name: Deploy

on:
  push:
    branches: [main]

jobs:
  deploy:
    runs-on: prod-deploy
    env:
      DEPLOY_BASE: /opt/opc-manager
      REPO_URL: https://qiukai:${{ secrets.DEPLOY_TOKEN }}@git.qiukai.me/qiukai/opc-manager.git
      SERVICE_NAME: opc-manager
    steps:
      - name: Clone and deploy
        run: |
          set -e
          RELEASE_ID="${{ github.sha }}"
          RELEASE_DIR="${DEPLOY_BASE}/releases/${RELEASE_ID}"
          CLONE_DIR="/tmp/opc-deploy-${RELEASE_ID}"

          echo "=== 1. Clone repository ==="
          rm -rf "${CLONE_DIR}"
          git clone --depth 1 --branch main "${REPO_URL}" "${CLONE_DIR}"

          echo "=== 2. Prepare release directory ==="
          rm -rf "${RELEASE_DIR}"
          mkdir -p "${RELEASE_DIR}"

          # Copy repo content to release dir (exclude .git, .env, venv, data)
          rsync -a --exclude='.git' \
            --exclude='.env' \
            --exclude='.env.local' \
            --exclude='.venv' \
            --exclude='data/uploads' \
            --exclude='data/opc.sqlite' \
            --exclude='__pycache__' \
            --exclude='.gitea' \
            "${CLONE_DIR}/" "${RELEASE_DIR}/"

          echo "=== 3. Link shared resources ==="
          # .env from shared dir (not in git)
          ln -sfn "${DEPLOY_BASE}/shared/.env" "${RELEASE_DIR}/.env"
          # uploads directory from shared (persist across releases)
          mkdir -p "${DEPLOY_BASE}/shared/uploads"
          ln -sfn "${DEPLOY_BASE}/shared/uploads" "${RELEASE_DIR}/data/uploads"

          echo "=== 4. Setup Python venv ==="
          cd "${RELEASE_DIR}"
          python3 -m venv .venv
          . .venv/bin/activate
          pip install --no-cache-dir -r requirements.txt

          echo "=== 5. Restart service ==="
          # Update WorkingDirectory in service via symlink approach
          # The systemd service points to /opt/opc-manager/current
          ln -sfn "${RELEASE_DIR}" "${DEPLOY_BASE}/current"
          systemctl restart "${SERVICE_NAME}"
          sleep 3

          echo "=== 6. Health check ==="
          for i in 1 2 3 4 5; do
            if curl -fsS http://127.0.0.1:5177/api/health >/dev/null 2>&1; then
              echo "Health check passed"
              break
            fi
            echo "Attempt $i: waiting for service..."
            sleep 2
          done

          # Final verify
          if ! curl -fsS http://127.0.0.1:5177/api/health >/dev/null 2>&1; then
            echo "ERROR: Health check failed after 5 attempts"
            echo "Rolling back to previous release..."
            PREV=$(ls -t "${DEPLOY_BASE}/releases" | sed -n '2p')
            if [ -n "${PREV}" ]; then
              ln -sfn "${DEPLOY_BASE}/releases/${PREV}" "${DEPLOY_BASE}/current"
              systemctl restart "${SERVICE_NAME}"
              echo "Rolled back to ${PREV}"
            fi
            exit 1
          fi

          echo "=== 7. Cleanup old releases ==="
          find "${DEPLOY_BASE}/releases" -mindepth 1 -maxdepth 1 -type d | sort | head -n -5 | xargs -r rm -rf

          echo "=== 8. Cleanup temp ==="
          rm -rf "${CLONE_DIR}"

          echo "=== Deploy complete: ${RELEASE_ID} ==="