Merge branch 'task-implementation-course' into 'main'

Finished Course

See merge request !3

src/main/java/id/ac/ui/cs/advprog/tutorial0/controller/CourseController.java

+package id.ac.ui.cs.advprog.tutorial0.controller;
+
+import id.ac.ui.cs.advprog.tutorial0.exception.DuplicateCourseNameException;
+import id.ac.ui.cs.advprog.tutorial0.model.Course;
+import id.ac.ui.cs.advprog.tutorial0.service.CourseService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+@Controller
+@RequestMapping("/course")
+public class CourseController {
+
+    @Autowired
+    private CourseService service;
+
+    @GetMapping("/list")
+    public String courseListPage(Model model) {
+        List<Course> allCourse = service.findAll();
+        model.addAttribute("courses", allCourse);
+        return "courseList";
+    }
+
+    @GetMapping("/create")
+    public String createCoursePage(Model model) {
+        Course course = new Course();
+        model.addAttribute("course", course);
+        return "createCourse";
+    }
+
+    @PostMapping("/create")
+    public String createCoursePost(@ModelAttribute Course course, Model model) {
+        try {
+            service.create(course);
+        } catch (DuplicateCourseNameException e) {
+            model.addAttribute("error", e);
+            model.addAttribute("course", course);
+            return "createCourse";
+        }
+        return "redirect:list";
+    }
+
+}
\ No newline at end of file

src/main/java/id/ac/ui/cs/advprog/tutorial0/exception/DuplicateCourseNameException.java

+package id.ac.ui.cs.advprog.tutorial0.exception;
+
+public class DuplicateCourseNameException extends RuntimeException {
+
+    public DuplicateCourseNameException(String courseName) {
+        super(String.format("The course name %s is a duplicate!",courseName));
+    }
+}
\ No newline at end of file

src/main/java/id/ac/ui/cs/advprog/tutorial0/model/Course.java

+package id.ac.ui.cs.advprog.tutorial0.model;
+
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter @Setter
+public class Course {
+    private String courseId;
+    private String courseName;
+    private boolean vacancyStatus = true;
+
+}

src/main/java/id/ac/ui/cs/advprog/tutorial0/repository/CourseRepository.java

+package id.ac.ui.cs.advprog.tutorial0.repository;
+
+import id.ac.ui.cs.advprog.tutorial0.model.Course;
+import org.springframework.stereotype.Repository;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+
+@Repository
+public class CourseRepository {
+    private List<Course> courseInMemory = new ArrayList<>();
+
+    public Course create(Course course) {
+        courseInMemory.add(course);
+        return course;
+    }
+
+    public Iterator<Course> findAll() {
+        return courseInMemory.iterator();
+    }
+}

src/main/java/id/ac/ui/cs/advprog/tutorial0/repository/StudentRepository.java

 package id.ac.ui.cs.advprog.tutorial0.repository;
 
 import id.ac.ui.cs.advprog.tutorial0.model.Student;
+import org.springframework.stereotype.Repository;
 
 import java.util.ArrayList;
 import java.util.Iterator;
 import java.util.List;
 
+@Repository
 public class StudentRepository {
     private List<Student> studentsInMemory = new ArrayList<>();
 

src/main/java/id/ac/ui/cs/advprog/tutorial0/service/CourseService.java

+package id.ac.ui.cs.advprog.tutorial0.service;
+
+import id.ac.ui.cs.advprog.tutorial0.model.Course;
+
+import java.util.List;
+
+public interface CourseService {
+    public Course create(Course course);
+    public List<Course> findAll();
+}

src/main/java/id/ac/ui/cs/advprog/tutorial0/service/CourseServicelmpl.java

+package id.ac.ui.cs.advprog.tutorial0.service;
+
+import id.ac.ui.cs.advprog.tutorial0.exception.DuplicateCourseNameException;
+import id.ac.ui.cs.advprog.tutorial0.model.Course;
+import id.ac.ui.cs.advprog.tutorial0.repository.CourseRepository;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+
+@Service
+public class CourseServicelmpl implements CourseService {
+
+    @Autowired
+    private CourseRepository courseRepository;
+
+    @Override
+    public Course create(Course course) {
+        validateName(course);
+        generateNPM(course);
+        courseRepository.create(course);
+        return course;
+    }
+
+    private void validateName(Course course) {
+        List<Course> allCourse = findAll();
+        for(Course dbCourse: allCourse) {
+            if(dbCourse.getCourseName().equals(course.getCourseName())) {
+                throw new DuplicateCourseNameException(course.getCourseName());
+            }
+        }
+
+    }
+
+    private void generateNPM(Course course) {
+        StringBuilder stringBuilder = new StringBuilder();
+        for (char letter: course.getCourseName().toCharArray()) {
+            stringBuilder.append(String.valueOf((int)letter));
+        }
+        String npm = stringBuilder.toString();
+        course.setCourseId(npm);
+    }
+
+    @Override
+    public List<Course> findAll() {
+        Iterator<Course> courseIterator = courseRepository.findAll();
+        List<Course> allCourse = new ArrayList<>();
+        courseIterator.forEachRemaining(allCourse::add);
+        return allCourse;
+    }
+}
\ No newline at end of file

src/main/resources/templates/courseList.html

+<!DOCTYPE html>
+<html lang="en" xmlns:th="http://www.thymeleaf.org">
+<head>
+    <meta charset="UTF-8">
+    <title>Course List</title>
+    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-1BmE4kWBq78iYhFldvKuhfTAU6auU8tT94WrHftjDbrCEXSU1oBoqyl2QvZ6jIW3" crossorigin="anonymous">
+</head>
+<body>
+
+<h2>Course' List</h2>
+<a th:href="@{/course/create}" class="btn btn-primary btn-sm mb-3" >Create course</a>
+
+<table class="table">
+    <thead>
+    <tr>
+        <th scope="col">Course ID</th>
+        <th scope="col">Course Name</th>
+        <th scope="col">Vacancy Status</th>
+    </tr>
+    </thead>
+    <tbody th:each="course: ${courses}">
+    <tr>
+        <td th:text="${course.courseId}"></td>
+        <td th:text="${course.courseName}"></td>
+        <td th:text="${course.vacancyStatus}"></td>
+    </tr>
+
+    </tbody>
+</table>
+
+
+<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/js/bootstrap.bundle.min.js" integrity="sha384-ka7Sk0Gln4gmtz2MlQnikT1wXgYsOg+OMhuP+IlRH9sENBO0LRn5q+8nbTov4+1p" crossorigin="anonymous"></script>
+</body>
+</html>
\ No newline at end of file

src/main/resources/templates/createCourse.html

+<!DOCTYPE html>
+<html lang="en" xmlns:th="http://www.thymeleaf.org">
+<head>
+    <meta charset="UTF-8">
+    <title>Create new Course</title>
+    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-1BmE4kWBq78iYhFldvKuhfTAU6auU8tT94WrHftjDbrCEXSU1oBoqyl2QvZ6jIW3" crossorigin="anonymous">
+</head>
+<body>
+<h3>Create new Course</h3>
+<div th:if="${error!=null}" class="alert alert-danger" role="alert">
+    Duplicate course name
+</div>
+<form th:action="@{/course/create}" th:object="${course}" method="post">
+    <div class="form-group">
+        <label for="nameInput">Course Name</label>
+        <input th:field="*{courseName}" type="text" class="form-control" id="nameInput" aria-describedby="nameHelp" placeholder="Enter course' name">
+        <small id="nameHelp" class="form-text text-muted">Please enter unique name.</small>
+    </div>
+    <div class="form-group">
+        <label for="vacancyCheck">Vacancy</label>
+        <input type="checkbox" th:field="*{vacancyStatus}" id="vacancyCheck">
+    </div>
+    <button type="submit" class="btn btn-primary">Submit</button>
+</form>
+<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/js/bootstrap.bundle.min.js" integrity="sha384-ka7Sk0Gln4gmtz2MlQnikT1wXgYsOg+OMhuP+IlRH9sENBO0LRn5q+8nbTov4+1p" crossorigin="anonymous"></script>
+</body>
+</html>
\ No newline at end of file