ChangeUserRole API added + bugfix

frontend/src/API/API.ts

@@ -1,4 +1,5 @@
 import { NewProjMember } from "../Components/AddMember";
+import { ProjectRoleChange } from "../Components/ChangeRole";
 import { ProjectMember } from "../Components/GetUsersInProject";
 import {
   NewWeeklyReport,
@@ -73,10 +74,7 @@ interface API {
    * @param {string} token The authentication token.
    * @returns {Promise<APIResponse<Project>>} A promise resolving to an API response with the created project.
    */
-  createProject(
-    project: NewProject,
-    token: string,
-  ): Promise<APIResponse<Project>>;
+  createProject(project: NewProject, token: string): Promise<APIResponse<void>>;
 
   /** Submits a weekly report
    * @param {NewWeeklyReport} weeklyReport The weekly report object.
@@ -148,6 +146,17 @@ interface API {
     data: StrNameChange,
     token: string,
   ): Promise<APIResponse<void>>;
+  /**
+   * Changes the role of a user in the database.
+   * @param {RoleChange} roleInfo The object containing the previous and new username.
+   * @param {string} token The authentication token.
+   * @returns {Promise<APIResponse<void>>} A promise resolving to an API response.
+   */
+  changeUserRole(
+    roleInfo: ProjectRoleChange,
+    token: string,
+  ): Promise<APIResponse<void>>;
+
   addUserToProject(
     user: NewProjMember,
     token: string,
@@ -253,7 +262,7 @@ export const api: API = {
   async createProject(
     project: NewProject,
     token: string,
-  ): Promise<APIResponse<Project>> {
+  ): Promise<APIResponse<void>> {
     try {
       const response = await fetch("/api/project", {
         method: "POST",
@@ -267,11 +276,10 @@ export const api: API = {
       if (!response.ok) {
         return { success: false, message: "Failed to create project" };
       } else {
-        const data = (await response.json()) as Project;
-        return { success: true, data };
+        return { success: true };
       }
     } catch (e) {
-      return { success: false, message: "Failed to create project" };
+      return { success: false, message: "Failed to create project!" };
     }
   },
 
@@ -320,6 +328,33 @@ export const api: API = {
     }
   },
 
+  async changeUserRole(
+    roleInfo: ProjectRoleChange,
+    token: string,
+  ): Promise<APIResponse<void>> {
+    try {
+      const response = await fetch("/api/ProjectRoleChange", {
+        method: "POST",
+        headers: {
+          "Content-Type": "application/json",
+          Authorization: "Bearer " + token,
+        },
+        body: JSON.stringify(roleInfo),
+      });
+
+      if (!response.ok) {
+        if (response.status === 403) {
+          return { success: false, message: "Cannot change your own role" };
+        }
+        return { success: false, message: "Could not change role" };
+      } else {
+        return { success: true };
+      }
+    } catch (e) {
+      return { success: false, message: "Could not change role" };
+    }
+  },
+
   async getUserProjects(
     username: string,
     token: string,