name: Deploy to WordPress

on:
  push:
    branches: [ main ]

permissions:
  contents: write

# Cancel previous deploys if a new push arrives while one is running.
concurrency:
  group: deploy-production
  cancel-in-progress: true

jobs:
  # -- Run tests first --
  test:
    name: Pre-deploy tests
    uses: ./.github/workflows/ci.yml

  # -- Push clean plugin files to the deploy branch --
  sync-deploy-branch:
    name: Sync deploy branch
    runs-on: ubuntu-latest
    needs: test
    environment: production
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Sync deploy branch
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"

          # Fetch the remote deploy branch (may not exist on first run).
          git fetch origin deploy:deploy 2>/dev/null || true

          # If deploy branch exists, check it out; otherwise create it.
          if git rev-parse --verify deploy >/dev/null 2>&1; then
            git checkout deploy
          else
            git checkout --orphan deploy
            git rm -rf --cached . > /dev/null 2>&1 || true
          fi

          # Remove all tracked files so we start clean each time.
          git rm -rf . > /dev/null 2>&1 || true

          # Checkout only the plugin runtime files from main.
          git checkout main -- \
            admin/ \
            includes/ \
            languages/ \
            public/ \
            peptide-news-plugin.php

          # Commit only if there are actual changes.
          git add -A
          if git diff-index --quiet HEAD -- 2>/dev/null; then
            echo "No changes to deploy."
          else
            git commit -m "Deploy ${GITHUB_SHA::7} from main"
          fi

          # Normal push (fast-forward).
          git push origin deploy

  # -- Deploy to Hostinger via rsync --
  # Rsync the deploy branch content from the GH Actions runner directly
  # to the plugin directory on Hostinger (avoids needing git access on server).
  deploy:
    name: Deploy to Hostinger
    runs-on: ubuntu-latest
    needs: sync-deploy-branch
    environment: production
    steps:
      - name: Checkout deploy branch
        uses: actions/checkout@v4
        with:
          ref: deploy

      - name: Setup SSH key
        run: |
          mkdir -p ~/.ssh
          echo "${{ secrets.SSH_PRIVATE_KEY }}" > ~/.ssh/deploy_key
          chmod 600 ~/.ssh/deploy_key
          ssh-keyscan -p ${{ secrets.SSH_PORT }} ${{ secrets.SSH_HOST }} >> ~/.ssh/known_hosts 2>/dev/null || true

      - name: Deploy via rsync
        run: |
          rsync -avz --delete \
            --exclude='.git' \
            --exclude='.github' \
            -e "ssh -i ~/.ssh/deploy_key -p ${{ secrets.SSH_PORT }} -o StrictHostKeyChecking=no" \
            ./ ${{ secrets.SSH_USERNAME }}@${{ secrets.SSH_HOST }}:/home/${{ secrets.SSH_USERNAME }}/domains/peptiderepo.com/public_html/wp-content/plugins/peptide-news-plugin/

      - name: Purge LiteSpeed Cache
        if: success()
        run: |
          ssh -i ~/.ssh/deploy_key -p ${{ secrets.SSH_PORT }} -o StrictHostKeyChecking=no \
            ${{ secrets.SSH_USERNAME }}@${{ secrets.SSH_HOST }} << 'ENDSSH'
            CACHE_DIR="/home/${{ secrets.SSH_USERNAME }}/domains/peptiderepo.com/public_html/wp-content/litespeed"
            if [ -d "$CACHE_DIR" ]; then
              rm -rf "$CACHE_DIR"/*
              echo "LiteSpeed cache purged."
            fi
            touch "/home/${{ secrets.SSH_USERNAME }}/domains/peptiderepo.com/public_html/.lscache_purge" 2>/dev/null || true
            echo "Cache purge signal sent."
          ENDSSH

      - name: Cleanup
        if: always()
        run: rm -f ~/.ssh/deploy_key

      - name: Deploy summary
        run: |
          echo "## Deployment Complete" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY
          echo "- **Branch:** \`${{ github.ref_name }}\`" >> $GITHUB_STEP_SUMMARY
          echo "- **Commit:** \`${GITHUB_SHA::7}\`" >> $GITHUB_STEP_SUMMARY
          echo "- **Method:** rsync from deploy branch to Hostinger" >> $GITHUB_STEP_SUMMARY
          echo "- **Deployed to:** ${{ secrets.WP_SITE_URL || 'peptiderepo.com' }}" >> $GITHUB_STEP_SUMMARY