---
# Install and configure Grafana Alloy log shipping agent.
# Debian/Ubuntu: alloy package (included in default repos).
# Alpine: alloy package (included in default repos).
# FreeBSD: pkgng (grafana-alloy).

# ── Debian/Ubuntu ────────────────────────────────────────────────────────────

- name: Install alloy (Debian)
  ansible.builtin.apt:
    name: alloy
    state: present
  when: ansible_facts["os_family"] == "Debian"

# ── Alpine ───────────────────────────────────────────────────────────────────

- name: Install alloy (Alpine)
  community.general.apk:
    name: alloy
    state: present
  when: ansible_facts["os_family"] == "Alpine"

- name: Fix alloy storage dir ownership (Alpine)
  ansible.builtin.file:
    path: /var/lib/alloy
    state: directory
    owner: alloy
    group: alloy
    recurse: true
  when: ansible_facts["os_family"] == "Alpine"

# ── FreeBSD: pkgng ────────────────────────────────────────────────────────────

- name: Install alloy (FreeBSD)
  community.general.pkgng:
    name: alloy
    state: present
  when: ansible_facts["os_family"] == "FreeBSD"

- name: Fix alloy storage dir ownership (FreeBSD)
  ansible.builtin.file:
    path: /var/alloy
    state: directory
    owner: nobody
    group: nobody
    mode: '0755'
  when: ansible_facts["os_family"] == "FreeBSD"

# ── Docker socket access ─────────────────────────────────────────────────────

- name: Add alloy to docker group
  ansible.builtin.user:
    name: alloy
    groups: docker
    append: true
  when: "'docker_hosts' in group_names"
  notify: "Restart alloy ({{ ansible_facts['os_family'] }})"

# ── Config — all OS ───────────────────────────────────────────────────────────

- name: Set alloy config path fact
  ansible.builtin.set_fact:
    alloy_config_path: >-
      {{ '/usr/local/etc/alloy.flow'
         if ansible_facts['os_family'] == 'FreeBSD'
         else '/etc/alloy/config.alloy' }}

- name: Deploy alloy config
  ansible.builtin.template:
    src: alloy.config.alloy.j2
    dest: "{{ alloy_config_path }}"
    mode: '0644'
  notify: "Restart alloy ({{ ansible_facts['os_family'] }})"

# ── Service enable + start ────────────────────────────────────────────────────

- name: Enable and start alloy (Debian)
  ansible.builtin.service:
    name: alloy
    state: started
    enabled: true
  when: ansible_facts["os_family"] == "Debian"

- name: Enable and start alloy (Alpine)
  ansible.builtin.service:
    name: alloy
    state: started
    enabled: true
  when: ansible_facts["os_family"] == "Alpine"

- name: Enable alloy (FreeBSD)
  community.general.sysrc:
    name: alloy_enable
    value: "YES"
  when: ansible_facts["os_family"] == "FreeBSD"

- name: Start alloy (FreeBSD)
  ansible.builtin.service:
    name: alloy
    state: started
  when: ansible_facts["os_family"] == "FreeBSD"