- name: determine host info
  set_fact:
    host_name: "{{ actual_hostname | d(inventory_hostname) }}"
    host_tld: "{%- if branch is defined -%}{{ branch }}.{%- endif -%}{{ tld if (use_external_tld | d(false) == true) else int_tld }}"
    host_tls: "{{ use_tls | d(true) }}"
    host_protocol: "{{ 'https' if (use_tls | d(true)) else 'http' }}"
    host_metrics: "{{ services.prometheus is defined and (use_metrics | d(true) == true) }}"
    host_mail: "{{ mail_server.mta_hostname is defined and (use_mail | d(true) == true) }}"
    host_backups: "{{ services.backup is defined and (use_backups | d(true) == true) }}"


- name: determine host fqdn and uri
  set_fact:
    host_fqdn: "{{ host_name ~ '.' ~ host_tld }}"
    host_url: "{{ host_protocol }}://{{ host_name ~ '.' ~ host_tld }}"


- name: define ansible_host if it is missing
  set_fact:
    ansible_host: "{{ host_fqdn }}"
  when: ansible_host is not defined


- name: select a cluster node
  include_tasks: tasks/select_node.yml
  when: "'containers' in group_names"


- name: set hardware information
  set_fact:
    hardware: "{{ default_container_hardware | combine(role_hardware[host_primary_role] | d({})) |
                  combine((container_hardware if 'containers' in group_names else host_hardware) | d({})) }}"


- name: clamp hardware cores to max node number
  set_fact:
    hardware: "{{ hardware | combine({'cores': ([hardware.cores, hostvars[selected_node]['max_cores'] | d(hardware.cores)] | min)}) }}"
  when: "not ('containers' in group_names) and (selected_node is defined) and (hostvars[selected_node]['max_cores'] is defined)"


- block:
    - name: validate database parameters
      fail:
        msg: some database parameters are not defined or invalid
      when: (database.name is not string) or
            (database.user is defined and database.user is not string) or
            (database.pass is defined and database.pass is not string) or
            (database.host is defined and database.host is not string) or
            (database.self_hosted is defined and database.self_hosted is not boolean)

    - name: set database information
      set_fact:
        database_name: "{{ database.name | mandatory }}"
        database_user: "{{ database.user | d(database.name) }}"
        database_pass: "{{ database.pass }}"
        database_host: "{{ '127.0.0.1' if (database.self_hosted | d(false) == true) or (services.db is not defined) else
                           (services.db.address | d(hostvars[services.db.hostname]['ansible_host'])) }}"
        database_hostname: "{{ inventory_hostname if (database.self_hosted | d(false) == true) or (services.db is not defined) else
                               services.db.hostname }}"
        database_self_hosted: "{{ (database.self_hosted | d(false) == true) or (services.db is not defined) }}"
  when: database is mapping