name: "Configure nginx service container"
author: "Graycore"
description: "Pushes a Magento-aware nginx config into an already-running nginx service container, restarts it, and waits for the container healthcheck to pass."

inputs:
  container_id:
    description: "The ID of the running nginx service container. Pass the value of `job.services.nginx.id` (replace `nginx` with whatever you named the service in `services:`)."
    required: true
  magento_path:
    description: "Path to the Magento store, relative to the GitHub workspace. The workspace is mounted at /var/www/html in both the nginx and php-fpm service containers, so this is combined with that prefix to compute MAGE_ROOT."
    required: false
    default: "."
  health_timeout_seconds:
    description: "How long to wait for nginx to become healthy after the config is pushed and the container is restarted."
    required: false
    default: "10"

runs:
  using: "composite"
  steps:
    - name: Push nginx config
      shell: bash
      env:
        NGINX_CID: ${{ inputs.container_id }}
        ACTION_PATH: ${{ github.action_path }}
        MAGENTO_PATH: ${{ inputs.magento_path }}
      run: |
        case "$MAGENTO_PATH" in
          ""|".") MAGE_ROOT="/var/www/html" ;;
          /*) MAGE_ROOT="$MAGENTO_PATH" ;;
          *) MAGE_ROOT="/var/www/html/$MAGENTO_PATH" ;;
        esac
        MAGE_ROOT="${MAGE_ROOT%/}"

        sed "s|__MAGE_ROOT__|$MAGE_ROOT|g" "$ACTION_PATH/conf.d/default.conf" > /tmp/default.conf

        docker cp /tmp/default.conf "$NGINX_CID:/etc/nginx/conf.d/default.conf"

        echo "--- default.conf in container ---"
        docker exec "$NGINX_CID" cat /etc/nginx/conf.d/default.conf
        docker exec "$NGINX_CID" nginx -t

    - name: Restart nginx and wait for healthy
      shell: bash
      env:
        NGINX_CID: ${{ inputs.container_id }}
        TIMEOUT: ${{ inputs.health_timeout_seconds }}
      run: |
        docker restart "$NGINX_CID"
        deadline=$(( $(date +%s) + TIMEOUT ))
        last=""
        while [ "$(date +%s)" -lt "$deadline" ]; do
          last=$(docker inspect --format '{{.State.Health.Status}}' "$NGINX_CID" 2>/dev/null || echo "")
          running=$(docker inspect --format '{{.State.Running}}' "$NGINX_CID" 2>/dev/null || echo "")
          echo "running=$running health=$last"
          if [ "$last" = "healthy" ]; then
            exit 0
          fi
          sleep 2
        done
        echo "nginx did not reach healthy state within ${TIMEOUT}s (last=$last)"
        docker logs "$NGINX_CID" 2>&1 | tail -80 || true
        exit 1

branding:
  icon: "code"
  color: "green"