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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
namespace SimpleHmi.PlcService
{
public class DummyPlcService : IPlcService
{
public ConnectionStates ConnectionState { get; private set; }
public bool HighLimit { get; private set; }
public int InletPumpSpeed { get; private set; }
public bool LowLimit { get; private set; }
public int OutletPumpSpeed { get; private set; }
public bool PumpState { get; private set; }
public TimeSpan ScanTime { get; private set; }
public int TankLevel { get; private set; }
public event EventHandler ValuesRefreshed;
private System.Timers.Timer _timer;
private DateTime _lastScanTime;
public DummyPlcService()
{
_timer = new System.Timers.Timer();
_timer.Elapsed += OnTimerElapsed;
_timer.Interval = 100;
InletPumpSpeed = 3;
OutletPumpSpeed = 2;
}
private void OnTimerElapsed(object sender, System.Timers.ElapsedEventArgs e)
{
_timer.Stop();
TankLevel -= OutletPumpSpeed;
TankLevel = Math.Max(TankLevel, 0);
if (PumpState)
{
TankLevel += InletPumpSpeed;
TankLevel = Math.Min(TankLevel, 100);
}
LowLimit = TankLevel < 10;
HighLimit = TankLevel > 90;
ScanTime = DateTime.Now - _lastScanTime;
OnValuesRefreshed();
_timer.Start();
_lastScanTime = DateTime.Now;
}
public void Connect(string ipAddress, int rack, int slot)
{
ConnectionState = ConnectionStates.Connecting;
OnValuesRefreshed();
ConnectionState = ConnectionStates.Online;
_timer.Start();
}
public void Disconnect()
{
ConnectionState = ConnectionStates.Offline;
OnValuesRefreshed();
_timer.Stop();
}
public Task WriteSpeedInletPump(short speed)
{
return Task.Run(() => { InletPumpSpeed = speed; });
}
public Task WriteSpeedOutletPump(short speed)
{
return Task.Run(() => { OutletPumpSpeed = speed; });
}
public Task WriteStart()
{
return Task.Run(() => {
PumpState = true;
});
}
public Task WriteStop()
{
return Task.Run(() => {
PumpState = false;
});
}
private void OnValuesRefreshed()
{
ValuesRefreshed?.Invoke(this, new EventArgs());
}
}
}