---

#
# Generic tasks that we always want to happen, regardless
# if the user wants matrix-nginx-proxy or not.
#
# If the user would set up their own nginx proxy server,
# the config files from matrix-nginx-proxy can be reused.
#
# It doesn't hurt to put them in place, even if they turn out
# to be unnecessary.
#
- name: Ensure Matrix nginx-proxy paths exist
  file:
    path: "{{ item }}"
    state: directory
    mode: 0750
    owner: "{{ matrix_user_username }}"
    group: "{{ matrix_user_username }}"
  with_items:
    - "{{ matrix_nginx_proxy_base_path }}"
    - "{{ matrix_nginx_proxy_data_path }}"
    - "{{ matrix_nginx_proxy_confd_path }}"

- name: Ensure Matrix nginx-proxy configured (main config override)
  template:
    src: "{{ role_path }}/templates/nginx/nginx.conf.j2"
    dest: "{{ matrix_nginx_proxy_base_path }}/nginx.conf"
    mode: 0644
  when: "matrix_nginx_proxy_enabled"

- name: Ensure matrix-synapse-metrics-htpasswd is present (protecting /_synapse/metrics URI)
  template:
    src: "{{ role_path }}/templates/nginx/matrix-synapse-metrics-htpasswd.j2"
    dest: "{{ matrix_nginx_proxy_data_path }}/matrix-synapse-metrics-htpasswd"
    owner: "{{ matrix_user_username }}"
    group: "{{ matrix_user_username }}"
    mode: 0400
  when: "matrix_nginx_proxy_proxy_synapse_metrics_basic_auth_enabled and matrix_nginx_proxy_proxy_synapse_metrics"

- name: Ensure Matrix nginx-proxy configured (generic)
  template:
    src: "{{ role_path }}/templates/nginx/conf.d/nginx-http.conf.j2"
    dest: "{{ matrix_nginx_proxy_confd_path }}/nginx-http.conf"
    mode: 0644
  when: "matrix_nginx_proxy_enabled"

- name: Ensure Matrix nginx-proxy configuration for matrix domain exists
  template:
    src: "{{ role_path }}/templates/nginx/conf.d/matrix-synapse.conf.j2"
    dest: "{{ matrix_nginx_proxy_confd_path }}/matrix-synapse.conf"
    mode: 0644
  when: "matrix_nginx_proxy_proxy_matrix_enabled"

- name: Ensure Matrix nginx-proxy configuration for riot domain exists
  template:
    src: "{{ role_path }}/templates/nginx/conf.d/matrix-riot-web.conf.j2"
    dest: "{{ matrix_nginx_proxy_confd_path }}/matrix-riot-web.conf"
    mode: 0644
  when: "matrix_nginx_proxy_proxy_riot_enabled"

- name: Ensure Matrix nginx-proxy configuration for dimension domain exists
  template:
    src: "{{ role_path }}/templates/nginx/conf.d/matrix-dimension.conf.j2"
    dest: "{{ matrix_nginx_proxy_confd_path }}/matrix-dimension.conf"
    mode: 0644
  when: "matrix_nginx_proxy_proxy_dimension_enabled"

#
# Tasks related to setting up matrix-nginx-proxy
#
- name: Ensure nginx Docker image is pulled
  docker_image:
    name: "{{ matrix_nginx_proxy_docker_image }}"
  when: matrix_nginx_proxy_enabled

- name: Allow access to nginx proxy ports in firewalld
  firewalld:
    service: "{{ item }}"
    state: enabled
    immediate: yes
    permanent: yes
  with_items:
    - "http"
    - "https"
  when: "matrix_nginx_proxy_enabled and ansible_os_family == 'RedHat'"

- name: Ensure matrix-nginx-proxy.service installed
  template:
    src: "{{ role_path }}/templates/systemd/matrix-nginx-proxy.service.j2"
    dest: "/etc/systemd/system/matrix-nginx-proxy.service"
    mode: 0644
  register: matrix_nginx_proxy_systemd_service_result
  when: matrix_nginx_proxy_enabled

- name: Ensure systemd reloaded after matrix-nginx-proxy.service installation
  service:
    daemon_reload: yes
  when: "matrix_nginx_proxy_enabled and matrix_nginx_proxy_systemd_service_result.changed"


#
# Tasks related to getting rid of matrix-nginx-proxy (if it was previously enabled)
#

- name: Check existence of matrix-nginx-proxy service
  stat:
    path: "/etc/systemd/system/matrix-nginx-proxy.service"
  register: matrix_nginx_proxy_service_stat

- name: Ensure matrix-nginx-proxy is stopped
  service:
    name: matrix-nginx-proxy
    state: stopped
    daemon_reload: yes
  register: stopping_result
  when: "not matrix_nginx_proxy_enabled and matrix_nginx_proxy_service_stat.stat.exists"

- name: Ensure matrix-nginx-proxy.service doesn't exist
  file:
    path: "/etc/systemd/system/matrix-nginx-proxy.service"
    state: absent
  when: "not matrix_nginx_proxy_enabled and matrix_nginx_proxy_service_stat.stat.exists"

- name: Ensure systemd reloaded after matrix-nginx-proxy.service removal
  service:
    daemon_reload: yes
  when: "not matrix_nginx_proxy_enabled and matrix_nginx_proxy_service_stat.stat.exists"

- name: Ensure Matrix nginx-proxy configuration for matrix domain deleted
  file:
    path: "{{ matrix_nginx_proxy_confd_path }}/matrix-synapse.conf"
    state: absent
  when: "not matrix_nginx_proxy_proxy_matrix_enabled"

- name: Ensure Matrix nginx-proxy configuration for riot domain deleted
  file:
    path: "{{ matrix_nginx_proxy_confd_path }}/matrix-riot-web.conf"
    state: absent
  when: "not matrix_nginx_proxy_proxy_riot_enabled"

- name: Ensure Matrix nginx-proxy configuration for dimension domain deleted
  file:
    path: "{{ matrix_nginx_proxy_confd_path }}/matrix-dimension.conf"
    state: absent
  when: "not matrix_nginx_proxy_proxy_dimension_enabled"

- name: Ensure Matrix nginx-proxy configuration for main config override deleted
  file:
    path: "{{ matrix_nginx_proxy_base_path }}/nginx.conf"
    state: absent
  when: "not matrix_nginx_proxy_enabled"

- name: Ensure Matrix nginx-proxy htpasswd is deleted (protecting /_synapse/metrics URI)
  file:
    path: "{{ matrix_nginx_proxy_data_path }}/matrix-synapse-metrics-htpasswd"
    state: absent
  when: "not matrix_nginx_proxy_proxy_synapse_metrics_basic_auth_enabled or not matrix_nginx_proxy_proxy_synapse_metrics"