---
- name: Create SNMP exporter directory
  ansible.builtin.file:
    path: /etc/snmp_exporter
    state: directory
    owner: monitoring
    group: monitoring
    mode: "0755"

- name: Check if SNMP exporter is installed
  ansible.builtin.stat:
    path: /usr/local/bin/snmp_exporter
  register: snmp_exporter_binary

- name: Download SNMP exporter
  ansible.builtin.get_url:
    url: "https://github.com/prometheus/snmp_exporter/releases/download/v{{ snmp_exporter_version }}/snmp_exporter-{{ snmp_exporter_version }}.linux-{{ go_arch }}.tar.gz"
    dest: "/tmp/snmp_exporter-{{ snmp_exporter_version }}.tar.gz"
    mode: "0644"
  when: not snmp_exporter_binary.stat.exists

- name: Extract SNMP exporter
  ansible.builtin.unarchive:
    src: "/tmp/snmp_exporter-{{ snmp_exporter_version }}.tar.gz"
    dest: /tmp
    remote_src: true
  when: not snmp_exporter_binary.stat.exists

- name: Install SNMP exporter binary
  ansible.builtin.copy:
    src: "/tmp/snmp_exporter-{{ snmp_exporter_version }}.linux-{{ go_arch }}/snmp_exporter"
    dest: /usr/local/bin/snmp_exporter
    mode: "0755"
    remote_src: true
  notify: Restart snmp_exporter
  when: not snmp_exporter_binary.stat.exists

- name: Install default SNMP exporter config
  ansible.builtin.copy:
    src: "/tmp/snmp_exporter-{{ snmp_exporter_version }}.linux-{{ go_arch }}/snmp.yml"
    dest: /etc/snmp_exporter/snmp.yml
    owner: monitoring
    group: monitoring
    mode: "0644"
    remote_src: true
  notify: Restart snmp_exporter
  when: not snmp_exporter_binary.stat.exists

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

- name: Enable and start SNMP exporter
  ansible.builtin.systemd:
    name: snmp_exporter
    enabled: true
    state: started
    daemon_reload: true

- name: Clean up downloaded files
  ansible.builtin.file:
    path: "{{ item }}"
    state: absent
  loop:
    - "/tmp/snmp_exporter-{{ snmp_exporter_version }}.tar.gz"
    - "/tmp/snmp_exporter-{{ snmp_exporter_version }}.linux-{{ go_arch }}"