using Avalonia.Controls;
using Avalonia.Input;
using Avalonia.Interactivity;
using Avalonia.Platform;
using Avalonia.Threading;
using EC.Util.CameraSDK;
using EC.Util.Platform;
using JiLinApp.Core.Avalonia;
using JiLinApp.Docking.Ptz;
using System;
using System.Collections.Generic;
using System.Runtime.InteropServices;

namespace JiLinApp.Components;

public partial class CameraRealPlay : Window
{
    #region

    private ICameraSdk? CameraSdk { get; set; }

    #endregion

    public CameraRealPlay()
    {
        InitializeComponent();

        if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
        {
            IPlatformHandle? pfHandle = TryGetPlatformHandle();
            if (pfHandle != null) WinUtil.DisableMinMaximizeButton(pfHandle.Handle);
        }
        else if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux) && PlatformImpl != null)
        {
            IntPtr _display = ControlsUtil.GetDisplay(PlatformImpl);
            IntPtr _handle = ControlsUtil.GetHandle(PlatformImpl);
            IntPtr _atom = ControlsUtil.GetAtom(PlatformImpl, "_MOTIF_WM_HINTS");
            LinuxUtil.DisableMinMaximizeButton(_display, _handle, _atom);
        }

        //绑定云台响应事件
        List<Button> btnList = new();
        ControlsUtil.FindChild(PtzCtrlPanel, ref btnList);
        foreach (var btn in btnList)
        {
            if ((btn.Name ?? string.Empty).StartsWith("goto", StringComparison.OrdinalIgnoreCase)) btn.Click += GotoBtn_Click;
            else
            {
                btn.AddHandler(PointerPressedEvent, PtzBtn_MouseDown, RoutingStrategies.Tunnel);
                btn.AddHandler(PointerReleasedEvent, PtzBtn_MouseUp, RoutingStrategies.Tunnel);
            }
        }
        // 初始化预置点 id 下拉框
        for (int i = 1; i <= 10; i++) PresetIdCbx.Items.Add(new ComboBoxItem { Content = i });
        PresetIdCbx.SelectedIndex = 0;
    }

    public CameraRealPlay(ICameraSdk cameraSdk) : this()
    {
        SetCameraSdk(cameraSdk);
    }

    #region Inner

    public void SetCameraSdk(ICameraSdk cameraSdk)
    {
        CameraSdk = cameraSdk;
    }

    public IntPtr GetPlayerHwnd()
    {
        return player.Handle;
    }

    public bool IsClosed { get; private set; }

    protected override void OnClosing(WindowClosingEventArgs e)
    {
        base.OnClosing(e);
        IsClosed = true;
        StopPlay();
    }

    #endregion Inner

    #region Play

    public void StartPlay()
    {
        if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
        {
            if (CameraSdk is HiKSdk hikSdk)
            {
                if (RealplayPort < 0)
                {
                    int nPort = -1;
                    bool ret = PlayCtrlSdk.PlayM4_GetPort(ref nPort);
                    if (!ret) PlayCtrlSdk.BuildException(hikSdk, nPort);
                    RealplayPort = nPort;
                }
                hikSdk.RealDataCallBack = HikRealDataCallBack;
            }
            else if (CameraSdk is DaHuaSdk dhSdk)
            {
                if (RealplayPort < 0)
                {
                    int nPort = -1;
                    DhPlaySdk.PLAY_GetFreePort(ref nPort);
                    DhPlaySdk.PLAY_SetStreamOpenMode(nPort, 0);
                    DhPlaySdk.PLAY_OpenStream(nPort, 0, 0, 3 * 1024 * 1024);
                    if (!DhPlaySdk.PLAY_Play(nPort, GetPlayerHwnd())) DhPlaySdk.BuildException(dhSdk, nPort);
                    RealplayPort = nPort;
                }
                dhSdk.RealDataCallBack = DaHuaRealDataCallBack;
            }
            else if (CameraSdk is YuShiSdk ysSdk)
            {
            }
        }
        CameraSdk?.StartPlay(GetPlayerHwnd());
    }

    public void StopPlay()
    {
        Dispatcher.UIThread.InvokeAsync(() => CameraSdk?.StopPlay());
        if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
        {
            if (CameraSdk is HiKSdk hikSdk)
            {
                if (RealplayPort >= 0)
                {
                    PlayCtrlSdk.PlayM4_Stop(RealplayPort);
                    PlayCtrlSdk.PlayM4_CloseStream(RealplayPort);
                    PlayCtrlSdk.PlayM4_FreePort(RealplayPort);
                    RealplayPort = -1;
                }
            }
            else if (CameraSdk is DaHuaSdk dhSdk)
            {
                if (RealplayPort >= 0)
                {
                    DhPlaySdk.PLAY_Stop(RealplayPort);
                    DhPlaySdk.PLAY_CloseStream(RealplayPort);
                    DhPlaySdk.PLAY_ReleasePort(RealplayPort);
                    RealplayPort = -1;
                }
            }
            else if (CameraSdk is YuShiSdk ysSdk)
            {
            }
        }
    }

    public bool IsPlaying()
    {
        return CameraSdk?.IsPlaying() ?? false;
    }

    private int RealplayPort { get; set; } = -1;

    private void HikRealDataCallBack(int lRealHandle, uint dwDataType, IntPtr pBuffer, uint dwBufSize, IntPtr pUser)
    {
        if (RealplayPort < 0 || dwBufSize <= 0) return;
        Dispatcher.UIThread.Invoke(() =>
        {
            switch (dwDataType)
            {
                case HiKOriSdk.NET_DVR_SYSHEAD:
                    PlayCtrlSdk.PlayM4_SetStreamOpenMode(RealplayPort, 0);
                    PlayCtrlSdk.PlayM4_OpenStream(RealplayPort, pBuffer, dwBufSize, 2 * 1024 * 1024);
                    PlayCtrlSdk.PlayM4_SetDisplayBuf(RealplayPort, 5);
                    PlayCtrlSdk.PlayM4_Play(RealplayPort, GetPlayerHwnd());
                    break;

                case HiKOriSdk.NET_DVR_STREAMDATA:
                    PlayCtrlSdk.PlayM4_InputData(RealplayPort, pBuffer, dwBufSize);
                    break;
            }
        });
    }

    private void DaHuaRealDataCallBack(IntPtr lRealHandle, uint dwDataType, IntPtr pBuffer, uint dwBufSize, IntPtr param, IntPtr dwUser)
    {
        if (RealplayPort < 0 || dwBufSize <= 0) return;
        Dispatcher.UIThread.Invoke(() =>
        {
            switch (dwDataType)
            {
                case 0:
                    DhPlaySdk.PLAY_InputData(RealplayPort, pBuffer, dwBufSize);
                    break;
            }
        });
    }

    #endregion Play

    #region ElementEvent

    private void PtzBtn_MouseDown(object? sender, PointerPressedEventArgs e)
    {
        if (CameraSdk == null || sender is not Button btn) return;
        PtzCmdType cmdType = PtzCmd.GetCmdType((btn.Name ?? string.Empty).Replace("Btn", ""));
        int stop = 0;
        PtzCameraCmd.PtzMove(CameraSdk, cmdType, new int[] { stop });
    }

    private void PtzBtn_MouseUp(object? sender, PointerReleasedEventArgs e)
    {
        if (CameraSdk == null || sender is not Button btn) return;
        PtzCmdType cmdType = PtzCmd.GetCmdType((btn.Name ?? string.Empty).Replace("Btn", ""));
        int stop = 1;
        PtzCameraCmd.PtzMove(CameraSdk, cmdType, new int[] { stop });
    }

    private void GotoBtn_Click(object? sender, RoutedEventArgs e)
    {
        if (CameraSdk == null) return;
        PtzCmdType cmdType = PtzCmdType.PresetGoto;
        int presetId = int.Parse(PresetIdCbx.GetText());
        PtzCameraCmd.PtzMove(CameraSdk, cmdType, new int[] { presetId });
    }

    #endregion ElementEvent
}