using System.Runtime.InteropServices;

namespace BmsMonitor.App.Can;

internal static class ControlCanNative
{
    internal const uint VciUsbCan2 = 4;
    internal const uint StatusOk = 1;

    [StructLayout(LayoutKind.Sequential)]
    internal struct VciInitConfig
    {
        public uint AccCode;
        public uint AccMask;
        public uint Reserved;
        public byte Filter;
        public byte Timing0;
        public byte Timing1;
        public byte Mode;
    }

    [StructLayout(LayoutKind.Sequential, Pack = 1)]
    internal struct VciCanObj
    {
        public uint Id;
        public uint TimeStamp;
        public byte TimeFlag;
        public byte SendType;
        public byte RemoteFlag;
        public byte ExternFlag;
        public byte DataLen;
        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 8)] public byte[] Data;
        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 3)] public byte[] Reserved;
    }

    [DllImport("ControlCAN.dll", CallingConvention = CallingConvention.StdCall)]
    internal static extern uint VCI_OpenDevice(uint deviceType, uint deviceIndex, uint reserved);

    [DllImport("ControlCAN.dll", CallingConvention = CallingConvention.StdCall)]
    internal static extern uint VCI_CloseDevice(uint deviceType, uint deviceIndex);

    [DllImport("ControlCAN.dll", CallingConvention = CallingConvention.StdCall)]
    internal static extern uint VCI_InitCAN(uint deviceType, uint deviceIndex, uint canIndex, ref VciInitConfig config);

    [DllImport("ControlCAN.dll", CallingConvention = CallingConvention.StdCall)]
    internal static extern uint VCI_StartCAN(uint deviceType, uint deviceIndex, uint canIndex);

    [DllImport("ControlCAN.dll", CallingConvention = CallingConvention.StdCall)]
    internal static extern uint VCI_ResetCAN(uint deviceType, uint deviceIndex, uint canIndex);

    [DllImport("ControlCAN.dll", CallingConvention = CallingConvention.StdCall)]
    internal static extern uint VCI_Receive(uint deviceType, uint deviceIndex, uint canIndex,
        [Out] VciCanObj[] receive, uint length, int waitTime);
}