---
# Tasks for the user role.
#
# Runs in the first (bootstrap) play, against the provider's bootstrap account
# ({{ bootstrap_user }}), and does the two things that must happen before
# anything else can: create the account this server is being prepared for
# ({{ user }}), and install the public keys that make it reachable. Every
# later task logs in as {{ user }} rather than as the bootstrap account, so
# without those keys the second play cannot connect at all.
#
# Authentication is key based only: no password is set, which leaves the
# account locked for password logins. The shell, group membership and the rest
# of the account's configuration belong to the wheel/zsh roles. Setting a
# shell here would fight the zsh role and change it back on every run, so this
# role deliberately does not touch it.

- name: Create the desired user
  ansible.builtin.user:
    name: "{{ user }}"
    create_home: true
    state: present

- name: Ensure the user's SSH directory exists
  ansible.builtin.file:
    path: "/home/{{ user }}/.ssh"
    state: directory
    owner: "{{ user }}"
    group: "{{ user }}"
    mode: "0700"

- name: Ensure authorized_keys file exists
  ansible.builtin.copy:
    content: ""
    dest: "/home/{{ user }}/.ssh/authorized_keys"
    force: false
    owner: "{{ user }}"
    group: "{{ user }}"
    mode: "0644"

# The second play logs in as {{ user }} with the private half of this key on
# the control node, so this entry is what makes that login possible. It is
# installed here, during the bootstrap play, rather than being left to depend
# on one of the named keys below happening to be the control node's own.
#
# lineinfile rather than ansible.builtin.authorized_key: the latter redirects
# to ansible.posix, whose 2.1.0 module imports a deprecated helper and emits a
# deprecation warning on every run. This is the same guarantee without it.
- name: Authorize the control node's key for the new user
  ansible.builtin.lineinfile:
    dest: "/home/{{ user }}/.ssh/authorized_keys"
    line: "{{ lookup('file', user_key ~ '.pub') | trim }}"
    create: true
    owner: "{{ user }}"
    group: "{{ user }}"
    mode: "0644"

- name: Check Terminus public key
  ansible.builtin.shell: "grep -c \"{{ terminus_key }}\" /home/{{ user }}/.ssh/authorized_keys || true"
  register: terminuskey_test
  changed_when: false

- name: Add Terminus public key
  ansible.builtin.lineinfile:
    dest: "/home/{{ user }}/.ssh/authorized_keys"
    line: "{{ terminus_key }}"
  when: terminuskey_test.stdout == "0"

- name: Check clair public key
  ansible.builtin.shell: "grep -c \"{{ clair_key }}\" /home/{{ user }}/.ssh/authorized_keys || true"
  register: clairkey_test
  changed_when: false

- name: Add clair public key
  ansible.builtin.lineinfile:
    dest: "/home/{{ user }}/.ssh/authorized_keys"
    line: "{{ clair_key }}"
  when: clairkey_test.stdout == "0"

- name: Check Anjin public key
  ansible.builtin.shell: "grep -c \"{{ anjin_key }}\" /home/{{ user }}/.ssh/authorized_keys || true"
  register: anjin_key_test
  changed_when: false

- name: Add Anjin public key
  ansible.builtin.lineinfile:
    dest: "/home/{{ user }}/.ssh/authorized_keys"
    line: "{{ anjin_key }}"
  when: anjin_key_test.stdout == "0"