---
- name: Show differences between repo and deployed compose files
  hosts: docker_hosts
  become: yes
  gather_facts: no
  
  tasks:
    - name: Set appdata path
      set_fact:
        appdata_path: "{{ docker_appdata | default('/home/docker/appdata') }}"
    
    - name: Find compose files for this host in repo
      delegate_to: localhost
      become: no
      find:
        paths: "{{ playbook_dir }}/../compose-files/{{ inventory_hostname }}"
        patterns: "docker-compose.yml,docker-compose.yaml"
        recurse: yes
      register: repo_compose_files
    
    - name: Compare each file
      shell: |
        if [ -f "{{ appdata_path }}/{{ item.path | dirname | basename }}/docker-compose.yml" ]; then
          diff -u "{{ appdata_path }}/{{ item.path | dirname | basename }}/docker-compose.yml" - < /dev/stdin || true
        else
          echo "NEW FILE - does not exist on host yet"
        fi
      args:
        stdin: "{{ lookup('file', item.path) }}"
      loop: "{{ repo_compose_files.files }}"
      loop_control:
        label: "{{ item.path | dirname | basename }}"
      register: diff_results
      changed_when: false
    
    - name: Show differences
      debug:
        msg: |
          === {{ item.item.path | dirname | basename }} ===
          {{ item.stdout if item.stdout else 'No differences' }}
      loop: "{{ diff_results.results }}"
      loop_control:
        label: "{{ item.item.path | dirname | basename }}"
      when: item.stdout | length > 0