fix: able to add the same repo twice (#975)

* feat(repository-goals): pass goals to addRepoForm

* fix(add-repo-form): add check for duplicate repo

src/components/AddRepoForm.js

@@ -8,7 +8,7 @@ import {isValidRepoUrl} from "../lib/util";
 import {repoStatusCode} from "../lib/repoStatusCode";
 import {ErrorMessage} from "../styles/Typography";
 
-function AddRepoForm({goalsId, onGoalAdded}) {
+function AddRepoForm({goalsId, onGoalAdded, goals}) {
   const urlRef = useRef(null);
   const [error, setError] = useState(null);
 
@@ -22,13 +22,20 @@ function AddRepoForm({goalsId, onGoalAdded}) {
 
     const [isValid, repoUrl] = isValidRepoUrl(urlRef.current.value.replace(/\s+/g, ""));
     const statusCode = await repoStatusCode(repoUrl);
+    const goalExists = goals.nodes.find(goal => goal.full_name === repoUrl);
 
     if (!isValid) {
       urlRef.current.focus();
       setError("Invalid GitHub repository!");
       return;
     }
 
+    if (goalExists) {
+      urlRef.current.focus();
+      setError("Already exists!");
+      return;
+    }
+
     if (statusCode === 404) {
       urlRef.current.focus();
       setError("Repository not found!");

src/components/RepositoryGoals.js

@@ -75,7 +75,7 @@ function RepositoryGoals({user}) {
             </SpaceBetweenTop>
           </ContextStyle>
           <Cards fitted>
-            <AddRepoForm goalsId={goalsId} onGoalAdded={onGoalAdded} />
+            <AddRepoForm goalsId={goalsId} onGoalAdded={onGoalAdded} goals={repository.issues} />
             {repository.issues.totalCount > 0 ? (
               <ListGoals data={data} goals={repository.issues} />
             ) : (