Resolve "[Queue-2.0] Create Course and Create Edition buttons"

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Closes #393 (closed)

src/main/java/nl/tudelft/queue/controller/AdminController.java

+/*
+ * Queue - A Queueing system that can be used to handle labs in higher education
+ * Copyright (C) 2016-2021  Delft University of Technology
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package nl.tudelft.queue.controller;
+
+import javax.validation.Valid;
+
+import nl.tudelft.labracore.api.*;
+import nl.tudelft.labracore.api.dto.*;
+import nl.tudelft.labracore.lib.security.user.AuthenticatedPerson;
+import nl.tudelft.labracore.lib.security.user.Person;
+import nl.tudelft.queue.dto.create.QueueCourseCreateDTO;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.security.access.prepost.PreAuthorize;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.*;
+
+@Controller
+@PreAuthorize("@permissionService.isAdmin()")
+@RequestMapping("/admin")
+public class AdminController {
+
+	@Autowired
+	private CourseControllerApi cApi;
+
+	@Autowired
+	private ProgramControllerApi programApi;
+
+	/**
+	 * Adds a model attribute to every template resolution for recognizing the type of page we are in. For
+	 * this controller all pages will be in the "admin"-area.
+	 *
+	 * @return The generic page name: "admin".
+	 */
+	@ModelAttribute("page")
+	public static String page() {
+		return "admin";
+	}
+
+	/**
+	 * Return the main admin page.
+	 *
+	 * @return The Thymeleaf view to resolve.
+	 */
+	@GetMapping
+	public String getAdminPage() {
+		return "admin/view";
+	}
+
+	/**
+	 * Get the list of courses in Queue.
+	 *
+	 * @param  model The model to fill out for Thymeleaf template resolution.
+	 * @return       The thymeleaf template to resolve.
+	 */
+	@GetMapping("/courses")
+	public String getAllCourses(Model model) {
+		var courses = cApi.getAllCourses().collectList().block();
+		model.addAttribute("courses", courses);
+		return "admin/view/courseList";
+	}
+
+	/**
+	 * Get the admin overview for a specific course.
+	 *
+	 * @param  courseId The id of the course to retrieve.
+	 * @param  model    The model to fill out for Thymeleaf template resolution.
+	 * @return          The thymeleaf template to resolve.
+	 */
+	@GetMapping("/course/{courseId}")
+	public String viewCourse(@PathVariable Long courseId, Model model) {
+		var course = cApi.getCourseById(courseId).block();
+		model.addAttribute("course", course);
+		return "admin/view/course";
+	}
+
+	/**
+	 *
+	 * @param  model The model to fill out for Thymeleaf template resolution.
+	 * @return       The thymeleaf template to resolve.
+	 */
+	@GetMapping("/course/add")
+	public String getCreateCoursePage(@AuthenticatedPerson Person person, Model model) {
+		QueueCourseCreateDTO create = QueueCourseCreateDTO.builder().build();
+		model.addAttribute("course", create);
+		model.addAttribute("programs",
+				programApi.getAllRelevantPrograms(person.getId()).collectList().block());
+		return "admin/create/course";
+	}
+
+	/**
+	 * Creates a new course based on the infromation filled in in the {@link QueueCourseCreateDTO} object.
+	 *
+	 * @param  create The DTO used to create the course
+	 * @return        A redirect to the admin page
+	 */
+	@PostMapping("/course/add")
+	public String createCourse(@Valid @ModelAttribute("course") QueueCourseCreateDTO create) {
+		CourseCreateDTO course = create.apply();
+		cApi.addCourse(course).block();
+
+		return "redirect:/admin";
+	}
+}