From e8aa16ae4a3453430da44082216d4c6465fd0cb8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E2=80=9CSinyru=E2=80=9D?=
 <“znchen720@gmail.comgit config --global pull.rebase truegit config --global branch.autosetuprebase alwaysgit config --global push.default simplegit config --global branch.autosetupmerge truegit config --global core.editor atom>
Date: Fri, 17 Mar 2017 16:26:10 -0400
Subject: [PATCH] Finish Angular Lab on Components

Implemented a vending machine app that enables user to
1. increase balance
2. buy drinks
3. return remaining balance
4. retrieve and updates database

Name: Zhu Chen
Github: https://github.com/sinyru
Paired with: Lauren Paik, Faith Kaya
---
 db.json                                       |  6 +--
 src/app/app.component.html                    |  1 +
 src/app/app.component.ts                      |  1 +
 src/app/app.module.ts                         |  4 +-
 .../insert-coin/insert-coin.component.html    |  3 +-
 src/app/insert-coin/insert-coin.component.ts  |  6 +++
 src/app/select-item/select-item.component.css |  0
 .../select-item/select-item.component.html    |  7 ++++
 .../select-item/select-item.component.spec.ts | 25 +++++++++++++
 src/app/select-item/select-item.component.ts  | 37 +++++++++++++++++++
 10 files changed, 85 insertions(+), 5 deletions(-)
 create mode 100644 src/app/select-item/select-item.component.css
 create mode 100644 src/app/select-item/select-item.component.html
 create mode 100644 src/app/select-item/select-item.component.spec.ts
 create mode 100644 src/app/select-item/select-item.component.ts

diff --git a/db.json b/db.json
index baf7af9..dc3315b 100644
--- a/db.json
+++ b/db.json
@@ -4,19 +4,19 @@
       "id": 1,
       "name": "Sprite",
       "cost": 0.5,
-      "remaining": 10
+      "remaining": 4
     },
     {
       "id": 2,
       "name": "Coke",
       "cost": 0.5,
-      "remaining": 10
+      "remaining": 7
     },
     {
       "id": 3,
       "name": "Dr. Pepper",
       "cost": 0.75,
-      "remaining": 10
+      "remaining": 8
     },
     {
       "id": 4,
diff --git a/src/app/app.component.html b/src/app/app.component.html
index 20f9499..9faf7de 100644
--- a/src/app/app.component.html
+++ b/src/app/app.component.html
@@ -2,3 +2,4 @@ <h1>
   {{title}}
 </h1>
 <app-insert-coin></app-insert-coin>
+<app-select-item></app-select-item>
diff --git a/src/app/app.component.ts b/src/app/app.component.ts
index ef01059..86fca99 100644
--- a/src/app/app.component.ts
+++ b/src/app/app.component.ts
@@ -1,5 +1,6 @@
 import { Component } from '@angular/core';
 
+
 @Component({
   selector: 'app-root',
   templateUrl: './app.component.html',
diff --git a/src/app/app.module.ts b/src/app/app.module.ts
index b290358..1764d2e 100644
--- a/src/app/app.module.ts
+++ b/src/app/app.module.ts
@@ -8,11 +8,13 @@ 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';
 
 @NgModule({
   declarations: [
     AppComponent,
-    InsertCoinComponent
+    InsertCoinComponent,
+    SelectItemComponent
   ],
   imports: [
     BrowserModule,
diff --git a/src/app/insert-coin/insert-coin.component.html b/src/app/insert-coin/insert-coin.component.html
index 0513897..12baed4 100644
--- a/src/app/insert-coin/insert-coin.component.html
+++ b/src/app/insert-coin/insert-coin.component.html
@@ -1,4 +1,5 @@
-<p class="display -sm-width">{{ coinBalance? (coinBalance | currency:'USD':true): 'INSERT COIN' }}</p>
+<p class="display -sm-width">{{ coinBalance? (coinBalance | currency:'EUR':true): 'INSERT COIN' }}</p>
 <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>
diff --git a/src/app/insert-coin/insert-coin.component.ts b/src/app/insert-coin/insert-coin.component.ts
index 7c16031..70fe1b3 100644
--- a/src/app/insert-coin/insert-coin.component.ts
+++ b/src/app/insert-coin/insert-coin.component.ts
@@ -21,4 +21,10 @@ export class InsertCoinComponent implements OnInit {
   	this.balanceService.addBalance(amount);
   }
 
+  returnCoins() {
+    this.balanceService.setBalance(0);
+    alert('Coins Return!');
+  }
+
+
 }
diff --git a/src/app/select-item/select-item.component.css b/src/app/select-item/select-item.component.css
new file mode 100644
index 0000000..e69de29
diff --git a/src/app/select-item/select-item.component.html b/src/app/select-item/select-item.component.html
new file mode 100644
index 0000000..60a1b7e
--- /dev/null
+++ b/src/app/select-item/select-item.component.html
@@ -0,0 +1,7 @@
+<li *ngFor='let item of items'>
+  <input type="radio" [value]="item.id"
+  (change)='onItemSelected(item)' name="item-list">
+  {{item.name}}
+</li>
+
+<button class="button" (click)='getDrink()'>Dispense</button>
diff --git a/src/app/select-item/select-item.component.spec.ts b/src/app/select-item/select-item.component.spec.ts
new file mode 100644
index 0000000..217a5ae
--- /dev/null
+++ b/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();
+  });
+});
diff --git a/src/app/select-item/select-item.component.ts b/src/app/select-item/select-item.component.ts
new file mode 100644
index 0000000..b55392e
--- /dev/null
+++ b/src/app/select-item/select-item.component.ts
@@ -0,0 +1,37 @@
+import { Component, OnInit } from '@angular/core';
+import { ItemService } from '../item/item.service';
+import { BalanceService } from '../balance/balance.service';
+
+
+@Component({
+  selector: 'app-select-item',
+  templateUrl: './select-item.component.html',
+  styleUrls: ['./select-item.component.css']
+})
+export class SelectItemComponent implements OnInit {
+  public items;
+
+  constructor(public itemService: ItemService, public balanceService: BalanceService) { }
+  // constructor(public balanceService: BalanceService) { }
+  ngOnInit() {
+    this.itemService.onItemsRetrieved((items)=>{
+      this.items = items;
+    })
+  }
+
+  onItemSelected(item) {
+    this.itemService.setSelectedItem(item);
+  }
+
+  getDrink() {
+    if (this.itemService.hasSufficientBalance(this.balanceService.getBalance())){
+      this.itemService.dispenseItem(()=>{
+        alert("You got " + this.itemService.getSelectedItem().name);
+        this.balanceService.deductBalance(this.itemService.getSelectedItem().cost);
+      })
+    } else {
+      alert("Not Enough money");
+    }
+  }
+
+}