Add customer overview prototype

src/main/java/catering/customer/Customer.java

@@ -0,0 +1,40 @@
+package catering.customer;
+
+public class Customer {
+
+	private int id;
+	private String surname;
+	private String name;
+
+	public Customer(String name, String surname) {
+		this.id = (int) (Math.random() * 10 * Math.random() * 10 + Math.random() * 10);
+		this.name = name;
+		this.surname = surname;
+
+	}
+
+	public int getId() {
+		return id;
+	}
+
+	public String getSurname() {
+		return surname;
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public void setId(int id) {
+		this.id = id;
+	}
+
+	public void setSurname(String surname) {
+		this.surname = surname;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+
+}

src/main/java/catering/customer/CustomerController.java

@@ -3,17 +3,22 @@ package catering.customer;
 import org.salespointframework.useraccount.Password;
 import org.salespointframework.useraccount.UserAccountManagement;
 import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
 import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.ModelAttribute;
+import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestParam;
 
 @Controller
 public class CustomerController {
+	private final CustomerRepository customerRepository;
+	private UserAccountManagement userAccountManagement;
 
-	UserAccountManagement userAccountManagement;
-	CustomerController(UserAccountManagement userAccountManagement) {
+	CustomerController(UserAccountManagement userAccountManagement, CustomerRepository customerRepository) {
 
 		this.userAccountManagement = userAccountManagement;
+		this.customerRepository = customerRepository;
 	}
 
 	@GetMapping("/register")
@@ -32,4 +37,29 @@ public class CustomerController {
 		userAccountManagement.create(username, Password.UnencryptedPassword.of(password));
 		return "redirect:/";
 	}
+
+	@GetMapping("/customer")
+	public String getCustomer(Model model) {
+		model.addAttribute("title", "Kundenverwaltung");
+		model.addAttribute("customers", customerRepository.getCustomers());
+		return "customer";
+	}
+
+	@PostMapping("/customer/remove")
+	public String removeCustomer(@RequestParam("customerID") int customerID, Model model) {
+		customerRepository.removeCustomer(customerID);
+		return "redirect:/customer";
+	}
+
+	@GetMapping("/customer/edit/{id}")
+	public String editCustomer(@PathVariable("id") int id, Model model) {
+		customerRepository.findById(id).ifPresent(customer -> model.addAttribute("customer", customer));
+		return "edit-customer";
+	}
+
+	@PostMapping("/customer/update")
+	public String updateCustomer(@ModelAttribute Customer customer) {
+		customerRepository.save(customer);
+		return "redirect:/customer";
+	}
 }

src/main/java/catering/customer/CustomerDataInitializer.java

@@ -0,0 +1,35 @@
+package catering.customer;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import org.springframework.stereotype.Component;
+import org.springframework.util.Assert;
+
+import jakarta.annotation.PostConstruct;
+
+@Component
+
+public class CustomerDataInitializer {
+
+	private static final Logger LOG = LoggerFactory.getLogger(CustomerDataInitializer.class);
+
+	private final CustomerRepository customerRepository;
+
+	public CustomerDataInitializer(CustomerRepository customerRepository) {
+		Assert.notNull(customerRepository, "CustomerRepository must not be null!");
+		this.customerRepository = customerRepository;
+	}
+
+	@PostConstruct
+	public void initialize() {
+
+		LOG.info("Creating default customer.");
+
+		customerRepository.save(new Customer("Hans", "Essen"));
+		customerRepository.save(new Customer("Angela", "Cook"));
+
+		LOG.info("Default customer created");
+
+	}
+}

src/main/java/catering/customer/CustomerRepository.java

@@ -0,0 +1,53 @@
+package catering.customer;
+
+import org.springframework.stereotype.Component;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.Optional;
+import java.util.Set;
+
+@Component
+public class CustomerRepository {
+
+	private Set<Customer> customers = new HashSet<>();
+
+	public CustomerRepository() {
+	}
+
+	public boolean addCustomer(Customer customer) {
+		return this.customers.add(customer);
+	}
+
+	private int nextId = (int) (Math.random() * 10 * Math.random() * 10 + Math.random() * 10);
+
+	public void save(Customer customer) {
+
+		if (customer.getId() == 0) {
+			customer.setId(nextId++);
+		} else {
+
+			this.customers.removeIf(p -> p.getId() == customer.getId());
+		}
+
+		this.customers.add(customer);
+	}
+
+	public long count() {
+		return this.customers.size();
+	}
+
+	public boolean removeCustomer(int customerID) {
+		return this.customers.removeIf(customer -> customer.getId() == customerID);
+	}
+
+	public Collection<Customer> getCustomers() {
+		return new ArrayList<>(this.customers);
+	}
+
+	public Optional<Customer> findById(int id) {
+		return this.customers.stream().filter(customer -> customer.getId() == id).findFirst();
+	}
+
+}

src/main/resources/static/resources/css/customer/edit-style.css

@@ -0,0 +1,21 @@
+body {
+	font: 13px/22px Helvetica, Arial, sans-serif;
+	background: #f0f0f0;
+}
+
+h2 {
+	text-decoration: underline;
+}
+
+.button {
+	cursor: pointer;
+	font-size: 13px;
+	text-decoration: none;
+	background-color: #EEEEEE;
+	color: #333333;
+	padding: 2px 6px 2px 6px;
+	border-top: 1px solid #333333;
+	border-right: 1px solid #333333;
+	border-bottom: 1px solid #333333;
+	border-left: 1px solid #333333;
+}

src/main/resources/static/resources/css/customer/style.css

@@ -0,0 +1,64 @@
+/* CSS RESET */
+
+body {
+	margin: 0 auto;
+	width: 940px;
+	font: 13px/22px Helvetica, Arial, sans-serif;
+	background: #f0f0f0;
+}
+
+h1 {
+	font-size: 3em;
+	line-height: 3.2em;
+	text-align:center;
+}
+
+table {
+	border-collapse: collapse;
+	width: 95%;
+	margin-top: 20px;
+
+}
+th,
+td {
+	border: 1px solid #dddddd;
+	text-align: left;
+	padding: 8px;
+}
+th {
+	background-color: #f2f2f2;
+	text-decoration: underline;
+	font-size: 19px;
+}
+tr{
+	font-size: 17px;
+}
+
+td:last-child,
+td:nth-child(5) {
+	width: 50px;
+	text-align: center;
+}
+tr:nth-child(even) {
+	background-color: rgb(214, 236, 216);
+}
+
+button {
+	cursor: pointer;
+	font-size: 13px;
+	margin-left: 4px;
+	margin-right: 4px;
+}
+
+.button {
+	cursor: pointer;
+	font-size: 13px;
+	text-decoration: none;
+	background-color: #EEEEEE;
+	color: #333333;
+	padding: 2px 6px 2px 6px;
+	border-top: 1px solid #333333;
+	border-right: 1px solid #333333;
+	border-bottom: 1px solid #333333;
+	border-left: 1px solid #333333;
+}

src/main/resources/templates/customer.html

@@ -0,0 +1,43 @@
+<!DOCTYPE html>
+<html>
+	<head>
+		<meta charset="utf-8" />
+		<link rel="stylesheet" th:href="@{/resources/css/customer/style.css}" />
+		<title th:text="${title}"></title>
+	</head>
+	<body>
+		<div class="verwaltung">
+			<h1>Kundenverwaltung</h1>
+			<h2>Kundenübersicht</h2>
+			<table>
+				<tr>
+					<th>ID</th>
+					<th>Nachname</th>
+					<th>Vorname</th>
+					<th>Aufträge</th>
+				</tr>
+				<tr th:each="customer : ${customers}">
+					<td th:text="${customer.id}">01</td>
+					<td th:text="${customer.surname}">Musterkoch</td>
+					<td th:text="${customer.name}">Max</td>
+					<td><a>Aufträge</a></td>
+					<td>
+						<a th:href="@{'/customer/edit/' + ${customer.id}}" class="button"
+						>Bearbeiten</a
+						>
+					</td>
+					<td>
+						<form th:action="@{/customer/remove}" method="post">
+							<input
+								type="hidden"
+								th:name="customerID"
+								th:value="${customer.id}"
+							/>
+							<button type="submit" class="delete-icon">Entfernen</button>
+						</form>
+					</td>
+				</tr>
+			</table>
+		</div>
+	</body>
+</html>

src/main/resources/templates/edit-customer.html

@@ -0,0 +1,33 @@
+<!DOCTYPE html>
+<html xmlns:th="http://www.thymeleaf.org">
+	<head>
+		<meta charset="UTF-8" />
+		<title>Kunde Bearbeiten</title>
+
+		<link
+			rel="stylesheet"
+			th:href="@{/resources/css/customer/edit-style.css}"
+		/>
+	</head>
+	<body>
+		<div class="edit-customer-form">
+			<h2>Kunde Bearbeiten</h2>
+			<form
+				th:action="@{/customer/update}"
+				th:object="${customer}"
+				method="post"
+			>
+				<input type="hidden" th:field="*{id}" />
+
+				<label for="name">Name:</label>
+				<input type="text" th:field="*{name}" required />
+
+				<label for="surname">Nachname:</label>
+				<input type="text" th:field="*{surname}" required />
+
+				<button type="submit">Save</button>
+			</form>
+			<a th:href="@{/customer}" class="button">Cancel</a>
+		</div>
+	</body>
+</html>