Attempt lab

db.json

@@ -22,7 +22,7 @@
       "id": 4,
       "name": "Mr Pibbs",
       "cost": 0.5,
-      "remaining": 10
+      "remaining": 9
     }
   ]
 }

src/app/app.component.html

@@ -2,3 +2,5 @@ <h1>
   {{title}}
 </h1>
 <app-insert-coin></app-insert-coin>
+<app-select-item></app-select-item>
+<app-dispense></app-dispense>

src/app/app.module.ts

@@ -8,11 +8,15 @@ import { InsertCoinComponent } from './insert-coin/insert-coin.component';
 
 import { ItemService } from './item/item.service';
 import { BalanceService } from './balance/balance.service';
+import { SelectItemComponent } from './select-item/select-item.component';
+import { DispenseComponent } from './dispense/dispense.component';
 
 @NgModule({
   declarations: [
     AppComponent,
-    InsertCoinComponent
+    InsertCoinComponent,
+    SelectItemComponent,
+    DispenseComponent
   ],
   imports: [
     BrowserModule,

src/app/dispense/dispense.component.html

@@ -0,0 +1 @@
+<button (click)='onItemDispensed()'>Dispense</button>

src/app/dispense/dispense.component.spec.ts

@@ -0,0 +1,25 @@
+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { DispenseComponent } from './dispense.component';
+
+describe('DispenseComponent', () => {
+  let component: DispenseComponent;
+  let fixture: ComponentFixture<DispenseComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ DispenseComponent ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(DispenseComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

src/app/dispense/dispense.component.ts

@@ -0,0 +1,43 @@
+import { Component, OnInit } from '@angular/core';
+import { ItemService } from '../item/item.service';
+import { BalanceService } from '../balance/balance.service';
+
+@Component({
+  selector: 'app-dispense',
+  templateUrl: './dispense.component.html',
+  styleUrls: ['./dispense.component.css']
+})
+export class DispenseComponent implements OnInit {
+  public dispense;
+
+  constructor(public itemService: ItemService, public balanceService: BalanceService) {
+  }
+
+  ngOnInit() {
+  }
+
+  onItemDispensed(callback) {
+    // if the price of the item is equal or less than the balance, AND there is inventory
+    if((this.itemService.getSelectedItem() <= this.balanceService.getBalance() === true) && (this.itemService.hasRemaining() === true)) {
+      // then dispence
+      this.itemService.dispenseItem(callback);
+      // then update
+      let diff = this.itemService.getSelectedItem() - this.balanceService.getBalance()
+      this.balanceService.onBalanceUpdated(diff);
+      // inform user
+      alert('Here you go');
+    } else {
+      // if it cost more
+      if (this.itemService.getSelectedItem() > this.balanceService.getBalance()) {
+      // alert user
+      alert('Insufficient Balance');
+    } else {
+      // otherwise it means there are no more.
+      alert('Sold out');
+    }
+    }
+
+  }
+
+
+}

src/app/insert-coin/insert-coin.component.html

@@ -2,3 +2,4 @@
 <button class="button -yellow" (click)='addBalance(.05)'>05c</button>
 <button class="button -blue" (click)='addBalance(.10)'>10c</button>
 <button class="button -green" (click)='addBalance(.25)'>25c</button>
+<button class="button" (click)='returnCoins()'>return coins</button>

src/app/insert-coin/insert-coin.component.ts

@@ -21,4 +21,9 @@ export class InsertCoinComponent implements OnInit {
   	this.balanceService.addBalance(amount);
   }
 
+  returnCoins() {
+    this.balanceService.setBalance(0);
+    alert('Coins returned');
+  }
+
 }

src/app/select-item/select-item.component.html

@@ -0,0 +1,13 @@
+<p>
+  select-item works!
+</p>
+<ul>
+  <li *ngFor='let item of items'>
+    <input type='radio' [value]='item.id' name='item-list' (change)='onItemSelected(item)'>
+    {{item.name}}
+    {{item.cost}}
+<!-- <button (click)='onItemSelected(item)'>{{item.name}}</button> -->
+</li>
+</ul>
+<!-- <p>{{title}}</p>
+<input [(ngModel)]="title" type='text'> -->

src/app/select-item/select-item.component.spec.ts

@@ -0,0 +1,25 @@
+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { SelectItemComponent } from './select-item.component';
+
+describe('SelectItemComponent', () => {
+  let component: SelectItemComponent;
+  let fixture: ComponentFixture<SelectItemComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ SelectItemComponent ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(SelectItemComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

src/app/select-item/select-item.component.ts

@@ -0,0 +1,31 @@
+import { Component, OnInit } from '@angular/core';
+import { ItemService } from '../item/item.service';
+
+@Component({
+  selector: 'app-select-item',
+  templateUrl: './select-item.component.html',
+  styleUrls: ['./select-item.component.css']
+})
+export class SelectItemComponent implements OnInit {
+  public items;
+  public title = 'james is the greatest';
+  // items = [
+  //   {
+  //     name: 'max',
+  //     cost: 0.5
+  //   }
+  // ];
+  constructor(public itemService: ItemService) {
+   }
+
+  ngOnInit() {
+    this.itemService.onItemsRetrieved((items) => {
+      this.items = items;
+    })
+  }
+
+  onItemSelected(item) {
+    this.itemService.setSelectedItem(item);
+  }
+
+}