using EC.Util.CameraSDK;
using System;

namespace JiLinApp.Docking.Ptz;

public class PtzCmd
{
    public static PtzControlType GetControlType(string ctrlStr)
    {
        return ctrlStr switch
        {
            "PelcoD" => PtzControlType.PelcoD,
            "PelcoP" => PtzControlType.PelcoP,
            "HikSdk" => PtzControlType.HikSdk,
            _ => PtzControlType.None
        };
    }

    public static PtzCmdType GetCmdType(string cmdStr)
    {
        return cmdStr switch
        {
            "Top" => PtzCmdType.Top,
            "Down" => PtzCmdType.Down,
            "Left" => PtzCmdType.Left,
            "Right" => PtzCmdType.Right,
            "TopLeft" => PtzCmdType.LeftTop,
            "TopRight" => PtzCmdType.RightTop,
            "DownLeft" => PtzCmdType.LeftDown,
            "DownRight" => PtzCmdType.RightDown,
            "Stop" => PtzCmdType.Stop,
            "AutoStart" => PtzCmdType.AutoStart,
            "AutoStop" => PtzCmdType.AutoStop,
            "PresetSet" => PtzCmdType.PresetSet,
            "PresetClear" => PtzCmdType.PresetClear,
            "PresetGoto" => PtzCmdType.PresetGoto,
            _ => PtzCmdType.None
        };
    }

    /// <summary>
    /// GetPelcoDCmd
    /// GetPelcoPCmd
    /// DCamearCmd
    /// </summary>
    /// <param name="ctrlType"></param>
    /// <param name="cmdType"></param>
    /// <param name="args"></param>
    /// <returns></returns>
    public static byte[] GetCmd(PtzControlType ctrlType, PtzCmdType cmdType, object[] args = null)
    {
        byte[] cmd = ctrlType switch
        {
            PtzControlType.PelcoD => GetPelcoDCmd(cmdType, args),
            PtzControlType.PelcoP => GetPelcoPCmd(cmdType, args),
            PtzControlType.DCamera => GetDCameraCmd(cmdType, args),
            _ => Array.Empty<byte>(),
        };
        return cmd;
    }

    public static byte[] GetPelcoDCmd(PtzCmdType cmdType, object[] args)
    {
        uint addr = (byte)args[0];
        uint panSpeed = 0x2f;
        uint tiltSpeed = (uint)(PelcoD.TiltSpeedMax + PelcoD.TiltSpeedMin) / 2;
        byte[] cmd = cmdType switch
        {
            PtzCmdType.Left => PelcoD.CameraPan(addr, PelcoD.Pan.Left, panSpeed),
            PtzCmdType.Right => PelcoD.CameraPan(addr, PelcoD.Pan.Right, panSpeed),
            PtzCmdType.Top => PelcoD.CameraTilt(addr, PelcoD.Tilt.Up, tiltSpeed),
            PtzCmdType.Down => PelcoD.CameraTilt(addr, PelcoD.Tilt.Down, tiltSpeed),
            PtzCmdType.LeftTop => PelcoD.CameraPan(addr, PelcoD.Pan.LeftUp, panSpeed),
            PtzCmdType.LeftDown => PelcoD.CameraPan(addr, PelcoD.Pan.LeftDown, panSpeed),
            PtzCmdType.RightTop => PelcoD.CameraPan(addr, PelcoD.Pan.RightUp, panSpeed),
            PtzCmdType.RightDown => PelcoD.CameraPan(addr, PelcoD.Pan.RightDown, panSpeed),
            PtzCmdType.Stop => PelcoD.CameraStop(addr),
            PtzCmdType.AutoStart => PelcoD.CameraScan(addr, PelcoD.Scan.Auto),
            PtzCmdType.AutoStop => PelcoD.CameraScan(addr, PelcoD.Scan.Manual),
            PtzCmdType.PresetGoto => PelcoD.Preset(addr, PelcoD.PresetAction.Goto, (byte)args[1]),
            _ => Array.Empty<byte>(),
        };
        return cmd;
    }

    public static byte[] GetPelcoPCmd(PtzCmdType cmdType, object[] args)
    {
        uint addr = (byte)args[0];
        uint panSpeed = (uint)(PelcoP.PanSpeedMax + PelcoP.PanSpeedMin) / 2;
        uint tiltSpeed = (uint)(PelcoP.TiltSpeedMax + PelcoP.TiltSpeedMin) / 2;
        byte[] cmd = cmdType switch
        {
            PtzCmdType.Left => PelcoP.CameraPan(addr, PelcoP.Pan.Left, panSpeed),
            PtzCmdType.Right => PelcoP.CameraPan(addr, PelcoP.Pan.Right, panSpeed),
            PtzCmdType.Top => PelcoP.CameraTilt(addr, PelcoP.Tilt.Up, tiltSpeed),
            PtzCmdType.Down => PelcoP.CameraTilt(addr, PelcoP.Tilt.Down, tiltSpeed),
            PtzCmdType.LeftTop => PelcoP.CameraPanTilt(addr, PelcoP.Pan.Left, panSpeed, PelcoP.Tilt.Up, tiltSpeed),
            PtzCmdType.LeftDown => PelcoP.CameraPanTilt(addr, PelcoP.Pan.Left, panSpeed, PelcoP.Tilt.Down, tiltSpeed),
            PtzCmdType.RightTop => PelcoP.CameraPanTilt(addr, PelcoP.Pan.Right, panSpeed, PelcoP.Tilt.Up, tiltSpeed),
            PtzCmdType.RightDown => PelcoP.CameraPanTilt(addr, PelcoP.Pan.Right, panSpeed, PelcoP.Tilt.Down, tiltSpeed),
            PtzCmdType.Stop => PelcoP.CameraStop(addr),
            PtzCmdType.AutoStart => PelcoP.AutoScan(addr, PelcoP.Action.Start),
            PtzCmdType.AutoStop => PelcoP.AutoScan(addr, PelcoP.Action.Stop),
            PtzCmdType.PresetGoto => PelcoP.Preset(addr, PelcoP.PresetAction.Goto, (byte)args[1]),
            _ => Array.Empty<byte>(),
        };
        return cmd;
    }

    public static byte[] GetDCameraCmd(PtzCmdType cmdType, object[] args)
    {
        double speed = (DCamera.SpeedMax + DCamera.SpeedMin) / 2;
        byte[] cmd = cmdType switch
        {
            PtzCmdType.Left => DCamera.Left(speed),
            PtzCmdType.Right => DCamera.Right(speed),
            PtzCmdType.Top => DCamera.Up(speed),
            PtzCmdType.Down => DCamera.Down(speed),
            PtzCmdType.LeftTop => DCamera.LeftUp(speed, speed),
            PtzCmdType.LeftDown => DCamera.LeftDown(speed, speed),
            PtzCmdType.RightTop => DCamera.RightUp(speed, speed),
            PtzCmdType.RightDown => DCamera.RightDown(speed, speed),
            PtzCmdType.Stop => DCamera.Stop(),
            //PtzCmdType.PresetGoto => DCamera.Up(speed),
            _ => Array.Empty<byte>(),
        };
        return cmd;
    }

    public static void HikPtzMove(ref HiKSDK sdk, PtzCmdType cmdType, uint[] args)
    {
        if (sdk == null || args == null) return;
        uint[] arr = new uint[args.Length + 1];
        args.CopyTo(arr, 1);
        switch (cmdType)
        {
            case PtzCmdType.Left:
                arr[0] = HiKOriSDK.PAN_LEFT;
                sdk.PtzMove(arr);
                break;

            case PtzCmdType.Right:
                arr[0] = HiKOriSDK.PAN_RIGHT;
                sdk.PtzMove(arr);
                break;

            case PtzCmdType.Top:
                arr[0] = HiKOriSDK.TILT_UP;
                sdk.PtzMove(arr);
                break;

            case PtzCmdType.Down:
                arr[0] = HiKOriSDK.TILT_DOWN;
                sdk.PtzMove(arr);
                break;

            case PtzCmdType.LeftTop:
                arr[0] = HiKOriSDK.UP_LEFT;
                sdk.PtzMove(arr);
                break;

            case PtzCmdType.LeftDown:
                arr[0] = HiKOriSDK.DOWN_LEFT;
                sdk.PtzMove(arr);
                break;

            case PtzCmdType.RightTop:
                arr[0] = HiKOriSDK.UP_RIGHT;
                sdk.PtzMove(arr);
                break;

            case PtzCmdType.RightDown:
                arr[0] = HiKOriSDK.DOWN_RIGHT;
                sdk.PtzMove(arr);
                break;

            case PtzCmdType.AutoStart:
                arr[0] = HiKOriSDK.PAN_AUTO;
                sdk.PtzMove(arr);
                break;

            case PtzCmdType.PresetGoto:
                arr[0] = HiKOriSDK.GOTO_PRESET;
                sdk.PtzPreset(arr);
                break;

            default:
                break;
        }
    }
}

public enum PtzControlType
{
    PelcoD,
    PelcoP,
    DCamera,
    HikSdk,
    None,
}

public enum PtzCmdType
{
    Top,
    Down,
    Left,
    Right,
    LeftTop,
    LeftDown,
    RightTop,
    RightDown,
    Stop,
    AutoStart,
    AutoStop,
    PresetSet,
    PresetClear,
    PresetGoto,
    None
}