---
- name: Deploy docker-compose files to hosts
  hosts: docker_hosts
  become: yes
  gather_facts: no
  vars:
    restart_stacks: false
    stack_filter: ""  # Empty = all stacks, or specify stack name
  
  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: Filter stacks if specified
      set_fact:
        deploy_files: "{{ repo_compose_files.files | selectattr('path', 'search', stack_filter) | list }}"
      when: stack_filter != ""
    
    - name: Use all files if no filter
      set_fact:
        deploy_files: "{{ repo_compose_files.files }}"
      when: stack_filter == ""
    
    - name: Show files to deploy
      debug:
        msg: "Deploying {{ deploy_files | length }} compose files to {{ inventory_hostname }}"
    
    - name: Ensure stack directories exist
      file:
        path: "{{ appdata_path }}/{{ item.path | dirname | basename }}"
        state: directory
        mode: '0755'
      loop: "{{ deploy_files }}"
      loop_control:
        label: "{{ item.path | dirname | basename }}"
    
    - name: Deploy compose files
      copy:
        src: "{{ item.path }}"
        dest: "{{ appdata_path }}/{{ item.path | dirname | basename }}/docker-compose.yml"
        mode: '0644'
        backup: yes
      loop: "{{ deploy_files }}"
      loop_control:
        label: "{{ item.path | dirname | basename }}/docker-compose.yml"
      register: deployed_files
    
    - name: Restart changed stacks
      shell: |
        cd {{ appdata_path }}/{{ item.item.path | dirname | basename }}
        docker compose pull
        docker compose up -d
      loop: "{{ deployed_files.results }}"
      loop_control:
        label: "{{ item.item.path | dirname | basename }}"
      when:
        - restart_stacks | bool
        - item.changed
      register: restart_results
      ignore_errors: yes
    
    - name: Show restart results
      debug:
        msg: "Restarted: {{ item.item.item.path | dirname | basename }}"
      loop: "{{ restart_results.results | default([]) }}"
      loop_control:
        label: "{{ item.item.item.path | dirname | basename | default('N/A') }}"
      when:
        - restart_stacks | bool
        - item.changed | default(false)