---
- name: Check if runner registration file exists
  ansible.builtin.stat:
    path: "{{ gitea_runner_data_dir }}/.runner"
  register: gitea_runner_file_stat

- name: Read runner registration file
  ansible.builtin.slurp:
    src: "{{ gitea_runner_data_dir }}/.runner"
  register: gitea_runner_file_content
  when: gitea_runner_file_stat.stat.exists | default(false) | bool

- name: Parse runner registration data
  ansible.builtin.set_fact:
    gitea_runner_reg: >
      {{ (gitea_runner_file_content.content | b64decode | from_json)
      if (gitea_runner_file_content is defined and gitea_runner_file_content.content is defined)
      else {} }}
  when: gitea_runner_file_stat.stat.exists | default(false) | bool

- name: Deregister runner from Gitea via API
  ansible.builtin.command: >
    curl -sf --connect-timeout 5 --max-time 10 -X DELETE
    -H "Authorization: token {{ gitea_runner_admin_token | default(registration_token) }}"
    "{{ gitea_url }}/api/v1/admin/actions/runners/{{ gitea_runner_reg.id }}"
  args:
    chdir: "{{ gitea_runner_data_dir }}"
  become: true
  become_user: "{{ gitea_runner_service_user }}"
  environment:
    XDG_RUNTIME_DIR: "/run/user/{{ gitea_runner_uid | default(0) }}"
    DBUS_SESSION_BUS_ADDRESS: "unix:path=/run/user/{{ gitea_runner_uid | default(0) }}/bus"
    DOCKER_HOST: "unix:///run/user/{{ gitea_runner_uid | default(0) }}/docker.sock"
  when:
    - gitea_runner_file_stat.stat.exists | default(false) | bool
    - not gitea_runner_skip_registration
    - gitea_runner_reg.id is defined
  register: gitea_runner_deregister_output
  changed_when: gitea_runner_deregister_output.rc == 0
  failed_when: false

- name: Warn if deregistration failed
  ansible.builtin.debug:
    msg: >-
      WARNING: Runner deregistration from Gitea failed (rc={{ gitea_runner_deregister_output.rc | default('N/A') }}).
      The runner entry may remain in Gitea's admin UI as offline.
      Use an admin token (gitea_runner_admin_token var) to enable automatic cleanup,
      or remove it manually from {{ gitea_url }}/-/admin/actions/runners
  when:
    - gitea_runner_file_stat.stat.exists | default(false) | bool
    - not gitea_runner_skip_registration
    - gitea_runner_deregister_output is defined
    - gitea_runner_deregister_output.rc | default(1) != 0

- name: Remove runner registration file
  ansible.builtin.file:
    path: "{{ gitea_runner_data_dir }}/.runner"
    state: absent
  when: gitea_runner_file_stat.stat.exists | default(false) | bool