---
- name: Test host e prerequisiti Docker
  hosts: webservers
  become: yes
  gather_facts: yes

  vars_files:
    - group_vars/all.yml

  tasks:
    - name: Test SSH
      ansible.builtin.ping:

    - name: Mostra info host
      ansible.builtin.debug:
        msg:
          - "Host: {{ ansible_hostname }}"
          - "OS: {{ ansible_distribution }} {{ ansible_distribution_version }}"
          - "Python: {{ ansible_python_version }}"

    - name: Controlla Docker CLI
      ansible.builtin.command: docker --version
      register: docker_version
      changed_when: false
      failed_when: false

    - name: Stato Docker CLI
      ansible.builtin.debug:
        msg: "{{ docker_version.stdout if docker_version.rc == 0 else 'Docker non trovato' }}"

    - name: Verifica porta target disponibile
      ansible.builtin.wait_for:
        port: "{{ app_port }}"
        state: stopped
        timeout: 1
      register: port_check
      failed_when: false

    - name: Risultato porta
      ansible.builtin.debug:
        msg: "Porta {{ app_port }} {{ 'libera' if port_check is not failed else 'gia in uso' }}"