---
- name: "Gather service facts"
  ansible.builtin.service_facts:

# ------------------ MariaDB Specific Tasks ------------------

- name: "Install MariaDB server"
  ansible.builtin.apt:
    name: mariadb-server
    state: present
    update_cache: yes
  when: db_engine == 'mariadb'

- name: "Ensure MariaDB service is running and enabled (when selected)"
  ansible.builtin.service:
    name: mariadb
    state: started
    enabled: yes
  when: db_engine == 'mariadb'

- name: "Ensure MariaDB service is stopped and disabled (when NOT selected)"
  ansible.builtin.service:
    name: mariadb
    state: stopped
    enabled: no
  when: 
    - db_engine != 'mariadb'
    - "'mariadb' in ansible_facts.services"

# ------------------ MySQL Specific Tasks ------------------

- name: "Install MySQL server"
  ansible.builtin.apt:
    name: mysql-server
    state: present
    update_cache: yes
  when: db_engine == 'mysql'

- name: "Ensure MySQL service is running and enabled (when selected)"
  ansible.builtin.service:
    name: mysql
    state: started
    enabled: yes
  when: db_engine == 'mysql'

- name: "Ensure MySQL service is stopped and disabled (when NOT selected)"
  ansible.builtin.service:
    name: mysql
    state: stopped
    enabled: no
  when:
    - db_engine != 'mysql'
    - "'mysql' in ansible_facts.services"

# ------------------ PostgreSQL Specific Tasks ------------------

- name: "Install PostgreSQL server and dependencies"
  ansible.builtin.apt:
    name:
      - postgresql
      - postgresql-contrib
      - python3-psycopg2
    state: present
    update_cache: yes
  when: db_engine == 'postgres'

- name: "Ensure PostgreSQL service is running and enabled (when selected)"
  ansible.builtin.service:
    name: postgresql
    state: started
    enabled: yes
  when: db_engine == 'postgres'

- name: "Ensure PostgreSQL service is stopped and disabled (when NOT selected)"
  ansible.builtin.service:
    name: postgresql
    state: stopped
    enabled: no
  when:
    - db_engine != 'postgres'
    - "'postgresql' in ansible_facts.services"

- name: "Create the global Lenverge PostgreSQL user"
  community.postgresql.postgresql_user:
    name: "{{ db_credentials.user }}"
    password: "{{ db_credentials.password }}"
    priv: "ALL"
    state: present
  become: yes
  become_user: postgres
  when: db_engine == 'postgres' and db_credentials is defined

# --- Common Tasks for MySQL/MariaDB ---

- name: "Install Python dependencies for MySQL/MariaDB management"
  ansible.builtin.apt:
    name: python3-pymysql
    state: present
  when: db_engine == 'mariadb' or db_engine == 'mysql'

- name: "Create the global Lenverge database user"
  community.mysql.mysql_user:
    name: "{{ db_credentials.user }}"
    password: "{{ db_credentials.password }}"
    priv: "*.*:ALL,GRANT"
    host: "%"
    state: present
    login_unix_socket: /var/run/mysqld/mysqld.sock
  when: (db_engine == 'mariadb' or db_engine == 'mysql') and db_credentials is defined