- name: Determine target user
  ansible.builtin.set_fact:
    shell_user: "{{ shell_user | default( lookup('env','USER') ) }}"

- name: Detect platform
  ansible.builtin.set_fact:
    is_macos: "{{ ansible_facts['os_family'] == 'Darwin' }}"

- name: Install Stow on macOS using Homebrew cask
  community.general.homebrew:
    name: stow
    state: present
  when: is_macos
  become: true
  become_user: "{{ shell_user }}"

- name: Install Stow on Debian/Ubuntu
  ansible.builtin.apt:
    name: stow
    state: present
    update_cache: yes
  when: not is_macos and ansible_facts['os_family'] == 'Debian'
  become: true

- name: Install Stow on RedHat/CentOS/Fedora
  ansible.builtin.yum:
    name: stow
    state: present
  when: not is_macos and ansible_facts['os_family'] in ['RedHat', 'Fedora']
  become: true