local config = {
    newNameMinLength = 3, -- minimalna dlugosc imienia
    premiumDaysCost = 0, -- ile dni pacca odejmuje graczowi, ktoremu zmienia sie imie
    timeoutToChangeName = 5000
}

local function changeName(newName, oldName, accountId, cid)
    if isPlayer(cid) then
        if config.premiumDaysCost > 0 then
            doPlayerAddPremiumDays(cid, config.premiumDaysCost)
        end

        doRemoveCreature(cid)
    elseif config.premiumDaysCost > 0 then
        db.executeQuery('UPDATE `accounts` SET `premdays` = (CASE WHEN `premdays` - '..config.premiumDaysCost..' < 0 THEN 0 ELSE `premdays` - '..config.premiumDaysCost..' END) WHERE `id` = '..accountId..';')
    end

    db.executeQuery('UPDATE `players` SET `name` = '..db.escapeString(newName) .. ' WHERE `name` = '..db.escapeString(oldName))
    if isPlayer(cid) then
        doPlayerSendTextMessage(cid, MESSAGE_STATUS_CONSOLE_ORANGE, oldName .. "'s name has been changed to " .. newName .. ".")
    end
end

function onSay(cid, words, param, channel)
	local newName = param
    if newName:len() < config.newNameMinLength then
        doPlayerSendTextMessage(cid, MESSAGE_STATUS_CONSOLE_ORANGE, 'You need to specify nick with at least '..config.newNameMinLength..' letters.')
        return true
    end

    local exists = db.getResult('SELECT `account_id`, `name`, `online` FROM `players` WHERE `name` = '..db.escapeString(newName)..'')
    if exists:getID() ~= -1 then
        doPlayerSendTextMessage(cid, MESSAGE_STATUS_CONSOLE_ORANGE, 'Player with this name "'..newName..'" is already exists.')
        return true
    end

	doPlayerSendTextMessage(cid, MESSAGE_STATUS_WARNING, '    NAMELOCK!\n Your nick name is now changing. After you will be logged out - please login into your ACCOUNT (not character) again.')

	local oldName = getCreatureName(cid)
    if config.timeoutToChangeName > 0 then
        doPlayerSendTextMessage(cid, MESSAGE_STATUS_CONSOLE_ORANGE, 'Changing '..oldName .. "'s name in process...")
        addEvent(changeName, config.timeoutToChangeName, newName, oldName, exists:getDataInt('account_id'), cid)
    else
        changeName(newName, oldName, exists:getDataInt('account_id'), cid)
    end
    return true
end