package uilayout

import "fyne.io/fyne/v2"

// MinSize implements a min size layout.
//
// The MinSize layout will ensure that the container is rendered at a size that
// is at least as large as the minimum size provided.
type MinSize struct {
	minSize fyne.Size
}

// NewMinSizeLayout creates a new MinSize layout with the specified minimum size.
//
// Arguments:
// - minSize: the minimum size for the layout.
//
// Returns *MinSize: a pointer to the newly created MinSize layout.
func NewMinSizeLayout(minSize fyne.Size) *MinSize {
	return &MinSize{minSize: minSize}
}

// MinSize calculates the minimum size of the layout on the current screen. The
// reported size will be at least as large as the configured minimum size.
func (l *MinSize) MinSize(objects []fyne.CanvasObject) fyne.Size {
	size := l.minSize
	for _, o := range objects {
		childSize := o.MinSize()
		if size.Width < childSize.Width {
			size.Width = childSize.Width
		}
		if size.Height < childSize.Height {
			size.Height = childSize.Height
		}
	}
	return size
}

// Layout implements the Layout interface.
func (l *MinSize) Layout(objects []fyne.CanvasObject, containerSize fyne.Size) {
	pos := fyne.NewPos(0, 0)
	for _, o := range objects {
		o.Resize(containerSize)
		o.Move(pos)
	}
}