## postgresql_cd::server::databases::db_df
# Module name: postgresql_cd
# Author: Arne Teuke (arne_teuke@confdroid.com.com)
# @summary define manages databases
# @see https://www.postgresql.org/docs/9.6/static/managing-databases.html
# @param [String] pl_db_name the name of the database to be created.
# @param [String] pl_owner_name the name of the owner for the database
#   (optional), if none specified, the  postgresql defaults will apply.
# @param [String] pl_db_action whether to create or drop the database.
#   'CREATE DATABASE' creates it, 'DROP DATABASE' drops it.
# @param [String] pl_db_extension
##############################################################################
define postgresql_cd::server::databases::db_df (

  Optional[String] $pl_db_name      = undef,
  Optional[String] $pl_owner_name   = undef,
  Optional[String] $pl_db_action    = undef,
  String $pl_db_extension           = 'pg_trgm',
) {
  $pl_manage_databases = $postgresql_cd::params::pl_manage_databases

  if $pl_manage_databases == true {
    # create databases

    if $pl_db_action == 'CREATE DATABASE' {
      exec { "create_database_${name}":
        command => template('postgresql_cd/server/databases/db_create_sql.erb'),
        user    => 'postgres',
        path    => ['/usr/bin','/bin'],
        cwd     => '/tmp',
        unless  => template('postgresql_cd/server/databases/unless_db_sql.erb'),
      }
    }

    # Drop databases

    if $pl_db_action == 'DROP DATABASE' {
      exec { "drop_database_${name}":
        command => template('postgresql_cd/server/databases/db_drop_sql.erb'),
        user    => 'postgres',
        path    => ['/usr/bin','/bin'],
        cwd     => '/tmp',
        onlyif  => template('postgresql_cd/server/databases/unless_drop_sql.erb'),
      }
    }
  }
}