- hosts: localhost
  gather_facts: yes
  tasks:

  # ----------------------------------------------------------------------
  # 1. SYSTEM INFORMATION SUMMARY
  # ----------------------------------------------------------------------
    - name: Display Grouped System Information
      ansible.builtin.debug:
        msg: |
          🖥️  System Information
          -------------------------
          Hostname        : {{ ansible_hostname }}
          FQDN            : {{ ansible_fqdn }}
          OS Family       : {{ ansible_os_family }}
          Architecture    : {{ ansible_architecture }}
          Total Memory    : {{ ansible_memtotal_mb }} MB
          
          Processor(s):
          {% for cpu in ansible_processor %}
            - {{ cpu }}
          {% endfor %}

  # ----------------------------------------------------------------------
  # 2. NETWORK INFORMATION
  # ----------------------------------------------------------------------
    - name: Show Default IPv4 Info
      ansible.builtin.debug:
        msg: |
          Default IPv4 Info:
            Address        : {{ ansible_default_ipv4.address }}
            Interface      : {{ ansible_default_ipv4.interface }}
            Gateway        : {{ ansible_default_ipv4.gateway }}
            Netmask        : {{ ansible_default_ipv4.netmask }}

    - name: Show All Network Interfaces
      ansible.builtin.debug:
        msg: |
          Network Interfaces:
          {{ ansible_interfaces | join('\n  - ') }}

    - name: Show Details for Each Interface (Excluding Loopback)
      ansible.builtin.debug:
        var: hostvars['localhost']['ansible_' + item]
      loop: "{{ ansible_interfaces }}"
      when: hostvars['localhost']['ansible_' + item] is defined and item not in ['lo']

  # ----------------------------------------------------------------------
  # 3. STORAGE INFORMATION
  # ----------------------------------------------------------------------
    - name: Display each mounted filesystem
      ansible.builtin.debug:
        msg: |
          💾 Mounted Filesystem
          -------------------------
          Mount Point : {{ item.mount }}
          Device      : {{ item.device }}
          Fstype      : {{ item.fstype }}
          {% if 'size_used' in item and 'size_total' in item and item.fstype not in ['tmpfs', 'overlay', 'squashfs'] %}
          Size Total  : {{ (item.size_total | int // (1024 * 1024)) }} MB
          Size Used   : {{ (item.size_used  | int // (1024 * 1024)) }} MB
          Size Avail  : {{ ((item.size_total | int - item.size_used | int) // (1024 * 1024)) }} MB
          {% else %}
          Size Info   : Not Available
          {% endif %}
      loop: "{{ ansible_mounts }}"
      when: item.fstype != 'tmpfs' and item.fstype != 'overlay' and item.fstype != 'squashfs'



  # ----------------------------------------------------------------------
  # 4. CURRENT USER DETAILS
  # ----------------------------------------------------------------------
    - name: Show Connection and Effective User Details
      ansible.builtin.debug:
        msg: |
          Current SSH User        : {{ ansible_user }}
          Effective Task User ID  : {{ ansible_user_id }}
          Effective User Shell    : {{ ansible_user_shell }}
          Effective User Home Dir : {{ ansible_user_dir }}

  # ----------------------------------------------------------------------
  # 5. ALL SYSTEM USERS
  # ----------------------------------------------------------------------
    - name: Gather All Users (/etc/passwd)
      ansible.builtin.getent:
        database: passwd

    - name: Show All Usernames
      ansible.builtin.debug:
        msg: |
          System Users:
          {% for u in getent_passwd | dict2items %}
            - {{ u.key }}
          {% endfor %}