package main

import (
	"crypto/tls"
	"crypto/x509"
	"fmt"
	"io"
	"net/http"
	"os"
)

type ClientConn struct {
	tlsConn     *tls.Conn
	credentials Credentials
	isAuthed    bool
}

type Credentials struct {
	user string
	pass string
}

func New(host string, port int) *tls.Conn {
	cert, err := os.ReadFile("./public.pem")
	if err != nil {
		fmt.Printf("Error reading cert from ./public.pem: %v", err)
		os.Exit(1)
	}

	certPool := x509.NewCertPool()
	if ok := certPool.AppendCertsFromPEM(cert); !ok {
		fmt.Printf("Error loading certificate %v into cert pool", cert)
		os.Exit(1)
	}
	config := &tls.Config{RootCAs: certPool}
	conn, err := tls.Dial("tcp", host+":"+string(rune(port)), config)
	return conn
}

func getPublicKey() {
	out, err := os.Create("./public.pem")
	if err != nil {
		fmt.Printf("Error closing file writer: %v", err)
		os.Exit(1)
	}
	defer out.Close()

	resp, err := http.Get(Config.GetAsString("General.http-server") + "/public.pem")
	if err != nil {
		fmt.Printf("Error fetching public key: %v", err)
		os.Exit(1)
	}
	defer resp.Body.Close()

	if resp.StatusCode != http.StatusOK {
		fmt.Printf("Request was unseccessful with code %v", resp.StatusCode)
	}

	_, err = io.Copy(out, resp.Body)
	if err != nil {
		fmt.Printf("Error writing public key to file: %v", err)
		os.Exit(1)
	}
}