---

#
# Tasks related to setting up the mailer
#

- name: Ensure mailer base path exists
  file:
    path: "{{ item.path }}"
    state: directory
    mode: 0750
    owner: "{{ matrix_user_username }}"
    group: "{{ matrix_user_groupname }}"
  with_items:
    - {path: "{{ matrix_mailer_base_path }}", when: true}
    - {path: "{{ matrix_mailer_container_image_self_build_src_files_path }}", when: "{{ matrix_mailer_container_image_self_build }}"}
  when: "matrix_mailer_enabled|bool and item.when"

- name: Ensure mailer environment variables file created
  template:
    src: "{{ role_path }}/templates/env-mailer.j2"
    dest: "{{ matrix_mailer_base_path }}/env-mailer"
    mode: 0640
  when: matrix_mailer_enabled|bool

- name: Ensure exim-relay repository is present on self-build
  git:
    repo: "{{ matrix_mailer_container_image_self_build_repository_url }}"
    dest: "{{ matrix_mailer_container_image_self_build_src_files_path }}"
    version: "{{ matrix_mailer_container_image_self_build_version }}"
    force: "yes"
  become: true
  become_user: "{{ matrix_user_username }}"
  register: matrix_mailer_git_pull_results
  when: "matrix_mailer_enabled|bool and matrix_mailer_container_image_self_build|bool"

- name: Ensure exim-relay Docker image is built
  docker_image:
    name: "{{ matrix_mailer_docker_image }}"
    source: build
    force_source: "{{ matrix_mailer_git_pull_results.changed 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_mailer_git_pull_results.changed }}"
    build:
      dockerfile: Dockerfile
      path: "{{ matrix_mailer_container_image_self_build_src_files_path }}"
      pull: true
  when: "matrix_mailer_enabled|bool and matrix_mailer_container_image_self_build|bool"

- name: Ensure exim-relay image is pulled
  docker_image:
    name: "{{ matrix_mailer_docker_image }}"
    source: "{{ 'pull' if ansible_version.major > 2 or ansible_version.minor > 7 else omit }}"
    force_source: "{{ matrix_mailer_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_mailer_docker_image_force_pull }}"
  when: "matrix_mailer_enabled|bool and not matrix_mailer_container_image_self_build|bool"
  register: result
  retries: "{{ matrix_container_retries_count }}"
  delay: "{{ matrix_container_retries_delay }}"
  until: result is not failed

- name: Ensure matrix-mailer.service installed
  template:
    src: "{{ role_path }}/templates/systemd/matrix-mailer.service.j2"
    dest: "{{ matrix_systemd_path }}/matrix-mailer.service"
    mode: 0644
  register: matrix_mailer_systemd_service_result
  when: matrix_mailer_enabled|bool

- name: Ensure systemd reloaded after matrix-mailer.service installation
  service:
    daemon_reload: true
  when: "matrix_mailer_enabled|bool and matrix_mailer_systemd_service_result.changed"

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

- name: Check existence of matrix-mailer service
  stat:
    path: "{{ matrix_systemd_path }}/matrix-mailer.service"
  register: matrix_mailer_service_stat
  when: "not matrix_mailer_enabled|bool"

- name: Ensure matrix-mailer is stopped
  service:
    name: matrix-mailer
    state: stopped
    enabled: false
    daemon_reload: true
  register: stopping_result
  when: "not matrix_mailer_enabled|bool and matrix_mailer_service_stat.stat.exists"

- name: Ensure matrix-mailer.service doesn't exist
  file:
    path: "{{ matrix_systemd_path }}/matrix-mailer.service"
    state: absent
  when: "not matrix_mailer_enabled|bool and matrix_mailer_service_stat.stat.exists"

- name: Ensure systemd reloaded after matrix-mailer.service removal
  service:
    daemon_reload: true
  when: "not matrix_mailer_enabled|bool and matrix_mailer_service_stat.stat.exists"

- name: Ensure Matrix mailer environment variables path doesn't exist
  file:
    path: "{{ matrix_mailer_base_path }}"
    state: absent
  when: "not matrix_mailer_enabled|bool"

- name: Ensure mailer Docker image doesn't exist
  docker_image:
    name: "{{ matrix_mailer_docker_image }}"
    state: absent
  when: "not matrix_mailer_enabled|bool"