package agehd

import (
	"bytes"
	"io"
	"testing"

	"filippo.io/age"
)

const mnemonic = "abandon abandon abandon abandon abandon " +
	"abandon abandon abandon abandon abandon abandon about"

func TestEncryptDecrypt(t *testing.T) {
	id, err := DeriveIdentity(mnemonic, 0)
	if err != nil {
		t.Fatalf("derive: %v", err)
	}

	t.Logf("secret:    %s", id.String())
	t.Logf("recipient: %s", id.Recipient().String())

	var ct bytes.Buffer
	w, err := age.Encrypt(&ct, id.Recipient())
	if err != nil {
		t.Fatalf("encrypt init: %v", err)
	}
	if _, err = io.WriteString(w, "hello world"); err != nil {
		t.Fatalf("write: %v", err)
	}
	if err = w.Close(); err != nil {
		t.Fatalf("encrypt close: %v", err)
	}

	r, err := age.Decrypt(bytes.NewReader(ct.Bytes()), id)
	if err != nil {
		t.Fatalf("decrypt init: %v", err)
	}
	dec, err := io.ReadAll(r)
	if err != nil {
		t.Fatalf("read: %v", err)
	}

	if got := string(dec); got != "hello world" {
		t.Fatalf("round-trip mismatch: %q", got)
	}
}