// Copyright (c) 2026 Probo Inc <hello@getprobo.com>.
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
// AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
// OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
// PERFORMANCE OF THIS SOFTWARE.

package bootstrap

import (
	"crypto/x509"
	"encoding/pem"
	"testing"

	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
)

func TestGenerateOAuth2SigningKey(t *testing.T) {
	t.Parallel()

	key, err := GenerateOAuth2SigningKey()
	require.NoError(t, err)

	block, _ := pem.Decode([]byte(key))
	require.NotNil(t, block, "private key should be valid PEM")
	assert.Equal(t, "RSA PRIVATE KEY", block.Type)

	parsed, err := x509.ParsePKCS1PrivateKey(block.Bytes)
	require.NoError(t, err)

	assert.Equal(t, oauth2SigningKeyBits, parsed.N.BitLen())
}

func TestGenerateOAuth2SigningKey_Unique(t *testing.T) {
	t.Parallel()

	key1, err := GenerateOAuth2SigningKey()
	require.NoError(t, err)

	key2, err := GenerateOAuth2SigningKey()
	require.NoError(t, err)

	assert.NotEqual(t, key1, key2)
}