package main

import (
	"bytes"
	"io"
	"log"

	"github.com/gliderlabs/ssh"
	"github.com/qpliu/qrencode-go/qrencode"

	"git.icedream.tech/icedream/pixelqr/internal"
)

func main() {
	greeting := "https://git.icedream.tech/icedream/pixelqr"

	ssh.Handle(func(s ssh.Session) {
		grid, err := qrencode.Encode(greeting, qrencode.ECLevelQ)
		if err != nil {
			log.Println(err)
			return
		}

		w := new(bytes.Buffer)
		err = internal.ConvertGridToUnicode(w, grid)
		if err != nil {
			log.Println(err)
			return
		}
		qrs := string(w.Bytes())

		io.WriteString(s, "Scan this QR code for the link to the library that generated it:\n\n")
		io.WriteString(s, qrs)
		io.WriteString(s, "\n\nThank you!\n")

		for err == nil {
			_, err = s.Read([]byte{})
		}
	})

	log.Fatal(ssh.ListenAndServe(":2020", nil))
}