Consider the top languages when inferring from solution

src/components/Projects/SubmitProjectModal.tsx

@@ -6,12 +6,15 @@ import { httpPost } from '../../lib/http';
 import { GitHubIcon } from '../ReactIcons/GitHubIcon.tsx';
 import { SubmissionRequirement } from './SubmissionRequirement.tsx';
 import { useCopyText } from '../../hooks/use-copy-text.ts';
+import { getTopGitHubLanguages } from '../../lib/github.ts';
 
 type SubmitProjectResponse = {
   repositoryUrl: string;
   submittedAt: Date;
 };
 
+type GitHubApiLanguagesResponse = Record<string, number>;
+
 type VerificationChecksType = {
   repositoryExists: 'pending' | 'success' | 'error';
   readmeExists: 'pending' | 'success' | 'error';
@@ -170,12 +173,16 @@ export function SubmitProjectModal(props: SubmitProjectModalProps) {
         projectUrlExists: 'success',
       });
 
-      const languagesUrl = `${mainApiUrl}/languages`;
-      const languagesResponse = await fetch(languagesUrl);
+      const languagesResponse = await fetch(`${mainApiUrl}/languages`);
       let languages: string[] = [];
       if (languagesResponse.ok) {
-        const languagesData = await languagesResponse.json();
-        languages = Object.keys(languagesData || {})?.slice(0, 4);
+        const languagesData =
+          (await languagesResponse.json()) as GitHubApiLanguagesResponse;
+
+        languages = getTopGitHubLanguages(languagesData);
+        if (languages?.length === 0) {
+          languages = Object.keys(languagesData || {})?.slice(0, 4);
+        }
       }
 
       const submitProjectUrl = `${import.meta.env.PUBLIC_API_URL}/v1-submit-project/${projectId}`;

src/lib/github.ts

@@ -33,18 +33,22 @@ export async function getFormattedStars(
   return formatter.format(stars);
 }
 
-const defaultRanking = "7th";
+const defaultRanking = '7th';
 let ranking: string;
 
 export async function getRepositoryRank(
   repo = 'kamranahmedse/developer-roadmap',
 ): Promise<string> {
   try {
-    const response = await fetch(`https://api.github.com/search/repositories?q=stars:>100000&o=desc&s=stars`);
+    const response = await fetch(
+      `https://api.github.com/search/repositories?q=stars:>100000&o=desc&s=stars`,
+    );
     const json = await response.json();
     const repositories = json.items || [];
     for (let rank = 1; rank <= repositories.length; rank++) {
-      if (repositories[rank - 1].full_name.toLowerCase() === repo.toLowerCase()) {
+      if (
+        repositories[rank - 1].full_name.toLowerCase() === repo.toLowerCase()
+      ) {
         ranking = `${rank}${getOrdinalSuffix(rank)}`;
       }
     }
@@ -70,4 +74,22 @@ function getOrdinalSuffix(rank: number): string {
     default:
       return 'th';
   }
-}
+}
+
+// fetches the top languages of a GitHub repository
+// i.e. 90% of the bytes are in these languages
+export function getTopGitHubLanguages(languages: Record<string, number>) {
+  const total = Object.values(languages).reduce((a, b) => a + b, 0);
+
+  let sum = 0;
+  let topLanguages = [];
+  for (const [language, bytes] of Object.entries(languages)) {
+    sum += bytes;
+    topLanguages.push(language);
+    if (sum / total >= 0.9) {
+      break;
+    }
+  }
+
+  return topLanguages;
+}