【引擎触发】寄售行过期下架：到期返还的定时触发设计

setontimerex(92, 3600)
function ontimer92()
    local now = os.time()
    for i = 1, 200 do
        local rec = getsysvar("SELL_REC_" .. i)
        if rec ~= nil and rec ~= "" then
            local owner, item, ts = string.match(rec, "(%w+)|([^|]+)|(%d+)")
            if ts ~= nil and now - tonumber(ts) > 259200 then
                sendmail(owner, 0, "寄售到期返还", "寄售的" .. item .. "已下架返还", item .. "|1")
                setsysvar("SELL_REC_" .. i, "")
            end
        end
    end
end

local function settleRefund(owner, item, fee)
    local note = "物品已返还；手续费" .. fee .. "金币已从保证金扣除"
    sendmail(owner, 0, "寄售清算通知", note, item .. "|1")
end