# IdealIRC channel settings v1.0

# All of the maps below are indexed by a channel name.

# Map of channel settings dialog handles.
global chansethndl;

# Map of booleans if the instance supports these.
global hasInvites, hasExceptions;

# Map of current channel settings. Limit, Key and currentTopic might not be set.
global chanmodes, modeLimit, modeKey, currentTopic;

# Map of what's done receiving from the server.
global topicDone, modesDone, bansDone, invitesDone, exceptionsDone;

# Map of which channels we're currently receiving for.
global inProgress;

########################################################################

# Date/time format to use in ban/invite/except list. See hook load() for definition.
global DateTimeFormat;

hook load()
{
	# Again, the key is always a channel name, for each one of the maps below.
	chansethndl = map();
	hasInvites = map();
	hasExceptions = map();
	chanmodes = map();
	modeLimit = map();
	modeKey = map();
	currentTopic = map();
	topicDone = map();
	modesDone = map();
	bansDone = map();
	invitesDone = map();
	exceptionsDone = map();
	inProgress = map();
	
	DateTimeFormat = "ddd MMMM dd yyyy, HH:mm:ss";
}

menu channel
{
	"Channel settings" => {
		ctx = context();
		if (ctx["online"] == false) {
			showmessage("Not connected", "You are not connected to the server", "warn", "o");
			return;
		}

        channelOrig = channel;
        channel = strlower(channel);

		if (chansethndl[channel] != void && dlgvalidhndl(chansethndl[channel]))
			dlgclose(chansethndl[channel]);

		chansethndl[channel] = dialog("channelsettings");
		hndl = chansethndl[channel];
		
		is = strsplit(isupport("CHANMODES"), ",");
		hasInvites[channel] = strfind(&is[0], "I") >= 0;
		hasExceptions[channel] = strfind(&is[0], "e") >= 0;
		
		topicDone[channel] = false;
		modesDone[channel] = false;
		bansDone[channel] = false;
		invitesDone[channel] = hasInvites[channel] == false;
		exceptionsDone[channel] = hasExceptions[channel] == false;
		inProgress[channel] = true;
		
		# Custom attribute to keep track of which channel the dialog has an effect to
		dlgsetattr(hndl, "channel", channel);
		
		dlgsetattr(hndl, "title", "Settings for " + channelOrig);
		
		dlgsetwidgetattr(hndl, "bantable", "header", list("Mask", "Set by", "Date"));
		
		if (hasInvites[channel])
			dlgsetwidgetattr(hndl, "invitetable", "header", list("Mask", "Set by", "Date"));
		else {
			dlgsetwidgetattr(hndl, "invitetable", "header", list("Server does not support invite list"));
			dlgsetwidgetattr(hndl, "inviteadd", "enabled", false);
			dlgsetwidgetattr(hndl, "inviteremove", "enabled", false);
		}
			
		if (hasExceptions[channel])
			dlgsetwidgetattr(hndl, "exceptiontable", "header", list("Mask", "Set by", "Date"));
		else {
			dlgsetwidgetattr(hndl, "exceptiontable", "header", list("Server does not support exception list"));
			dlgsetwidgetattr(hndl, "exceptionadd", "enabled", false);
			dlgsetwidgetattr(hndl, "exceptionremove", "enabled", false);
		}
		
		/muteresp 331 332 333 324 329 367 368 346 347 348 349
		/mode %channel
		/mode %channel +b
		if (hasInvites[channel])
			/mode %channel +I
		if (hasExceptions[channel])
			/mode %channel +e
		/topic %channel
	}
}

hook numeric(code, params, message)
{
	channel = strlower(params[1]);

	if (channel == void)
		return;
		
	if (inProgress[channel] != true)
		return;

	hndl = chansethndl[channel];

	# No topic is set
	if (code == "331") {
		topicDone[channel] = true;
        currentTopic[channel] = "";
	}
	
	# Topic received
	else if (code == "332") {
		dlgsetwidgetattr(hndl, "topic", "text", message);
		topicDone[channel] = true;
		currentTopic[channel] = message;
	}

    # Topic-by message is always a bit late to the party so must be unmuted separately.
	else if (code == "333") {
		/unmuteresp 333
	}

	# Mode list received
	else if (code == "324") {
		args = list();
		i = 3; # 3rd position starts the possible first argument (key, limit)
		while (i < listlen(&params)) {
			listpush(&args, &params[i]);
			i = i + 1;
		}
		chanmodes[channel] = params[2];
		parseChannelModes(channel, params[2], args);
		modesDone[channel] = true;
	}
	
	# Ban list item received
	else if (code == "367") {
		handle = chansethndl[channel];
		
		mask = params[2];
		setby = params[3];
		ts = toint(params[4]);

		dlgtableinsert(handle, "bantable", list(mask, setby, unixts(ts, &DateTimeFormat)));
	}
	
	# Ban list end received
	else if (code == "368") {
		bansDone[channel] = true;
	}
	
	# Invites list item received
	else if (code == "346") {
		handle = chansethndl[channel];
		
		mask = params[2];
		setby = params[3];
		ts = toint(params[4]);

		dlgtableinsert(handle, "invitetable", list(mask, setby, unixts(ts, &DateTimeFormat)));
	}
	
	# Invites list end received
	else if (code == "347") {
		invitesDone[channel] = true;
	}
	
	# Exceptions list item received
	else if (code == "348") {
		handle = chansethndl[channel];
		
		mask = params[2];
		setby = params[3];
		ts = toint(params[4]);

		dlgtableinsert(handle, "exceptiontable", list(mask, setby, unixts(ts, &DateTimeFormat)));
	}
	
	# Exceptions list end received
	else if (code == "349") {
		exceptionsDone[channel] = true;
	}
	
	checkAndHandleAllDone(channel);
}

#
# Hooking onto 'mode' to receive any new/deleted entries in
# the ban/invite/except list for the given channel.
#
hook mode(sender, target, modes)
{
    target = strlower(target);
	if (chansethndl[target] == void)
		return;
	handle = chansethndl[target];
	
	len = strlen(&modes);
	i = 0;
	add = false;
	pidx = 0;
	params = strsplit(&modes, " ");
	while (i < len) {
		c = modes[i];
		if (c == "+" || c == "-") {
			add = c == "+";
			i = i + 1;
			continue;
		}
		
		if (c == "b") {
			pidx = pidx + 1;
			if (add) {
				row = list(params[pidx], sender, now(DateTimeFormat));
				dlgtableinsert(handle, "bantable", row);
			}
			else
				findAndRemoveFromTable(handle, "bantable", params[pidx]);
		}
		else if (c == "I") {
			pidx = pidx + 1;
			if (add) {
				row = list(params[pidx], sender, now(DateTimeFormat));
				dlgtableinsert(handle, "invitetable", row);
			}
			else
				findAndRemoveFromTable(handle, "invitetable", params[pidx]);
		}
		else if (c == "e") {
			pidx = pidx + 1;
			if (add) {
				row = list(params[pidx], sender, now(DateTimeFormat));
				dlgtableinsert(handle, "exceptiontable", row);
			}
			else
				findAndRemoveFromTable(handle, "exceptiontable", params[pidx]);
		}
		else
			break;
			
		i = i + 1;
	}
}

#
# Delete a hostmask from a table widget.
# Valid table widgets are obviously; bantable, invitetable, exceptiontable.
#
function findAndRemoveFromTable(handle, table, mask)
{
	rowcount = dlgtablecount(handle, table);
	i = 0;
	while (i < rowcount) {
		row = dlgtablerow(handle, table, i);
		if (row[0] == mask) {
			dlgtableremove(handle, table, i);
			return;
		}
		i = i + 1;
	}
}

#
# Checks if receiving all modes and lists is done.
# Side-effect, if done, clean up the receiving process.
#
function checkAndHandleAllDone(channel)
{
    channel = strlower(channel);

	if ((topicDone[channel] == false)
		|| (modesDone[channel] == false)
		|| (bansDone[channel] == false)
		|| (invitesDone[channel] == false)
		|| (exceptionsDone[channel] == false))
	{
		return false;
	}
	
	/unmuteresp 331 332 324 329 367 368 346 347 348 349
	inProgress[channel] = false;
	return true;
}

#
# Parse channel modes and set the checkboxes for the supported modes.
#
function parseChannelModes(channel, modes, args)
{
    channel = strlower(channel);

	hndl = chansethndl[channel];
	i = 0;
	argi = 0; # Index of 'args', increments on group B and C.
	while (i < strlen(&modes)) {
		c = modes[i];

		if (c == "n") {
			dlgsetwidgetattr(hndl, "mode_n", "checked", true);
		}
		else if (c == "t") {
			dlgsetwidgetattr(hndl, "mode_t", "checked", true);
		}
		else if (c == "i") {
			dlgsetwidgetattr(hndl, "mode_i", "checked", true);
		}
		else if (c == "p") {
			dlgsetwidgetattr(hndl, "mode_p", "checked", true);
		}
		else if (c == "s") {
			dlgsetwidgetattr(hndl, "mode_s", "checked", true);
		}
		else if (c == "m") {
			dlgsetwidgetattr(hndl, "mode_m", "checked", true);
		}
		else if (c == "k") {
			dlgsetwidgetattr(hndl, "mode_k", "checked", true);
			dlgsetwidgetattr(hndl, "channel_key", "text", args[argi]);
			modeKey[channel] = args[argi];
			argi = argi + 1;
		}
		else if (c == "l") {
			dlgsetwidgetattr(hndl, "mode_l", "checked", true);
			dlgsetwidgetattr(hndl, "channel_limit", "value", toint(args[argi]));
			modeLimit[channel] = args[argi];
			argi = argi + 1;
		}

		i = i + 1;
	}
}

dialog channelsettings
{
	width = 500;
	height = 380;
	icon = ":/Icons/options.png";
	
	button btncommon {
		text = "Common";
		checkable = true;
		checked = true;
		width = 80;
		height = 30;
		hook clicked => chanset_change_page(handle, "btncommon");
	}

	button btnbans {
		text = "Bans";
		checkable = true;
		x = 85;
		width = 80;
		height = 30;
		hook clicked => chanset_change_page(handle, "btnbans");
	}

	button btnexceptions {
		text = "Exceptions";
		checkable = true;
		x = 170;
		width = 80;
		height = 30;
		hook clicked => chanset_change_page(handle, "btnexceptions");
	}

	button btninvites {
		text = "Invites";
		checkable = true;
		x = 255;
		width = 80;
		height = 30;
		hook clicked => chanset_change_page(handle, "btninvites");
	}
		
	
	######################
	#       Common       #
	######################
	
	label labeltopic {
		text = "Topic";
		x = 5;
		y = 40;
		width = 60;
		height = 20;
	}

	textline topic {
		x = 45;
		y = 40;
		width = 450;
		height = 25;
	}
	
	groupbox modesbox {
		text = "Channel modes";
		x = 5;
		y = 65;
		width = 490;
		height = 280;
	}
	
	checkbox mode_n {
		x = 15;
		y = 90;
		height = 25;
		width = 200;
		text = "(n) No external messages";
	}
	checkbox mode_t {
		x = 15;
		y = 120;
		height = 25;
		width = 210;
		text = "(t) Only operators can set topic";
	}
	checkbox mode_i {
		x = 15;
		y = 150;
		height = 25;
		width = 110;
		text = "(i) Invite only";
	}
	checkbox mode_p {
		x = 15;
		y = 180;
		height = 25;
		width = 100;
		text = "(p) Private";
	}
	checkbox mode_s {
		x = 15;
		y = 210;
		height = 25;
		width = 100;
		text = "(s) Secret";
	}
	checkbox mode_m {
		x = 15;
		y = 240;
		height = 25;
		width = 350;
		text = "(m) Moderated, only privileged can send messages";
	}
	checkbox mode_k {
		x = 250;
		y = 90;
		height = 25;
		width = 210;
		text = "(k) Channel key";
	}
	textline channel_key {
		x = 270;
		y = 120;
		height = 25;
		width = 100;
	}
	checkbox mode_l {
		x = 250;
		y = 150;
		height = 25;
		width = 210;
		text = "(l) User limit";
	}
	spinbox channel_limit {
		x = 270;
		y = 180;
		height = 25;
		width = 100;
		min = 1;
		max = 999999;
	}
	
	######################
	#        Bans        #
	######################
	
	groupbox bansbox {
		text = "Ban list";
		x = 5;
		y = 40;
		width = 490;
		height = 305;
		visible = false;
	}
	
	table bantable {
		x = 15;
		y = 70;
		width = 470;
		height = 240;
		visible = false;
	}
	
	button banremove {
		text = "Remove";
		x = 15;
		y = 315;
		width = 100;
		height = 25;
		visible = false;
		hook clicked => {
			selectedRow = dlgtableselected(handle, "bantable");
			if (selectedRow > -1) {
				row = dlgtablerow(handle, "bantable", selectedRow);
				mask = row[0];
				channel = dlggetattr(handle, "channel");
				/mode %channel -b %mask
			}
		}
	}
	
	button banadd {
		text = "New ...";
		x = 120;
		y = 315;
		width = 100;
		height = 25;
		visible = false;
		hook clicked => {
			channel = dlggetattr(handle, "channel");
			mask = input("New ban", "Add a new ban mask:");
			if (mask != void && strlen(mask) > 0)
				/mode %channel +b %mask
		}
	}
	
	######################
	#      Invites       #
	######################
	
	groupbox invitesbox {
		text = "Invites list";
		x = 5;
		y = 40;
		width = 490;
		height = 305;
		visible = false;
	}
	
	table invitetable {
		x = 15;
		y = 70;
		width = 470;
		height = 240;
		visible = false;
	}
	
	button inviteremove {
		text = "Remove";
		x = 15;
		y = 315;
		width = 100;
		height = 25;
		visible = false;
		hook clicked => {
			selectedRow = dlgtableselected(handle, "invitetable");
			if (selectedRow > -1) {
				row = dlgtablerow(handle, "invitetable", selectedRow);
				mask = row[0];
				channel = dlggetattr(handle, "channel");
				/mode %channel -I %mask
			}
		}
	}
	
	button inviteadd {
		text = "New ...";
		x = 120;
		y = 315;
		width = 100;
		height = 25;
		visible = false;
		hook clicked => {
			channel = dlggetattr(handle, "channel");
			mask = input("New invite", "Add a new invite mask:");
			if (mask != void && strlen(mask) > 0)
				/mode %channel +I %mask
		}
	}
	
	######################
	#     Exceptions     #
	######################
	
	groupbox exceptionsbox {
		text = "Exceptions list";
		x = 5;
		y = 40;
		width = 490;
		height = 305;
		visible = false;
	}
	
	table exceptiontable {
		x = 15;
		y = 70;
		width = 470;
		height = 240;
		visible = false;
	}
	
	button exceptionremove {
		text = "Remove";
		x = 15;
		y = 315;
		width = 100;
		height = 25;
		visible = false;
		hook clicked => {
			selectedRow = dlgtableselected(handle, "exceptiontable");
			if (selectedRow > -1) {
				row = dlgtablerow(handle, "exceptiontable", selectedRow);
				mask = row[0];
				channel = dlggetattr(handle, "channel");
				/mode %channel -e %mask
			}
		}
	}
	
	button exceptionadd {
		text = "New ...";
		x = 120;
		y = 315;
		width = 100;
		height = 25;
		visible = false;
		hook clicked => {
			channel = dlggetattr(handle, "channel");
			mask = input("New exception", "Add a new exception mask:");
			if (mask != void && strlen(mask) > 0)
				/mode %channel +e %mask
		}
	}
	
	######################
	#    Cancel / save   #
	######################
		
	button btncancel {
		text = "Cancel";
		x = 290;
		y = 350;
		width = 100;
		height = 25;
		hook clicked => dlgclose(handle);
	}
	
	button btnsave {
		text = "Save && Close";
		x = 395;
		y = 350;
		width = 100;
		height = 25;
		hook clicked => {
			channel = dlggetattr(handle, "channel");

            newModes = createModeDiff(channel);
			if (strlen(newModes) > 0)
				/mode %channel %newModes

            newTopic = dlggetwidgetattr(handle, "topic", "text");
            if (newTopic != currentTopic[channel]) {
                if (newTopic == "")
                    /topic -c %channel
                else
                    /topic %channel %newTopic
            }

			dlgclose(handle);
		}
	}
}

#
# Returns a string of modes that reflect the changes in the dialog.
# Note that bans/invite/except lists are handled on-the-fly.
#
function createModeDiff(channel) 
{
    channel = strlower(channel);

	hndl = chansethndl[channel];

	unsetmodes = "";
	setmodes = "";
	params = "";

	# Find which modes to unset
	m = &chanmodes[channel];
	i = 0;
	while (i < strlen(m)) {
		c = m[i];
		if (	(c == "n" && dlggetwidgetattr(hndl, "mode_n", "checked") == false)
			||	(c == "t" && dlggetwidgetattr(hndl, "mode_t", "checked") == false)
			||	(c == "i" && dlggetwidgetattr(hndl, "mode_i", "checked") == false)
			||	(c == "p" && dlggetwidgetattr(hndl, "mode_p", "checked") == false)
			||	(c == "s" && dlggetwidgetattr(hndl, "mode_s", "checked") == false)
			||	(c == "m" && dlggetwidgetattr(hndl, "mode_m", "checked") == false)
			||	(c == "l" && dlggetwidgetattr(hndl, "mode_l", "checked") == false) )
		{
			unsetmodes = unsetmodes + c;
		}
		else if (c == "k" && dlggetwidgetattr(hndl, "mode_k", "checked") == false) {
			unsetmodes = unsetmodes + c;
			params = modeKey[channel];
		}
		i = i + 1;
	}
	
	# Find new modes to set
	if (strfind(m, "n") < 0 && dlggetwidgetattr(hndl, "mode_n", "checked") == true) {
		setmodes = setmodes + "n";
	}
	if (strfind(m, "t") < 0 && dlggetwidgetattr(hndl, "mode_t", "checked") == true) {
		setmodes = setmodes + "t";
	}
	if (strfind(m, "i") < 0 && dlggetwidgetattr(hndl, "mode_i", "checked") == true) {
		setmodes = setmodes + "i";
	}
	if (strfind(m, "p") < 0 && dlggetwidgetattr(hndl, "mode_p", "checked") == true) {
		setmodes = setmodes + "p";
	}
	if (strfind(m, "s") < 0 && dlggetwidgetattr(hndl, "mode_s", "checked") == true) {
		setmodes = setmodes + "s";
	}
	if (strfind(m, "m") < 0 && dlggetwidgetattr(hndl, "mode_m", "checked") == true) {
		setmodes = setmodes + "m";
	}
	if (strfind(m, "k") < 0 && dlggetwidgetattr(hndl, "mode_k", "checked") == true) {
		setmodes = setmodes + "k";
		newkey = dlggetwidgetattr(hndl, "channel_key", "text");
		if (newkey == "") {
			showmessage("Missing key", "The field for channel key is empty, yet marked as set", "warn", "o");
			return void;
		}
		params = newkey;
	}
	else if (strfind(m, "k") > -1 && dlggetwidgetattr(hndl, "mode_k", "checked") == true) {
		newkey = dlggetwidgetattr(hndl, "channel_key", "text");
		oldkey = modeKey[channel];
		if (newkey == "") {
			showmessage("Missing key", "The field for channel key is empty, yet marked as set", "warn", "o");
			return void;
		}
		if (newkey != oldkey) {
			unsetmodes = unsetmodes + "k";
			setmodes = setmodes + "k";
			params = oldkey + " " + newkey;
		}
	}
	if (strfind(m, "l") < 0 && dlggetwidgetattr(hndl, "mode_l", "checked") == true) {
		setmodes = setmodes + "l";
		newlimit = dlggetwidgetattr(hndl, "channel_limit", "value");
		if (strlen(params) > 0)
			params = params + " " + newlimit;
		else
			params = tostr(newlimit);
	}
	else if (strfind(m, "l") > -1 && dlggetwidgetattr(hndl, "mode_l", "checked") == true) {
		newlimit = tostr( dlggetwidgetattr(hndl, "channel_limit", "value") );
		mapdump(&modeLimit);
		if (newlimit != modeLimit[channel]) {
			setmodes = setmodes + "l";
			if (strlen(params) > 0)
				params = params + " " + newlimit;
			else
				params = newlimit;
		}
	}
	
	if (unsetmodes != "")
		unsetmodes = "-" + unsetmodes;
	if (setmodes != "")
		setmodes = "+" + setmodes;
	if (params != "")
		params = " " + params;
	return unsetmodes + setmodes + params;
}

#
# Change to the "Common" view
#
function chanset_show_common(handle, visible)
{
	dlgsetwidgetattr(handle, "btncommon", "checked", visible);

	dlgsetwidgetattr(handle, "labeltopic", "visible", visible);
	dlgsetwidgetattr(handle, "topic", "visible", visible);
	dlgsetwidgetattr(handle, "modesbox", "visible", visible);
	dlgsetwidgetattr(handle, "mode_n", "visible", visible);
	dlgsetwidgetattr(handle, "mode_t", "visible", visible);
	dlgsetwidgetattr(handle, "mode_i", "visible", visible);
	dlgsetwidgetattr(handle, "mode_p", "visible", visible);
	dlgsetwidgetattr(handle, "mode_s", "visible", visible);
	dlgsetwidgetattr(handle, "mode_m", "visible", visible);
	dlgsetwidgetattr(handle, "mode_k", "visible", visible);
	dlgsetwidgetattr(handle, "channel_key", "visible", visible);
	dlgsetwidgetattr(handle, "mode_l", "visible", visible);
	dlgsetwidgetattr(handle, "channel_limit", "visible", visible);
}

#
# Change to the "Bans" view
#
function chanset_show_bans(handle, visible)
{
	dlgsetwidgetattr(handle, "btnbans", "checked", visible);

	dlgsetwidgetattr(handle, "bansbox", "visible", visible);
	dlgsetwidgetattr(handle, "bantable", "visible", visible);
	dlgsetwidgetattr(handle, "banadd", "visible", visible);
	dlgsetwidgetattr(handle, "banremove", "visible", visible);
}

#
# Change to the "Invites" view
#
function chanset_show_invites(handle, visible)
{
	dlgsetwidgetattr(handle, "btninvites", "checked", visible);

	dlgsetwidgetattr(handle, "invitesbox", "visible", visible);
	dlgsetwidgetattr(handle, "invitetable", "visible", visible);
	dlgsetwidgetattr(handle, "inviteadd", "visible", visible);
	dlgsetwidgetattr(handle, "inviteremove", "visible", visible);
}

#
# Change to the "Exceptions" view
#
function chanset_show_exceptions(handle, visible)
{
	dlgsetwidgetattr(handle, "btnexceptions", "checked", visible);

	dlgsetwidgetattr(handle, "exceptionsbox", "visible", visible);
	dlgsetwidgetattr(handle, "exceptiontable", "visible", visible);
	dlgsetwidgetattr(handle, "exceptionadd", "visible", visible);
	dlgsetwidgetattr(handle, "exceptionremove", "visible", visible);
}

#
# Called when clicking either of the buttons Common, Bans, Invites or Exceptions.
#
function chanset_change_page(handle, button)
{
	chanset_show_common(handle, button == "btncommon");
	chanset_show_bans(handle, button == "btnbans");
	chanset_show_invites(handle, button == "btninvites");
	chanset_show_exceptions(handle, button == "btnexceptions");
}