# PURPOSE: Show disk usage
# DESCRIPTION: Report attached Windows volumes and common operational Linux mounts.
# TARGETS: windows, linux
# INPUTS (omitted values inherit inventory / role defaults):
#   aim_debug [bool]: false
# AUTH: existing inventory / Vault credentials; no embedded passwords.
# NOTES:
#   Windows reports attached storage volumes from community.windows.win_disk_facts; mapped/network drives are excluded.
#   Linux excludes pseudo/system mounts and reports common operational paths plus network/storage filesystems.
# EXAMPLE: ansible-playbook -i inventories/<customer>/hosts.yml
#          playbooks/debug_show_disk_usage.yml --limit <host> --vault-id <customer>@prompt

  - name: Debug | Windows disk usage
    hosts: windows
    gather_facts: false
    tasks:
      - name: AIM | Validate diagnostics option
        ansible.builtin.assert:
          that:
            - (aim_debug | default(false)) is boolean or (aim_debug | default(false) | string | lower) in 
              ['true', 'false']
          fail_msg: aim_debug must be a YAML/JSON boolean.
          quiet: true

      - name: AIM | Reject mixed platform membership
        ansible.builtin.assert:
          that:
            - (group_names | intersect(['linux', 'windows', 'sophosxgs', 'pfsense']) | length) <= 1
          fail_msg: This host belongs to incompatible platform groups. Use globally unique subgroups.
          quiet: true

      - name: AIM | Execution context
        ansible.builtin.debug:
          msg:
            host: '{{ inventory_hostname }}'
            diagnostics: Enabled; secret values are never included by this task.
        when: aim_debug | default(false) | bool

      - name: Windows | Gather attached disk and volume facts
        community.windows.win_disk_facts:
          filter:
            - partitions
            - volumes
        changed_when: false

      - name: Windows | Normalize attached volume usage
        ansible.builtin.set_fact:
          _windows_disk_report: "{{ ansible_facts.disks | default([]) | aim_report_disks('windows') }}"

      - name: Windows | Print disk usage
        ansible.builtin.debug:
          msg: |-
            {{ inventory_hostname }}
            {% for d in _windows_disk_report.filesystems | default([]) %}
            {% if d.status == 'available' %}
            {{ '%-18s' | format(d.name) }} {{ (d.used_bytes / 1073741824) | round(2) }} GB / {{ (d.total_bytes / 1073741824) | round(2) }} GB | {{ d.used_percent | round(1) }}% used | {{ (d.available_bytes / 1073741824) | round(2) }} GB free | {{ d.filesystem_type | default('unknown', true) }} | {{ d.mount }}
            {% else %}
            {{ '%-18s' | format(d.name) }} unavailable | {{ d.mount }}
            {% endif %}
            {% endfor %}

      - name: AIM | Publish operation result
        ansible.builtin.set_stats:
          per_host: true
          aggregate: false
          data:
            aim_output:
              protocol: aim_output_v1
              schema: filesystem_usage_v1
              data: "{{ _windows_disk_report }}"
  - name: Debug | Linux disk usage
    hosts: linux
    gather_facts: false
    become: false
    vars:
      _disk_common_mounts:
        - /
        - /boot
        - /boot/efi
        - /home
        - /var
        - /var/log
        - /tmp
        - /opt
        - /srv
      _disk_network_storage_fstypes:
        - nfs
        - nfs4
        - cifs
        - smb3
        - ceph
        - glusterfs
        - fuse.sshfs
        - fuse.glusterfs
      _disk_excluded_fstypes:
        - proc
        - sysfs
        - devtmpfs
        - tmpfs
        - cgroup
        - cgroup2
        - overlay
        - squashfs
        - nsfs
        - tracefs
        - debugfs
        - securityfs
        - pstore
        - configfs
        - hugetlbfs
        - mqueue
        - rpc_pipefs
        - autofs
        - fusectl
        - binfmt_misc
    tasks:
      - name: AIM | Validate diagnostics option
        ansible.builtin.assert:
          that:
            - (aim_debug | default(false)) is boolean or (aim_debug | default(false) | string | lower) in 
              ['true', 'false']
          fail_msg: aim_debug must be a YAML/JSON boolean.
          quiet: true

      - name: AIM | Reject mixed platform membership
        ansible.builtin.assert:
          that:
            - (group_names | intersect(['linux', 'windows', 'sophosxgs', 'pfsense']) | length) <= 1
          fail_msg: This host belongs to incompatible platform groups. Use globally unique subgroups.
          quiet: true

      - name: Linux | Collect mount facts
        ansible.builtin.setup:
          filter:
            - ansible_mounts
          gather_subset:
            - '!all'
            - '!min'
        changed_when: false

      - name: Linux | Reset selected mount report
        ansible.builtin.set_fact:
          _linux_disk_mounts: []
      - name: Linux | Select common operational mounts
        ansible.builtin.set_fact:
          _linux_disk_mounts: '{{ (_linux_disk_mounts | default([])) + [item] }}'
        loop: '{{ ansible_facts.mounts | default(ansible_mounts | default([])) }}'
        loop_control:
          label: "{{ item.mount | default('?') }}"
        when:
          - item.fstype | default('') not in _disk_excluded_fstypes
          - >-
            (item.mount | default('')) in _disk_common_mounts
            or (item.mount | default('')).startswith('/mnt/')
            or (item.mount | default('')).startswith('/media/')
            or (item.fstype | default('')) in _disk_network_storage_fstypes

      - name: Linux | Execution context
        ansible.builtin.debug:
          msg:
            host: '{{ inventory_hostname }}'
            selected_mounts: "{{ (_linux_disk_mounts | default([])) | map(attribute='mount') | list }}"
            diagnostics: Enabled; pseudo/system mounts are excluded.
        when: aim_debug | default(false) | bool

      - name: Linux | Print disk usage
        ansible.builtin.debug:
          msg: |-
            {{ inventory_hostname }}
            {% for m in (_linux_disk_mounts | default([]) | sort(attribute='mount')) %}
            {% set total = m.size_total | default(0) | float %}
            {% set free = m.size_available | default(0) | float %}
            {% set used = total - free %}
            {% set pct = ((used / total) * 100) if total > 0 else 0 %}
            {{ '%-18s' | format(m.mount) }} {{ (used / 1073741824) | round(2) }} GB / {{ (total / 1073741824) | round(2) }} GB | {{ pct | round(1) }}% used | {{ (free / 1073741824) | round(2) }} GB free | {{ m.fstype }}
            {% endfor %}
      - name: AIM | Publish operation result
        ansible.builtin.set_stats:
          per_host: true
          aggregate: false
          data:
            aim_output:
              protocol: aim_output_v1
              schema: filesystem_usage_v1
              data: "{{ _linux_disk_mounts | aim_report_disks('linux') }}"