---
- name: Ensure work directory exists
  ansible.builtin.file:
    path: "{{ gitea_runner_data_dir }}"
    state: directory
    owner: "{{ gitea_runner_service_user }}"
    group: "{{ gitea_runner_service_user }}"
    mode: "0755"

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

- name: Remove stale runner registration file
  ansible.builtin.file:
    path: "{{ gitea_runner_data_dir }}/.runner"
    state: absent
  when:
    - gitea_runner_registered.stat.exists
    - gitea_runner_force_reregister | bool
  register: gitea_runner_registration_removed

- name: Register runner with Gitea
  ansible.builtin.command: >
    {{ gitea_runner_binary_path }} register
    --token {{ registration_token }}
    --name {{ gitea_runner_name }}
    --instance {{ gitea_url }}
    --labels {{ gitea_runner_labels }}
    --no-interactive
  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: not gitea_runner_registered.stat.exists or gitea_runner_force_reregister | bool
  register: gitea_runner_register_output
  changed_when: >-
    gitea_runner_register_output.rc == 0 and
    ('already exists' not in gitea_runner_register_output.stdout | default(''))
  timeout: 60

# Note: service start is handled by service.yml (included after register.yml
# in install_runner.yml). Starting here fails because the systemd unit file
# has not been created yet.

- name: Restart runner service after (re-)registration
  ansible.builtin.command: >
    runuser -u {{ gitea_runner_service_user }} --
    env XDG_RUNTIME_DIR=/run/user/{{ gitea_runner_uid }}
    DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/{{ gitea_runner_uid | default(0) }}/bus
    systemctl --user restart gitea-runner
  changed_when: true
  when:
    - gitea_runner_systemd_available.stat.exists
    - gitea_runner_docker_rootless_setup
    - gitea_runner_register_output is defined
    - gitea_runner_register_output.rc | default(1) == 0