---
- name: prepare nextcloud system disk as LVM
  when: nextcloud_lvm.system is defined
  vars:
    lvm_volume:
      vg: "{{ nextcloud_lvm.system.vg }}"
      lv: "{{ nextcloud_lvm.system.lv }}"
      size: "{{ nextcloud_lvm.system.size }}"
      fs: "{{ nextcloud_lvm.system.fs }}"
      dest: /srv/nextcloud
  include_role:
    name: storage/lvm/volume

- name: prepare nextcloud data disk as LVM
  when: nextcloud_lvm.data is defined
  vars:
    lvm_volume:
      vg: "{{ nextcloud_lvm.data.vg }}"
      lv: "{{ nextcloud_lvm.data.lv }}"
      size: "{{ nextcloud_lvm.data.size }}"
      fs: "{{ nextcloud_lvm.data.fs }}"
      dest: /srv/ncdata
  include_role:
    name: storage/lvm/volume

- name: create nextcloud config directory
  file:
    path: /srv/nextcloud/config/
    state: directory

- name: install nextcloud fpm config snippet
  template:
    src: nextcloud-fpm.conf.j2
    dest: /srv/nextcloud/config/nextcloud-fpm.conf


- name: create docker build-context for patched nextcloud image
  file:
    path: /srv/nextcloud/docker/
    state: directory

- name: install Dockerfile for patched nextcloud image
  template:
    src: nextcloud-Dockerfile.j2
    dest: /srv/nextcloud/docker/Dockerfile
  register: nextcloud_dockerfile

- name: build patched nextcloud image
  docker_image:
    state: present
    name: nextcloud
    tag: "{{ inventory_hostname }}"
    source: build
    build:
      path: /srv/nextcloud/docker/
      pull: no
    force_source: "{{ nextcloud_dockerfile.changed }}"

### TODO: set mysql variables:
###   <snip>
###   [mysqld]
###   transaction_isolation = READ-COMMITTED
###   binlog_format = ROW
###   </snip>

- name: create nextcloud database
  mysql_db:
    login_user: root
    login_unix_socket: /var/run/mysqld/mysqld.sock
    db: "{{ nextcloud_db.db }}"
    encoding: utf8mb4
    collation: utf8mb4_general_ci
    state: present

- name: create nextcloud database user
  mysql_user:
    login_user: root
    login_unix_socket: /var/run/mysqld/mysqld.sock
    name: "{{ nextcloud_db.user }}"
    password: "{{ nextcloud_db.password }}"
    priv: "{{ nextcloud_db.db }}.*:SELECT,INSERT,UPDATE,DELETE,CREATE,DROP,INDEX,ALTER,CREATE TEMPORARY TABLES"
    state: present


## to purge exisiting installation run the following commands (!!! will delete all data and the DB !!!):
#
# systemctl disable nextcloud-cron.timer
# systemctl stop nextcloud-cron.timer
# systemctl disable nextcloud-rescan.timer
# systemctl stop nextcloud-rescan.timer
# systemctl disable nextcloud.service
# systemctl stop nextcloud.service
# docker rm nextcloud.service
# rm -rf /srv/nextcloud/config/nextcloud
# rm -rf /srv/ncdata/nextcloud
# rm -rf /srv/nextcloud/www
# echo "drop database nextcloud;" | mysql --defaults-extra-file=/etc/mysql/debian.cnf
#
- name: check if nextcloud is already configured
  stat:
    path: /srv/nextcloud/config/nextcloud/config.php
  register: nextcloud_config_file

- name: running nextcloud installer
  when: not nextcloud_config_file.stat.exists
  docker_container:
    name: nextcloud.installer
    image: "nextcloud:{{ inventory_hostname }}"
    ## For some reasons a newly created database schema is not up to date with the recommended settings...
    ## so we will run the migrations right away. If in future this is not needed anymore use '/bin/true' here.
    command: 'su -p www-data -s /bin/sh -c "php /var/www/html/occ db:convert-filecache-bigint"'
    network_mode: host
    detach: no
    auto_remove: yes
    volumes:
      - /srv/nextcloud/www:/var/www/html
      - /srv/nextcloud/config/nextcloud-fpm.conf:/usr/local/etc/php-fpm.d/zzzzz.conf
      - /srv/nextcloud/config/nextcloud:/var/www/html/config
      - /srv/ncdata/nextcloud:/var/www/html/data
      - /srv/smbdata/share:/srv/external/share
    env:
      NEXTCLOUD_UPDATE: '1'
      NEXTCLOUD_TRUSTED_DOMAINS: "{{ nextcloud_hostnames | join(' ') }}"
      MYSQL_DATABASE: "{{ nextcloud_db.db }}"
      MYSQL_HOST: "127.0.0.1:3306"
      MYSQL_USER: "{{ nextcloud_db.user }}"
      MYSQL_PASSWORD: "{{ nextcloud_db.password }}"
      NEXTCLOUD_ADMIN_USER: "{{ nextcloud_admin.username }}"
      NEXTCLOUD_ADMIN_PASSWORD: "will-be-changed-later"

- name: configure nextcloud upload file size limit
  loop:
    - upload_max_filesize
    - post_max_size
  lineinfile:
    path: /srv/nextcloud/www/.user.ini
    regexp: '^{{ item }}='
    line: '{{ item }}={{ nextcloud_max_upload_size }}'

- name: configure nextcloud memory limit
  lineinfile:
    path: /srv/nextcloud/www/.user.ini
    regexp: '^memory_limit='
    line: 'memory_limit={{ nextcloud_memory_limit }}'

- name: install nextcloud service unit
  template:
    src: nextcloud.service.j2
    dest: /etc/systemd/system/nextcloud.service
  register: nextcloud_service

- name: make sure nextcloud is started and enabled
  systemd:
    name: nextcloud.service
    state: "{% if nextcloud_service.changed %}restarted{% else %}started{% endif %}"
    enabled: yes
    daemon_reload: yes

- name: basic nextcloud config
  import_tasks: nextcloud-config.yml

- name: install nextcloud systemd units
  loop:
    - cron.service
    - cron.timer
    - rescan.service
    - rescan.timer
  template:
    src: "nextcloud-{{ item }}.j2"
    dest: "/etc/systemd/system/nextcloud-{{ item }}"

- name: make sure nextcloud systemd timer are started and enabled
  loop:
    - cron
    - rescan
  systemd:
    name: "nextcloud-{{ item }}.timer"
    state: started
    enabled: yes
    daemon_reload: yes