--
--	FusionPBX
--	Version: MPL 1.1
--
--	The contents of this file are subject to the Mozilla Public License Version
--	1.1 (the "License"); you may not use this file except in compliance with
--	the License. You may obtain a copy of the License at
--	http://www.mozilla.org/MPL/
--
--	Software distributed under the License is distributed on an "AS IS" basis,
--	WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
--	for the specific language governing rights and limitations under the
--	License.
--
--	The Original Code is FusionPBX
--
--	The Initial Developer of the Original Code is
--	Mark J Crane <markjcrane@fusionpbx.com>
--	Copyright (C) 2010-2014
--	the Initial Developer. All Rights Reserved.
--
--	Contributor(s):
--	Luis Daniel Lucio Quiroz <dlucio@okay.com.mx>
--	Riccardo Granchi <riccardo.granchi@nems.it>
--
--	add this in Inbound Routes before transfer to use it: 
--	action set caller_id_name=${luarun cidlookup.lua ${uuid}}

--debug
	debug["sql"] = true;

--define the trim function
	require "resources.functions.trim"

--define the explode function
	require "resources.functions.explode"

--create the api object
	api = freeswitch.API();
	uuid = argv[1];
	if not uuid or uuid == "" then return end;
	caller = api:executeString("uuid_getvar " .. uuid .. " caller_id_number");
	callee = api:executeString("uuid_getvar " .. uuid .. " destination_number");

--clean local country prefix from caller (ex: +39 or 0039 in Italy)
	exitCode    = api:executeString("uuid_getvar " .. uuid .. " default_exitcode");
	countryCode = api:executeString("uuid_getvar " .. uuid .. " default_countrycode");

	if ((countryCode ~= nil) and (string.len(countryCode) > 0)) then
		
		countryPrefix = "+" .. countryCode;
		
		if (string.sub(caller, 1, string.len(countryPrefix)) == countryPrefix) then
			cleanCaller = string.sub(caller, string.len(countryPrefix)+1);
			freeswitch.consoleLog("NOTICE", "[cidlookup] ignoring local international prefix " .. countryPrefix .. ": " .. caller .. " ==> " .. cleanCaller .. "\n");
			caller = cleanCaller;
		else
			if ((exitCode ~= nil) and (string.len(exitCode) > 0)) then
				
				countryPrefix = exitCode .. countryCode;

				if (string.sub(caller, 1, string.len(countryPrefix)) == countryPrefix) then
					cleanCaller = string.sub(caller, string.len(countryPrefix)+1);
					freeswitch.consoleLog("NOTICE", "[cidlookup] ignoring local international prefix " .. countryPrefix .. ": " .. caller .. " ==> " .. cleanCaller .. "\n");
					caller = cleanCaller;
				end;
			end;
		end;		
	end;

--include config.lua
	require "resources.functions.config";

--check if the session is ready

		--connect to the database
			require "resources.functions.database_handle";
			dbh = database_handle('system');

			if (database["type"] == "mysql") then
				sql = "SELECT CONCAT(v_contacts.contact_name_given, ' ', v_contacts.contact_name_family,' (',v_contact_phones.phone_type,')') AS name FROM v_contacts ";
			else
				sql = "SELECT v_contacts.contact_name_given || ' ' || v_contacts.contact_name_family || ' (' || v_contact_phones.phone_type || ')' AS name FROM v_contacts ";
			end

			sql = sql .. "INNER JOIN v_contact_phones ON v_contact_phones.contact_uuid = v_contacts.contact_uuid ";
			sql = sql .. "INNER JOIN v_destinations ON v_destinations.domain_uuid = v_contacts.domain_uuid ";
			sql = sql .. "WHERE  v_contact_phones.phone_number = '"..caller.."' AND v_destinations.destination_number='"..callee.."'";

			if (debug["sql"]) then
				freeswitch.consoleLog("notice", "[cidlookup] "..sql.."\n");
			end
			status = dbh:query(sql, function(row)
				name = row.name;
			end);

			if (name == nil) then
				freeswitch.consoleLog("NOTICE", "[cidlookup] caller name from contacts db is nil\n");
			else
				freeswitch.consoleLog("NOTICE", "[cidlookup] caller name from contacts db: "..name.."\n");
			end

		--check if there is a record, if it doesnt, then use common cidlookup
			if ((name == nil) or  (string.len(name) == 0)) then
				name = api:executeString("cidlookup " .. caller);
			end
			
			freeswitch.consoleLog("NOTICE", "[cidlookup] uuid_setvar " .. uuid .. " caller_id_name " .. name);
			api:executeString("uuid_setvar " .. uuid .. " caller_id_name " .. name);

			freeswitch.consoleLog("NOTICE", "[cidlookup] uuid_setvar " .. uuid .. " effective_caller_id_name " .. name);
			api:executeString("uuid_setvar " .. uuid .. " effective_caller_id_name " .. name);