PR-comment workflow (#45)

* added-prcomment-workflow

* workflow

* improved

* improved

* improved-workflow

* improved-workflow

* improved-workflow

* improved-workflow

* improved-workflow

* improved-workflow

* permissions removed

* permissions added

Author: yashgoyal0110

.github/workflows/pull-request-comment.yml

@@ -0,0 +1,40 @@
+name: Comment on First-Time Contributor PR
+
+on:
+  workflow_call:
+
+permissions:
+  pull-requests: write
+  issues: write
+
+jobs:
+  first-pr-comment:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check if contributor has merged PRs before
+        id: check
+        uses: actions/github-script@v7
+        with:
+          script: |
+            const owner = context.repo.owner;
+            const repo = context.repo.repo;
+            const author = context.payload.pull_request.user.login;
+
+            const { data } = await github.rest.search.issuesAndPullRequests({
+              q: `repo:${owner}/${repo} is:pr is:merged author:${author}`
+            });
+
+            core.setOutput("merged_count", data.total_count);
+
+      - name: Comment on first PR
+        if: steps.check.outputs.merged_count == '0'
+        uses: actions/github-script@v7
+        with:
+          script: |
+            await github.rest.issues.createComment({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number: context.payload.pull_request.number,
+              body: `Thank you for your first contribution! We appreciate your effort and look forward to more contributions in the future.`
+            });