package ca

import (
	"crypto/rand"
	"crypto/rsa"
	"fmt"
	"os"

	"github.com/spf13/cobra"
	"src.lwithers.me.uk/go/rsa/pkg/ca"
)

// Intermediate uses an existing CA to create a new intermediate CA in a new
// directory.
func Intermediate(cmd *cobra.Command, args []string) {
	newCADir := args[0]
	desc := args[1]

	ca, err := ca.Open(dir)
	if err != nil {
		fmt.Fprintln(os.Stderr, err)
		os.Exit(1)
	}

	template := createCATemplate(desc)
	key, err := rsa.GenerateKey(rand.Reader, bits)
	if err != nil {
		fmt.Fprintf(os.Stderr, "Failed to generate new key (%d bits): %v\n", bits, err)
		os.Exit(1)
	}

	_, err = ca.CreateIntermediate(newCADir, template, key)
	if err != nil {
		fmt.Fprintf(os.Stderr, "Failed to initialise new intermediate CA: %v\n", err)
		os.Exit(1)
	}
}