#! /usr/bin/env lua

local commands = {}

function trim(s)

  return s:match("^%s*(.-)%s*$")

end

function rtrim(s)

  return s:gsub("%s+$", "")

end

function string.starts(String,Start)

   return string.sub(String, 1, string.len(Start)) == Start

end

function mcbot_register_command (name, callback)

    commands[name] = callback

end

require "cmds.wtf"

require "cmds.calc"

require "cmds.spell"

require "cmds.dict"

require "cmds.misc"

function process (line, botdata, muc)

    local n

    line = trim(line)

    line, n = line:gsub("^"..botdata.nickname.."[,: ]%s+", "")

    if muc and n ~= 1 then return nil, nil end

    local cmd, arg

    cmd = line:match("^(%w+)%s*[!]*$")

    if not cmd then

        -- Check if there are arguments

        cmd, arg = line:match("^(%w+)%s+(.*)")

    end

    if cmd then

        for name, f in pairs(commands) do

            if cmd and cmd:lower() == name then

                return f(arg, botdata)

            end

        end

    else

        -- Ignore smileys

        if line:match("^[:;8]'?%-?[D()|/\\%[%]pPoO$@]+%s*$") then return nil,nil end

        if line:match("^^^%s*$") then return nil,nil end

    end

    return "I don't understand, Sir"

end