Система принятия решений и/или Нечеткая логика(FuzzyLogic)

-- ============================================================
-- 1. Order State Machine (FSM)
-- ============================================================
local OrderState = {}
OrderState.__index = OrderState

function OrderState:new(trans_id, params)
    local o = {
        state = "NEW",          -- NEW, SENT, ACK, PARTIAL, FILLED, CANCEL_PENDING, CANCELLED, REJECTED
        trans_id = trans_id,
        order_num = nil,
        strategy = params.strategy,
        sec = params.sec,
        side = params.side,
        qty = params.qty,
        price = params.price,
        filled = 0,
        created_at = os.time(),
        last_update = os.time(),
        is_net = params.is_net or false,
    }
    setmetatable(o, self)
    return o
end

function OrderState:on_sent()
    self.state = "SENT"
    self.last_update = os.time()
end

function OrderState:on_ack(order_num)
    self.order_num = order_num
    self.state = "ACK"
    self.last_update = os.time()
end

function OrderState:on_trade(trade_qty)
    if self.state == "CANCELLED" then
        self.logger:warn("Trade after cancel, still processing")
    end
    -- обновление filled
    if self.filled >= self.qty then
        self.state = "FILLED"
    else
        if self.state ~= "CANCELLED" then
            self.state = "PARTIAL"
        end
    end
end

function OrderState:on_cancel()
    if self.state == "FILLED" then return end
    if self:is_active() then
        self.state = "CANCEL_PENDING"
    end
end

function OrderState:on_cancelled()
    self.state = "CANCELLED"
    self.last_update = os.time()
end

function OrderState:on_reject()
    self.state = "REJECTED"
    self.last_update = os.time()
end

function OrderState:on_timeout()
    if self:is_active() then
        self.state = "CANCELLED"
        self.last_update = os.time()
    end
end

function OrderState:is_active()
    return self.state == "SENT" or self.state == "ACK" or self.state == "PARTIAL"
end

function main()
    local last_trade_count = getNumberOf("trades") -- Запоминаем кол-во сделок при старте
    
    while is_run do
        local current_count = getNumberOf("trades")
        
        if current_count > last_trade_count then
            -- Проходим по всем новым сделкам
            for i = last_trade_count, current_count - 1 do
                local trade = getItem("trades", i)
                message("Новая сделка (Pull): " .. tostring(trade.sec_code) .. " по цене " .. trade.price)
            end
            last_trade_count = current_count
        end
        
        sleep(30) -- Пауза  мл.секунд, чтобы не вешать процессор
    end
end