Add server connection check to the front app.

src/main/java/org/minager/info/InfoController.java

@@ -0,0 +1,19 @@
+package org.minager.info;
+
+import org.minager.core.utils.StringUtils;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/api")
+public class InfoController {
+	@Value("${minager.version}")
+	private String version;
+	
+	@GetMapping("/version")
+	public String getVersion() {
+		return StringUtils.concat("\"", version, "\"");
+	}
+}

src/main/resources/application.properties

@@ -11,5 +11,6 @@ spring.jpa.properties.hibernate.temp.use_jdbc_metadata_defaults = false
 # ***********************************************
 # Application custom parameters
 # ***********************************************
+minager.version=0.0.1
 minecraft.server.path=/home/minecraft/server
 minecraft.server.shell.name=minecraft-server.sh

src/main/ts/package.json

@@ -20,7 +20,6 @@
     "@angular/platform-browser": "^6.1.0",
     "@angular/platform-browser-dynamic": "^6.1.0",
     "@angular/router": "^6.1.0",
-    "@ngtools/webpack": "^1.2.4",
     "@types/chart.js": "^2.7.36",
     "angular-bootstrap-md": "^6.2.4",
     "angular5-csv": "^0.2.10",

src/main/ts/src/app/app.component.html

@@ -1,6 +1,13 @@
 <app-header></app-header>
-<main class="container">
+<main class="container" *ngIf="!loading && connectedToApi">
   <router-outlet></router-outlet>
 </main>
+<main class="container" *ngIf="!loading && !connectedToApi">
+  <h3>Vous n'êtes pas connecté au serveur.</h3>
+  Veuillez contacter votre administrateur ou réessayer plus tard.
+</main>
+<main class="container" *ngIf="loading">
+  <h3>Chargement...</h3>
+</main>
 <!-- <app-footer></app-footer> -->
 

src/main/ts/src/app/app.component.ts

@@ -1,10 +1,29 @@
-import { Component } from '@angular/core';
+import { Component, OnInit } from '@angular/core';
+import { HttpClient, HttpErrorResponse } from '@angular/common/http';
+import { environment } from '../environments/environment';
 
 @Component({
   selector: 'app-root',
   templateUrl: './app.component.html',
   styleUrls: ['./app.component.scss']
 })
-export class AppComponent {
+export class AppComponent implements OnInit {
   title = 'app';
+  loading = true;
+  apiVersion;
+  connectedToApi = false;
+
+  constructor(
+    private http: HttpClient
+  ) {}
+
+  ngOnInit(): void {
+    this.http.get(`${environment.apiUrl}/api/version`).subscribe(pApiVersion => {
+      this.apiVersion = pApiVersion;
+      this.connectedToApi = true;
+      this.loading = false;
+    }, error => {
+      this.loading = false;
+    });
+  }
 }

src/main/ts/src/app/server/server.component.html

@@ -12,20 +12,21 @@
   <button mdbBtn
       *ngIf="serverStarted"
       type="button"
-      color="primary"
+      class="waves-light indigo btn-rounded"
-      class="waves-light"
       [disabled]="restarting"
       (click)="restartServer()"
       mdbWavesEffect>
+    <i class="fa fa-refresh"></i>&nbsp;
     Redémarrer
   </button>
   <button mdbBtn
       type="button"
-      class="waves-light"
+      class="waves-light btn-rounded"
-      [ngClass]="serverStarted ? 'btn-danger' : 'btn-success'"
+      [ngClass]="serverStarted ? 'red' : 'green'"
       [disabled]="restarting"
       (click)="startOrStopServer()"
       mdbWavesEffect>
+    <i class="fa" [ngClass]="serverStarted ? 'fa-stop-circle' : 'fa-play-circle'"></i>&nbsp;
     {{serverStarted ? 'Éteindre' : 'Démarrer'}}
   </button>
 </div>

src/main/ts/src/styles.scss

@@ -1 +1,4 @@
 /* You can add global styles to this file, and also import other style files */
+.btn-rounded {
+  border-radius: 10em;
+}