[%
	# Iterates YAML config lists and translates them into strings suitable for the
	# cdr-exporter config file.
	#
	# @param argv.type			one of 'cdr' (default), 'events'
	# @param argv.admin_export_fields
	# @param argv.reseller_export_fields
	# @param argv.export_joins
	# @param argv.export_conditions
	# @return out.admin_fields
	# @return out.reseller_fields
	# @return out.joins
	# @return out.conditions
-%]
[% MACRO direction_provider_select(dict_table,data_table,dict_col,val_col,direction,provider,type) BLOCK -%]
(SELECT data.[%- val_col -%] FROM accounting.[%- data_table -%] AS data INNER JOIN accounting.cdr_direction AS dir ON data.direction_id = dir.id INNER JOIN accounting.cdr_provider AS prov ON data.provider_id = prov.id INNER JOIN accounting.[%- dict_table -%] AS dict ON data.[%- dict_col -%] = dict.id WHERE data.cdr_id = accounting.cdr.id AND dir.type = "[%- direction -%]" AND prov.type="[%- provider -%]" AND dict.type="[%- type -%]")
[%- END %]
[%
	out = { };

	# translate upper-case presets into their proper equivalents

	# presets that map directly into accounting.cdr.X columns

	X_cdr_id_list = [ 'call_code', 'call_id', 'call_status', 'call_type', 'destination_account_id', 'destination_carrier_cost', 'destination_carrier_free_time', 'destination_customer_cost', 'destination_customer_free_time', 'destination_domain', 'destination_domain_in', 'destination_external_contract_id', 'destination_external_subscriber_id', 'destination_provider_id', 'destination_reseller_cost', 'destination_reseller_free_time', 'destination_user', 'destination_user_dialed', 'destination_user_id', 'destination_user_in', 'duration', 'peer_auth_realm', 'peer_auth_user', 'rated_at', 'rating_status', 'source_account_id', 'source_carrier_cost', 'source_carrier_free_time', 'source_cli', 'source_clir', 'source_customer_cost', 'source_customer_free_time', 'source_domain', 'source_external_contract_id', 'source_external_subscriber_id', 'source_ip', 'source_provider_id', 'source_reseller_cost', 'source_reseller_free_time', 'source_user', 'source_user_id', 'update_time', 'type', 'reseller_id', 'old_status', 'new_status', 'source_lnp_prefix', 'destination_lnp_prefix' ];

	FOREACH X_num IN [ 0 .. 9 ];
		X_cdr_id_list.push("source_gpp" _ X_num, "destination_gpp" _ X_num);
	END;

	X_type = argv.type;
	IF X_type.length == 0;
		X_type = 'cdr';
	END;

	X_cdr_id_map = { };

	FOREACH X_col IN X_cdr_id_list;
		X_upc = X_col.upper;
		X_cdr_id_map.$X_upc = "accounting." _ X_type _ "." _ X_col;
	END;

	# other presets

	X_cdr_id_map.CDR_ID = "accounting.cdr.id";
	X_cdr_id_map.EVENT_ID = "accounting.events.id";

	X_cdr_id_map.SOURCE_SUBSCRIBER_ID = "source_voip_subscribers.id";
	X_cdr_id_map.DESTINATION_SUBSCRIBER_ID = "destination_voip_subscribers.id";
	X_cdr_id_map.INIT_TIME = "CONCAT(FROM_UNIXTIME(accounting.cdr.init_time), \".\", SUBSTRING_INDEX(accounting.cdr.init_time, \".\", -1))";
	X_cdr_id_map.START_TIME = "CONCAT(FROM_UNIXTIME(accounting.cdr.start_time), \".\", SUBSTRING_INDEX(accounting.cdr.start_time, \".\", -1))";
	X_cdr_id_map.END_TIME = "CONCAT(FROM_UNIXTIME(accounting.cdr.start_time + accounting.cdr.duration), \".\", SUBSTRING_INDEX(accounting.cdr.start_time + accounting.cdr.duration, \".\", -1))";
	X_cdr_id_map.SOURCE_CARRIER_ZONE = "COALESCE(source_carrier_bbz.zone, \"onnet\")";
	X_cdr_id_map.SOURCE_CARRIER_DETAIL = "COALESCE(source_carrier_bbz.detail, \"platform internal\")";
	X_cdr_id_map.SOURCE_CUSTOMER_ZONE = "source_customer_bbz.zone";
	X_cdr_id_map.SOURCE_CUSTOMER_DETAIL = "source_customer_bbz.detail";
	X_cdr_id_map.DESTINATION_CARRIER_ZONE = "destination_carrier_bbz.zone";
	X_cdr_id_map.DESTINATION_CUSTOMER_ZONE = "destination_customer_bbz.zone";
	X_cdr_id_map.DESTINATION_CARRIER_DETAIL = "destination_carrier_bbz.detail";
	X_cdr_id_map.DESTINATION_CUSTOMER_DETAIL = "destination_customer_bbz.detail";
	X_cdr_id_map.SOURCE_RESELLER_ZONE = "source_reseller_bbz.zone";
	X_cdr_id_map.SOURCE_RESELLER_DETAIL = "source_reseller_bbz.detail";
	X_cdr_id_map.DESTINATION_RESELLER_ZONE = "destination_reseller_bbz.zone";
	X_cdr_id_map.DESTINATION_RESELLER_DETAIL = "destination_reseller_bbz.detail";
	X_cdr_id_map.CONTRACT_EXTERNAL_ID = "billing.contracts.external_id";
	X_cdr_id_map.COMPANY = "billing.contacts.company";
	X_cdr_id_map.SUBSCRIBER_EXTERNAL_ID = "billing.voip_subscribers.external_id";
	X_cdr_id_map.PRIMARY_NUMBER = "(select username from provisioning.voip_dbaliases tmp where tmp.subscriber_id = provisioning.voip_subscribers.id order by is_primary, id limit 1)";
	X_cdr_id_map.OLD_PROFILE_NAME = "old_profile.name";
	X_cdr_id_map.NEW_PROFILE_NAME = "new_profile.name";
	X_cdr_id_map.TIMESTAMP = "from_unixtime(accounting.events.timestamp)";

	# translate the fields

	out.admin_fields = [ ];
	FOREACH X_f IN argv.admin_export_fields;
		# explicitly declared fields have highest precedence:
		IF X_cdr_id_map.exists(X_f);
			out.admin_fields.push("'" _ X_cdr_id_map.$X_f _ "'");

		# specify cash balance before/after fields like e.g. source_CuStOmEr_cash_balance_before in config.yml:
		ELSIF (matches = X_f.lower.match('^([a-z]+)_([a-z]+)_([a-z_]*cash_balance)_(before|after)$'));
			out.admin_fields.push("'" _ direction_provider_select("cdr_cash_balance","cdr_cash_balance_data","cash_balance_id","val_" _ matches.3,matches.0,matches.1,matches.2) _ "'");

		# specify time balance before/after fields like e.g. source_CuStOmEr_free_time_balance_after:
		ELSIF (matches = X_f.lower.match('^([a-z]+)_([a-z]+)_([a-z_]*time_balance)_(before|after)$'));
			out.admin_fields.push("'" _ direction_provider_select("cdr_time_balance","cdr_time_balance_data","time_balance_id","val_" _ matches.3,matches.0,matches.1,matches.2) _ "'");

		# specify new cdr relation fields like e.g. source_CuStOmEr_profile_package_id:
		# note: they cannot be used in conditions for now.
		ELSIF (matches = X_f.lower.match('^([a-z]+)_([a-z]+)_(profile_package_id|contract_balance_id)$'));
			out.admin_fields.push("'" _ direction_provider_select("cdr_relation","cdr_relation_data","relation_id","val",matches.0,matches.1,matches.2) _ "'");

		# lowest precendece: other cdr fields, fields joined on your own or 'calculated' (raw sql) fields ... :
		ELSE;
			out.admin_fields.push("'" _ X_f _ "'");
		END;
	END;

	out.reseller_fields = [ ];
	FOREACH X_f IN argv.reseller_export_fields;
		IF X_cdr_id_map.exists(X_f);
			out.reseller_fields.push("'" _ X_cdr_id_map.$X_f _ "'");

		ELSIF (matches = X_f.lower.match('^([a-z]+)_([a-z]+)_([a-z_]*cash_balance)_(before|after)$'));
			out.reseller_fields.push("'" _ direction_provider_select("cdr_cash_balance","cdr_cash_balance_data","cash_balance_id","val_" _ matches.3,matches.0,matches.1,matches.2) _ "'");

		ELSIF (matches = X_f.lower.match('^([a-z]+)_([a-z]+)_([a-z_]*time_balance)_(before|after)$'));
			out.reseller_fields.push("'" _ direction_provider_select("cdr_time_balance","cdr_time_balance_data","time_balance_id","val_" _ matches.3,matches.0,matches.1,matches.2) _ "'");

		ELSIF (matches = X_f.lower.match('^([a-z]+)_([a-z]+)_(profile_package_id|contract_balance_id)$'));
			out.reseller_fields.push("'" _ direction_provider_select("cdr_relation","cdr_relation_data","relation_id","val",matches.0,matches.1,matches.2) _ "'");

		ELSE;
			out.reseller_fields.push("'" _ X_f _ "'");
		END;
	END;

	# build joins and conditions lists

	out.joins = [ ];
	FOREACH X_f IN argv.export_joins;
		IF X_f.alias.length > 0;
			X_table_spec = X_f.table _ ' ' _ X_f.alias;
		ELSE;
			X_table_spec = X_f.table;
		END;

		out.joins.push("{ '" _ X_table_spec _ "' => { '" _ X_f.key_column _ "' => '" _ X_f.reference_column _ "' } }");
	END;

	out.conditions = [ ];
	FOREACH X_f IN argv.export_conditions;
		out.conditions.push("{ '" _ X_f.column _ "' => { '" _ X_f.operand _ "' => '" _ X_f.compare_value _ "' } }");
	END;

-%]