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118 | using System;
using cAlgo.API;
using cAlgo.API.Collections;
using cAlgo.API.Indicators;
using cAlgo.API.Internals;
using System.Linq;
using System.Text.Json;
using System.Text.Json.Nodes;
namespace cAlgo.Plugins
{
[Plugin(AccessRights = AccessRights.None)]
public class BacktestingInPluginsSample : Plugin
{
// Declaring the necessary UI elements
// and the cBot (RobotType) selected in the ComboBox
private Grid _grid;
private ComboBox _cBotsComboBox;
private Button _startBacktestingButton;
private TextBlock _resultsTextBlock;
private RobotType _selectedRobotType;
protected override void OnStart()
{
// Initialising and structuring the UI elements
_grid = new Grid(3, 1);
_cBotsComboBox = new ComboBox();
_startBacktestingButton = new Button
{
BackgroundColor = Color.Green,
CornerRadius = new CornerRadius(5),
Text = "Start Backtesting",
};
_resultsTextBlock = new TextBlock
{
HorizontalAlignment = HorizontalAlignment.Center,
VerticalAlignment = VerticalAlignment.Center,
Text = "Select a cBot...",
};
_grid.AddChild(_cBotsComboBox, 0, 0);
_grid.AddChild(_startBacktestingButton, 1, 0);
_grid.AddChild(_resultsTextBlock, 2, 0);
var block = Asp.SymbolTab.AddBlock("Backtesting Plugin");
block.Child = _grid;
// Populating the ComboBox with existing cBots
PopulateCBotsComboBox();
// Assigning event handlers to the Button.Click,
// ComboBox.SelectedItemChanged, and Backtesting.Completed events
_startBacktestingButton.Click += StartBacktestingButton_Click;
_cBotsComboBox.SelectedItemChanged += CBotsComboBox_SelectedItemChanged;
Backtesting.Completed += Backtesting_Completed;
}
protected void StartBacktestingButton_Click(ButtonClickEventArgs obj)
{
// Initialising and configuring the backtesting settings
var backtestingSettings = new BacktestingSettings
{
DataMode = BacktestingDataMode.M1,
StartTimeUtc = new DateTime(2023, 6, 1),
EndTimeUtc = DateTime.UtcNow,
Balance = 10000,
};
// Starting backtesting on EURUSD h1
Backtesting.Start(_selectedRobotType, "EURUSD", TimeFrame.Hour, backtestingSettings);
// Disabling other controls and changing
// the text inside the TextBlock
_cBotsComboBox.IsEnabled = false;
_startBacktestingButton.IsEnabled = false;
_resultsTextBlock.Text = "Backtesting in progress...";
}
protected void PopulateCBotsComboBox()
{
// Iterating over the AlgoRegistry and
// getting the names of all installed cBots
foreach (var robotType in AlgoRegistry.OfType<RobotType>())
{
_cBotsComboBox.AddItem(robotType.Name);
}
}
protected void Backtesting_Completed(BacktestingCompletedEventArgs obj)
{
// Attaining the JSON results of backtesting
string jsonResults = obj.JsonReport;
// Converting the JSON string into a JsonNode
JsonNode resultsNode = JsonNode.Parse(jsonResults);
// Attaining the ROI and net profit from backtesting results
_resultsTextBlock.Text = $"ROI: {resultsNode["main"]["roi"]}\nNet Profit: {resultsNode["main"]["netProfit"]}";
// Re-enabling controls after backteting is finished
_cBotsComboBox.IsEnabled = true;
_startBacktestingButton.IsEnabled = true;
}
protected void CBotsComboBox_SelectedItemChanged(ComboBoxSelectedItemChangedEventArgs obj)
{
// Updading the variable to always contain
// the cBto selected in the ComboBox
_selectedRobotType = AlgoRegistry.Get(obj.SelectedItem) as RobotType;
}
}
}
|
