picture api ready

app/common/collections.js

@@ -1,3 +1,4 @@
 
 SensorData =  new Mongo.Collection("sensorData");
 ControllerState = new Mongo.Collection("controller_states");
+Picture = new Mongo.Collection("pictures");

app/server/api.js

@@ -10,7 +10,7 @@ Api.addRoute('sensorData', {
 }, {
   post: function() {
     reactToSensorData(this.bodyParams);
-    SensorData.insert({
+    var sensorObject = {
       temperatureValue: parseFloat(this.bodyParams.temperatureValue),
       humidityValue: parseFloat(this.bodyParams.humidityValue),
       tankLevel0: this.bodyParams.tankLevel0,
@@ -24,7 +24,8 @@ Api.addRoute('sensorData', {
       owner: this.bodyParams.owner,
       controllerId: this.bodyParams.controllerId,
       created_at: new Date()
-    });
+    };
+    SensorData.insert(sensorObject);
     return [];
   }
 });
@@ -116,10 +117,50 @@ Api.addRoute('state/:id', {
   }
 });
 
+Api.addRoute('picture/:id', {
+  authRequired: false
+}, {
+  post: function() {
+    console.log("setting picture", this.bodyParams);
+    return Picture.upsert({
+      controller_id: this.urlParams.id
+    }, {
+      '$set': {
+        'picture_base64': this.bodyParams.picture_base64,
+        'time': new Date()
+      }
+    });
+  },
+  get: function() {
+    var id = this.urlParams.id;
+    var res = this.response;
+    var picture_src = "/images/noImage.png";
+    var pictureEntry = Picture.findOne({
+      controller_id: id
+    });
+    if (pictureEntry) {
+      var imageData = pictureEntry.picture_base64;
+      picture_src = "data:image/jpeg;charset=utf-8;base64," + imageData;
+    }
+    return {
+      picture: picture_src
+    };
+  }
+});
+
+function base64_to_buffer(base64string) {
+  var buf;
+  if (typeof Buffer.from === "function") {
+    buf = Buffer.from(base64string, 'base64');
+  } else {
+    buf = new Buffer(base64string, 'base64');
+  }
+  return buf;
+}
 
 function stateOrDefault(id) {
   var stateEntry = ControllerState.findOne({
-    controller_id: id,
+    controller_id: id
   });
 
   if (stateEntry === undefined) {