name: Monthly Dependency Updates via OpenRewrite
run-name: Monthly dependency updates started by ${{ gitea.actor }}
on:
  schedule:
    # Run monthly on the 1st at 2 AM UTC
    - cron: '0 2 1 * *'
  workflow_dispatch:
    inputs:
      urgent_security:
        description: 'Apply urgent security updates outside schedule'
        required: false
        type: boolean
        default: false

jobs:
  dependency-updates:
    runs-on: ubuntu-latest
    permissions:
      contents: write
      pull-requests: write
    
    steps:
      - name: Check out repository code
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
          token: ${{ secrets.TOKEN }}

      - name: JDK setup
        uses: actions/setup-java@v4
        with:
          distribution: 'zulu'
          java-version: '17'

      - name: Validate Gradle Wrapper
        uses: gradle/actions/wrapper-validation@v3

      - name: Create update branch
        run: |
          BRANCH_NAME="dependency-updates-$(date +%Y-%m)"
          git checkout -b $BRANCH_NAME
          git push origin $BRANCH_NAME
          echo "BRANCH_NAME=$BRANCH_NAME" >> $GITHUB_ENV

      - name: Run full test suite before updates
        run: |
          echo "Running pre-update test validation..."
          ./gradlew clean test integrationTestOnly
          echo "Pre-update tests completed successfully"

      - name: Run OpenRewrite Dry Run
        run: |
          echo "Running OpenRewrite dry run to preview changes..."
          ./gradlew rewriteDryRun
          echo "Dry run completed"

      - name: Apply OpenRewrite Updates
        run: |
          echo "Applying OpenRewrite updates..."
          ./gradlew rewriteRun
          
          # Check if any changes were made
          if git diff --quiet; then
            echo "No dependency updates available"
            exit 0
          else
            echo "Dependency updates applied"
          fi

      - name: Run full test suite after updates
        run: |
          echo "Running post-update test validation..."
          ./gradlew clean test integrationTestOnly
          echo "Post-update tests completed successfully"

      - name: Commit and push changes
        if: success()
        run: |
          git config --global user.name "${{ gitea.actor }}"
          git config --global user.email "${{ gitea.actor }}@users.noreply.github.com"
          
          # Add all changes
          git add .
          
          # Create commit message with update summary
          COMMIT_MSG="Monthly dependency updates via OpenRewrite - $(date +%Y-%m)
          
          Applied automatic dependency updates:
          - Spring Boot minor version updates
          - SpringDoc OpenAPI compatible updates  
          - PostgreSQL driver updates
          - Spring ecosystem security patches
          
          All tests passed before and after updates.
          
          Changes previewed via OpenRewrite dry run and validated."
          
          git commit -m "$COMMIT_MSG"
          git push origin $BRANCH_NAME

      - name: Create Pull Request against test branch
        if: success()
        run: |
          # Get list of changes for PR description
          CHANGES=$(git diff HEAD~1 --name-only | paste -sd ", " -)
          
          # Create PR via Gitea API
          curl -X POST "https://gitea.hithomelabs.com/api/v1/repos/Hithomelabs/CFTunnels/pulls" \
            -H "Authorization: token ${{ secrets.TOKEN }}" \
            -H "Content-Type: application/json" \
            -d "{
              \"title\": \"Monthly dependency updates via OpenRewrite - $(date +%Y-%m)\",
              \"body\": \"## Summary\\n\\nAutomated monthly dependency updates via OpenRewrite for $(date +%B %Y).\\n\\n### Changes Applied\\n\\n✅ **Test Validation Completed**\\n- Full test suite passed before updates\\n- Full test suite passed after updates\\n\\n📦 **Updated Dependencies**\\n- Spring Boot minor version updates (3.4.x → 3.5.x compatible)\\n- SpringDoc OpenAPI compatible version updates\\n- PostgreSQL driver updates\\n- Spring ecosystem security patches\\n\\n### Files Modified\\n\\n$CHANGES\\n\\n### Safety Information\\n\\n🔒 **Manual Review Required**\\n- All updates applied via OpenRewrite safe recipes\\n- No breaking changes included\\n- No major version updates\\n- Experimental features excluded\\n\\n### Next Steps\\n\\n1. Review the changes in this PR\\n2. Merge if no conflicts\\n3. Deploy to staging for final validation\\n\\n---\\n\\n*This PR was created automatically via OpenRewrite on $(date +%Y-%m-%d)*\",
              \"head\": \"$BRANCH_NAME\",
              \"base\": \"test\"
            }"

      - name: Notify Gitea users
        if: success()
        run: |
          curl -X POST "https://gitea.hithomelabs.com/api/v1/repos/Hithomelabs/CFTunnels/issues" \
            -H "Authorization: token ${{ secrets.TOKEN }}" \
            -H "Content-Type: application/json" \
            -d "{
              \"title\": \"📦 Monthly dependency updates PR created for review\",
              \"body\": \"OpenRewrite has created dependency updates PR **#$(${{ env.BRANCH_NAME }})** for manual review.\\n\\n🔗 **Pull Request**: [Monthly dependency updates via OpenRewrite - $(date +%Y-%m)](https://gitea.hithomelabs.com/Hithomelabs/CFTunnels/pulls/${{ env.BRANCH_NAME }})\\n\\n✅ **Status**: Ready for manual review\\n📊 **Test Results**: All tests passed\\n🔄 **Target Branch**: test\\n\\nPlease review the changes and merge if approved.\",
              \"labels\": [\"dependencies\", \"openrewrite\", \"monthly-update\"]
            }"

      - name: Handle no updates case
        if: failure()
        run: |
          echo "No dependency updates were needed this month"
          curl -X POST "https://gitea.hithomelabs.com/api/v1/repos/Hithomelabs/CFTunnels/issues" \
            -H "Authorization: token ${{ secrets.TOKEN }}" \
            -H "Content-Type: application/json" \
            -d "{
              \"title\": \"📋 Monthly dependency update check completed\",
              \"body\": \"OpenRewrite completed its monthly dependency check for $(date +%B %Y).\\n\\n✅ **Status**: No updates required\\n🔍 **Result**: All dependencies are up to date\\n📅 **Date\": $(date +%Y-%m-%d)\\n\\nNo action needed this month.\",
              \"labels\": [\"dependencies\", \"openrewrite\", \"no-updates\"]
            }"

      - name: Clean up branch on failure
        if: failure()
        run: |
          echo "Cleaning up failed update branch..."
          git push origin --delete $BRANCH_NAME 2>/dev/null || true