# Author: Yisc[NL]																#
# Lapper version needed: 7.0.4.10 or above													#
#																		#
# Cross-server chat V1.00	14-02-2018	-Initial version										#
# Cross-server chat V1.01	18-02-2018	-Fixed a bug that caused displaying empty messages when starting from scratch			#
# Cross-server chat V1.02	22-02-2018	-Fixed a bug that caused Lapper to throw messages about database being locked			#
#						-Changed GetStoredValue to GetStoredNum where possible to get numbers instead of values		#
#################################################################################################################################################

CatchEvent OnMSO( $userName, $text ) # Player event

	$idxOfFirtsSpace = indexOf( $text, " ");
	IF( $idxOfFirtsSpace == -1 ) THEN
	  $command = $text;
	  $argv = "";
	ELSE
	  $command = subStr( $text,0,$idxOfFirtsSpace );
	  $argv = trim( subStr( $text,$idxOfFirtsSpace ) );
	ENDIF

	SWITCH( $command )

		CASE "!chat":
			IF ( $argv != "" )
			THEN
			  send_chat_msg_direct ( $argv );
			ELSE
			  Chat ( $KeyFlags,$id );
			ENDIF
			BREAK;
	ENDSWITCH
EndCatchEvent

CatchEvent OnLapperStart()
	OnLapperStart_Initialise_chat();
EndCatchEvent

Sub OnLapperStart_Initialise_chat()
	### Declare global variables ###
	GlobalVar $cross_srv_chat_version;
	GlobalVar $chat_msg_old;
	GlobalVar $chat_msg_new;
	GlobalVar $chat_msg_max;
	GlobalVar $chat_msg_nbr;
	### End ###

	### Set version number ###
	$cross_srv_chat_version="V1.02";
	### End ###

	### Load stored values and give them a default setting if no stored value has been found ###
	$chat_msg_old = GetStoredNum( "CHAT_MSG_OLD" );
	IF ($chat_msg_old == "")
	THEN
	  $chat_msg_old = 0;
	  SetStoredValue( "CHAT_MSG_OLD" , $chat_msg_old );
	ENDIF

	$chat_msg_new = GetStoredNum( "CHAT_MSG_NEW" );
	IF ($chat_msg_new == "")
	THEN
	  $chat_msg_new = 0;
	  SetStoredValue( "CHAT_MSG_NEW" , $chat_msg_new );
	ENDIF

	$chat_msg_max = GetStoredNum( "CHAT_MSG_MAX" );
	IF ($chat_msg_max == "")
	THEN
	  $chat_msg_max = 7;
	  SetStoredValue( "CHAT_MSG_MAX" , $chat_msg_max );
	ENDIF

	$chat_msg_nbr = GetStoredNum( "CHAT_MSG_NBR" );
	IF ($chat_msg_nbr == "")
	THEN
	  $chat_msg_nbr = 0;
	  SetStoredValue( "CHAT_MSG_NBR" , $chat_msg_nbr );
	ENDIF
	### End ###
EndSub

Sub Chat( $KeyFlags,$id )
	### Set left/right and top/bottom coordinates ###
	$left_right_cross_srv_chat=15;
	$top_bottom_cross_srv_chat=40;
	### End ###

	### Draw buttons for background, title bar, refresh counter and close the screen ###
	openPrivButton( "cross_srv_chat_bg",$left_right_cross_srv_chat,$top_bottom_cross_srv_chat,120,97,5,-1,16,"" );
	openPrivButton( "cross_srv_chat_title",$left_right_cross_srv_chat+1,$top_bottom_cross_srv_chat+1,118,5,5,-1,32,"^7Cross-server chat - " . $cross_srv_chat_version );
	openPrivButton( "refresh_cross_srv_chat",$left_right_cross_srv_chat+1,$top_bottom_cross_srv_chat+1,5,5,5,15,0,"^3%cpt%",refresh_chat );
	openPrivButton( "cross_srv_chat_close",$left_right_cross_srv_chat+114,$top_bottom_cross_srv_chat+1,5,5,5,-1,0,"^3X",close_chat );
	### End ###

	### Retrieve current values for chat_msg_old, chat_msg_new and chat_msg_nbr ###
	$chat_msg_old = GetStoredNum( "CHAT_MSG_OLD" );
	$chat_msg_new = GetStoredNum( "CHAT_MSG_NEW" );
	$chat_msg_nbr = GetStoredNum( "CHAT_MSG_NBR" );
	### End ###

	### Set value for $display_message, set new value for $top_bottom_cross_srv_chat ###
	$display_message = $chat_msg_old;
	$top_bottom_cross_srv_chat=51;
	### End ###

	### Give CurrentPlayerVar "chat_message_old" a value, so it can be used when closing chat, while latest message(s) hasn't/haven't appeared yet ###
	SetCurrentPlayerVar( "chat_message_old",$chat_msg_old );
	### End ###

	### Start WHILE-loop used to display the actual chat messages ###
	WHILE( $display_message <= $chat_msg_new )
		### Retrieve chat message from database and split the message into an array, using the | as splitting value ###
		$message = SplitToArray(  GetStoredValue( "CHAT_MSG_" . $display_message ),"|" );
		### End ###
		
		IF ( $message[0] != "" )
		THEN
		  ### Draw buttons to display date, time and nickname of the chat message ###
		  openPrivButton( "cross_srv_chat_msg_date_".$display_message,$left_right_cross_srv_chat+1,$top_bottom_cross_srv_chat,13,5,5,-1,32,"^7".$message[0] );
		  openPrivButton( "cross_srv_chat_msg_time_".$display_message,$left_right_cross_srv_chat+14,$top_bottom_cross_srv_chat,15,5,5,-1,32,"^7".$message[1] );
		   openPrivButton( "cross_srv_chat_msg_nick_".$display_message,$left_right_cross_srv_chat+29,$top_bottom_cross_srv_chat,23,5,5,-1,32,"^7".$message[2] );
		  ### End ###
		
		  IF ( strlen ( $message[3] ) < 58 )
		  THEN
		    ### If the length of the message is below 58 characters, display the message and raise $top_bottom_cross_srv_chat by 5 ###
		    openPrivButton( "cross_srv_chat_msg_".$display_message,$left_right_cross_srv_chat+52,$top_bottom_cross_srv_chat,67,5,5,-1,32,"^7".$message[3] );
		    $top_bottom_cross_srv_chat = $top_bottom_cross_srv_chat + 5;
		    ### End ###
		  ELSE
		    ### If the length of the message is 58 or above, start at position 55 to look for a space,comma or dot, to spread the message over 2 lines ###
		    ### Space, comma or dot should be found between position 55 and 35, when found BREAK the WHILE-loop, if not found then lower position by 1 ###
		    $position = 55;
		    WHILE( $position >= 35 )
			IF ( subStr( $message[3], $position, 1 ) == " " || subStr( $message[3], $position, 1 ) == "," || subStr( $message[3], $position, 1 ) == "." )
			THEN
			  BREAK;
			ELSE
			  $position = $position - 1;
			ENDIF
		    ENDWHILE
		    ### End ###

		    ### determin the exact length of the message, to know where the last character is ###
		    $length = strlen ( $message[3] );
		    ### End ###

		    ### Draw a background for the message and 2 button to display the splitted messages in ###
		    openPrivButton( "cross_srv_chat_msg_bg_".$display_message,$left_right_cross_srv_chat+52,$top_bottom_cross_srv_chat,67,10,5,-1,32,"" );
		    openPrivButton( "cross_srv_chat_msg_a_".$display_message,$left_right_cross_srv_chat+52,$top_bottom_cross_srv_chat,67,5,5,-1,0,"^7".subStr( $message[3], 0, $position ) );
		    openPrivButton( "cross_srv_chat_msg_b_".$display_message,$left_right_cross_srv_chat+52,$top_bottom_cross_srv_chat+5,67,5,5,-1,0,"^7".subStr( $message[3], $position, $length ) );
		    ### End ###

		    ### Raise $top_bottom_cross_srv_chat by 10, so next message won't overlap previous one ###
		    $top_bottom_cross_srv_chat = $top_bottom_cross_srv_chat + 10;
		    ### End ###
		  ENDIF
		ENDIF

		### Raise $display_message by 1 ###
		$display_message = $display_message + 1;
		### End ###
	ENDWHILE
	### End ###

	### Reset value for $top_bottom_cross_srv_chat ###
	$top_bottom_cross_srv_chat=40;
	### End ###

	IF ( GetCurrentPlayerVar( "chat_message" ) == "" )
	THEN
	  openPrivTextButton( "cross_srv_chat_msg",$left_right_cross_srv_chat+1,$top_bottom_cross_srv_chat+86,118,5,5,32,"^3Type message,press ENTER / click OK","^3Click to type a short message (max. 72 char)",72,proces_chat_msg );
	ELSE
	  openPrivTextButton( "cross_srv_chat_msg",$left_right_cross_srv_chat+1,$top_bottom_cross_srv_chat+86,118,5,5,32,"^3Type message,press ENTER / click OK","^3" . GetCurrentPlayerVar( "chat_message" ),72,proces_chat_msg );
	ENDIF

	### Only display SEND button when CurrentPlayerVar "chat_message" isn't empty ###
	IF ( GetCurrentPlayerVar( "chat_message" ) != "" )
	THEN
	  openPrivButton( "cross_srv_chat_send",$left_right_cross_srv_chat+1,$top_bottom_cross_srv_chat+91,118,5,5,-1,32,"^2Send message",send_chat_msg );
	ENDIF
	### End ###
EndSub

Sub proces_chat_msg ( $chat_message_value,$text )
	### Collect message tgat has been entered by a user ###
	$chat_message=$text;
	SetCurrentPlayerVar( "chat_message",$chat_message );
	### End ###

	### Close the send button (in case no message has been entered, there would be nothing to send) and go back to Sub Chat ###
	closePrivButton( "cross_srv_chat_send" );
	Chat( $KeyFlags,$id );
	### End ###
EndSub

Sub send_chat_msg ( $KeyFlags,$id )
	### Close buttons of the previously displayed messages ###
	$display_message = $chat_msg_old;

	WHILE( $display_message <= $chat_msg_new )
		closePrivButton( "cross_srv_chat_msg_date_".$display_message );
		closePrivButton( "cross_srv_chat_msg_time_".$display_message );
		closePrivButton( "cross_srv_chat_msg_nick_".$display_message );
		closePrivButton( "cross_srv_chat_msg_".$display_message );

		closePrivButton( "cross_srv_chat_msg_bg_".$display_message );
		closePrivButton( "cross_srv_chat_msg_a_".$display_message );
		closePrivButton( "cross_srv_chat_msg_b_".$display_message );
		$display_message = $display_message + 1;
	ENDWHILE
	### End ###
	
	### Get current last chat number and raise that by 1 ###
	$chat_msg_nbr = GetStoredNum( "CHAT_MSG_NBR" );
	$chat_msg_nbr = $chat_msg_nbr + 1;
	### End ###

	### Get current time, date and the chat message and piece them together for storage using | as seperator ###
	$time = GetLapperVar( "longtime" );
	$date = GetLapperVar( "shortdate" );
	$nick = GetCurrentPlayerVar( "NickName" );
	$message = $date . "|" . $time . "|" . $nick . "|" . GetCurrentPlayerVar( "chat_message" );
	### End ###

	### Store chat message and new chat number ###
	SetStoredValue( "CHAT_MSG_" . $chat_msg_nbr , $message );
	SetStoredValue( "CHAT_MSG_NBR" , $chat_msg_nbr );
	$chat_msg_new = $chat_msg_nbr;
	SetStoredValue( "CHAT_MSG_NEW" , $chat_msg_new );
	### End ###

	### Calculate number of chat messages in database and raise that number by 1 ###
	$nbr_of_messages = ($chat_msg_new - $chat_msg_old) + 1;
	### End ###

	### Check if number of messages exceeds maximum number of messages and if so, go through WHILE-loop to delete old message ###
	IF ( $nbr_of_messages >= $chat_msg_max )
	THEN
	  WHILE( $nbr_of_messages > $chat_msg_max )
		DeleteStoredValue( "CHAT_MSG_" . $chat_msg_old );
		$chat_msg_old = $chat_msg_old + 1;
		SetStoredValue( "CHAT_MSG_OLD" , $chat_msg_old );

		$nbr_of_messages = ($chat_msg_new - $chat_msg_old) + 1;
	  ENDWHILE
	ENDIF
	### End ###

	### Empty PlayerVar containing chat message, close Send button, go back to Sub Chat ###
	SetCurrentPlayerVar( "chat_message","" );
	closePrivButton( "cross_srv_chat_send" );
	Chat( $KeyFlags,$id );
	### End ###
EndSub

Sub send_chat_msg_direct ( $argv )
	### Close buttons of the previously displayed messages ###
	$display_message = GetCurrentPlayerVar( "chat_message_old" );

	WHILE( $display_message <= $chat_msg_new )
		closePrivButton( "cross_srv_chat_msg_date_".$display_message );
		closePrivButton( "cross_srv_chat_msg_time_".$display_message );
		closePrivButton( "cross_srv_chat_msg_nick_".$display_message );
		closePrivButton( "cross_srv_chat_msg_".$display_message );

		closePrivButton( "cross_srv_chat_msg_bg_".$display_message );
		closePrivButton( "cross_srv_chat_msg_a_".$display_message );
		closePrivButton( "cross_srv_chat_msg_b_".$display_message );
		$display_message = $display_message + 1;
	ENDWHILE
	### End ###

	### Get current last chat number and raise that by 1 ###
	$chat_msg_nbr = GetStoredNum( "CHAT_MSG_NBR" );
	$chat_msg_nbr = $chat_msg_nbr + 1;
	### End ###

	### Get current time, date and the chat message and piece them together for storage using | as seperator ###
	$time = GetLapperVar( "longtime" );
	$date = GetLapperVar( "shortdate" );
	$nick = GetCurrentPlayerVar( "NickName" );
	$message = $date . "|" . $time . "|" . $nick . "|" . $argv;
	### End ###

	### Store chat message and new chat number ###
	SetStoredValue( "CHAT_MSG_" . $chat_msg_nbr , $message );
	SetStoredValue( "CHAT_MSG_NBR" , $chat_msg_nbr );
	$chat_msg_new = $chat_msg_nbr;
	SetStoredValue( "CHAT_MSG_NEW" , $chat_msg_new );
	### End ###

	### Calculate number of chat messages in database and raise that number by 1 ###
	$nbr_of_messages = ($chat_msg_new - $chat_msg_old) + 1;
	### End ###

	### Check if number of messages exceeds maximum number of messages and if so, go through WHILE-loop to delete old message ###
	IF ( $nbr_of_messages >= $chat_msg_max )
	THEN
	  WHILE( $nbr_of_messages > $chat_msg_max )
		DeleteStoredValue( "CHAT_MSG_" . $chat_msg_old );
		$chat_msg_old = $chat_msg_old + 1;
		SetStoredValue( "CHAT_MSG_OLD" , $chat_msg_old );

		$nbr_of_messages = ($chat_msg_new - $chat_msg_old) + 1;
	  ENDWHILE
	ENDIF
	### End ###

	### Go back to Sub Chat ###
	Chat( $KeyFlags,$id );
	### End
EndSub

Sub refresh_chat ( $KeyFlags,$id )
	### Close buttons of the previously displayed messages ###
	WHILE( $display_message <= $chat_msg_new )
		closePrivButton( "cross_srv_chat_msg_date_".$display_message );
		closePrivButton( "cross_srv_chat_msg_time_".$display_message );
		closePrivButton( "cross_srv_chat_msg_nick_".$display_message );
		closePrivButton( "cross_srv_chat_msg_".$display_message );

		closePrivButton( "cross_srv_chat_msg_bg_".$display_message );
		closePrivButton( "cross_srv_chat_msg_a_".$display_message );
		closePrivButton( "cross_srv_chat_msg_b_".$display_message );
		$display_message = $display_message + 1;
	ENDWHILE
	### End ###

	### Retrieve current values for chat_msg_old, chat_msg_new and chat_msg_nbr ###
	$chat_msg_old = GetStoredNum( "CHAT_MSG_OLD" );
	$chat_msg_new = GetStoredNum( "CHAT_MSG_NEW" );
	$chat_msg_nbr = GetStoredNum( "CHAT_MSG_NBR" );
	### End ###
	
	### Set value for $display_message, set new value for $top_bottom_cross_srv_chat ###
	$display_message = $chat_msg_old;
	$left_right_cross_srv_chat=15;
	$top_bottom_cross_srv_chat=40;
	### End ###

	### Give CurrentPlayerVar "chat_message_old" a value, so it can be used when closing chat, while latest message(s) hasn't/haven't appeared yet ###
	SetCurrentPlayerVar( "chat_message_old",$chat_msg_old );
	### End ###

	openPrivButton( "refresh_cross_srv_chat",$left_right_cross_srv_chat+1,$top_bottom_cross_srv_chat+1,5,5,5,15,0,"^3%cpt%",refresh_chat );

	$top_bottom_cross_srv_chat=51;

	### Start WHILE-loop used to display the actual chat messages ###
	WHILE( $display_message <= $chat_msg_new )
		### Retrieve chat message from database and split the message into an array, using the | as splitting value ###
		$message = SplitToArray(  GetStoredValue( "CHAT_MSG_" . $display_message ),"|" );
		### End ###
		
		IF ( $message[0] != "" )
		THEN
		  ### Draw buttons to display date, time and nickname of the chat message ###
		  openPrivButton( "cross_srv_chat_msg_date_".$display_message,$left_right_cross_srv_chat+1,$top_bottom_cross_srv_chat,13,5,5,-1,32,"^7".$message[0] );
		  openPrivButton( "cross_srv_chat_msg_time_".$display_message,$left_right_cross_srv_chat+14,$top_bottom_cross_srv_chat,15,5,5,-1,32,"^7".$message[1] );
		  openPrivButton( "cross_srv_chat_msg_nick_".$display_message,$left_right_cross_srv_chat+29,$top_bottom_cross_srv_chat,23,5,5,-1,32,"^7".$message[2] );
		  ### End ###
		
		  IF ( strlen ( $message[3] ) < 58 )
		  THEN
		    ### If the length of the message is below 58 characters, display the message and raise $top_bottom_cross_srv_chat by 5 ###
		    openPrivButton( "cross_srv_chat_msg_".$display_message,$left_right_cross_srv_chat+52,$top_bottom_cross_srv_chat,67,5,5,-1,32,"^7".$message[3] );
		    $top_bottom_cross_srv_chat = $top_bottom_cross_srv_chat + 5;
		    ### End ###
		  ELSE
		    ### If the length of the message is 58 or above, start at position 55 to look for a space,comma or dot, to spread the message over 2 lines ###
		    ### Space, comma or dot should be found between position 55 and 35, when found BREAK the WHILE-loop, if not found then lower position by 1 ###
		    $position = 55;
		    WHILE( $position >= 35 )
			IF ( subStr( $message[3], $position, 1 ) == " " || subStr( $message[3], $position, 1 ) == "," || subStr( $message[3], $position, 1 ) == "." )
			THEN
			  BREAK;
			ELSE
			  $position = $position - 1;
			ENDIF
		    ENDWHILE
		    ### End ###

		    ### determin the exact length of the message, to know where the last character is ###
		    $length = strlen ( $message[3] );
		    ### End ###

		    ### Draw a background for the message and 2 button to display the splitted messages in ###
		    openPrivButton( "cross_srv_chat_msg_bg_".$display_message,$left_right_cross_srv_chat+52,$top_bottom_cross_srv_chat,67,10,5,-1,32,"" );
		    openPrivButton( "cross_srv_chat_msg_a_".$display_message,$left_right_cross_srv_chat+52,$top_bottom_cross_srv_chat,67,5,5,-1,0,"^7".subStr( $message[3], 0, $position ) );
		    openPrivButton( "cross_srv_chat_msg_b_".$display_message,$left_right_cross_srv_chat+52,$top_bottom_cross_srv_chat+5,67,5,5,-1,0,"^7".subStr( $message[3], $position, $length ) );
		    ### End ###

		    ### Raise $top_bottom_cross_srv_chat by 10, so next message won't overlap previous one ###
		    $top_bottom_cross_srv_chat = $top_bottom_cross_srv_chat + 10;
		    ### End ###
		  ENDIF
		ENDIF

		### Raise $display_message by 1 ###
		$display_message = $display_message + 1;
		### End ###
	ENDWHILE
	### End ###
EndSub

Sub close_chat ( $KeyFlags,$id )
	closePrivButton( "cross_srv_chat_bg" );
	closePrivButton( "cross_srv_chat_title" );
	closePrivButton( "refresh_cross_srv_chat" );
	closePrivButton( "cross_srv_chat_close" );
	closePrivButton( "cross_srv_chat_msg" );
	closePrivButton( "cross_srv_chat_send" );

	$display_message = GetCurrentPlayerVar( "chat_message_old" );

	WHILE( $display_message <= $chat_msg_new )
		closePrivButton( "cross_srv_chat_msg_date_".$display_message );
		closePrivButton( "cross_srv_chat_msg_time_".$display_message );
		closePrivButton( "cross_srv_chat_msg_nick_".$display_message );
		closePrivButton( "cross_srv_chat_msg_".$display_message );

		closePrivButton( "cross_srv_chat_msg_bg_".$display_message );
		closePrivButton( "cross_srv_chat_msg_a_".$display_message );
		closePrivButton( "cross_srv_chat_msg_b_".$display_message );
		$display_message = $display_message + 1;
	ENDWHILE
EndSub