---
- name: Check the Caddyfile exists
  stat:
    path: "{{ caddyfile_path }}"
  register: menu_caddyfile

- name: Fail when Caddy is not where we expect it
  fail:
    msg: >-
      {{ caddyfile_path }} is missing. Deploy the caddy playbook (which owns the
      Caddy container and its config) before this one.
  when: not menu_caddyfile.stat.exists

# blockinfile replaces whatever sits between its markers, so changing `vhost`
# updates the snippet in place. The sibling nginx-menu role only appended a
# block when its exact text was absent, which cannot change a proxy target.
- name: Point Caddy at the app
  blockinfile:
    path: "{{ caddyfile_path }}"
    marker: "# {mark} ANSIBLE MANAGED: menu app ({{ site }})"
    block: "{{ caddy_snippet }}"
    create: no
  notify: Reload Caddy

- name: Remove the snippet the nginx-menu playbook wrote for this vhost
  # A different marker, written by a different role. Leaving it in place would
  # leave Caddy with two blocks for the same hostname.
  blockinfile:
    path: "{{ caddyfile_path }}"
    marker: "# {mark} Ansible managed Caddy snippet for {{ host }}"
    state: absent
  when: retire_nginx_snippet | bool
  notify: Reload Caddy

- name: Stop the old nginx container
  docker_container:
    name: "{{ legacy_container }}"
    state: stopped
  when: retire_nginx_container | bool