-- Id: -- More information about this indicator can be found at: -- http://fxcodebase.com/code/viewtopic.php?f=17&t=63817 --+------------------------------------------------------------------+ --| Copyright © 2018, Gehtsoft USA LLC | --| http://fxcodebase.com | --+------------------------------------------------------------------+ --| Developed by : Mario Jemic | --| mario.jemic@gmail.com | --+------------------------------------------------------------------+ --| Support our efforts by donating | --| Paypal : https://goo.gl/9Rj74e | --| Patreon : https://goo.gl/GdXWeN | --| BitCoin : 15VCJTLaz12Amr7adHSBtL9v8XomURo9RF | --| BitCoin Cash : 1BEtS465S3Su438Kc58h2sqvVvHK9Mijtg | --| Ethereum : 0x8C110cD61538fb6d7A2B47858F0c0AaBd663068D | --| LiteCoin : LLU8PSY2vsq7B9kRELLZQcKf5nJQrdeqwD | --+------------------------------------------------------------------+ local indi_alerts = {}; local Modules = {}; function Init() indicator:name("Candle Signal Alert"); indicator:description("v 2.0 2018-08-30"); indicator:requiredSource(core.Bar); indicator:type(core.Indicator); indicator.parameters:addString("ALLOWEDSIDE", "Allowed side", "Allowed side for trading or signaling, can be Sell, Buy or Both", "Both"); indicator.parameters:addStringAlternative("ALLOWEDSIDE", "Both", "", "Both"); indicator.parameters:addStringAlternative("ALLOWEDSIDE", "Buy", "", "Buy"); indicator.parameters:addStringAlternative("ALLOWEDSIDE", "Sell", "", "Sell"); indi_alerts:AddParameters(indicator.parameters); indi_alerts:AddAlert("Candle Signal"); indicator.parameters:addGroup("Trading"); trading:Init(indicator.parameters); end local FIRST=true; local first; local source = nil; local Shift=0; local ALLOWEDSIDE; -- Routine function Prepare(nameOnly) for _, module in pairs(Modules) do module:Prepare(nameOnly); end indi_alerts:Prepare(); indi_alerts.source = instance.source; instance:drawOnMainChart(true); FIRST = true; ALLOWEDSIDE = instance.parameters.ALLOWEDSIDE; source = instance.source; -- Base name of the indicator. local name = profile:id() .. "(" .. source:name() .. ")"; instance:name(name); if nameOnly then return; end first=source:first() ; end function Update(period, mode) for _, module in pairs(Modules) do if module.BlockTrading ~= nil and module:BlockTrading(1, source, period) then return; end end for _, module in pairs(Modules) do if module.ExtUpdate ~= nil then module:ExtUpdate(id, source, period); end end if period < first then return; end for _, alert in ipairs(indi_alerts.Alerts) do Activate(alert, period, period ~= source:size() - 1); end end function ReleaseInstance() end function Draw(stage, context) indi_alerts:Draw(stage, context, source); end local last_serial; function Activate(alert, period, historical_period) if indi_alerts.Live ~= "Live" then period = period - 1; end alert.Alert[period] = 0; if alert.id == 1 and alert.ON then if source.close[period-2] < source.open[period-2] and source.close[period-1] < source.open[period-1] and source.close[period] > source.open[period] and source.close[period] > source.open[period-2] and ALLOWEDSIDE ~= "Sell" then alert:UpAlert(source, period, alert.Label .. ". Cross Over", source.high[period], historical_period); if not historical_period and instance.parameters.allow_trade and last_serial ~= source:serial(period) then if instance.parameters.close_on_opposite then trading:FindTrade() :WhenSide("S") :WhenCustomID(custom_id) :Do(function (trade) trading:Close(trade); end ); end if instance.parameters.position_cap then local positions = trading:FindTrade() :WhenSide("B") :WhenCustomID(custom_id) :Count(); if positions >= instance.parameters.no_of_positions then return; end end local command = trading:MarketOrder(source:instrument()) :SetSide("B") :SetAccountID(instance.parameters.account) :SetAmount(instance.parameters.amount) :SetCustomID(custom_id); if instance.parameters.set_stop then command = command:SetPipStop(nil, instance.parameters.stop, instance.parameters.trailing_stop and instance.parameters.trailing or nil); end if instance.parameters.set_limit then command = command:SetPipLimit(nil, instance.parameters.limit); end command:Execute(); end last_serial = source:serial(period); elseif source.close[period-2] > source.open[period-2] and source.close[period-1] > source.open[period-1] and source.close[period] < source.open[period] and source.close[period]< source.open[period-2] and ALLOWEDSIDE ~= "Buy" then alert:DownAlert(source, period, alert.Label .. ". Cross Under", source.low[period], historical_period); if not historical_period and instance.parameters.allow_trade and last_serial ~= source:serial(period) then if instance.parameters.close_on_opposite then trading:FindTrade() :WhenSide("B") :WhenCustomID(custom_id) :Do(function (trade) trading:Close(trade); end ); end if instance.parameters.position_cap then local positions = trading:FindTrade() :WhenSide("S") :WhenCustomID(custom_id) :Count(); if positions >= instance.parameters.no_of_positions then return; end end local command = trading:MarketOrder(source:instrument()) :SetSide("S") :SetAccountID(instance.parameters.account) :SetAmount(instance.parameters.amount) :SetCustomID(custom_id); if instance.parameters.set_stop then command = command:SetPipStop(nil, instance.parameters.stop, instance.parameters.trailing_stop and instance.parameters.trailing or nil); end if instance.parameters.set_limit then command = command:SetPipLimit(nil, instance.parameters.limit); end command:Execute(); end last_serial = source:serial(period); end end if indi_alerts.FIRST then indi_alerts.FIRST = false; end end function AsyncOperationFinished(cookie, success, message, message1, message2) for _, module in pairs(Modules) do if module.AsyncOperationFinished ~= nil then module:AsyncOperationFinished(cookie, success, message, message1, message2); end end indi_alerts:AsyncOperationFinished(cookie, success, message, message1, message2) end indi_alerts.Version = "1.3.1"; indi_alerts.last_id = 0; indi_alerts.FIRST = true; indi_alerts.total_alerts = 1; indi_alerts._alerts = {}; indi_alerts._advanced_alert_timer = nil; function indi_alerts:AddParameters(parameters) indicator.parameters:addGroup("Alert Mode"); indicator.parameters:addString("Live", "End of Turn / Live", "", "Live"); indicator.parameters:addStringAlternative("Live", "End of Turn", "", "End of Turn"); indicator.parameters:addStringAlternative("Live", "Live", "", "Live"); indicator.parameters:addInteger("ToTime", "Convert the date to", "", 6) indicator.parameters:addIntegerAlternative("ToTime", "EST", "", 1) indicator.parameters:addIntegerAlternative("ToTime", "UTC", "", 2) indicator.parameters:addIntegerAlternative("ToTime", "Local", "", 3) indicator.parameters:addIntegerAlternative("ToTime", "Server", "", 4) indicator.parameters:addIntegerAlternative("ToTime", "Financial", "", 5) indicator.parameters:addIntegerAlternative("ToTime", "Display", "", 6) indicator.parameters:addGroup("Alert Style"); indicator.parameters:addColor("UpTrendColor", "Up Trend Color", "", core.rgb(0, 0, 255)); indicator.parameters:addColor("DownTrendColor", "Down Trend Color", "", core.rgb(0, 0, 255)); indicator.parameters:addInteger("Size", "Label Size", "", 10, 1 , 100); indicator.parameters:addGroup("Alerts"); indicator.parameters:addBoolean("Show", "Show Dialog box Alert", "", true); indicator.parameters:addBoolean("ShowAlert", "Show Alert", "", true); indicator.parameters:addGroup("Alerts Sound"); indicator.parameters:addBoolean("PlaySound", "Play Sound", "", true); indicator.parameters:addBoolean("RecurrentSound", "Recurrent Sound", "", false); indicator.parameters:addGroup("Alerts Email"); indicator.parameters:addString("Email", "Email", "", ""); indicator.parameters:setFlag("Email", core.FLAG_EMAIL); indicator.parameters:addGroup("External Alerts"); indicator.parameters:addBoolean("use_advanced_alert", "Send Advanced Alert", "Telegram or Telegram Channel", false); indicator.parameters:addString("telegram_key", "Advanced Alert Key", "Start converstation with @profit_robots_bot Telegram Bot to get the key", ""); end function indi_alerts:AsyncOperationFinished(cookie, success, message, message1, message2) if cookie == self._advanced_alert_timer and #self._alerts > 0 then if self._advanced_alert_key == nil then return; end local data = self:ArrayToJSON(self._alerts); self._alerts = {}; local req = http_lua.createRequest(); local query = string.format('{"Key":"%s","StrategyName":"%s","Platform":"FXTS2","Notifications":%s}', self._advanced_alert_key, string.gsub(self.StrategyName or "", '"', '\\"'), data); req:setRequestHeader("Content-Type", "application/json"); req:setRequestHeader("Content-Length", tostring(string.len(query))); req:start("http://profitrobots.com/api/v1/notification", "POST", query); end end function indi_alerts:ToJSON(item) local json = {}; function json:AddStr(name, value) local separator = ""; if self.str ~= nil then separator = ","; else self.str = ""; end self.str = self.str .. string.format("%s\"%s\":\"%s\"", separator, tostring(name), tostring(value)); end function json:AddNumber(name, value) local separator = ""; if self.str ~= nil then separator = ","; else self.str = ""; end self.str = self.str .. string.format("%s\"%s\":%f", separator, tostring(name), value or 0); end function json:AddBool(name, value) local separator = ""; if self.str ~= nil then separator = ","; else self.str = ""; end self.str = self.str .. string.format("%s\"%s\":%s", separator, tostring(name), value and "true" or "false"); end function json:ToString() return "{" .. (self.str or "") .. "}"; end local first = true; for idx,t in pairs(item) do local stype = type(t) if stype == "number" then json:AddNumber(idx, t); elseif stype == "string" then json:AddStr(idx, t); elseif stype == "boolean" then json:AddBool(idx, t); elseif stype == "function" or stype == "table" then else core.host:trace(tostring(idx) .. " " .. tostring(stype)); end end return json:ToString(); end function indi_alerts:ArrayToJSON(arr) local str = "["; for i, t in ipairs(self._alerts) do local json = self:ToJSON(t); if str == "[" then str = str .. json; else str = str .. "," .. json; end end return str .. "]"; end function indi_alerts:AddAlert(Label) self.last_id = self.last_id + 1; indicator.parameters:addGroup(Label .. " Alert"); indicator.parameters:addBoolean("ON" .. self.last_id , "Show " .. Label .." Alert" , "", true); indicator.parameters:addFile("Up" .. self.last_id, Label .. " Cross Over Sound", "", ""); indicator.parameters:setFlag("Up" .. self.last_id, core.FLAG_SOUND); indicator.parameters:addFile("Down" .. self.last_id, Label .. " Cross Under Sound", "", ""); indicator.parameters:setFlag("Down" .. self.last_id, core.FLAG_SOUND); indicator.parameters:addString("Label" .. self.last_id, "Label", "", Label); end indi_alerts.init = false; function indi_alerts:Draw(stage, context) if stage ~= 102 then return; end if not self.init then context:createFont(1, "Wingdings", context:pointsToPixels(self.Size), context:pointsToPixels(self.Size), 0); self.init = true; end for period = math.max(context:firstBar(), self.source:first()), math.min(context:lastBar(), self.source:size()-1), 1 do x, x1, x2= context:positionOfBar(period); for _, level in ipairs(self.Alerts) do if level.Alert:hasData(period) then if level.Alert[period]== 1 then visible, y = context:pointOfPrice (level.AlertLevel[period]); width, height = context:measureText (1, "\225", 0); context:drawText (1, "\225", self.UpTrendColor, -1, x-width/2 , y-height , x+width/2 , y, 0 ); elseif level.Alert[period]== -1 then visible, y = context:pointOfPrice (level.AlertLevel[period]); width, height = context:measureText (1, "\226", 0); context:drawText (1, "\226", self.DownTrendColor, -1, x-width/2 , y , x+width/2 ,y+height, 0 ); end end end end end indi_alerts.Alerts = {}; function indi_alerts:GetTimezone() local tz = instance.parameters.ToTime; if tz == 1 then return core.TZ_EST elseif tz == 2 then return core.TZ_UTC elseif tz == 3 then return core.TZ_LOCAL elseif tz == 4 then return core.TZ_SERVER elseif tz == 5 then return core.TZ_FINANCIAL elseif tz == 6 then return core.TZ_TS end end function indi_alerts:Prepare() self.Show = instance.parameters.Show; self.Live = instance.parameters.Live; self.ShowAlert = instance.parameters.ShowAlert; self.ToTime = self:GetTimezone(); self.UpTrendColor = instance.parameters.UpTrendColor; self.DownTrendColor = instance.parameters.DownTrendColor; self.Size = instance.parameters.Size; self.SendEmail = instance.parameters.SendEmail; self.PlaySound = instance.parameters.PlaySound; local i; for i = 1, self.total_alerts, 1 do local alert = {}; alert.id = i; alert.Label = instance.parameters:getString("Label" .. i); alert.ON = instance.parameters:getBoolean("ON" .. i); alert.Up = self.PlaySound and instance.parameters:getString("Up" .. i) or nil; alert.Down = self.PlaySound and instance.parameters:getString("Down" .. i) or nil; assert(not(self.PlaySound) or (self.PlaySound and alert.Up ~= "") or (self.PlaySound and alert.Up ~= ""), "Sound file must be chosen"); assert(not(self.PlaySound) or (self.PlaySound and alert.Down ~= "") or (self.PlaySound and alert.Down ~= ""), "Sound file must be chosen"); alert.U = nil; alert.D = nil; alert.Alert = instance:addInternalStream(0, 0); alert.AlertLevel = instance:addInternalStream(0, 0); function alert:DownAlert(source, period, text, level, historical_period) shift = indi_alerts.Live ~= "Live" and 1 or 0; self.Alert[period] = -1; self.AlertLevel[period] = level; self.U = nil; if self.D ~= source:serial(period) and period == source:size() - 1 - shift and not indi_alerts.FIRST then self.D = source:serial(period); if not historical_period then indi_alerts:SoundAlert(self.Down); indi_alerts:EmailAlert(self.Label, text, period); indi_alerts:SendAlert(self.Label, text, period); if indi_alerts.Show then indi_alerts:Pop(self.Label, text); end end end end function alert:UpAlert(source, period, text, level, historical_period) shift = indi_alerts.Live ~= "Live" and 1 or 0; self.Alert[period] = 1; self.AlertLevel[period] = level; self.D = nil; if self.U ~= source:serial(period) and period == source:size() - 1 - shift and not indi_alerts.FIRST then self.U=source:serial(period); if not historical_period then indi_alerts:SoundAlert(self.Up); indi_alerts:EmailAlert(self.Label, text, period); indi_alerts:SendAlert(self.Label, text, period); if indi_alerts.Show then indi_alerts:Pop(self.Label, text); end end end end self.Alerts[#self.Alerts + 1] = alert; end self.Email = self.SendEmail and instance.parameters.Email or nil; assert(not(self.SendEmail) or (self.SendEmail and self.Email ~= ""), "E-mail address must be specified"); self.RecurrentSound = instance.parameters.RecurrentSound; if instance.parameters.advanced_alert_key ~= "" and instance.parameters.use_advanced_alert then self._advanced_alert_key = instance.parameters.advanced_alert_key; require("http_lua"); self._advanced_alert_timer = 1234; core.host:execute("setTimer", self._advanced_alert_timer, 1); end end function indi_alerts:Pop(label, note) core.host:execute("prompt", 1, label, self.source:instrument() .. " " .. label .. " : " .. note); end function indi_alerts:SoundAlert(Sound) if not self.PlaySound then return; end terminal:alertSound(Sound, self.RecurrentSound); end function indi_alerts:EmailAlert(label, Subject, period) if not self.SendEmail then return end local now = self.source:date(period); now = core.host:execute("convertTime", core.TZ_EST, self.ToTime, now); local DATA = core.dateToTable(now) local delim = "\013\010"; local Note = profile:id().. delim.. " Label : " ..label .. delim .. " Alert : " .. Subject; local Symbol = "Instrument : " .. self.source:instrument() ; local Time = " Date : " .. DATA.month.." / ".. DATA.day .." Time: ".. DATA.hour .." / ".. DATA.min .." / ".. DATA.sec; local TF = "Time Frame : " .. source:barSize() local text = Note .. delim .. Symbol .. delim .. TF .. delim .. Time; terminal:alertEmail(self.Email, profile:id(), text); end function indi_alerts:SendAlert(label, Subject, period) if not self.ShowAlert then return; end local now = self.source:date(period); now = core.host:execute("convertTime", core.TZ_EST, self.ToTime, now); local DATA = core.dateToTable(now) local delim = "\013\010"; local Note = profile:id().. delim.. " Label : " ..label .. delim .. " Alert : " .. Subject; local Symbol = "Instrument : " .. self.source:instrument() ; local Time = " Date : " .. DATA.month.." / ".. DATA.day .." Time: ".. DATA.hour .." / ".. DATA.min .." / ".. DATA.sec; local TF = "Time Frame : " .. source:barSize() local text = Note .. delim .. Symbol .. delim .. TF .. delim .. Time; terminal:alertMessage(self.source:instrument(), self.source[NOW], text, self.source:date(NOW)); end function indi_alerts:AlertTelegram(message, instrument, timeframe) local alert = {}; alert.Text = message or ""; alert.Instrument = instrument or ""; alert.TimeFrame = timeframe or ""; self._alerts[#self._alerts + 1] = alert; end trading = {}; trading.Name = "Trading"; trading.Version = "4.6.0"; trading.Debug = false; trading.AddAmountParameter = true; trading.AddStopParameter = true; trading.AddLimitParameter = true; trading._ids_start = nil; trading._signaler = nil; trading._allow_trade = false; trading._account = nil; trading._amount = 1; trading._all_modules = {}; trading._limit = nil; trading._stop = nil; trading._trailing_stop = nil; trading._request_id = {}; trading._waiting_requests = {}; trading._used_stop_orders = {}; trading._used_limit_orders = {}; function trading:trace(str) if not self.Debug then return; end core.host:trace(self.Name .. ": " .. str); end function trading:RegisterModule(modules) for _, module in pairs(modules) do self:OnNewModule(module); module:OnNewModule(self); end modules[#modules + 1] = self; self._ids_start = (#modules) * 100; end function trading:Init(parameters) parameters:addBoolean("allow_trade", "Allow strategy to trade", "", false); parameters:setFlag("allow_trade", core.FLAG_ALLOW_TRADE); parameters:addString("account", "Account to trade on", "", ""); parameters:setFlag("account", core.FLAG_ACCOUNT); if self.AddAmountParameter then parameters:addInteger("amount", "Trade Amount in Lots", "", 1); end if self.AddStopParameter then parameters:addBoolean("set_stop", "Set Stop Orders", "", false); parameters:addInteger("stop", "Stop Order in pips", "", 30); parameters:addBoolean("use_trailing", "Trailing stop order", "", false); parameters:addInteger("trailing", "Trailing in pips", "Use 1 for dynamic and 10 or greater for the fixed trailing", 1); end if self.AddLimitParameter then parameters:addBoolean("set_limit", "Set Limit Orders", "", false); parameters:addInteger("limit", "Limit Order in pips", "", 30); end parameters:addBoolean("close_on_opposite", "Close on Opposite", "", true); parameters:addBoolean("position_cap", "Position Cap", "", false); parameters:addInteger("no_of_positions", "No of open positions", "", 1); end function trading:Prepare(name_only) --do what you usually do in prepare if name_only then return; end self._account = instance.parameters.account; if self.AddAmountParameter then self._amount = instance.parameters.amount; end self._allow_trade = instance.parameters.allow_trade; if instance.parameters.set_limit then self._limit = instance.parameters.limit; end if instance.parameters.set_stop then self._stop = instance.parameters.stop; if instance.parameters.use_trailing then self._trailing_stop = instance.parameters.trailing; end end end function trading:OnNewModule(module) if module.Name == "Signaler" then self._signaler = module; end self._all_modules[#self._all_modules + 1] = module; end function trading:AsyncOperationFinished(cookie, success, message, message1, message2) local res = self._waiting_requests[cookie]; if res ~= nil then res.Finished = true; res.Success = success; res.Error = not success and message or nil; if not success then self:trace(string.format("Failed request %s", tostring(message))); end self._waiting_requests[cookie] = nil; elseif cookie == self._order_update_id then for _, order in ipairs(self._monitored_orders) do if order.RequestID == message2 then order.FixStatus = message1; end end elseif cookie == self._ids_start + 2 then if not success then if self._signaler ~= nil then self._signaler:Signal("Close order failed: " .. message); else self:trace("Close order failed: " .. message); end end end end function trading:calculateAmount() return self._amount; end function trading:getOppositeSide(side) if side == "B" then return "S"; end return "B"; end function trading:getId() for id = self._ids_start, self._ids_start + 100 do if self._waiting_requests[id] == nil then return id; end end return self._ids_start; end function trading:CreateStopOrder(trade, stop_rate, trailing) local valuemap = core.valuemap(); valuemap.Command = "CreateOrder"; valuemap.OfferID = trade.OfferID; valuemap.Rate = stop_rate; if trade.BS == "B" then valuemap.BuySell = "S"; else valuemap.BuySell = "B"; end local can_close = core.host:execute("getTradingProperty", "canCreateMarketClose", trade.Instrument, trade.AccountID); if can_close then valuemap.OrderType = "S"; valuemap.AcctID = trade.AccountID; valuemap.TradeID = trade.TradeID; valuemap.Quantity = trade.Lot; valuemap.TrailUpdatePips = trailing; else valuemap.OrderType = "SE" valuemap.AcctID = trade.AccountID; valuemap.NetQtyFlag = "Y" end local id = self:getId(); local success, msg = terminal:execute(id, valuemap); if not(success) then local message = "Failed create stop " .. msg; self:trace(message); if self._signaler ~= nil then self._signaler:Signal(message); end local res = {}; res.Finished = true; res.Success = false; res.Error = message; return res; end local res = {}; res.Finished = false; res.RequestID = msg; self._waiting_requests[id] = res; self._request_id[trade.TradeID] = msg; return res; end function trading:CreateLimitOrder(trade, limit_rate) local valuemap = core.valuemap(); valuemap.Command = "CreateOrder"; valuemap.OfferID = trade.OfferID; valuemap.Rate = limit_rate; if trade.BS == "B" then valuemap.BuySell = "S"; else valuemap.BuySell = "B"; end local can_close = core.host:execute("getTradingProperty", "canCreateMarketClose", trade.Instrument, trade.AccountID); if can_close then valuemap.OrderType = "L"; valuemap.AcctID = trade.AccountID; valuemap.TradeID = trade.TradeID; valuemap.Quantity = trade.Lot; else valuemap.OrderType = "LE" valuemap.AcctID = trade.AccountID; valuemap.NetQtyFlag = "Y" end local success, msg = terminal:execute(200, valuemap); if not(success) then terminal:alertMessage(trade.Instrument, limit_rate, "Failed create limit " .. msg, core.now()); else self._request_id[trade.TradeID] = msg; end end function trading:ChangeOrder(order, rate, trailing) local min_change = core.host:findTable("offers"):find("Instrument", order.Instrument).PointSize; if math.abs(rate - order.Rate) > min_change then self:trace(string.format("Changing an order to %s", tostring(rate))); -- stop exists local valuemap = core.valuemap(); valuemap.Command = "EditOrder"; valuemap.AcctID = order.AccountID; valuemap.OrderID = order.OrderID; valuemap.TrailUpdatePips = trailing; valuemap.Rate = rate; local id = self:getId(); local success, msg = terminal:execute(id, valuemap); if not(success) then local message = "Failed change order " .. msg; self:trace(message); if self._signaler ~= nil then self._signaler:Signal(message); end local res = {}; res.Finished = true; res.Success = false; res.Error = message; return res; end local res = {}; res.Finished = false; res.RequestID = msg; self._waiting_requests[id] = res; return res; end local res = {}; res.Finished = true; res.Success = true; return res; end function trading:IsLimitOrderType(order_type) return order_type == "L" or order_type == "LE" or order_type == "LT" or order_type == "LTE"; end function trading:IsStopOrderType(order_type) return order_type == "S" or order_type == "SE" or order_type == "ST" or order_type == "STE"; end function trading:FindLimitOrder(trade) local can_close = core.host:execute("getTradingProperty", "canCreateMarketClose", trade.Instrument, trade.AccountID); if can_close then local order_id; if trade.LimitOrderID ~= nil and trade.LimitOrderID ~= "" then order_id = trade.LimitOrderID; self:trace("Using limit order id from the trade"); elseif self._request_id[trade.TradeID] ~= nil then self:trace("Searching limit order by request id: " .. tostring(self._request_id[trade.TradeID])); local order = core.host:findTable("orders"):find("RequestID", self._request_id[trade.TradeID]); if order ~= nil then order_id = order.OrderID; self._request_id[trade.TradeID] = nil; end end -- Check that order is stil exist if order_id ~= nil then return core.host:findTable("orders"):find("OrderID", order_id); end else local enum = core.host:findTable("orders"):enumerator(); local row = enum:next(); while (row ~= nil) do if row.ContingencyType == 3 and IsLimitOrderType(row.Type) and self._used_limit_orders[row.OrderID] ~= true then self._used_limit_orders[row.OrderID] = true; return row; end row = enum:next(); end end return nil; end function trading:FindStopOrder(trade) local can_close = core.host:execute("getTradingProperty", "canCreateMarketClose", trade.Instrument, trade.AccountID); if can_close then local order_id; if trade.StopOrderID ~= nil and trade.StopOrderID ~= "" then order_id = trade.StopOrderID; self:trace("Using stop order id from the trade"); elseif self._request_id[trade.TradeID] ~= nil then self:trace("Searching stop order by request id: " .. tostring(self._request_id[trade.TradeID])); local order = core.host:findTable("orders"):find("RequestID", self._request_id[trade.TradeID]); if order ~= nil then order_id = order.OrderID; self._request_id[trade.TradeID] = nil; end end -- Check that order is stil exist if order_id ~= nil then return core.host:findTable("orders"):find("OrderID", order_id); end else local enum = core.host:findTable("orders"):enumerator(); local row = enum:next(); while (row ~= nil) do if row.ContingencyType == 3 and self:IsStopOrderType(row.Type) and self._used_stop_orders[row.OrderID] ~= true then self._used_stop_orders[row.OrderID] = true; return row; end row = enum:next(); end end return nil; end function trading:MoveStop(trade, stop_rate, trailing) local order = self:FindStopOrder(trade); if order == nil then if trailing == 0 then trailing = nil; end return self:CreateStopOrder(trade, stop_rate, trailing); else if trailing == 0 then if order.TrlMinMove ~= 0 then trailing = order.TrlMinMove else trailing = nil; end end return self:ChangeOrder(order, stop_rate, trailing); end end function trading:MoveLimit(trade, limit_rate) self:trace("Searching for a limit"); local order = self:FindLimitOrder(trade); if order == nil then self:trace("Limit order not found, creating a new one"); return self:CreateLimitOrder(trade, limit_rate); else return self:ChangeOrder(order, limit_rate); end end function trading:RemoveStop(trade) self:trace("Searching for a stop"); local order = self:FindStopOrder(trade); if order == nil then self:trace("No stop"); return nil; end self:trace("Deleting order"); return self:DeleteOrder(order); end function trading:RemoveLimit(trade) self:trace("Searching for a limit"); local order = self:FindLimitOrder(trade); if order == nil then self:trace("No limit"); return nil; end self:trace("Deleting order"); return self:DeleteOrder(order); end function trading:DeleteOrder(order) self:trace(string.format("Deleting order %s", order.OrderID)); local valuemap = core.valuemap(); valuemap.Command = "DeleteOrder"; valuemap.OrderID = order.OrderID; local id = self:getId(); local success, msg = terminal:execute(id, valuemap); if not(success) then local message = "Delete order failed: " .. msg; self:trace(message); if self._signaler ~= nil then self._signaler:Signal(message); end local res = {}; res.Finished = true; res.Success = false; res.Error = message; return res; end local res = {}; res.Finished = false; res.RequestID = msg; self._waiting_requests[id] = res; return res; end function trading:GetCustomID(qtxt) if qtxt == nil then return nil; end local metadata = self:GetMetadata(qtxt); if metadata == nil then return qtxt; end return metadata.CustomID; end function trading:FindOrder() local search = {}; function search:WhenCustomID(custom_id) self.CustomID = custom_id; return self; end function search:WhenSide(bs) self.Side = bs; return self; end function search:WhenInstrument(instrument) self.Instrument = instrument; return self; end function search:WhenAccountID(account_id) self.AccountID = account_id; return self; end function search:WhenRate(rate) self.Rate = rate; return self; end function search:WhenOrderType(orderType) self.OrderType = orderType; return self; end function search:Do(action) local enum = core.host:findTable("orders"):enumerator(); local row = enum:next(); while (row ~= nil) do if self:PassFilter(row) then action(row); end row = enum:next(); end end function search:PassFilter(row) return (row.Instrument == self.Instrument or not self.Instrument) and (row.BS == self.Side or not self.Side) and (row.AccountID == self.AccountID or not self.AccountID) and (trading:GetCustomID(row.QTXT) == self.CustomID or not self.CustomID) and (row.Rate == self.Rate or not self.Rate) and (row.Type == self.OrderType or not self.OrderType); end function search:All() local enum = core.host:findTable("orders"):enumerator(); local row = enum:next(); local orders = {}; while (row ~= nil) do if self:PassFilter(row) then orders[#orders + 1] = row; end row = enum:next(); end return orders; end function search:First() local enum = core.host:findTable("orders"):enumerator(); local row = enum:next(); while (row ~= nil) do if self:PassFilter(row) then return row; end row = enum:next(); end return nil; end return search; end function trading:FindTrade() local search = {}; function search:WhenCustomID(custom_id) self.CustomID = custom_id; return self; end function search:WhenSide(bs) self.Side = bs; return self; end function search:WhenInstrument(instrument) self.Instrument = instrument; return self; end function search:WhenAccountID(account_id) self.AccountID = account_id; return self; end function search:WhenOpen(open) self.Open = open; return self; end function search:WhenOpenOrderReqID(open_order_req_id) self.OpenOrderReqID = open_order_req_id; return self; end function search:Do(action) local enum = core.host:findTable("trades"):enumerator(); local row = enum:next(); while (row ~= nil) do if self:PassFilter(row) then action(row); end row = enum:next(); end end function search:PassFilter(row) return (row.Instrument == self.Instrument or not self.Instrument) and (row.BS == self.Side or not self.Side) and (row.AccountID == self.AccountID or not self.AccountID) and (trading:GetCustomID(row.QTXT) == self.CustomID or not self.CustomID) and (row.Open == self.Open or not self.Open) and (row.OpenOrderReqID == self.OpenOrderReqID or not self.OpenOrderReqID); end function search:All() local enum = core.host:findTable("trades"):enumerator(); local row = enum:next(); local trades = {}; while (row ~= nil) do if self:PassFilter(row) then trades[#trades + 1] = row; end row = enum:next(); end return trades; end function search:Any() local enum = core.host:findTable("trades"):enumerator(); local row = enum:next(); while (row ~= nil) do if self:PassFilter(row) then return true; end row = enum:next(); end return false; end function search:Count() local enum = core.host:findTable("trades"):enumerator(); local row = enum:next(); local count = 0; while (row ~= nil) do if self:PassFilter(row) then count = count + 1; end row = enum:next(); end return count; end function search:First() local enum = core.host:findTable("trades"):enumerator(); local row = enum:next(); while (row ~= nil) do if self:PassFilter(row) then return row; end row = enum:next(); end return nil; end return search; end function trading:FindClosedTrade() local search = {}; function search:WhenCustomID(custom_id) self.CustomID = custom_id; return self; end function search:WhenSide(bs) self.Side = bs; return self; end function search:WhenInstrument(instrument) self.Instrument = instrument; return self; end function search:WhenAccountID(account_id) self.AccountID = account_id; return self; end function search:WhenOpenOrderReqID(open_order_req_id) self.OpenOrderReqID = open_order_req_id; return self; end function search:PassFilter(row) return (row.Instrument == self.Instrument or not self.Instrument) and (row.BS == self.Side or not self.Side) and (row.AccountID == self.AccountID or not self.AccountID) and (trading:GetCustomID(row.QTXT) == self.CustomID or not self.CustomID) and (row.OpenOrderReqID == self.OpenOrderReqID or not self.OpenOrderReqID); end function search:Any() local enum = core.host:findTable("trades"):enumerator(); local row = enum:next(); while (row ~= nil) do if self:PassFilter(row) then return true; end row = enum:next(); end return false; end function search:All() local enum = core.host:findTable("trades"):enumerator(); local row = enum:next(); local trades = {}; while (row ~= nil) do if self:PassFilter(row) then trades[#trades + 1] = row; end row = enum:next(); end return trades; end function search:First() local enum = core.host:findTable("closed trades"):enumerator(); local row = enum:next(); while (row ~= nil) do if self:PassFilter(row) then return row; end row = enum:next(); end return nil; end return search; end function trading:ParialClose(trade, amount) -- not finished local account = core.host:findTable("accounts"):find("AccountID", trade.AccountID); local id = self:getId(); if account.Hedging == "Y" then local valuemap = core.valuemap(); valuemap.BuySell = trade.BS == "B" and "S" or "B"; valuemap.OrderType = "CM"; valuemap.OfferID = trade.OfferID; valuemap.AcctID = trade.AccountID; valuemap.TradeID = trade.TradeID; valuemap.Quantity = math.min(amount, trade.Lot); local success, msg = terminal:execute(id, valuemap); if success then local res = trading:ClosePartialSuccessResult(msg); self._waiting_requests[id] = res; return res; end return trading:ClosePartialFailResult(msg); end local valuemap = core.valuemap(); valuemap.OrderType = "OM"; valuemap.OfferID = trade.OfferID; valuemap.AcctID = trade.AccountID; valuemap.Quantity = math.min(amount, trade.Lot); valuemap.BuySell = trading:getOppositeSide(trade.BS); local success, msg = terminal:execute(id, valuemap); if success then local res = trading:ClosePartialSuccessResult(msg); self._waiting_requests[id] = res; return res; end return trading:ClosePartialFailResult(msg); end function trading:ClosePartialSuccessResult(msg) local res = {}; if msg ~= nil then res.Finished = false; else res.Finished = true; end res.RequestID = msg; function res:ToJSON() return trading:ObjectToJson(self); end return res; end function trading:ClosePartialFailResult(message) local res = {}; res.Finished = true; res.Success = false; res.Error = message; return res; end function trading:Close(trade) local valuemap = core.valuemap(); valuemap.BuySell = trade.BS == "B" and "S" or "B"; valuemap.OrderType = "CM"; valuemap.OfferID = trade.OfferID; valuemap.AcctID = trade.AccountID; valuemap.TradeID = trade.TradeID; valuemap.Quantity = trade.Lot; local success, msg = terminal:execute(self._ids_start + 3, valuemap); if not(success) then if self._signaler ~= nil then self._signaler:Signal("Close failed: " .. msg); end return false; end return true; end function trading:ObjectToJson(obj) local json = {}; function json:AddStr(name, value) local separator = ""; if self.str ~= nil then separator = ","; else self.str = ""; end self.str = self.str .. string.format("%s\"%s\":\"%s\"", separator, tostring(name), tostring(value)); end function json:AddNumber(name, value) local separator = ""; if self.str ~= nil then separator = ","; else self.str = ""; end self.str = self.str .. string.format("%s\"%s\":%f", separator, tostring(name), value or 0); end function json:AddBool(name, value) local separator = ""; if self.str ~= nil then separator = ","; else self.str = ""; end self.str = self.str .. string.format("%s\"%s\":%s", separator, tostring(name), value and "true" or "false"); end function json:ToString() return "{" .. (self.str or "") .. "}"; end local first = true; for idx,t in pairs(obj) do local stype = type(t) if stype == "number" then json:AddNumber(idx, t); elseif stype == "string" then json:AddStr(idx, t); elseif stype == "boolean" then json:AddBool(idx, t); elseif stype == "function" or stype == "table" then --do nothing else core.host:trace(tostring(idx) .. " " .. tostring(stype)); end end return json:ToString(); end function trading:CreateEntryOrderSuccessResult(msg) local res = {}; if msg ~= nil then res.Finished = false; else res.Finished = true; end res.RequestID = msg; function res:IsOrderExecuted() return self.FixStatus ~= nil and self.FixStatus == "F"; end function res:GetOrder() if self._order == nil then self._order = core.host:findTable("orders"):find("RequestID", self.RequestID); if self._order == nil then return nil; end end if not self._order:refresh() then return nil; end return self._order; end function res:GetTrade() if self._trade == nil then self._trade = core.host:findTable("trades"):find("OpenOrderReqID", self.RequestID); if self._trade == nil then return nil; end end if not self._trade:refresh() then return nil; end return self._trade; end function res:GetClosedTrade() if self._closed_trade == nil then self._closed_trade = core.host:findTable("closed trades"):find("OpenOrderReqID", self.RequestID); if self._closed_trade == nil then return nil; end end if not self._closed_trade:refresh() then return nil; end return self._closed_trade; end function res:ToJSON() return trading:ObjectToJson(self); end return res; end function trading:CreateEntryOrderFailResult(message) local res = {}; res.Finished = true; res.Success = false; res.Error = message; function res:GetOrder() return nil; end function res:GetClosedTrade() return nil; end function res:IsOrderExecuted() return false; end return res; end function trading:EntryOrder(instrument) local builder = {}; builder.Offer = core.host:findTable("offers"):find("Instrument", instrument); builder.Instrument = instrument; builder.Parent = self; builder.valuemap = core.valuemap(); builder.valuemap.Command = "CreateOrder"; builder.valuemap.OfferID = builder.Offer.OfferID; builder.valuemap.AcctID = self._account; function builder:_GetBaseUnitSize() if self._base_size == nil then self._base_size = core.host:execute("getTradingProperty", "baseUnitSize", self.Instrument, self.valuemap.AcctID); end return self._base_size; end function builder:SetAccountID(accountID) self.valuemap.AcctID = accountID; return self; end function builder:SetDefaultAmount() self.valuemap.Quantity = self.Parent:calculateAmount() * self:_GetBaseUnitSize(); return self; end function builder:SetAmount(amount) self.valuemap.Quantity = amount * self:_GetBaseUnitSize(); return self; end function builder:SetPercentOfEquityAmount(percent) self._PercentOfEquityAmount = percent; return self; end function builder:SetSide(buy_sell) self.valuemap.BuySell = buy_sell; return self; end function builder:SetRate(rate) if self.valuemap.BuySell == "B" then self.valuemap.OrderType = self.Offer.Ask > rate and "LE" or "SE"; else self.valuemap.OrderType = self.Offer.Bid > rate and "SE" or "LE"; end self.valuemap.Rate = rate; return self; end function builder:SetPipLimit(limit_type, limit) self.valuemap.PegTypeLimit = limit_type or "M"; self.valuemap.PegPriceOffsetPipsLimit = self.valuemap.BuySell == "B" and limit or -limit; return self; end function builder:SetLimit(limit) self.valuemap.RateLimit = limit; return self; end function builder:SetPipStop(stop_type, stop, trailing_stop) self.valuemap.PegTypeStop = stop_type or "O"; self.valuemap.PegPriceOffsetPipsStop = self.valuemap.BuySell == "B" and -stop or stop; self.valuemap.TrailStepStop = trailing_stop; return self; end function builder:SetStop(stop, trailing_stop) self.valuemap.RateStop = stop; self.valuemap.TrailStepStop = trailing_stop; return self; end function builder:UseDefaultCustomId() self.valuemap.CustomID = self.Parent.CustomID; return self; end function builder:SetCustomID(custom_id) self.valuemap.CustomID = custom_id; return self; end function builder:GetValueMap() return self.valuemap; end function builder:AddMetadata(id, val) if self._metadata == nil then self._metadata = {}; end self._metadata[id] = val; return self; end function builder:Execute() local desc = string.format("Creating %s %s for %s at %f", self.valuemap.BuySell, self.valuemap.OrderType, self.Instrument, self.valuemap.Rate); if self._metadata ~= nil then self._metadata.CustomID = self.valuemap.CustomID; self.valuemap.CustomID = trading:ObjectToJson(self._metadata); end if self.valuemap.RateStop ~= nil then desc = desc .. " stop " .. self.valuemap.RateStop; end if self.valuemap.RateLimit ~= nil then desc = desc .. " limit " .. self.valuemap.RateLimit; end self.Parent:trace(desc); if self._PercentOfEquityAmount ~= nil then local equity = core.host:findTable("accounts"):find("AccountID", self.valuemap.AcctID).Equity; local affordable_loss = equity * self._PercentOfEquityAmount / 100.0; local stop = math.abs(self.valuemap.RateStop - self.valuemap.Rate) / self.Offer.PointSize; local possible_loss = self.Offer.PipCost * stop; self.valuemap.Quantity = math.floor(affordable_loss / possible_loss) * self:_GetBaseUnitSize(); end for _, module in pairs(self.Parent._all_modules) do if module.BlockOrder ~= nil and module:BlockOrder(self.valuemap) then self.Parent:trace("Creation of order blocked by " .. module.Name); return trading:CreateEntryOrderFailResult("Creation of order blocked by " .. module.Name); end end if not self.Parent._allow_trade then local message = string.format("%s signal for %s", self.valuemap.BuySell, self.Instrument); self.Parent:trace(message); if self.Parent._signaler ~= nil then self.Parent._signaler:Signal(message); end return trading:CreateEntryOrderSuccessResult(); end for _, module in pairs(self.Parent._all_modules) do if module.OnOrder ~= nil then module:OnOrder(self.valuemap); end end local id = self.Parent:getId(); local success, msg = terminal:execute(id, self.valuemap); if not(success) then local message = "Open order failed: " .. msg; self.Parent:trace(message); if self.Parent._signaler ~= nil then self.Parent._signaler:Signal(message); end return trading:CreateEntryOrderFailResult(message); end local res = trading:CreateEntryOrderSuccessResult(msg); self.Parent._waiting_requests[id] = res; return res; end return builder; end function trading:StoreMarketOrderResults(res) local str = "["; for i, t in ipairs(res) do local json = t:ToJSON(); if str == "[" then str = str .. json; else str = str .. "," .. json; end end return str .. "]"; end function trading:RestoreMarketOrderResults(str) local results = {}; local position = 2; local result; while (position < str:len()) do local ch = string.sub(str, position, position); if ch == "{" then result = trading:CreateMarketOrderSuccessResult(); position = position + 1; elseif ch == "}" then results[#results + 1] = result; result = nil; position = position + 1; elseif ch == "," then position = position + 1; else local name, value = string.match(str, '"([^"]+)":("?[^,}]+"?)', position); if value == "false" then result[name] = false; position = position + name:len() + 8; elseif value == "true" then result[name] = true; position = position + name:len() + 7; else if string.sub(value, 1, 1) == "\"" then result[name] = value; value:sub(2, value:len() - 1); position = position + name:len() + 3 + value:len(); else result[name] = tonumber(value); position = position + name:len() + 3 + value:len(); end end end end return results; end function trading:CreateMarketOrderSuccessResult(msg) local res = {}; if msg ~= nil then res.Finished = false; else res.Finished = true; end res.RequestID = msg; function res:GetTrade() if self._trade == nil then self._trade = core.host:findTable("trades"):find("OpenOrderReqID", self.RequestID); if self._trade == nil then return nil; end end if not self._trade:refresh() then return nil; end return self._trade; end function res:GetClosedTrade() if self._closed_trade == nil then self._closed_trade = core.host:findTable("closed trades"):find("OpenOrderReqID", self.RequestID); if self._closed_trade == nil then return nil; end end if not self._closed_trade:refresh() then return nil; end return self._closed_trade; end function res:ToJSON() local json = {}; function json:AddStr(name, value) local separator = ""; if self.str ~= nil then separator = ","; else self.str = ""; end self.str = self.str .. string.format("%s\"%s\":\"%s\"", separator, tostring(name), tostring(value)); end function json:AddNumber(name, value) local separator = ""; if self.str ~= nil then separator = ","; else self.str = ""; end self.str = self.str .. string.format("%s\"%s\":%f", separator, tostring(name), value or 0); end function json:AddBool(name, value) local separator = ""; if self.str ~= nil then separator = ","; else self.str = ""; end self.str = self.str .. string.format("%s\"%s\":%s", separator, tostring(name), value and "true" or "false"); end function json:ToString() return "{" .. (self.str or "") .. "}"; end local first = true; for idx,t in pairs(self) do local stype = type(t) if stype == "number" then json:AddNumber(idx, t); elseif stype == "string" then json:AddStr(idx, t); elseif stype == "boolean" then json:AddBool(idx, t); elseif stype == "function" or stype == "table" then --do nothing else core.host:trace(tostring(idx) .. " " .. tostring(stype)); end end return json:ToString(); end return res; end function trading:CreateMarketOrderFailResult(message) local res = {}; res.Finished = true; res.Success = false; res.Error = message; function res:GetTrade() return nil; end return res; end function trading:MarketOrder(instrument) local builder = {}; local offer = core.host:findTable("offers"):find("Instrument", instrument); builder.Instrument = instrument; builder.Parent = self; builder.valuemap = core.valuemap(); builder.valuemap.Command = "CreateOrder"; builder.valuemap.OrderType = "OM"; builder.valuemap.OfferID = offer.OfferID; builder.valuemap.AcctID = self._account; function builder:SetAccountID(accountID) self.valuemap.AcctID = accountID; return self; end function builder:SetAmount(amount) local base_size = core.host:execute("getTradingProperty", "baseUnitSize", self.Instrument, self.valuemap.AcctID); self.valuemap.Quantity = amount * base_size; return self; end function builder:SetDefaultAmount() local base_size = core.host:execute("getTradingProperty", "baseUnitSize", self.Instrument, self.Parent._account); self.valuemap.Quantity = self.Parent:calculateAmount() * base_size; return self; end function builder:SetSide(buy_sell) self.valuemap.BuySell = buy_sell; return self; end function builder:SetPipLimit(limit_type, limit) self.valuemap.PegTypeLimit = limit_type or "O"; self.valuemap.PegPriceOffsetPipsLimit = self.valuemap.BuySell == "B" and limit or -limit; return self; end function builder:SetLimit(limit) self.valuemap.RateLimit = limit; return self; end function builder:SetPipStop(stop_type, stop, trailing_stop) self.valuemap.PegTypeStop = stop_type or "O"; self.valuemap.PegPriceOffsetPipsStop = self.valuemap.BuySell == "B" and -stop or stop; self.valuemap.TrailStepStop = trailing_stop; return self; end function builder:SetStop(stop, trailing_stop) self.valuemap.RateStop = stop; self.valuemap.TrailStepStop = trailing_stop; return self; end function builder:SetCustomID(custom_id) self.valuemap.CustomID = custom_id; return self; end function builder:GetValueMap() return self.valuemap; end function builder:AddMetadata(id, val) if self._metadata == nil then self._metadata = {}; end self._metadata[id] = val; return self; end function builder:Execute() self.Parent:trace(string.format("Creating %s OM for %s", self.valuemap.BuySell, self.Instrument)); if self._metadata ~= nil then self._metadata.CustomID = self.valuemap.CustomID; self.valuemap.CustomID = trading:ObjectToJson(self._metadata); end for _, module in pairs(self.Parent._all_modules) do if module.BlockOrder ~= nil and module:BlockOrder(self.valuemap) then self.Parent:trace("Creation of order blocked by " .. module.Name); return trading:CreateMarketOrderFailResult("Creation of order blocked by " .. module.Name); end end if not self.Parent._allow_trade then local message = string.format("%s signal for %s", self.valuemap.BuySell, self.Instrument); self.Parent:trace(message); if self.Parent._signaler ~= nil then self.Parent._signaler:Signal(message); end return trading:CreateMarketOrderSuccessResult(); end for _, module in pairs(self.Parent._all_modules) do if module.OnOrder ~= nil then module:OnOrder(self.valuemap); end end local id = self.Parent:getId(); local success, msg = terminal:execute(id, self.valuemap); if not(success) then local message = "Open order failed: " .. msg; self.Parent:trace(message); if self.Parent._signaler ~= nil then self.Parent._signaler:Signal(message); end return trading:CreateMarketOrderFailResult(message); end local res = trading:CreateMarketOrderSuccessResult(msg); self.Parent._waiting_requests[id] = res; return res; end return builder; end function trading:JsonToObject(json) local position = 1; local result; local results; while (position < json:len() + 1) do local ch = string.sub(json, position, position); if ch == "{" then result = {}; position = position + 1; elseif ch == "}" then if results ~= nil then position = position + 1; results[#results + 1] = result; else return result; end elseif ch == "," then position = position + 1; elseif ch == "[" then position = position + 1; results = {}; elseif ch == "]" then return results; else if result == nil then return nil; end local name, value = string.match(json, '"([^"]+)":("?[^,}]+"?)', position); if value == "false" then result[name] = false; position = position + name:len() + 8; elseif value == "true" then result[name] = true; position = position + name:len() + 7; else if string.sub(value, 1, 1) == "\"" then result[name] = value; value:sub(2, value:len() - 1); position = position + name:len() + 3 + value:len(); else result[name] = tonumber(value); position = position + name:len() + 3 + value:len(); end end end end return nil; end function trading:GetMetadata(qtxt) if qtxt == "" then return nil; end local position = 1; local result; while (position < qtxt:len() + 1) do local ch = string.sub(qtxt, position, position); if ch == "{" then result = {}; position = position + 1; elseif ch == "}" then return result; elseif ch == "," then position = position + 1; else if result == nil then return nil; end local name, value = string.match(qtxt, '"([^"]+)":("?[^,}]+"?)', position); if value == "false" then result[name] = false; position = position + name:len() + 8; elseif value == "true" then result[name] = true; position = position + name:len() + 7; else if string.sub(value, 1, 1) == "\"" then result[name] = value; value:sub(2, value:len() - 1); position = position + name:len() + 3 + value:len(); else result[name] = tonumber(value); position = position + name:len() + 3 + value:len(); end end end end return nil; end function trading:GetTradeMetadata(trade) return self:GetMetadata(trade.QTXT); end trading:RegisterModule(Modules);