package cryptutil

import (
	"bytes"
	"crypto/tls"
	"encoding/base64"
	"strings"
	"testing"

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

// A keypair for NIST P-256 / secp256r1
// Generated using:
//
//	openssl ecparam -genkey -name prime256v1 -outform PEM
var pemECPrivateKeyP256 = `-----BEGIN EC PARAMETERS-----
BggqhkjOPQMBBw==
-----END EC PARAMETERS-----
-----BEGIN EC PRIVATE KEY-----
MHcCAQEEIOI+EZsjyN3jvWJI/KDihFmqTuDpUe/if6f/pgGTBta/oAoGCCqGSM49
AwEHoUQDQgAEhhObKJ1r1PcUw+3REd/TbmSZnDvXnFUSTwqQFo5gbfIlP+gvEYba
+Rxj2hhqjfzqxIleRK40IRyEi3fJM/8Qhg==
-----END EC PRIVATE KEY-----
`

var pemECPublicKeyP256 = `-----BEGIN PUBLIC KEY-----
MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEhhObKJ1r1PcUw+3REd/TbmSZnDvX
nFUSTwqQFo5gbfIlP+gvEYba+Rxj2hhqjfzqxIleRK40IRyEi3fJM/8Qhg==
-----END PUBLIC KEY-----
`

var garbagePEM = `-----BEGIN GARBAGE-----
TG9yZW0gaXBzdW0gZG9sb3Igc2l0IGFtZXQ=
-----END GARBAGE-----
`

// from https://golang.org/src/crypto/x509/x509_test.go
const (
	derCRLBase64 = "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"
	pemCRL       = `
-----BEGIN X509 CRL-----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-----END X509 CRL-----
`
)

func TestCertificateFromBase64(t *testing.T) {
	tests := []struct {
		name string
		cert string
		key  string
		// want    *tls.Certificate
		wantErr bool
	}{
		{
			"good",
			"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",
			"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",
			false,
		},
		{
			"bad cert",
			"!=",
			"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",
			true,
		},
		{
			"bad key",
			"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",
			"!=",
			true,
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			_, err := CertificateFromBase64(tt.cert, tt.key)
			if (err != nil) != tt.wantErr {
				t.Errorf("CertificateFromBase64() error = %v, wantErr %v", err, tt.wantErr)
				return
			}
		})
	}
}

func TestCertificateFromFile(t *testing.T) {
	cert, err := CertificateFromFile("testdata/example-cert.pem", "testdata/example-key.pem")
	if err != nil {
		t.Fatal(err)
	}
	cfg := &tls.Config{Certificates: []tls.Certificate{*cert}}
	listener, err := tls.Listen("tcp", ":2000", cfg)
	if err != nil {
		t.Fatal(err)
	}
	_ = listener
}

func TestParseCRLs(t *testing.T) {
	crls, err := ParseCRLs([]byte(pemCRL))
	assert.NoError(t, err)
	assert.Equal(t, 1, len(crls))
	crl := crls["0l1\x1a0\x18\x06\x03U\x04\n\x13\x11RSA Security Inc.1\x1e0\x1c\x06\x03U\x04\x03\x13\x15RSA Public Root CA v11.0,\x06\t*\x86H\x86\xf7\r\x01\t\x01\x16\x1frsakeonrootsign@rsasecurity.com"]
	assert.NotNil(t, crl)

	t.Run("der", func(t *testing.T) {
		bs, _ := base64.StdEncoding.DecodeString(derCRLBase64)
		crls, err := ParseCRLs(bs)
		assert.Error(t, err, "should not allow DER encoded CRL")
		assert.Nil(t, crls)
	})
}

func TestPublicKeyMarshaling(t *testing.T) {
	ecKey, err := DecodePublicKey([]byte(pemECPublicKeyP256))
	if err != nil {
		t.Fatal(err)
	}
	_, err = DecodePublicKey(nil)
	if err == nil {
		t.Fatal("expected error")
	}

	pemBytes, _ := EncodePublicKey(ecKey)
	if !bytes.Equal(pemBytes, []byte(pemECPublicKeyP256)) {
		t.Fatal("public key encoding did not match")
	}
}

func TestPrivateKeyBadDecode(t *testing.T) {
	_, err := DecodePrivateKey([]byte(garbagePEM))
	if err == nil {
		t.Fatal("decoded garbage data without complaint")
	}
}

func TestPrivateKeyMarshaling(t *testing.T) {
	ecKey, err := DecodePrivateKey([]byte(pemECPrivateKeyP256))
	if err != nil {
		t.Fatal(err)
	}

	pemBytes, _ := EncodePrivateKey(ecKey)
	if !strings.HasSuffix(pemECPrivateKeyP256, string(pemBytes)) {
		t.Fatal("private key encoding did not match")
	}
}

func TestEncodeCertificate(t *testing.T) {
	t.Run("nil", func(t *testing.T) {
		cert, key, err := EncodeCertificate(nil)
		assert.NoError(t, err)
		assert.Nil(t, cert)
		assert.Nil(t, key)
	})
	t.Run("empty certificate", func(t *testing.T) {
		cert, key, err := EncodeCertificate(&tls.Certificate{})
		assert.NoError(t, err)
		assert.Nil(t, cert)
		assert.Nil(t, key)
	})
}