SignReport handler changes along with tests and TS interface

frontend/src/API/API.ts

@@ -153,6 +153,18 @@ interface API {
     projectName: string,
     token: string,
   ): Promise<APIResponse<string>>;
+
+  /**
+   * Signs a report. Keep in mind that the user which the token belongs to must be
+   * the project manager of the project the report belongs to.
+   *
+   * @param {number} reportId The id of the report to sign
+   * @param {string} token The authentication token
+   */
+  signReport(
+    reportId: number,
+    token: string,
+  ): Promise<APIResponse<string>>;
 }
 
 /** An instance of the API */
@@ -581,4 +593,27 @@ export const api: API = {
       });
     }
   },
+
+  async signReport(
+    reportId: number,
+    token: string,
+  ): Promise<APIResponse<string>> {
+    try {
+      const response = await fetch(`/api/signReport/${reportId}`, {
+        method: "PUT",
+        headers: {
+          "Content-Type": "application/json",
+          Authorization: "Bearer " + token,
+        },
+      });
+
+      if (!response.ok) {
+        return { success: false, message: "Failed to sign report" };
+      } else {
+        return { success: true, message: "Report signed" };
+      }
+    } catch (e) {
+      return { success: false, message: "Failed to sign report" };
+    }
+  }
 };