feat(service offering): default service offering

Fixes #201

src/app/service-offering/custom-service-offering/custom-offering-restrictions.ts

@@ -1,12 +1,16 @@
 export interface CustomOfferingRestriction {
-  min: number;
-  max: number;
+  min?: number;
+  max?: number;
 }
 
-interface ICustomOfferingRestrictions {
-  cpuNumber: CustomOfferingRestriction;
-  cpuSpeed:  CustomOfferingRestriction;
-  memory:    CustomOfferingRestriction;
+export interface ICustomOfferingRestrictionsByZone {
+  [zone: string]: ICustomOfferingRestrictions;
+}
+
+export interface ICustomOfferingRestrictions {
+  cpuNumber?: CustomOfferingRestriction;
+  cpuSpeed?:  CustomOfferingRestriction;
+  memory?:    CustomOfferingRestriction;
 }
 
 export class CustomOfferingRestrictions {

src/app/service-offering/custom-service-offering/custom-service-offering.component.ts

@@ -5,7 +5,7 @@ import { TranslateService } from '@ngx-translate/core';
 import { MdlDialogReference } from '../../dialog/dialog-module';
 import { ServiceOffering } from '../../shared/models';
 import { CustomServiceOffering } from './custom-service-offering';
-import { CustomOfferingRestrictions } from './custom-offering-restrictions';
+import { CustomOfferingRestrictions, ICustomOfferingRestrictions } from './custom-offering-restrictions';
 
 
 @Component({
@@ -14,21 +14,16 @@ import { CustomOfferingRestrictions } from './custom-offering-restrictions';
   styleUrls: ['custom-service-offering.component.scss']
 })
 export class CustomServiceOfferingComponent implements OnInit {
-  public restrictions: CustomOfferingRestrictions;
-
   constructor(
     @Inject('offering') public offering: ServiceOffering,
+    @Inject('restrictions') public restrictions: ICustomOfferingRestrictions,
     @Inject('zoneId') public zoneId: string,
     public dialog: MdlDialogReference,
-    private configService: ConfigService,
     private translateService: TranslateService
   ) {}
 
   public ngOnInit(): void {
     if (this.zoneId == null) { throw new Error('Attribute \'zoneId\' is required'); }
-    this.loadCustomOfferingRestrictions().subscribe(() => {
-      this.initOffering();
-    });
   }
 
   public errorMessage(lowerLimit: any, upperLimit: any): Observable<string> {
@@ -53,24 +48,4 @@ export class CustomServiceOfferingComponent implements OnInit {
   public onCancel(): void {
     this.dialog.hide();
   }
-
-  private loadCustomOfferingRestrictions(): Observable<void> {
-    return this.configService.get('customOfferingRestrictions')
-      .map(restrictions => {
-        try {
-          this.restrictions = new CustomOfferingRestrictions(restrictions[this.zoneId]);
-        } catch (e) {
-          throw new Error('Custom offering settings must be specified. Contact your administrator.');
-        }
-      });
-  }
-
-  private initOffering(): void {
-    this.offering = new CustomServiceOffering({
-      cpuNumber: this.restrictions.cpuNumber.min,
-      cpuSpeed: this.restrictions.cpuSpeed.min,
-      memory: this.restrictions.memory.min,
-      serviceOffering: this.offering
-    });
-  }
 }

src/app/service-offering/custom-service-offering/custom-service-offering.ts

@@ -1,7 +1,13 @@
 import { ServiceOffering } from '../../shared/models';
 
 
-export class CustomServiceOffering extends ServiceOffering {
+export interface ICustomServiceOffering {
+  cpuNumber?: number;
+  cpuSpeed?: number;
+  memory?: number;
+}
+
+export class CustomServiceOffering extends ServiceOffering implements ICustomServiceOffering {
   public cpuNumber: number;
   public cpuSpeed: number;
   public memory: number;