provider for pinging sensebox

src/pages/ota-wizard/ota-wizard.html

@@ -38,6 +38,11 @@
     <!-- OTA Mode guide-->
     <ion-slide>
       <ion-grid>
+        <ion-row align-items-center>
+          <ion-col col-12>
+          <h2 translate>OTAWIZ.OTAMODE.TITLE</h2>
+        </ion-col>
+        </ion-row>
         <ion-row align-items-center>
           <ion-col col-12 col-md-6>
             <ion-card (click)="showAutomatic()">
@@ -70,7 +75,6 @@
       <ion-grid>
         <ion-row align-items-center>
           <ion-col col-12 col-md-6>
-            <h2 translate>OTAWIZ.OTAMODE.TITLE</h2>
             <img class="tutorial_gif" src="../../assets/imgs/ota_modus.gif" />
             <p [innerHTML]="'OTAWIZ.OTAMODE.TEXT' | translate"></p>
           </ion-col>
@@ -81,7 +85,7 @@
               <li [innerHTML]="'OTAWIZ.OTAMODE.STEP3' | translate"></li>
             </ol>
             <!-- @TODO: diagram! -->
-            <button ion-button large clear icon-end color="primary" (click)="slides.slideNext()">
+            <button  ion-button large clear icon-end color="primary" (click)="slides.slideNext()">
               {{ 'OTAWIZ.BTN_NEXT' | translate }}
               <ion-icon name="arrow-forward"></ion-icon>
             </button>
@@ -93,21 +97,26 @@
     <ion-slide *ngIf="automatic" id="automatic-slide">
       <ion-grid>
         <ion-row align-items-center>
-          <ion-col col-12 col-md-6>
-            <h2 translate>OTAWIZ.OTAMODE.TITLE</h2>
-            <p [innerHTML]="'OTAWIZ.OTAMODE.TEXT' | translate"></p>
-          </ion-col>
           <ion-col col-12 col-md-6>
             <ol style="text-align: left">
-              <li [innerHTML]="'OTAWIZ.OTAMODE.STEP1' | translate"></li>
-              <li [innerHTML]="'OTAWIZ.OTAMODE.STEP2' | translate"></li>
-              <li [innerHTML]="'OTAWIZ.OTAMODE.STEP3' | translate"></li>
+              <li [innerHTML]="'OTAWIZ.OTAMODE.AUTOMATIC.STEP1' | translate"></li>
+              <li [innerHTML]="'OTAWIZ.OTAMODE.AUTOMATIC.STEP2' | translate"></li>
+              <li [innerHTML]="'OTAWIZ.OTAMODE.AUTOMATIC.STEP3' | translate"></li>
             </ol>
+          </ion-col>
+          <ion-col col-12 col-md-6>
+
             <!-- @TODO: diagram! -->
-            <button ion-button large clear icon-end color="primary" (click)="slides.slideNext()">
+            <button  *ngIf="requestSuccessful;else request" ion-button large clear icon-end color="primary" (click)="slides.slideNext()">
               {{ 'OTAWIZ.BTN_NEXT' | translate }}
               <ion-icon name="arrow-forward"></ion-icon>
             </button>
+            <ng-template #request>
+              <button  ion-button large clear icon-end color="primary" (click)="makeRequest()">
+                {{ 'OTAWIZ.BTN_REQUEST' | translate }}
+                <ion-icon name="arrow-forward"></ion-icon>
+              </button>
+            </ng-template>
           </ion-col>
         </ion-row>
       </ion-grid>

src/pages/ota-wizard/ota-wizard.ts

@@ -50,6 +50,7 @@ export class OtaWizardPage implements OnInit, OnDestroy {
   private counts = { compile: 0, connect: 0, upload: 0 }
   private manual = false;
   private automatic = false;
+  private requestSuccessful = false;
   constructor(
     private network: Network,
     private otaWifi: OtaWifiProvider,
@@ -141,7 +142,16 @@ export class OtaWizardPage implements OnInit, OnDestroy {
 
   }
   
-  activateOta(){
+  async makeRequest(){
+    
+    try{
+      // open modal that shows loading
+      await this.otaWifi.activateOtaMode();
+      this.requestSuccessful = true;
+    }
+    catch(err){
+      console.log(err)
+    }
     // Sends request; upon successful response go to next slide (wifi selection)
 
   }

src/providers/ota-wifi/ota-wifi.ts

@@ -9,7 +9,7 @@ declare var WifiWizard2: any
 // corresponding to the initial MCU firmware
 const SSID_PREFIX = 'sensebox'
 const SENSEBOX_API = 'http://192.168.1.1'
-
+const URL_sensebox = 'http://192.168.0.46'
 /*
   Interface for uploading a binary to a senseBox MCU.
 */
@@ -79,6 +79,17 @@ export class OtaWifiProvider {
       .toPromise()
   }
 
+  async activateOtaMode():Promise<any>{
+    return this.http.get(URL_sensebox)
+                .pipe(timeout(5000),catchError(err=>{
+                  throw new Error('senseBox not found. Is it running the proper OpenSenseMap Sketch?')
+                }))
+                .toPromise()
+                .then((response:any)=>{
+                  return response;
+                })
+  }
+
 }
 
 export enum WifiStrategy {