---
- name: Create Promtail directories
  ansible.builtin.file:
    path: "{{ item }}"
    state: directory
    owner: monitoring
    group: monitoring
    mode: "0755"
  loop:
    - /etc/promtail
    - /var/lib/promtail

- name: Check if Promtail is installed
  ansible.builtin.stat:
    path: /usr/local/bin/promtail
  register: promtail_binary

- name: Download Promtail
  ansible.builtin.get_url:
    url: "https://github.com/grafana/loki/releases/download/v{{ promtail_version }}/promtail-linux-{{ go_arch }}.zip"
    dest: "/tmp/promtail-{{ promtail_version }}.zip"
    mode: "0644"
  when: not promtail_binary.stat.exists

- name: Install unzip
  ansible.builtin.apt:
    name: unzip
    state: present
  when: ansible_os_family == "Debian"

- name: Extract Promtail
  ansible.builtin.unarchive:
    src: "/tmp/promtail-{{ promtail_version }}.zip"
    dest: /tmp
    remote_src: true
  when: not promtail_binary.stat.exists

- name: Install Promtail binary
  ansible.builtin.copy:
    src: /tmp/promtail-linux-{{ go_arch }}
    dest: /usr/local/bin/promtail
    mode: "0755"
    remote_src: true
  notify: Restart promtail
  when: not promtail_binary.stat.exists

- name: Deploy Promtail configuration
  ansible.builtin.template:
    src: promtail.yml.j2
    dest: /etc/promtail/promtail.yml
    owner: monitoring
    group: monitoring
    mode: "0644"
  notify: Restart promtail

- name: Deploy Promtail systemd service
  ansible.builtin.template:
    src: promtail.service.j2
    dest: /etc/systemd/system/promtail.service
    mode: "0644"
  notify:
    - Reload systemd
    - Restart promtail

- name: Enable and start Promtail
  ansible.builtin.systemd:
    name: promtail
    enabled: true
    state: started
    daemon_reload: true

- name: Clean up downloaded files
  ansible.builtin.file:
    path: "{{ item }}"
    state: absent
  loop:
    - "/tmp/promtail-{{ promtail_version }}.zip"
    - "/tmp/promtail-linux-{{ go_arch }}"