plugins/commands.lua

function riddim.plugins.commands(bot)

	local command_pattern = "^%"..bot.config.command_prefix.."([%a%-%_%d]+)(%s?)(.*)$";

	local direct_address_pattern = false;

	if bot.config.nick then

		direct_address_pattern = "^"..bot.config.nick.."[,: ]+([%a%-%_%d]+)(%s?)(.*)";

	end

	local function process_command(event)

		local body = event.body;

		if not body then return; end

		if event.delay then return; end -- Don't process old messages from groupchat

		local command, hasparam, param = body:match(command_pattern);

		if not command and direct_address_pattern then

			command, hasparam, param = body:match(direct_address_pattern);

		end

		if not command then

			command, hasparam, param = body:match("%[([%a%-%_%d]+)(%s?)(.*)%]");

			if event.room then

				local direct_to = body:match"^(.-)[,:]"

				if event.room.occupants[direct_to] then

					event.reply_to = direct_to

				end

			end

		end

		if hasparam ~= " " then param = nil; end

		if command then

			local command_event = {

				command = command,

				param = param,

				sender = event.sender,

				stanza = event.stanza,

				reply = event.reply,

				room = event.room, -- groupchat support

			};

			local ret = bot:event("commands/"..command, command_event);

			if ret == nil then

				ret = bot:event("unhandled-command", command_event);

			end

			if type(ret) == "string" then

				event:reply(ret);

			end

			return ret;

		end

	end

	-- Hook messages sent to bot, fire a command event on the bot

	bot:hook("message", process_command);

	-- Support groupchat plugin: Hook messages from rooms that the bot joins

	bot:hook("groupchat/joining", function (room)

		room:hook("message", process_command);

	end);

end