name: PR Deployment via Comment

on:
  issue_comment:
    types: [created]

jobs:
  check-comment:
    runs-on: ubuntu-latest
    # Only run on PR comments that contain @deployPR from authorized users
    if: |
      github.event.issue.pull_request && 
      contains(github.event.comment.body, '@deployPR') && 
      (
        github.event.comment.user.login == 'frooodle' || 
        github.event.comment.user.login == 'sf298' ||
        github.event.comment.user.login == 'Ludy87' ||
        github.event.comment.user.login == 'LaserKaspar' ||
        github.event.comment.user.login == 'sbplat' ||
        github.event.comment.user.login == 'reecebrowne'
      )
    outputs:
      pr_number: ${{ steps.get-pr.outputs.pr_number }}

    steps:
      - name: Get PR data
        id: get-pr
        uses: actions/github-script@v7
        with:
          script: |
            const prNumber = context.payload.issue.number;
            console.log(`PR Number: ${prNumber}`);
            core.setOutput('pr_number', prNumber);

      - name: Get PR branch
        uses: actions/github-script@v7
        id: get-pr-branch
        with:
          script: |
            const { owner, repo } = context.repo;
            const prNumber = context.payload.issue.number;
            
            const { data: pr } = await github.rest.pulls.get({
              owner,
              repo,
              pull_number: prNumber,
            });
            
            return pr.head.ref;

  deploy-pr:
    needs: check-comment
    runs-on: ubuntu-latest
    
    steps:
      - uses: actions/checkout@v4
        with:
          ref: ${{ steps.get-pr-branch.outputs.result }}
      
      - name: Set up JDK and Gradle
        uses: actions/setup-java@v4
        with:
          java-version: '17'
          distribution: 'temurin'
          gradle-version: 8.7

      - name: Run Gradle Command
        run: ./gradlew clean build
        env:
          DOCKER_ENABLE_SECURITY: false

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Get version number
        id: versionNumber
        run: echo "versionNumber=$(./gradlew printVersion --quiet | tail -1)" >> $GITHUB_OUTPUT

      - name: Login to Docker Hub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKER_HUB_USERNAME }}
          password: ${{ secrets.DOCKER_HUB_API }}

      - name: Build and push PR-specific image
        uses: docker/build-push-action@v6
        with:
          context: .
          file: ./Dockerfile
          push: true
          tags: ${{ secrets.DOCKER_HUB_USERNAME }}/test:pr-${{ needs.check-comment.outputs.pr_number }}
          build-args: VERSION_TAG=${{ steps.versionNumber.outputs.versionNumber }}
          platforms: linux/amd64

      - name: Set up SSH
        run: |
          mkdir -p ~/.ssh/
          echo "${{ secrets.VPS_SSH_KEY }}" > ../private.key
          sudo chmod 600 ../private.key

      - name: Deploy to VPS
        run: |
          # First create the docker-compose content locally
          cat > docker-compose.yml << 'EOF'
          version: '3.3'
          services:
            stirling-pdf:
              container_name: stirling-pdf-pr-${{ needs.check-comment.outputs.pr_number }}
              image: ${{ secrets.DOCKER_HUB_USERNAME }}/test:pr-${{ needs.check-comment.outputs.pr_number }}
              ports:
                - "${{ needs.check-comment.outputs.pr_number }}:8080"
              volumes:
                - /stirling/PR-${{ needs.check-comment.outputs.pr_number }}/data:/usr/share/tessdata:rw
                - /stirling/PR-${{ needs.check-comment.outputs.pr_number }}/config:/configs:rw
                - /stirling/PR-${{ needs.check-comment.outputs.pr_number }}/logs:/logs:rw
              environment:
                DOCKER_ENABLE_SECURITY: "false"
                SECURITY_ENABLELOGIN: "false"
                SYSTEM_DEFAULTLOCALE: en-GB
                UI_APPNAME: "Stirling-PDF PR#${{ needs.check-comment.outputs.pr_number }}"
                UI_HOMEDESCRIPTION: "PR#${{ needs.check-comment.outputs.pr_number }} for Stirling-PDF Latest"
                UI_APPNAMENAVBAR: "PR#${{ needs.check-comment.outputs.pr_number }}"
                SYSTEM_MAXFILESIZE: "100"
                METRICS_ENABLED: "true"
                SYSTEM_GOOGLEVISIBILITY: "false"
              restart: on-failure:5
          EOF

          # Then copy the file and execute commands
          scp -i ../private.key -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null docker-compose.yml ${{ secrets.VPS_USERNAME }}@${{ secrets.VPS_HOST }}:/tmp/docker-compose.yml

          ssh -i ../private.key -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -T ${{ secrets.VPS_USERNAME }}@${{ secrets.VPS_HOST }} << 'ENDSSH'
            # Create PR-specific directories
            mkdir -p /stirling/PR-${{ needs.check-comment.outputs.pr_number }}/{data,config,logs}
            
            # Move docker-compose file to correct location
            mv /tmp/docker-compose.yml /stirling/PR-${{ needs.check-comment.outputs.pr_number }}/docker-compose.yml
            
            # Start or restart the container
            cd /stirling/PR-${{ needs.check-comment.outputs.pr_number }}
            docker-compose pull
            docker-compose up -d
          ENDSSH

      - name: Post deployment URL to PR
        if: success()
        uses: actions/github-script@v7
        with:
          script: |
            const { GITHUB_REPOSITORY } = process.env;
            const [repoOwner, repoName] = GITHUB_REPOSITORY.split('/');
            const prNumber = ${{ needs.check-comment.outputs.pr_number }};

            const deploymentUrl = `http://${{ secrets.VPS_HOST }}:${prNumber}`;
            const commentBody = `## 🚀 PR Test Deployment\n\n` +
                              `Your PR has been deployed for testing!\n\n` +
                              `🔗 **Test URL:** [${deploymentUrl}](${deploymentUrl})\n\n` +
                              `This deployment will be automatically cleaned up when the PR is closed.\n\n`;

            await github.rest.issues.createComment({
              owner: repoOwner,
              repo: repoName,
              issue_number: prNumber,
              body: commentBody
            });