---
- name: Swap | Check current swap status
  ansible.builtin.command: swapon --show --noheadings
  register: swap_current
  changed_when: false
  check_mode: false
  tags:
    - swap

- name: Swap | Check if swap file already enabled
  ansible.builtin.set_fact:
    swap_already_enabled: "{{ swap_file_path in swap_current.stdout }}"
  tags:
    - swap

- name: Swap | Configure swap
  when: not swap_already_enabled
  tags:
    - swap
  block:
    - name: Swap | Check if swap file exists
      ansible.builtin.stat:
        path: "{{ swap_file_path }}"
      register: swap_file_stat

    - name: Swap | Create swap file
      ansible.builtin.command:
        cmd: fallocate -l {{ swap_file_size_mb | int }}M {{ swap_file_path }}
        creates: "{{ swap_file_path }}"
      when: not swap_file_stat.stat.exists

    - name: Swap | Set swap file permissions
      ansible.builtin.file:
        path: "{{ swap_file_path }}"
        mode: "0600"
        state: file
      when: not swap_file_stat.stat.exists

    - name: Swap | Format swap file
      ansible.builtin.command: mkswap {{ swap_file_path }}
      when: not swap_file_stat.stat.exists
      changed_when: true

    - name: Swap | Enable swap file
      ansible.builtin.command: swapon {{ swap_file_path }}
      changed_when: true

- name: Swap | Add swap to fstab
  ansible.builtin.mount:
    path: none
    src: "{{ swap_file_path }}"
    fstype: swap
    opts: sw
    passno: "0"
    dump: "0"
    state: present
  tags:
    - swap

- name: Swap | Configure swappiness
  ansible.builtin.sysctl:
    name: vm.swappiness
    value: "{{ swap_swappiness | string }}"
    state: present
    reload: true
    sysctl_file: "{{ swap_sysctl_file }}"
  tags:
    - swap

- name: Swap | Verify swap is active
  ansible.builtin.command: swapon --show
  register: swap_show
  changed_when: false
  check_mode: false
  tags:
    - swap

- name: Swap | Display swap status
  ansible.builtin.debug:
    msg: "{{ swap_show.stdout_lines }}"
  tags:
    - swap