Add AI PR Description Action

.github/workflows/pr-description.yml

@@ -0,0 +1,54 @@
+name: 🤖 AI PR Description Generator (with Template)
+
+on:
+  pull_request:
+    types: [opened, edited]
+
+jobs:
+  generate-description:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout Repo
+        uses: actions/checkout@v4
+
+      - name: Install GitHub CLI
+        uses: cli/cli-action@v2
+
+      - name: Fetch PR Commits
+        id: fetch_commits
+        run: |
+          COMMITS=$(gh pr view ${{ github.event.pull_request.number }} --json commits --jq '.commits[].message' | sed 's/^/- /')
+          echo "commits<<EOF" >> $GITHUB_ENV
+          echo "$COMMITS" >> $GITHUB_ENV
+          echo "EOF" >> $GITHUB_ENV
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Generate PR Description with OpenAI
+        id: generate_description
+        run: |
+          RESPONSE=$(curl -s https://api.openai.com/v1/chat/completions \
+            -H "Authorization: Bearer $OPENAI_API_KEY" \
+            -H "Content-Type: application/json" \
+            -d '{
+              "model": "gpt-4o",
+              "messages": [{
+                "role": "user",
+                "content": "Given the following commit messages:\n\n'"${commits}"'\n\nFill the following pull request template. Only fill the \"## Description\" section:\n\n<!--\n  Thanks for contributing!\n\n  Provide a description of your changes below and a general summary in the title.\n-->\n\n## Jira Ticket\n\n[SP-0000](https://syncrow.atlassian.net/browse/SP-0000)\n\n## Description\n\n<!--- Describe your changes in detail -->\n\n## How to Test\n\n<!--- Describe the created APIs / Logic -->"
+              }]
+            }')
+
+          DESCRIPTION=$(echo "$RESPONSE" | jq -r '.choices[0].message.content')
+          echo "description<<EOF" >> $GITHUB_ENV
+          echo "$DESCRIPTION" >> $GITHUB_ENV
+          echo "EOF" >> $GITHUB_ENV
+        env:
+          OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
+          commits: ${{ env.commits }}
+
+      - name: Update PR Body with AI Description
+        run: |
+          gh pr edit ${{ github.event.pull_request.number }} --body "${{ env.description }}"
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}