---
- name: Check if Docker is installed
  command: docker --version
  register: docker_check
  ignore_errors: yes
  changed_when: false

- name: Install cAdvisor (only on Docker hosts)
  block:
    - name: Create cAdvisor directories
      file:
        path: "{{ item }}"
        state: directory
        mode: '0755'
      loop:
        - "{{ cadvisor_base_dir }}"
        - "{{ cadvisor_config_dir }}"
      become: yes

    - name: Check if port {{ cadvisor_port }} is available
      wait_for:
        host: localhost
        port: "{{ cadvisor_port }}"
        state: stopped
        timeout: 5
      ignore_errors: yes
      register: port_check
      become: no

    - name: Deploy cAdvisor docker-compose
      template:
        src: docker-compose.yml.j2
        dest: "{{ cadvisor_base_dir }}/docker-compose.yml"
        owner: root
        group: root
        mode: '0644'
      become: yes

    - name: Stop existing cAdvisor container
      community.docker.docker_compose_v2:
        project_src: "{{ cadvisor_base_dir }}"
        state: absent
      become: yes
      ignore_errors: yes

    - name: Run cAdvisor container
      community.docker.docker_compose_v2:
        project_src: "{{ cadvisor_base_dir }}"
        state: present
        recreate: always
      become: yes
      register: cadvisor_start

    - name: Wait for cAdvisor to start
      wait_for:
        host: localhost
        port: "{{ cadvisor_port }}"
        timeout: 30
        state: started
      become: no

    - name: Check cAdvisor container status
      shell: "docker ps -f name=cadvisor"
      register: container_info
      become: yes

    - name: Display container status
      debug:
        var: container_info.stdout

    - name: Get cAdvisor container logs if check failed
      shell: "docker logs cadvisor"
      register: cadvisor_logs
      become: yes
      when: container_info.rc != 0 or "'Up' not in container_info.stdout"

    - name: Display cAdvisor logs if container not running
      debug:
        var: cadvisor_logs.stdout
      when: cadvisor_logs is defined


  when: 
    - docker_check.rc == 0
    - cadvisor_enabled | default(true)