using System;
using System.Drawing;
using System.Collections.Generic;

// The 'windowHandle' parameter will contain the window handle for the:
//   - Active window when run by hotkey
//   - Window Location target when run by a Window Location rule
//   - TitleBar Button owner when run by a TitleBar Button
//   - Jump List owner when run from a Taskbar Jump List
//   - Currently focused window if none of these match
public static class DisplayFusionFunction
{
    public static void Run(IntPtr windowHandle)
    {
        // set the scale amount
        // (greater than 1.0 increases window size, less than 1.0 decreases window size)
        float scaleAmount = 0.9f;

        // set the minimum size for the window (relative to the monitor's size)
        float minimumRelativeSize = 0.2f;

        /* === DO NOT MODIFY BELOW THIS LINE === */

        Rectangle rWindow = BFS.Window.GetBounds(windowHandle);
        Rectangle rMonitor = BFS.Monitor.GetMonitorWorkAreaByWindow(windowHandle);

        int iWinW = (int)(rWindow.Width * scaleAmount);
        int iWinH = (int)(rWindow.Height * scaleAmount);
        int iWinX = rWindow.Left - (int)((iWinW - rWindow.Width) / 2.0f);
        int iWinY = rWindow.Top - (int)((iWinH - rWindow.Height) / 2.0f);

        // constrain the window to the monitor's bounds
        if (iWinW > rMonitor.Width || iWinX < rMonitor.Left || (iWinX + iWinW) > rMonitor.Right)
        {
            iWinW = rWindow.Width;
            iWinX = rWindow.Left;
        }

        if (iWinH > rMonitor.Height || iWinY < rMonitor.Top || (iWinY + iWinH) > rMonitor.Bottom)
        {
            iWinH = rWindow.Height;
            iWinY = rWindow.Top;
        }

        // enforce the minimum size constraint
        if (iWinW < (int)(rMonitor.Width * minimumRelativeSize))
        {
            iWinW = rWindow.Width;
            iWinX = rWindow.Left;
        }

        if (iWinH < (int)(rMonitor.Height * minimumRelativeSize))
        {
            iWinH = rWindow.Height;
            iWinY = rWindow.Top;
        }

        BFS.Window.SetSizeAndLocation(windowHandle, iWinX, iWinY, iWinW, iWinH);
    }
}