{% set smtp_monitoring_enabled = salt['pillar.get']('pmg:smtp_monitoring:enabled', True) %}
{% set blackbox_package = salt['pillar.get']('pmg:smtp_monitoring:blackbox:package', 'prometheus-blackbox-exporter') %}
{% set blackbox_service = salt['pillar.get']('pmg:smtp_monitoring:blackbox:service', 'prometheus-blackbox-exporter') %}
{% set smtp_ports = salt['pillar.get']('pmg:smtp_monitoring:ports', [25, 26]) %}
{% set smtp_log_window_seconds = salt['pillar.get']('pmg:smtp_monitoring:log_window_seconds', 300) %}

{% if smtp_monitoring_enabled %}
pmg-smtp-monitoring-packages:
  pkg.installed:
    - pkgs:
      - {{ blackbox_package }}
      - iproute2
      - jq

pmg-smtp-monitoring-metrics-dir:
  file.directory:
    - name: /var/lib/prometheus/node-exporter
    - user: root
    - group: root
    - mode: "0755"

pmg-smtp-monitoring-script:
  file.managed:
    - name: /usr/local/bin/pmg-smtp-metrics.sh
    - source: salt://pmg/files/pmg-smtp-metrics.sh.jinja
    - template: jinja
    - context:
        smtp_ports: {{ smtp_ports }}
        smtp_log_window_seconds: {{ smtp_log_window_seconds }}
    - user: root
    - group: root
    - mode: "0755"
    - require:
      - file: pmg-smtp-monitoring-metrics-dir

pmg-smtp-monitoring-service:
  file.managed:
    - name: /etc/systemd/system/pmg-smtp-metrics.service
    - source: salt://pmg/files/pmg-smtp-metrics.service.jinja
    - user: root
    - group: root
    - mode: "0644"

pmg-smtp-monitoring-timer:
  file.managed:
    - name: /etc/systemd/system/pmg-smtp-metrics.timer
    - source: salt://pmg/files/pmg-smtp-metrics.timer.jinja
    - user: root
    - group: root
    - mode: "0644"

pmg-smtp-monitoring-blackbox-config:
  file.managed:
    - name: /etc/prometheus/blackbox.yml
    - source: salt://pmg/files/blackbox.yml.jinja
    - template: jinja
    - context:
        smtp_ports: {{ smtp_ports }}
    - user: root
    - group: root
    - mode: "0644"
    - require:
      - pkg: pmg-smtp-monitoring-packages

pmg-smtp-monitoring-systemd-reload:
  cmd.run:
    - name: systemctl daemon-reload
    - onchanges:
      - file: pmg-smtp-monitoring-service
      - file: pmg-smtp-monitoring-timer

pmg-smtp-monitoring-blackbox-service:
  service.running:
    - name: {{ blackbox_service }}
    - enable: true
    - require:
      - pkg: pmg-smtp-monitoring-packages
    - watch:
      - file: pmg-smtp-monitoring-blackbox-config

pmg-smtp-monitoring-timer-running:
  service.running:
    - name: pmg-smtp-metrics.timer
    - enable: true
    - require:
      - cmd: pmg-smtp-monitoring-systemd-reload
      - file: pmg-smtp-monitoring-script

pmg-smtp-monitoring-run-once:
  cmd.run:
    - name: /usr/local/bin/pmg-smtp-metrics.sh
    - require:
      - file: pmg-smtp-monitoring-script
{% endif %}