package gb

import (
	"image"
	"image/color"
)

const (
	ConsoleWidth  = 160
	ConsoleHeight = 144
)

type Console struct {
	Bus   *Bus
	CPU   *CPU
	front *image.RGBA
}

func NewConsole(path string) (*Console, error) {
	cartridge, err := InsertCartridge(path)
	if err != nil {
		return &Console{}, err
	}
	buffer := image.NewRGBA(image.Rect(0, 0, ConsoleWidth, ConsoleHeight))

	bus := NewBus(cartridge)
	console := Console{Bus: bus, CPU: NewCPU(bus), front: buffer}

	return &console, nil
}

func (console *Console) StepMilliSeconds(ms uint64) {
	speed := int(ms / 3)
	for y := 0; y < ConsoleHeight; y++ {
		for x := 0; x < ConsoleWidth; x++ {
			console.front.Set(x, y, color.RGBA{0, uint8(y + speed), uint8(x + speed), 255})
		}
	}

}

func (console *Console) Buffer() *image.RGBA {

	return console.front
}