using System;
using System.Windows.Input;
using Paca.App.Core;
using Xunit;

namespace Paca.Tests.App;

public class GlobalHotkeyGateTests
{
    [Fact]
    public void Gate257_GlobalHotkeyParser_ParsesKeyModifiers()
    {
        var success = GlobalHotkeyParser.TryParse("Ctrl+Shift+D", out var modifiers, out var key);

        Assert.True(success);
        Assert.Equal(ModifierKeys.Control | ModifierKeys.Shift, modifiers);
        Assert.Equal(Key.D, key);
    }

    [Fact]
    public void Gate258_GlobalHotkeyParser_ParsesAlternativeShortcut()
    {
        var success = GlobalHotkeyParser.TryParse("Ctrl+Alt+V", out var modifiers, out var key);

        Assert.True(success);
        Assert.Equal(ModifierKeys.Control | ModifierKeys.Alt, modifiers);
        Assert.Equal(Key.V, key);
    }

    [Fact]
    public void Gate259_GlobalHotkeyManager_CalculatesWin32ModFlags()
    {
        var modFlags = GlobalHotkeyManager.GetWin32ModifierFlags(ModifierKeys.Control | ModifierKeys.Shift);
        
        // MOD_CONTROL = 0x0002, MOD_SHIFT = 0x0004 -> 0x0006
        Assert.Equal(0x0006u, modFlags);

        var altWin = GlobalHotkeyManager.GetWin32ModifierFlags(ModifierKeys.Alt | ModifierKeys.Windows);
        // MOD_ALT = 0x0001, MOD_WIN = 0x0008 -> 0x0009
        Assert.Equal(0x0009u, altWin);
    }

    [Fact]
    public void Gate260_GlobalHotkeyManager_HotkeyTrigger_InvokesCallback()
    {
        var manager = new GlobalHotkeyManager();
        bool triggered = false;

        manager.RegisterVirtualHotkey("Ctrl+Shift+D", () => triggered = true);

        // Simulate trigger
        manager.SimulateHotkeyTrigger("Ctrl+Shift+D");

        Assert.True(triggered);
    }
}