---

#
# Tasks related to setting up Hydrogen
#

- name: Ensure Hydrogen paths exists
  file:
    path: "{{ item.path }}"
    state: directory
    mode: 0750
    owner: "{{ matrix_user_username }}"
    group: "{{ matrix_user_groupname }}"
  with_items:
    - { path: "{{ matrix_client_hydrogen_data_path }}", when: true }
    - { path: "{{ matrix_client_hydrogen_docker_src_files_path }}", when: "{{ matrix_client_hydrogen_container_image_self_build }}" }
  when: matrix_client_hydrogen_enabled|bool and item.when

- name: Ensure Hydrogen Docker image is pulled
  docker_image:
   name: "{{ matrix_client_hydrogen_docker_image }}"
   source: "{{ 'pull' if ansible_version.major > 2 or ansible_version.minor > 7 else omit }}"
   force_source: "{{ matrix_client_hydrogen_docker_image_force_pull if ansible_version.major > 2 or ansible_version.minor >= 8 else omit }}"
   force: "{{ omit if ansible_version.major > 2 or ansible_version.minor >= 8 else matrix_client_hydrogen_docker_image_force_pull }}"
  when: matrix_client_hydrogen_enabled|bool and not matrix_client_hydrogen_container_image_self_build

- name: Ensure Hydrogen repository is present on self-build
  git:
    repo: "{{ matrix_client_hydrogen_container_image_self_build_repo }}"
    dest: "{{ matrix_client_hydrogen_docker_src_files_path }}"
    version: "{{ matrix_client_hydrogen_docker_image.split(':')[1] }}"
    force: "yes"
  register: matrix_client_hydrogen_git_pull_results
  when: "matrix_client_hydrogen_enabled|bool and matrix_client_hydrogen_container_image_self_build|bool"

- name: Ensure Hydrogen configuration installed
  copy:
    content: "{{ matrix_client_hydrogen_configuration|to_nice_json }}"
    dest: "{{ matrix_client_hydrogen_docker_src_files_path }}/assets/config.json"
    mode: 0644
    owner: "{{ matrix_user_username }}"
    group: "{{ matrix_user_groupname }}"
  when: "matrix_client_hydrogen_enabled|bool and matrix_client_hydrogen_container_image_self_build|bool"

- name: Ensure Hydrogen additional config files installed
  template:
    src: "{{ item.src }}"
    dest: "{{ matrix_client_hydrogen_data_path }}/{{ item.name }}"
    mode: 0644
    owner: "{{ matrix_user_username }}"
    group: "{{ matrix_user_groupname }}"
  with_items:
    - {src: "{{ role_path }}/templates/nginx.conf.j2", name: "nginx.conf"}
  when: "matrix_client_hydrogen_enabled|bool and item.src is not none"

# This step MUST come after the steps to install the configuration files because the config files
# are currently only read at build time, not at run time like most other components in the playbook
- name: Ensure Hydrogen Docker image is built
  docker_image:
    name: "{{ matrix_client_hydrogen_docker_image }}"
    source: build
    force_source: "{{ matrix_client_hydrogen_git_pull_results.changed }}"
    build:
      dockerfile: Dockerfile
      path: "{{ matrix_client_hydrogen_docker_src_files_path }}"
      pull: yes
  when: "matrix_client_hydrogen_enabled|bool and matrix_client_hydrogen_container_image_self_build|bool"

- name: Ensure matrix-client-hydrogen.service installed
  template:
    src: "{{ role_path }}/templates/systemd/matrix-client-hydrogen.service.j2"
    dest: "{{ matrix_systemd_path }}/matrix-client-hydrogen.service"
    mode: 0644
  register: matrix_client_hydrogen_systemd_service_result
  when: matrix_client_hydrogen_enabled|bool

- name: Ensure systemd reloaded after matrix-client-hydrogen.service installation
  service:
    daemon_reload: yes
  when: "matrix_client_hydrogen_enabled and matrix_client_hydrogen_systemd_service_result.changed"

#
# Tasks related to getting rid of Hydrogen (if it was previously enabled)
#

- name: Check existence of matrix-client-hydrogen.service
  stat:
    path: "{{ matrix_systemd_path }}/matrix-client-hydrogen.service"
  register: matrix_client_hydrogen_service_stat
  when: "not matrix_client_hydrogen_enabled|bool"

- name: Ensure matrix-client-hydrogen is stopped
  service:
    name: matrix-client-hydrogen
    state: stopped
    daemon_reload: yes
  register: stopping_result
  when: "not matrix_client_hydrogen_enabled|bool and matrix_client_hydrogen_service_stat.stat.exists"

- name: Ensure matrix-client-hydrogen.service doesn't exist
  file:
    path: "{{ matrix_systemd_path }}/matrix-client-hydrogen.service"
    state: absent
  when: "not matrix_client_hydrogen_enabled|bool and matrix_client_hydrogen_service_stat.stat.exists"

- name: Ensure systemd reloaded after matrix-client-hydrogen.service removal
  service:
    daemon_reload: yes
  when: "not matrix_client_hydrogen_enabled|bool and matrix_client_hydrogen_service_stat.stat.exists"

- name: Ensure Hydrogen paths doesn't exist
  file:
    path: "{{ matrix_client_hydrogen_data_path }}"
    state: absent
  when: "not matrix_client_hydrogen_enabled|bool"

- name: Ensure Hydrogen Docker image doesn't exist
  docker_image:
    name: "{{ matrix_client_hydrogen_docker_image }}"
    state: absent
  when: "not matrix_client_hydrogen_enabled|bool"