feat(Tag): Implement add and remove project tag endpoints

src/main/java/org/wise/portal/presentation/web/controllers/tag/TagProjectController.java

@@ -0,0 +1,96 @@
+package org.wise.portal.presentation.web.controllers.tag;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.ResponseEntity;
+import org.springframework.security.access.annotation.Secured;
+import org.springframework.security.core.Authentication;
+import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+import org.wise.portal.dao.ObjectNotFoundException;
+import org.wise.portal.domain.project.Project;
+import org.wise.portal.domain.user.User;
+import org.wise.portal.domain.usertag.UserTag;
+import org.wise.portal.presentation.web.response.ResponseEntityGenerator;
+import org.wise.portal.service.project.ProjectService;
+import org.wise.portal.service.user.UserService;
+import org.wise.portal.service.usertags.UserTagsService;
+
+@RestController
+@Secured({ "ROLE_TEACHER" })
+@RequestMapping("/api")
+public class TagProjectController {
+
+  @Autowired
+  private ProjectService projectService;
+
+  @Autowired
+  private UserService userService;
+
+  @Autowired
+  private UserTagsService userTagsService;
+
+  @PutMapping("/projects/tag/{tag}")
+  protected ResponseEntity<List<Map<String, Object>>> addTagToProjects(Authentication auth,
+      @RequestBody List<Long> projectIds, @PathVariable("tag") String tag) throws Exception {
+    User user = userService.retrieveUserByUsername(auth.getName());
+    UserTag usertag = getOrCreateTag(user, tag);
+    List<Project> projects = getProjects(projectIds);
+    for (Project project : projects) {
+      userTagsService.applyTag(project, usertag);
+    }
+    return ResponseEntityGenerator.createSuccess(createProjectsResponse(user, projects));
+  }
+
+  @DeleteMapping("/projects/tag/{tag}")
+  protected ResponseEntity<List<Map<String, Object>>> removeTagFromProjects(Authentication auth,
+      @RequestParam List<Long> projectIds, @PathVariable("tag") String tag) throws Exception {
+    User user = userService.retrieveUserByUsername(auth.getName());
+    UserTag userTag = getOrCreateTag(user, tag);
+    List<Project> projects = getProjects(projectIds);
+    for (Project project : projects) {
+      userTagsService.removeTag(project, userTag);
+    }
+    return ResponseEntityGenerator.createSuccess(createProjectsResponse(user, projects));
+  }
+
+  private UserTag getOrCreateTag(User user, String tag) {
+    UserTag archivedTag = userTagsService.get(user, tag);
+    if (archivedTag == null) {
+      archivedTag = userTagsService.createTag(user, tag);
+    }
+    return archivedTag;
+  }
+
+  private List<Project> getProjects(List<Long> projectIds) throws ObjectNotFoundException {
+    List<Project> projects = new ArrayList<Project>();
+    for (Long projectId : projectIds) {
+      projects.add(projectService.getById(projectId));
+    }
+    return projects;
+  }
+
+  private List<Map<String, Object>> createProjectsResponse(User user, List<Project> projects) {
+    List<Map<String, Object>> response = new ArrayList<Map<String, Object>>();
+    for (Project project : projects) {
+      response.add(createProjectResponse(user, project));
+    }
+    return response;
+  }
+
+  private Map<String, Object> createProjectResponse(User user, Project project) {
+    Map<String, Object> response = new HashMap<String, Object>();
+    response.put("projectId", project.getId());
+    response.put("tags", userTagsService.getTagsList(user, project));
+    return response;
+  }
+}

src/main/java/org/wise/portal/presentation/web/controllers/tag/UserTagController.java

@@ -0,0 +1,42 @@
+package org.wise.portal.presentation.web.controllers.tag;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.ResponseEntity;
+import org.springframework.security.access.annotation.Secured;
+import org.springframework.security.core.Authentication;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+import org.wise.portal.domain.user.User;
+import org.wise.portal.presentation.web.response.ResponseEntityGenerator;
+import org.wise.portal.service.user.UserService;
+import org.wise.portal.service.usertags.UserTagsService;
+
+@RestController
+@Secured({ "ROLE_TEACHER" })
+@RequestMapping("/api")
+public class UserTagController {
+
+  @Autowired
+  private UserService userService;
+
+  @Autowired
+  private UserTagsService userTagsService;
+
+  @GetMapping("/user/tags")
+  protected ResponseEntity<List<Map<String, Object>>> getTags(Authentication auth) {
+    User user = userService.retrieveUserByUsername(auth.getName());
+    List<Map<String, Object>> tags = userTagsService.getTags(user).stream().map(t -> {
+      Map<String, Object> tag = new HashMap<>();
+      tag.put("id", t.getId());
+      tag.put("text", t.getText());
+      return tag;
+    }).collect(Collectors.toList());
+    return ResponseEntityGenerator.createSuccess(tags);
+  }
+}

src/main/java/org/wise/portal/service/usertags/UserTagsService.java

@@ -22,4 +22,6 @@ public interface UserTagsService {
   void removeTag(Project project, UserTag tag);
 
   List<String> getTagsList(User user, Project project);
+
+  List<UserTag> getTags(User user);
 }

src/main/java/org/wise/portal/service/usertags/impl/UserTagsServiceImpl.java

@@ -80,4 +80,8 @@ public List<String> getTagsList(User user, Project project) {
     Collections.sort(tagsList);
     return tagsList;
   }
+
+  public List<UserTag> getTags(User user) {
+    return userTagsDao.get(user);
+  }
 }