using AcDream.App.UI.Layout;
using AcDream.Core.Net.Messages;

namespace AcDream.App.UI;

/// <summary>
/// Ports the server-driven confirmation ownership in
/// <c>gmGamePlayUI @ 0x004E9D70..0x004E9EB6</c>. The dialog factory broadcasts
/// completion; this semantic owner retains the server type/context and sends the
/// matching confirmation response.
/// </summary>
public sealed class GameplayConfirmationController : IDisposable
{
    private readonly RetailDialogFactory _dialogs;
    private readonly Action<uint, uint, bool> _sendResponse;
    private uint _dialogContext;
    private uint _serverType;
    private uint _serverContext;
    private bool _disposed;

    public GameplayConfirmationController(
        RetailDialogFactory dialogs,
        Action<uint, uint, bool> sendResponse)
    {
        _dialogs = dialogs ?? throw new ArgumentNullException(nameof(dialogs));
        _sendResponse = sendResponse ?? throw new ArgumentNullException(nameof(sendResponse));
        _dialogs.DialogClosed += OnDialogClosed;
    }

    public uint ActiveDialogContext => _dialogContext;

    public bool HandleRequest(GameEvents.CharacterConfirmationRequest request)
    {
        // ClientUISystem::Handle_Character__ConfirmationRequest @ 0x005640A0
        // routes types 2/3/5/6 to handlers that append " Continue?"; the generic
        // type-7 YesNo request preserves the server text verbatim. Types 1 and 4
        // have allegiance/fellowship semantic owners but use the same response
        // tuple, so this controller retains that tuple until those panels exist.
        // Each retail RecvNotice_* handler stores the tuple before calling the
        // shared maker, including the already-open case.
        _serverType = request.Type;
        _serverContext = request.ContextId;

        // gmGamePlayUI::MakeGameplayConfirmationDialog @ 0x004EB890 refuses a
        // second gameplay confirmation while its context is non-zero.
        if (_dialogContext != 0u)
            return false;

        string message = request.Type is 2u or 3u or 5u or 6u
            ? request.Message + " Continue?"
            : request.Message;
        var data = RetailDialogData.Confirmation(message)
            .Set(RetailDialogProperty.ElementAttribute40, true);
        _dialogContext = _dialogs.MakeDialog(data);
        return _dialogContext != 0u;
    }

    public bool HandleDone(GameEvents.CharacterConfirmationDone done)
    {
        // gmGamePlayUI::RecvNotice_AbortConfirmationRequest @ 0x004E9D70
        // matches both server fields before closing the local dialog context.
        if (_dialogContext == 0u
            || done.Type != _serverType
            || done.ContextId != _serverContext)
            return false;
        return _dialogs.CloseDialog(_dialogContext);
    }

    public void Dispose()
    {
        if (_disposed) return;
        _disposed = true;
        _dialogs.DialogClosed -= OnDialogClosed;
    }

    private void OnDialogClosed(uint context, RetailDialogData data)
    {
        if (context != _dialogContext
            || data.GetUInt32(RetailDialogProperty.Type) !=
                (uint)RetailDialogType.Confirmation)
            return;

        bool accepted = data.GetBoolean(RetailDialogProperty.ConfirmationResult);
        // gmGamePlayUI::CloseGameplayConfirmationDialog @ 0x004E9E80 sends
        // before clearing its retained server/dialog context fields.
        _sendResponse(_serverType, _serverContext, accepted);
        _dialogContext = 0u;
        _serverType = 0u;
        _serverContext = 0u;
    }
}