package ui

import (
	rl "github.com/gen2brain/raylib-go/raylib"
)

// Arguments that UI elements use to render
type Style struct {
	BacgroundColor *rl.Color
	FontColor *rl.Color
	Padding *float32

	// Used in the drawing rectangles. Works like border-radius
	Roundness *float32
}

// Fills up not specifiend elements with default ones
func (base *Style) FillMissing(defaultStyle *Style) {
	if base.BacgroundColor == nil {
		base.BacgroundColor = defaultStyle.BacgroundColor
	}
	if base.Padding == nil {
		base.Padding = defaultStyle.Padding
	}
	if base.FontColor == nil {
		base.FontColor = defaultStyle.FontColor
	}
	if base.Roundness == nil {
		base.Roundness = defaultStyle.Roundness
	}
}

// Ensures that the provided style is not nil and fills in gaps with default style
func InitStyle(provided *Style, defaultStyle *Style) *Style {
	if provided == nil {
		return defaultStyle
	}
	provided.FillMissing(defaultStyle)
	return provided
}