---
- name: Add backports repositories
  apt_repository:
    repo: "{{ item }} http://deb.debian.org/debian buster-backports main contrib non-free"
  loop:
    - "deb"
    - "deb-src"
  when:
    - ansible_lsb.codename == 'buster'

- name: Ensure /var/www exists
  file:
    name: "/var/www"
    state: directory
    mode: 0755

- name: Clone re2o repo
  git:
    repo: "https://gitlab.federez.net/re2o/re2o.git"
    dest: "/var/www/re2o"
    version: "dev"
    force: true

- name: Template local re2o settings
  template:
    src: "{{ item }}.j2"
    dest: "/var/www/re2o/re2o/{{ item }}"
    mode: 0644
  loop:
    - settings_local.py
    - local_routers.py

# What follows is a hideous abomination.
# Blame freeradius-python3 on backports.

- name: try to install freeradius-python3 (this will fail on post-install)
  apt:
    name: freeradius-python3
    update_cache: true
  ignore_errors: true

- name: fix freeradius-python3 postinstall script
  template:
    src: freeradius-python3.postinst.j2
    dest: /var/lib/dpkg/info/freeradius-python3.postinst
    mode: 0644

- name: reinstall broken package (this might fail too, for different reasons)
  apt:
    name: freeradius-python3
    force: true
  ignore_errors: true

- name: Setup radius symlinks
  file:
    src: "/var/www/re2o/freeradius_utils/{{ item.local_prefix }}{{ item.filename }}"
    dest: "/etc/freeradius/3.0/{{ item.filename }}"
    state: link
    force: true
  loop:
    - local_prefix: ""
      filename: auth.py
    - local_prefix: freeradius3/
      filename: radiusd.conf
    - local_prefix: freeradius3/
      filename: mods-enabled/python
    - local_prefix: freeradius3/
      filename: mods-enabled/eap

- name: Configure freeradius
  template:
    src: "{{ item }}.j2"
    dest: "/etc/freeradius/3.0/{{ item }}"
    mode: 0640
    owner: freerad
  loop:
    - sites-enabled/default
    - sites-enabled/inner-tunnel

- name: Install Basic Clients/Proxy Files freeradius
  template:
    src: "{{ item }}.j2"
    dest: "/etc/freeradius/3.0/{{ item }}"
    mode: 0640
    owner: freerad
  loop:
    - clients.conf
    - proxy.conf
  when: "'aurore_vm' not in group_names"

- name: Install Clients FedeRez Radius-Aurore
  template:
    src: proxy-federez.conf.j2
    dest: /etc/freeradius/3.0/proxy.conf
    mode: 0640
    owner: freerad
  when: "'aurore_vm' in group_names"

- name: Install Proxy FedeRez Radius-Aurore
  template:
    src: clients-federez.conf.j2
    dest: /etc/freeradius/3.0/clients.conf
    mode: 0640
    owner: freerad
  when: "'aurore_vm' in group_names"

- name: Install radius requirements (except freeradius-python3)
  shell:
    cmd: "cat apt_requirements_radius.txt | grep -v freeradius-python3 | xargs apt-get -y install"
    chdir: /var/www/re2o/

- name: Install PyPi requirements for radius
  command: "pip3 install -r /var/www/re2o/pip_requirements.txt"

# End of hideousness (hopefully).

- name: Configure log rotation
  template:
    src: "freeradius-logrotate.j2"
    dest: "/etc/logrotate.d/freeradius"
    mode: 0644


# Database setup


- name: Install postgresql
  apt:
    name:
      - postgresql
      - postgresql-client

- name: Install postgresql ansible module requirement(s)
  pip:
    name: psycopg2

- name: Create read-only user
  community.general.postgresql_user:
    name: re2o_ro
    password: "{{ radius_pg_re2o_ro_password }}"
  become_user: postgres

- name: Create replication user
  community.general.postgresql_user:
    name: replication
    password: "{{ radius_pg_replication_password }}"
  become_user: postgres


- name: Nuking - Stop freeradius
  systemd:
    name: freeradius
    state: stopped
  when: nuke_radius|default(false)

- name: Nuking - Remove old subscription if it exists
  community.general.postgresql_subscription:
    name: "re2o_subscription_{{ inventory_hostname_short | replace('-','_') }}"
    db: re2o
    state: absent
  become_user: postgres
  when: nuke_radius|default(false)
  ignore_errors: true

- name: Nuking - Destroy old local DB if it exists
  community.general.postgresql_db:
    name: re2o
    state: absent
  become_user: postgres
  when: nuke_radius|default(false)

- name: Create local DB
  community.general.postgresql_db:
    name: re2o
    owner: replication
    state: present
    encoding: "UTF8"
    lc_collate: 'fr_FR.UTF-8'
    lc_ctype: 'fr_FR.UTF-8'
  become_user: postgres

- name: Dump radius re2o PostgreSQL database schema from master
  community.general.postgresql_db:
    name: re2o
    state: dump
    target: /tmp/re2o-schema.sql
    target_opts: '-s'
    login_host: 10.128.0.22
    login_user: replication
    login_password: "{{ radius_pg_replication_password }}"


- name: Restore DB
  tags:
    - restore
  community.general.postgresql_db:
    name: re2o
    state: restore
    target: /tmp/re2o-schema.sql
    target_opts: "-s"
    login_host: localhost
    login_user: replication
    login_password: "{{ radius_pg_replication_password }}"


- name: Grant select permissions on all tables to read-only user
  tags:
    - perms
  community.general.postgresql_privs:
    database: re2o
    privs: SELECT
    objs: ALL_IN_SCHEMA
    schema: public
    roles: re2o_ro
  become_user: postgres

- name: Grant usage permission on schema to read-only user
  tags:
    - perms
  community.general.postgresql_privs:
    database: re2o
    privs: USAGE
    objs: public
    type: schema
    roles: re2o_ro
  become_user: postgres

- name: Set default privileges in schema
  tags:
    - perms
  community.general.postgresql_privs:
    database: re2o
    privs: SELECT
    schema: public
    objs: TABLES
    type: default_privs
    roles: re2o_ro
  become_user: postgres


- name: Set up subscription to main database
  tags:
    - sub
  community.general.postgresql_subscription:
    name: "re2o_subscription_{{ inventory_hostname_short | replace('-','_') }}"
    connparams:
      host: re2o-db.adm.auro.re
      user: replication
      password: "{{ radius_pg_replication_password }}"
      dbname: re2o
    db: re2o
    publications:
      - re2o_pub
  become_user: postgres

- name: Install freeradius re2o with Python3.X
  template:
    src: python_re2o.j2
    dest: /etc/freeradius/3.0/mods-enabled/python
    mode: 0640
    owner: freerad

- name: Restart freeradius, ensure enabled
  systemd:
    name: freeradius
    enabled: true
    state: restarted
    daemon_reload: true