---
- name: Create directories
  ansible.builtin.file:
    path: "{{ item }}"
    state: directory
    mode: '0755'
  loop:
    - "{{ monitoring_base_dir }}"
    - "{{ monitoring_base_dir }}/prometheus"
    - "{{ monitoring_base_dir }}/alertmanager"
    - "{{ monitoring_base_dir }}/loki"
    - "{{ monitoring_base_dir }}/grafana/provisioning/datasources"
    - "{{ monitoring_base_dir }}/rules"

- name: Copy example alert/recording rules
  ansible.builtin.copy:
    src: "roles/monitoring_stack/files/rules/"
    dest: "{{ monitoring_base_dir }}/rules/"
    mode: '0644'

- name: Render Prometheus config
  ansible.builtin.template:
    src: templates/prometheus.yml.j2
    dest: "{{ monitoring_base_dir }}/prometheus/prometheus.yml"
    mode: '0644'
  notify: Restart monitoring stack

- name: Render Alertmanager config
  ansible.builtin.template:
    src: templates/alertmanager.yml.j2
    dest: "{{ monitoring_base_dir }}/alertmanager/alertmanager.yml"
    mode: '0640'
  notify: Restart monitoring stack

- name: Render Loki config
  ansible.builtin.template:
    src: templates/loki-config.yml.j2
    dest: "{{ monitoring_base_dir }}/loki/config.yml"
    mode: '0644'
  notify: Restart monitoring stack

- name: Render Grafana provisioning (datasources)
  ansible.builtin.template:
    src: templates/grafana-provisioning-datasources.yml.j2
    dest: "{{ monitoring_base_dir }}/grafana/provisioning/datasources/datasources.yml"
    mode: '0644'
  notify: Restart monitoring stack

- name: Render docker-compose.yml
  ansible.builtin.template:
    src: templates/docker-compose.yml.j2
    dest: "{{ monitoring_base_dir }}/docker-compose.yml"
    mode: '0644'
  notify: Restart monitoring stack

- name: Ensure Docker network exists
  community.docker.docker_network:
    name: "{{ monitoring_docker_network }}"
    state: present

- name: Launch/Update monitoring stack via Compose v2
  community.docker.docker_compose_v2:
    project_src: "{{ monitoring_base_dir }}"
    state: present

- name: Wait for Grafana to be reachable
  ansible.builtin.uri:
    url: http://localhost:3000/api/health
    status_code: 200
    validate_certs: false
    timeout: 30
    retries: 10
    delay: 3
    method: GET
    return_content: false
  register: gf_health
  until: gf_health is succeeded

- name: Show Grafana URL
  ansible.builtin.debug:
    msg: "Grafana is up: http://{{ ansible_host | default(inventory_hostname) }}:3000"

# Handlers
- name: Restart monitoring stack
  listen: Restart monitoring stack
  community.docker.docker_compose_v2:
    project_src: "{{ monitoring_base_dir }}"
    state: present
    pull: always