---
# Minecraft server deployment: a Quadlet pod running the Java server
# (itzg/minecraft-server) and, when enabled, the Geyser bridge container
# (geysermc/geyser) so Bedrock clients can join. Everything runs rootless
# under the admin user. Containers share the pod's network namespace, so
# Geyser reaches the Java server at 127.0.0.1.

- name: Build the list of data directories
  ansible.builtin.set_fact:
    minecraft_data_dirs: >-
      {{ [minecraft_data_dir, minecraft_data_dir + '/data', minecraft_data_dir + '/backups']
         + ([minecraft_data_dir + '/geyser'] if enable_geyser | bool else []) }}

- name: Create the Minecraft data directory tree
  ansible.builtin.file:
    path: "{{ item }}"
    state: directory
    owner: "{{ admin_user }}"
    group: "{{ admin_user }}"
    mode: "0750"
  loop: "{{ minecraft_data_dirs }}"

- name: Restore SELinux context on the data directory
  ansible.builtin.command: restorecon -Rv {{ minecraft_data_dir }}
  changed_when: false

- name: Create the Quadlet systemd unit directory
  ansible.builtin.file:
    path: "/home/{{ admin_user }}/.config/containers/systemd"
    state: directory
    owner: "{{ admin_user }}"
    group: "{{ admin_user }}"
    mode: "0700"

- name: Deploy the Minecraft pod unit
  ansible.builtin.template:
    src: minecraft.pod.j2
    dest: "/home/{{ admin_user }}/.config/containers/systemd/minecraft.pod"
    owner: "{{ admin_user }}"
    group: "{{ admin_user }}"
    mode: "0644"

- name: Deploy the Minecraft Java server unit
  ansible.builtin.template:
    src: minecraft-server.container.j2
    dest: "/home/{{ admin_user }}/.config/containers/systemd/minecraft-server.container"
    owner: "{{ admin_user }}"
    group: "{{ admin_user }}"
    mode: "0644"

- name: Deploy the Geyser config file
  ansible.builtin.template:
    src: geyser-config.yml.j2
    dest: "{{ minecraft_data_dir }}/geyser/config.yml"
    owner: "{{ admin_user }}"
    group: "{{ admin_user }}"
    mode: "0640"
  when: enable_geyser | bool

- name: Deploy the Geyser bridge unit
  ansible.builtin.template:
    src: geyser.container.j2
    dest: "/home/{{ admin_user }}/.config/containers/systemd/geyser.container"
    owner: "{{ admin_user }}"
    group: "{{ admin_user }}"
    mode: "0644"
  when: enable_geyser | bool

- name: Build the list of images to pull
  ansible.builtin.set_fact:
    minecraft_images: "{{ [minecraft_image] + ([geyser_image] if enable_geyser | bool else []) }}"
  when: minecraft_prepull | bool

- name: Check if container images are already present
  ansible.builtin.command: machinectl shell {{ admin_user }}@ -- podman image exists {{ item }}
  loop: "{{ minecraft_images }}"
  register: images_exist
  changed_when: false
  failed_when: false
  when: minecraft_prepull | bool

- name: Pull missing container images
  ansible.builtin.command: machinectl shell {{ admin_user }}@ -- podman pull {{ item.item }}
  loop: "{{ images_exist.results }}"
  when:
    - minecraft_prepull | bool
    - item.rc != 0

- name: Build the list of user services to enable
  ansible.builtin.set_fact:
    minecraft_units: "{{ ['minecraft-pod.service', 'minecraft-server.service'] + (['geyser.service'] if enable_geyser | bool else []) }}"

- name: Reload the user systemd daemon
  ansible.builtin.command: machinectl shell {{ admin_user }}@ -- systemctl --user daemon-reload
  changed_when: false

- name: Enable and start the Minecraft services
  ansible.builtin.command: machinectl shell {{ admin_user }}@ -- systemctl --user enable --now {{ item }}
  loop: "{{ minecraft_units }}"
  register: mc_services
  changed_when: false