---
- name: Create Promtail directories
  file:
    path: "{{ item }}"
    state: directory
    mode: '0755'
  loop:
    - "{{ promtail_config_dir }}"
    - "{{ promtail_data_dir }}"
  become: yes

- name: Set proper permissions for Promtail data directory
  file:
    path: "{{ promtail_data_dir }}"
    state: directory
    owner: promtail
    group: promtail
    mode: '0755'
    recurse: yes
  become: yes

- name: Create positions file with correct permissions
  file:
    path: "{{ promtail_data_dir }}/positions.yaml"
    state: touch
    owner: promtail
    group: promtail
    mode: '0644'
  become: yes
  
- name: Add promtail user to adm group for system log access
  user:
    name: promtail
    groups: adm
    append: yes
  become: yes

- name: Download Promtail binary
  get_url:
    url: "https://github.com/grafana/loki/releases/download/v{{ loki_version }}/promtail-linux-amd64.zip"
    dest: /tmp/promtail-linux-amd64.zip
    mode: '0644'
    timeout: 60
  become: yes

- name: Install Promtail binary
  unarchive:
    src: /tmp/promtail-linux-amd64.zip
    dest: /usr/local/bin/
    remote_src: yes
    owner: root
    group: root
    mode: '0755'
  become: yes

- name: Create Promtail system user
  user:
    name: promtail
    system: yes
    shell: /usr/sbin/nologin
    create_home: no
  become: yes

- name: Deploy Promtail configuration
  template:
    src: promtail-config.yml.j2
    dest: "{{ promtail_config_dir }}/promtail-config.yml"
    mode: '0644'
  notify: restart promtail
  become: yes

- name: Deploy Promtail systemd service (as root)
  copy:
    content: |
      [Unit]
      Description=Promtail log collector
      Documentation=https://grafana.com/docs/loki/latest/clients/promtail/
      Wants=network-online.target
      After=network-online.target

      [Service]
      Type=simple
      User=root
      Group=root
      ExecStart=/usr/local/bin/promtail-linux-amd64 \
        -config.file={{ promtail_config_dir }}/promtail-config.yml
      ExecReload=/bin/kill -HUP $MAINPID
      KillMode=process
      Restart=on-failure
      RestartSec=5s

      [Install]
      WantedBy=multi-user.target
    dest: /etc/systemd/system/promtail.service
    mode: '0644'
  notify: restart promtail
  become: yes

- name: Start and enable Promtail service
  systemd:
    name: promtail
    state: started
    enabled: yes
    daemon_reload: yes
  become: yes

- name: Clean up temporary files
  file:
    path: /tmp/promtail-linux-amd64.zip
    state: absent
  become: yes