---
- block:
  - import_tasks: "{{ role_path }}/../matrix-postgres/tasks/util/detect_existing_postgres_version.yml"

  - name: Fail if detected Postgres version is unsupported
    fail:
      msg: "You cannot use borg backup with such an old version ({{ matrix_postgres_detected_version }}) of Postgres. Consider upgrading - link to docs for upgrading Postgres: docs/maintenance-postgres.md#upgrading-postgresql"
    when: "matrix_postgres_detected_version not in matrix_backup_borg_supported_postgres_versions"

  - name: Set the correct borg backup version to use
    set_fact:
      matrix_backup_borg_version: "{{ matrix_postgres_detected_version }}"
  when: matrix_backup_borg_postgresql_enabled|bool and matrix_backup_borg_version == ''

- name: Ensure borg paths exist
  file:
    path: "{{ item.path }}"
    state: directory
    mode: 0750
    owner: "{{ matrix_user_username }}"
    group: "{{ matrix_user_groupname }}"
  with_items:
    - {path: "{{ matrix_backup_borg_config_path }}", when: true}
    - {path: "{{ matrix_backup_borg_docker_src_files_path }}", when: true}
  when: "item.when|bool"

- name: Ensure borgmatic config is created
  copy:
    content: "{{ matrix_backup_borg_configuration|to_nice_yaml(indent=2, width=999999) }}"
    dest: "{{ matrix_backup_borg_config_path }}/config.yaml"
    owner: "{{ matrix_user_username }}"
    group: "{{ matrix_user_groupname }}"
    mode: 0640

- name: Ensure borg passwd is created
  template:
    src: "{{ role_path }}/templates/passwd.j2"
    dest: "{{ matrix_backup_borg_config_path }}/passwd"
    owner: "{{ matrix_user_username }}"
    group: "{{ matrix_user_groupname }}"
    mode: 0640

- name: Ensure borg ssh key is created
  template:
    src: "{{ role_path }}/templates/sshkey.j2"
    dest: "{{ matrix_backup_borg_config_path }}/sshkey"
    owner: "{{ matrix_user_username }}"
    group: "{{ matrix_user_groupname }}"
    mode: 0600

- name: Ensure borg image is pulled
  docker_image:
    name: "{{ matrix_backup_borg_docker_image }}"
    source: "{{ 'pull' if ansible_version.major > 2 or ansible_version.minor > 7 else omit }}"
    force_source: "{{ matrix_backup_borg_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_backup_borg_docker_image_force_pull }}"
  when: "not matrix_backup_borg_container_image_self_build|bool"
  register: result
  retries: "{{ matrix_container_retries_count }}"
  delay: "{{ matrix_container_retries_delay }}"
  until: result is not failed

- name: Ensure borg repository is present on self-build
  git:
    repo: "{{ matrix_backup_borg_docker_repo }}"
    dest: "{{ matrix_backup_borg_docker_src_files_path }}"
    force: "yes"
  become: true
  become_user: "{{ matrix_user_username }}"
  register: matrix_backup_borg_git_pull_results
  when: "matrix_backup_borg_container_image_self_build|bool"

- name: Ensure borg image is built
  docker_image:
    name: "{{ matrix_backup_borg_docker_image }}"
    source: build
    force_source: "{{ matrix_backup_borg_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_backup_borg_docker_src_files_path }}"
      pull: true
  when: "matrix_backup_borg_container_image_self_build|bool"

- name: Ensure matrix-backup-borg.service installed
  template:
    src: "{{ role_path }}/templates/systemd/matrix-backup-borg.service.j2"
    dest: "{{ matrix_systemd_path }}/matrix-backup-borg.service"
    mode: 0644
  register: matrix_backup_borg_systemd_service_result

- name: Ensure matrix-backup-borg.timer installed
  template:
    src: "{{ role_path }}/templates/systemd/matrix-backup-borg.timer.j2"
    dest: "{{ matrix_systemd_path }}/matrix-backup-borg.timer"
    mode: 0644
  register: matrix_backup_borg_systemd_timer_result

- name: Ensure systemd reloaded after matrix-backup-borg.service installation
  service:
    daemon_reload: true
  when: "matrix_backup_borg_systemd_service_result.changed|bool"

- name: Ensure matrix-backup-borg.service enabled
  service:
    enabled: true
    name: matrix-backup-borg.service

- name: Ensure matrix-backup-borg.timer enabled
  service:
    enabled: true
    name: matrix-backup-borg.timer
