//go:build gopher_badge || nicenano
// +build gopher_badge nicenano

package main

import (
	"image/color"
	"time"

	"tinygo.org/x/tinyfont"
	"tinygo.org/x/tinyfont/freesans"

	qrcode "github.com/skip2/go-qrcode"
)

func Info() {
	qrSize := int16(180)
	if displayHeight < 200 {
		qrSize = displayHeight - 5
	}

	qr, err := qrcode.New("https://gopherbadge.com/", qrcode.Medium)
	if err != nil {
		println(err, 123)
	}

	qrbytes := qr.Bitmap()
	size := int16(len(qrbytes))

	factor := qrSize / size

	bx := (qrSize - size*factor) / 2
	by := (qrSize - size*factor) / 2
	display.FillScreen(color.RGBA{109, 0, 140, 255})
	for y := int16(0); y < size; y++ {
		for x := int16(0); x < size; x++ {
			if qrbytes[y][x] {
				display.FillRectangle(bx+x*factor, by+y*factor, factor, factor, colorBlack)
			} else {
				display.FillRectangle(bx+x*factor, by+y*factor, factor, factor, colorWhite)
			}
		}
	}

	w32, _ := tinyfont.LineWidth(&freesans.Bold18pt7b, "SCAN")
	tinyfont.WriteLine(&display, &freesans.Bold18pt7b, qrSize+((displayWidth-qrSize)-int16(w32))/2, 45, "SCAN", colorWhite)

	w32, _ = tinyfont.LineWidth(&freesans.Bold18pt7b, "ME")
	tinyfont.WriteLine(&display, &freesans.Bold18pt7b, qrSize+((displayWidth-qrSize)-int16(w32))/2, 80, "ME", colorWhite)

	if displayHeight >= 200 {
		w32, _ = tinyfont.LineWidth(&freesans.Bold9pt7b, "Press any")
		tinyfont.WriteLine(&display, &freesans.Bold9pt7b, qrSize+((displayWidth-qrSize)-int16(w32))/2, 120, "Press any", colorWhite)
		w32, _ = tinyfont.LineWidth(&freesans.Bold9pt7b, "button")
		tinyfont.WriteLine(&display, &freesans.Bold9pt7b, qrSize+((displayWidth-qrSize)-int16(w32))/2, 140, "button", colorWhite)
		w32, _ = tinyfont.LineWidth(&freesans.Bold9pt7b, "to continue")
		tinyfont.WriteLine(&display, &freesans.Bold9pt7b, qrSize+((displayWidth-qrSize)-int16(w32))/2, 160, "to continue", colorWhite)

		w32, _ = tinyfont.LineWidth(&freesans.Bold9pt7b, "Visit https://gopherbadge.com/")
		tinyfont.WriteLine(&display, &freesans.Bold9pt7b, (displayWidth-int16(w32))/2, qrSize+25, "Visit https://gopherbadge.com/", colorWhite)
		w32, _ = tinyfont.LineWidth(&freesans.Bold9pt7b, "for more information")
		tinyfont.WriteLine(&display, &freesans.Bold9pt7b, (displayWidth-int16(w32))/2, qrSize+45, "for more information", colorWhite)
	}

	for {
		time.Sleep(100 * time.Millisecond)
		getInput()
		if goBack() {
			quit = true
			return
		}
	}
}