issue #52: Added most used language in generating tagline

ai/generateTagline.js

@@ -3,11 +3,12 @@ const { GoogleGenerativeAI } = require("@google/generative-ai");
 const genAI = new GoogleGenerativeAI(process.env.API);
 const model = genAI.getGenerativeModel({ model: "gemini-1.5-flash" });
 
-export async function generateUserTagline(username, contributions) {
+export async function generateUserTagline(username, contributions, mostUsedLanguage) {
   const prompt = `
-    Generate a custom tagline for the GitHub user "${username}" based on the following activity and contribution patterns:
+    Generate a custom tagline for the GitHub user "${username}" based on the following activity, contribution patterns and most used language:
     - Total Contributions: ${contributions.totalCommitContributions}
     - Active Coding Days: ${contributions.contributionCalendar.totalContributions}
+    - most used language: ${mostUsedLanguage}
     
     The tagline should be consistent, meaningful, and provide an at-a-glance summary of the user's work..
     Only generate one tagline, only one.

src/app/api/ai/route.js

@@ -64,9 +64,25 @@ export async function POST(req) {
     const data = await response.json();
     // console.log(data);
     if (data.data.user) {
+      const repositories = data.data.user.repositories.nodes;
+
+      // Count each language's occurrence
+      const languageCounts = {};
+      repositories.forEach(repo => {
+        const language = repo.primaryLanguage?.name;
+        if (language) {
+          languageCounts[language] = (languageCounts[language] || 0) + 1;
+        }
+      });
+
+      // Determine the most used language(s)
+      const mostUsedLanguages = Object.keys(languageCounts).sort(
+        (a, b) => languageCounts[b] - languageCounts[a]
+      );
+
       const contributions = data.data.user.contributionsCollection;
       // console.log(contributions)
-      const tagline = await generateUserTagline(username, contributions);
+      const tagline = await generateUserTagline(username, contributions, mostUsedLanguages.slice(0, 1));
       return NextResponse.json({
         exists: true,
         tagline,