name: Deploy Environment (reusable)

on:
  workflow_call:
    inputs:
      environment:
        description: "Nome ambiente (test, prod, development, ...)"
        required: true
        type: string
      host-var:
        description: "Nome della variabile org che contiene l'host target (es. TEST_HOST, PROD_HOST)"
        required: true
        type: string
      compose-opts:
        description: "Opzioni aggiuntive per docker compose up (es. --force-recreate)"
        required: false
        type: string
        default: ""
      pre-deploy-cmd:
        description: "Comando da eseguire sul server prima del deploy (es. backup)"
        required: false
        type: string
        default: ""
      post-deploy-cmd:
        description: "Comando da eseguire sul server dopo il deploy (es. reload apache)"
        required: false
        type: string
        default: ""

jobs:
  deploy:
    runs-on: ubuntu-latest
    env:
      ENV_NAME: ${{ inputs.environment }}
      DEPLOY_USER: ${{ vars.DEPLOY_USER }}
      DEPLOY_BASE_PATH: ${{ vars.DEPLOY_BASE_PATH }}
      TARGET_HOST: ${{ vars[inputs.host-var] }}
    steps:
      - uses: actions/checkout@v6

      - name: Verifica configurazione
        run: |
          missing=0
          for v in DEPLOY_USER DEPLOY_BASE_PATH; do
            eval "val=\${$v}"
            if [ -z "$val" ]; then echo "MANCANTE: $v"; missing=1; else echo "OK: $v"; fi
          done
          if [ -z "${{ vars[inputs.host-var] }}" ]; then
            echo "MANCANTE: variabile org '${{ inputs.host-var }}'"
            missing=1
          else
            echo "OK: ${{ inputs.host-var }} = ${{ vars[inputs.host-var] }}"
          fi
          [ "$missing" -eq 0 ] || { echo "Imposta le Variables mancanti a livello org."; exit 1; }

      - name: Verifica file ambiente
        run: |
          COMPOSE="docker-compose-${ENV_NAME}.yml"
          ENV_FILE=".env_${ENV_NAME}"

          if [ ! -f "$COMPOSE" ]; then
            echo "ERRORE: $COMPOSE non trovato nel repo"
            exit 1
          fi
          echo "Compose: $COMPOSE"

          if [ -f "$ENV_FILE" ]; then
            echo "Env file: $ENV_FILE"
          else
            echo "WARNING: $ENV_FILE non trovato, il deploy procede senza env file"
          fi

          # Cerca anche eventuali file apache
          APACHE="apache-${ENV_NAME}.conf"
          if [ -f "$APACHE" ]; then
            echo "Apache config: $APACHE"
          fi

      - name: Setup SSH
        run: |
          mkdir -p ~/.ssh
          echo "${{ secrets.DEPLOY_SSH_KEY }}" > ~/.ssh/id_ed25519
          chmod 600 ~/.ssh/id_ed25519
          ssh-keyscan -H "${{ vars[inputs.host-var] }}" >> ~/.ssh/known_hosts 2>/dev/null

      - name: Pre-deploy
        run: |
          HOST="${{ vars[inputs.host-var] }}"
          REMOTE_PATH="${DEPLOY_BASE_PATH}/${{ github.repository_owner }}/${{ github.event.repository.name }}"
          APACHE="apache-${ENV_NAME}.conf"
          SITE_NAME="${{ github.event.repository.name }}.site-ssl"

          # Comandi standard (sempre eseguiti)
          ssh ${DEPLOY_USER}@${HOST} "a2dissite ${SITE_NAME} -q || true"
          ssh ${DEPLOY_USER}@${HOST} "service apache2 reload"
          if [ -f "$APACHE" ]; then
            ssh ${DEPLOY_USER}@${HOST} "cp -v /etc/apache2/sites-available/${SITE_NAME}.conf /etc/apache2/sites-available/${SITE_NAME}.conf_\$(date +%s)" || true
            ssh ${DEPLOY_USER}@${HOST} "cp -v ${REMOTE_PATH}/${APACHE} /etc/apache2/sites-available/${SITE_NAME}.conf"
          fi

          # Comando custom (solo se fornito)
          if [ -n "${{ inputs.pre-deploy-cmd }}" ]; then
            ssh ${DEPLOY_USER}@${HOST} "${{ inputs.pre-deploy-cmd }}"
          fi

      - name: Docker login sul server
        run: |
          HOST="${{ vars[inputs.host-var] }}"
          REGISTRY="${{ vars.DOCKER_REGISTRY }}"
          AUTH=$(echo -n "${{ secrets.MAVEN_USERNAME }}:${{ secrets.MAVEN_PASSWORD }}" | base64 -w0)

          # Scrive config.json direttamente, senza passare per docker login / credential helper
          ssh ${DEPLOY_USER}@${HOST} "mkdir -p /tmp/.docker-ci && echo '{\"auths\":{\"${REGISTRY}\":{\"auth\":\"${AUTH}\"}}}' > /tmp/.docker-ci/config.json"

      - name: Deploy
        run: |
          HOST="${{ vars[inputs.host-var] }}"
          REMOTE_PATH="${DEPLOY_BASE_PATH}/${{ github.repository_owner }}/${{ github.event.repository.name }}"
          COMPOSE="docker-compose-${ENV_NAME}.yml"
          ENV_FILE=".env_${ENV_NAME}"
          APACHE="apache-${ENV_NAME}.conf"

          # Crea directory remota
          ssh ${DEPLOY_USER}@${HOST} "mkdir -p ${REMOTE_PATH}"

          # Copia file
          FILES_TO_COPY="${COMPOSE}"
          [ -f "$ENV_FILE" ] && FILES_TO_COPY="${FILES_TO_COPY} ${ENV_FILE}"
          [ -f "$APACHE" ] && FILES_TO_COPY="${FILES_TO_COPY} ${APACHE}"

          scp ${FILES_TO_COPY} ${DEPLOY_USER}@${HOST}:${REMOTE_PATH}/

          # Pull e up con DOCKER_CONFIG per evitare GPG
          COMPOSE_CMD="cd ${REMOTE_PATH} && DOCKER_CONFIG=/tmp/.docker-ci docker compose -f ${COMPOSE}"
          [ -f "$ENV_FILE" ] && COMPOSE_CMD="${COMPOSE_CMD} --env-file ${ENV_FILE}"
          COMPOSE_CMD="${COMPOSE_CMD} pull && ${COMPOSE_CMD} up -d ${{ inputs.compose-opts }}"

          ssh ${DEPLOY_USER}@${HOST} "${COMPOSE_CMD}"

      - name: Post-deploy
        run: |
          HOST="${{ vars[inputs.host-var] }}"
          SITE_NAME="${{ github.event.repository.name }}.site-ssl"

          # Comandi standard (sempre eseguiti)
          ssh ${DEPLOY_USER}@${HOST} "a2ensite ${SITE_NAME} -q"
          ssh ${DEPLOY_USER}@${HOST} "service apache2 reload"
          ssh ${DEPLOY_USER}@${HOST} "DOCKER_CONFIG=/tmp/.docker-ci docker image prune -a -f"

          # Comando custom (solo se fornito)
          if [ -n "${{ inputs.post-deploy-cmd }}" ]; then
            ssh ${DEPLOY_USER}@${HOST} "${{ inputs.post-deploy-cmd }}"
          fi

      - name: Verifica container
        run: |
          HOST="${{ vars[inputs.host-var] }}"
          REMOTE_PATH="${DEPLOY_BASE_PATH}/${{ github.repository_owner }}/${{ github.event.repository.name }}"
          COMPOSE="docker-compose-${ENV_NAME}.yml"
          ENV_FILE=".env_${ENV_NAME}"

          COMPOSE_CMD="cd ${REMOTE_PATH} && DOCKER_CONFIG=/tmp/.docker-ci docker compose -f ${COMPOSE}"
          [ -f "$ENV_FILE" ] && COMPOSE_CMD="${COMPOSE_CMD} --env-file ${ENV_FILE}"

          echo "── Container status ──"
          ssh ${DEPLOY_USER}@${HOST} "${COMPOSE_CMD} ps"

          # Cleanup config temporaneo
          ssh ${DEPLOY_USER}@${HOST} "rm -rf /tmp/.docker-ci"