module Apartment::Database

def self.mysql_adapter(config)
  Adapters::MysqlAdapter.new config
end

def self.postgresql_adapter(config)
  Apartment.use_postgres_schemas ? 
    Adapters::PostgresqlSchemaAdapter.new(config, :schema_search_path => ActiveRecord::Base.connection.schema_search_path) :
    Adapters::PostgresqlAdapter.new(config)
end

def adapter
 @adapter ||= begin
  adapter_method = "#{config[:adapter]}_adapter"
 
  begin
      require "apartment/adapters/#{adapter_method}"
    rescue LoadError => e
      raise "The adapter `#{config[:adapter]}` is not yet supported"
    end
    unless respond_to?(adapter_method)
      raise AdapterNotFound, "database configuration specifies nonexistent #{config[:adapter]} adapter"
    end
  
    send(adapter_method, config)
  end
end

def config
  @config ||= Rails.configuration.database_configuration[Rails.env].symbolize_keys
end

def init
   process_excluded_models
 end

def reload!
  @adapter = nil
  @config = nil
end