---
# cv role — download and extract the CV release tarball into cv_content_dir.
# Caddy serves the directory directly; there is no daemon to manage.
#
# Idempotency: a sentinel file records the installed cv_version. The
# download/extract steps only run when the sentinel doesn't match cv_version.
#
# We use curl rather than ansible.builtin.get_url because the forge generic-
# packages endpoint returns 405 on HEAD requests, which get_url issues before
# downloading.

- name: Ensure cv home exists
  ansible.builtin.file:
    path: "{{ cv_home }}"
    state: directory
    mode: '0755'

- name: Read installed cv version sentinel
  ansible.builtin.slurp:
    src: "{{ cv_version_sentinel }}"
  register: cv_installed_raw
  failed_when: false
  changed_when: false

- name: Set installed cv version fact
  ansible.builtin.set_fact:
    cv_installed_version: >-
      {{ (cv_installed_raw.content | b64decode).strip()
         if (cv_installed_raw.content is defined) else '' }}

- name: Recreate cv content dir
  ansible.builtin.file:
    path: "{{ cv_content_dir }}"
    state: "{{ item }}"
    mode: '0755'
  loop:
    - absent
    - directory
  when: cv_installed_version != cv_version

- name: Download and extract cv release tarball
  ansible.builtin.shell:
    cmd: >-
      set -euo pipefail;
      curl -fsSL {{ cv_release_url | quote }} -o {{ cv_home }}/cv.tar.gz &&
      tar -xzf {{ cv_home }}/cv.tar.gz -C {{ cv_content_dir }} &&
      rm -f {{ cv_home }}/cv.tar.gz
    executable: /bin/bash
  when: cv_installed_version != cv_version
  changed_when: true

- name: Write cv version sentinel
  ansible.builtin.copy:
    content: "{{ cv_version }}\n"
    dest: "{{ cv_version_sentinel }}"
    mode: '0644'
  when: cv_installed_version != cv_version