevents", function(eventlist) {events = eventlist;});
-    	console.log(events);
     }
     
     function getNewFingerprintFromServer() {
-    	console.log("fingerprintfromserver");
     	getFileFromServer("/devicefingerprint.json", function() {
-        	console.log("1");
+    		console.log("getting device fingerprint from server")
     		getJsonFile("devicefingerprint", function(df) {devicefingerprint = df; console.log(devicefingerprint)});
     	});
     }
     
 
     function getDeviceFingerprint() {
-    	console.log("getfingerprint");
     	// check if device id set already as global, if it is return
     	if(deviceFingerprint != null)
     		return;
@@ -110,6 +174,7 @@ var eventsTimeStamp = 0;
     }
     
     function getFileFromServer(route, callback) {
+    	console.log("getting file");
     	var server = "https://longitudecalendar.com/"
     	var downloadRequest = new tizen.DownloadRequest(server + route, STORAGE_SPACE);
     	tizen.systeminfo.getPropertyValue('NETWORK', function(networkInfo) {
@@ -146,58 +211,28 @@ var eventsTimeStamp = 0;
                 console.log('Failed with id: ' + id + ', error name: ' + error.name);
             }
         };
-    downloadId = tizen.download.start(downloadRequest, listener);
+    tizen.download.start(downloadRequest, listener);
     }
-    function getJSON() {
+    
+    function updateCalendar() {
     	
     	if(deviceFingerprint == null) {
+    		console.log("no fingerprint, loading from file or server");
     		getDeviceFingerprint();
+    		wait_time = SHORT_WAIT;
     		return false;
     	}
     		
-    
+    	function deleteCallback() {
-    	console.log(deviceFingerprint);
+    		console.log("done");
-    	console.log(deviceFingerprint.deviceId);
+    		console.log("getting new calendar events");
     		getFileFromServer("userinfo/" + deviceFingerprint.deviceId + "/calendarevents.json", readJSON);
+    	} 
+    	
+    	console.log("deleting calendarevents");
+		deleteFile("calendarevents", deleteCallback);
+        	
     	return true;
-    	
-        var downloadRequest = new tizen.DownloadRequest('https://longitudecalendar.com/userinfo/107971745944668140075/calendarevents.json', STORAGE_SPACE);
-            tizen.systeminfo.getPropertyValue('NETWORK', function(networkInfo) {
-                if (networkInfo.networkType === 'NONE') {
-                    console.log('Network connection is not available.Download is not possible.');
-                    downloadRequest = null;
-                }
-            });
-            
-            var listener = {
-                    /* When the download progresses (interval is platform-dependent) */
-                    onprogress: function(id, receivedSize, totalSize) {
-                    	console.log('progress for id: ' + id);
-                    	console.log('received: ' + receivedSize + ", total: " + totalSize);
-                    },
-
-                    /* When the user pauses the download */
-                    onpaused: function(id) {
-                        console.log('Paused with id: ' + id);
-                    },
-
-                    /* When the user cancels the download */
-                    oncanceled: function(id) {
-                        console.log('Canceled with id: ' + id);
-                    },
-
-                    /* When the download is completed */
-                    oncompleted: function(id, fullPath) {
-                        console.log('Completed with id: ' + id + ', full path: ' + fullPath);
-                        readJSON();
-                    },
-
-                    /* When the download fails */
-                    onfailed: function(id, error) {
-                        console.log('Failed with id: ' + id + ', error name: ' + error.name);
-                    }
-                };
-            downloadId = tizen.download.start(downloadRequest, listener);
     }
     
     /**
@@ -353,8 +388,8 @@ var eventsTimeStamp = 0;
     
     function renderEarth(date, minute, second) {
     	
-		earthColor = "#0077BE";
+		var earthColor = "#0077BE";
-    	earthDistance = document.body.clientWidth / 2 - 120;
+    	var earthDistance = document.body.clientWidth / 2 - 120;
         renderCircle(ctxContent, polToCart(earthDistance, minuteToAngle(minute + second / 60)), 10, earthColor);    	
     }
 
@@ -386,9 +421,7 @@ var eventsTimeStamp = 0;
      * @private
      */
     function drawWatchLayout() {
-        var grd,
+        var i,
-            angle,
-            i,
             j;
 
         // Clear canvas
@@ -442,32 +475,29 @@ var eventsTimeStamp = 0;
         // Draw the minute needle
         
         renderEarth(ctxContent, minute, second);
-        // renderNeedle(ctxContent, Math.PI * (((minute + second / 60) / 30) - 0.5), 0, 0.70, 3, "#454545");
-
-        // Draw the minute/hour circle
-        // renderCircle(ctxContent, center, 8, "#454545");
-        
-        // Draw the second needle
-        // ctxContent.shadowOffsetX = 4;
-        // ctxContent.shadowOffsetY = 4;
-        // renderNeedle(ctxContent, Math.PI * ((second / 30) - 0.5), -0.10, 0.85, 1, "#c4c4c4");
-
-        // Draw the second circle
-        // ctxContent.shadowOffsetX = 0;
-        // ctxContent.shadowOffsetY = 0;
-        // renderCircle(ctxContent, center, 5, "#c4c4c4");
-
-        // Draw the center circle
-        // renderCircle(ctxContent, center, 2, "#454545");
-
-        // Draw the text for date
-        // renderText(ctxContent, date, center.x, center.y + (watchRadius * 0.5), 25, "#999999");
        
+        /* if no return from server yet */
         if(events == null)
         	return;
         
-    	thickness = 18;
+        /* if device not registered */
-        edge = document.body.clientWidth / 2 - thickness / 2 - 2;
+        if(events.kind == "unregistered") {
+        	wait_time = SHORT_WAIT;
+        	if(deviceFingerprint === null) {
+        		console.log("no fingerprint to render");
+        	} else {
+        		console.log("rendering text");
+        		renderText(ctxContent, deviceFingerprint.deviceId, center.x, center.y, 20, "FF0000");
+        	}
+        	return;
+        }
+        
+        console.log("switched to long wait");
+        wait_time = LONG_WAIT;
+        
+        /* else: device registered and all events saved */
+    	var thickness = 18;
+        var edge = document.body.clientWidth / 2 - thickness / 2 - 2;
         
         for(var event in events.events){
         	var startedBeforeToday = false;
@@ -521,11 +551,11 @@ var eventsTimeStamp = 0;
        
     }
     
-    function updateCalendar(offset_ms) {
+    function loopCalendar(offset_ms) {
     	var d = new Date();
     	var currentTime = d.getTime();
     	if(eventsTimeStamp + offset_ms < currentTime){
-    		getJSON();
+    		updateCalendar();
 			eventsTimeStamp = currentTime;
 		}
     	
@@ -575,7 +605,7 @@ var eventsTimeStamp = 0;
      * @private
      */
     function init() {
-
+    	// clearDownloads();
         setDefaultVariables();
         setDefaultEvents();
 
@@ -586,7 +616,7 @@ var eventsTimeStamp = 0;
         // Update the content of the watch every second
         setInterval(function() {
             drawWatchContent();
-            updateCalendar(5000); //60000 -> 10 minutes
+            loopCalendar(wait_time);
         }, 1000);
     }