---
- name: Stop and disable Prometheus services
  block:
    - name: Stop and disable prometheus
      ansible.builtin.service:
        name: prometheus
        state: stopped
        enabled: no
      ignore_errors: yes

    - name: Stop and disable prometheus-node-exporter
      ansible.builtin.service:
        name: prometheus-node-exporter
        state: stopped
        enabled: no
      ignore_errors: yes

- name: Install Grafana Alloy
  block:
    - name: Create keyrings directory
      ansible.builtin.file:
        path: /etc/apt/keyrings
        state: directory
        mode: '0755'

    - name: Download Grafana GPG key
      ansible.builtin.get_url:
        url: https://apt.grafana.com/gpg.key
        dest: /etc/apt/keyrings/grafana.asc
        mode: '0644'
        force: yes

    - name: Add Grafana repository
      ansible.builtin.apt_repository:
        repo: "deb [signed-by=/etc/apt/keyrings/grafana.asc] https://apt.grafana.com stable main"
        state: present
        update_cache: yes
        filename: grafana

    - name: Install Alloy
      ansible.builtin.apt:
        name: alloy
        state: present
        update_cache: yes

    - name: Create Alloy configuration directory
      ansible.builtin.file:
        path: /etc/alloy
        state: directory
        mode: '0755'

    - name: Copy Alloy configuration
      template:
        src: "{{ playbook_dir }}/files/alloy.river"
        dest: /etc/alloy/config.river
        mode: '0644'
      notify: restart alloy

    - name: Add alloy user to systemd-journal and adm groups
      ansible.builtin.user:
        name: alloy
        groups: systemd-journal,adm
        append: yes
      notify: restart alloy

    - name: Copy Alloy systemd service file
      ansible.builtin.copy:
        src: "{{ playbook_dir }}/files/alloy.service"
        dest: /etc/systemd/system/alloy.service
        mode: '0644'
      notify:
        - reload systemd
        - restart alloy

    - name: Enable and start Alloy service
      ansible.builtin.systemd:
        name: alloy
        enabled: yes
        state: started
        daemon_reload: yes