Time Chests (with chance)

-- Time Chests by Limos (with chance)
function onUse(cid, item, fromPosition, itemEx, toPosition)

    local chests = {
        [9001] = {
            waittime = 14400, -- time in seconds
            storage = 3301,
            level = 50,
            rewarditems = {
                {id = 2647, count = 1, chance = 5}, -- start with the lowest chances
                {id = 2462, count = 1, chance = 10},
                {id = 2124, count = 1, chance = 15},
                {id = 2152, count = math.random(1, 50), chance = 70}
            }
        },
        [9002] = {
            waittime = 14400,
            storage = 3302,
            level = 50,
            rewarditems = {
                {id = 2488, count = 1, chance = 5},
                {id = 2498, count = 1, chance = 10},
                {id = 2492, count = 1, chance = 15},
                {id = 2160, count = math.random(1, 5), chance = 70}
            }
        },
        [9003] = {
            waittime = 14400,
            storage = 3303,
            level = 50,
            rewarditems = {
                {id = 2470, count = 1, chance = 5},
                {id = 7385, count = 1, chance = 10},
                {id = 2514, count = 1, chance = 15},
                {id = 2160, count = math.random(20, 50), chance = 70}
            }
        }
    }

    local x = chests[item.uid]
    if getPlayerLevel(cid) < x.level then
        doSendMagicEffect(getThingPos(cid), CONST_ME_POFF)
        doPlayerSendCancel(cid, "You need to be level "..x.level.." to open the chest.")
        return true
    end

    if exhaustion.check(cid, x.storage) then
        local time = exhaustion.get(cid, x.storage)
        local hours, minutes, seconds = math.floor (time / 3600), math.floor ((time - ((math.floor (time / 3600)) * 3600))/ 60), time - ((math.floor (time/60)) * 60)
        if time >= 3600 then
            text = hours.." "..(hours > 1 and "hours" or "hour")..", "..minutes.." "..(minutes > 1 and "minutes" or "minute").." and "..seconds.." "..(seconds > 1 and "seconds" or "second")
        elseif time >= 120 then
            text = minutes.." "..(minutes > 1 and "minutes" or "minute").." and "..seconds.." "..(seconds > 1 and "seconds" or "second")
        else
            text = seconds.." "..(seconds > 1 and "seconds" or "second")
        end
        doSendMagicEffect(getThingPos(cid), CONST_ME_POFF)
        doPlayerSendTextMessage(cid, MESSAGE_EVENT_ADVANCE, "It is empty. You need to wait "..text.." before you can get a reward again.")
        return true
    end

    local chance = math.random(1,100)
    for i = 1, #x.rewarditems, 1 do
        if chance < x.rewarditems[i].chance then
            local info = getItemInfo(x.rewarditems[i].id)
            if x.rewarditems[i].count > 1 then
                text = x.rewarditems[i].count .. " " .. info.plural
            else
                text = info.article .. " " .. info.name
            end

            local item = doCreateItemEx(x.rewarditems[i].id, x.rewarditems[i].count)
            if doPlayerAddItemEx(cid, item, false) ~= RETURNVALUE_NOERROR then
                doSendMagicEffect(getThingPos(cid), CONST_ME_POFF)
                text = "You have found a reward. It is to heavy or you have not enough space."
            else
                text = "You have found " .. text .. "."
                exhaustion.set(cid, x.storage, x.waittime)
            end
            doPlayerSendTextMessage(cid, MESSAGE_INFO_DESCR, text)
            return true
        else
            chance = chance - x.rewarditems[i].chance
        end
    end
end