---
- name: Manage swap file entry in fstab
  ansible.posix.mount:
    name: swap
    src: '{{ swap_file_path }}'
    fstype: swap
    opts: sw
    state: '{{ swap_file_state }}'

- name: Check if swap file exists
  ansible.builtin.stat:
    path: '{{ swap_file_path }}'
    get_checksum: false
  register: _swap_file_check
  changed_when: false

- name: Set variable for existing swap file size
  ansible.builtin.set_fact:
    swap_file_existing_size_mb: '{{ (_swap_file_check.stat.size / 1024 / 1024) | int }}'
  when: _swap_file_check.stat.exists

- name: Disable swap
  ansible.builtin.command: swapoff -a
  when: swap_file_state == 'absent' or (swap_file_state == 'present' and swap_file_existing_size_mb != swap_file_size_mb)
  changed_when: true

- name: Ensure swap file doesn't exist
  ansible.builtin.file:
    path: '{{ swap_file_path }}'
    state: absent
  when: swap_file_state == 'absent' or (swap_file_state == 'present' and swap_file_existing_size_mb != swap_file_size_mb)

- name: Ensure swap file exists # noqa no-free-form
  ansible.builtin.command: >
    {{ swap_file_create_command }}
    creates='{{ swap_file_path }}'
  register: _swap_file_create
  when: swap_file_state == "present"

- name: Set permissions on swap file
  ansible.builtin.file:
    path: '{{ swap_file_path }}'
    owner: root
    group: root
    mode: '0600'
  when: swap_file_state == "present"

- name: Make swap file if necessary
  ansible.builtin.command: mkswap {{ swap_file_path }}
  when: swap_file_state == "present" and _swap_file_create is changed
  register: _mkswap_result
  changed_when: true

- name: Run swapon on the swap file
  ansible.builtin.command: swapon {{ swap_file_path }}
  when: swap_file_state == "present" and _mkswap_result is changed
  changed_when: true

- name: Set swappiness
  ansible.posix.sysctl:
    name: vm.swappiness
    value: '{{ swap_swappiness }}'
    state: present
  when: swap_file_state == "present"