---
# Compose-down one Django app+env. Called per item with loop_var app_item.
# No `down -v` — volumes stay. Checkout and secrets stay.

- name: "stop[{{ app_item.name }}/{{ app_item.env }}] locals"
  ansible.builtin.set_fact:
    _spec: "{{ app_catalog[app_item.name] }}"
    _src: "{{ apps_src_dir }}/{{ app_item.name }}_{{ app_item.env }}"
    _project: "{{ app_item.name }}_{{ app_item.env }}"

- name: "stop[{{ _project }}] checkout dir"
  ansible.builtin.stat:
    path: "{{ _src }}"
  register: _src_stat

- name: "stop[{{ _project }}] compose file"
  ansible.builtin.stat:
    path: "{{ _src }}/{{ _spec.compose_file }}"
  register: _compose_stat
  when: _src_stat.stat.exists

- name: "stop[{{ _project }}] env file"
  ansible.builtin.stat:
    path: "{{ _src }}/.env"
  register: _env_stat
  when: _src_stat.stat.exists

- name: "stop[{{ _project }}] use compose down"
  ansible.builtin.set_fact:
    _use_compose: "{{ _src_stat.stat.exists and _compose_stat is defined and _compose_stat.stat.exists }}"

- name: "stop[{{ _project }}] compose down"
  ansible.builtin.command:
    cmd: >-
      docker compose -f {{ _spec.compose_file }}
      {{ '--env-file .env' if (_env_stat is defined and _env_stat.stat.exists) else '' }}
      down
    chdir: "{{ _src }}"
  environment:
    COMPOSE_PROJECT_NAME: "{{ _project }}"
    WEB_PORT: "{{ app_item.port }}"
    COMPOSE_PROFILES: "{{ (app_item.compose_profiles | default([])) | join(',') }}"
  become: true
  become_user: "{{ admin_user }}"
  when: _use_compose | bool
  changed_when: true

- name: "stop[{{ _project }}] find leftover project containers"
  ansible.builtin.command:
    cmd: docker ps -aq --filter label=com.docker.compose.project={{ _project }}
  register: _leftovers
  changed_when: false
  become: true
  when: not (_use_compose | bool)

- name: "stop[{{ _project }}] remove leftover project containers"
  ansible.builtin.command:
    cmd: "docker rm -f {{ _leftovers.stdout_lines | join(' ') }}"
  become: true
  when:
    - not (_use_compose | bool)
    - _leftovers is defined
    - _leftovers.stdout_lines | length > 0
  changed_when: true

- name: "stop[{{ _project }}] nothing to stop (no checkout)"
  ansible.builtin.debug:
    msg: "no checkout at {{ _src }} and no containers for project {{ _project }}"
  when:
    - not (_use_compose | bool)
    - _leftovers is defined
    - _leftovers.stdout_lines | length == 0