---
- name: Assert Debian-based distribution
  ansible.builtin.assert:
    that:
      - ansible_os_family == 'Debian'
    fail_msg: "ansible-role-pihole only supports Debian-based distributions"

- name: Install Pi-hole prerequisites
  ansible.builtin.apt:
    name:
      - curl
      - git
      - dhcpcd5
    state: present
    update_cache: true
  become: true

- name: Create /etc/pihole directory
  ansible.builtin.file:
    path: /etc/pihole
    state: directory
    mode: '0755'
  become: true

- name: Write setupVars.conf for unattended installation
  ansible.builtin.copy:
    content: |
      PIHOLE_INTERFACE={{ pihole_interface }}
      IPV4_ADDRESS={{ pihole_ipv4_address }}
      PIHOLE_DNS_1={{ pihole_dns_1 }}
      PIHOLE_DNS_2={{ pihole_dns_2 }}
      QUERY_LOGGING={{ pihole_query_logging }}
      INSTALL_WEB_SERVER={{ pihole_install_web_server }}
      INSTALL_WEB_INTERFACE={{ pihole_install_web_interface }}
      LIGHTTPD_ENABLED={{ pihole_lighttpd_enabled }}
      CACHE_SIZE={{ pihole_cache_size }}
      DNS_FLUSHED_ON_RESTART=true
      DNSSEC=false
      TEMPERATUREUNIT=C
      WEBUIBOXEDLAYOUT=traditional
      API_PRIVACY_MODE=false
      BLOCKING_ENABLED=true
    dest: /etc/pihole/setupVars.conf
    mode: '0644'
  become: true

- name: Download Pi-hole installer
  ansible.builtin.get_url:
    url: https://install.pi-hole.net
    dest: /tmp/pihole-installer.sh
    mode: '0755'

- name: Run Pi-hole unattended installer
  ansible.builtin.command:
    cmd: /tmp/pihole-installer.sh --unattended
    creates: /usr/local/bin/pihole
  become: true

- name: Remove Pi-hole installer script
  ansible.builtin.file:
    path: /tmp/pihole-installer.sh
    state: absent