package frostfsid

import (
	"encoding/hex"
	"testing"

	"git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-adm/internal/modules/morph/helper"
	"git.frostfs.info/TrueCloudLab/frostfs-node/internal/ape"
	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
	"github.com/nspcc-dev/neo-go/pkg/encoding/address"
	"github.com/spf13/viper"
	"github.com/stretchr/testify/require"
)

func TestFrostfsIDConfig(t *testing.T) {
	pks := make([]*keys.PrivateKey, 4)
	for i := range pks {
		pk, err := keys.NewPrivateKey()
		require.NoError(t, err)
		pks[i] = pk
	}

	fmts := []string{
		pks[0].GetScriptHash().StringLE(),
		address.Uint160ToString(pks[1].GetScriptHash()),
		hex.EncodeToString(pks[2].PublicKey().UncompressedBytes()),
		hex.EncodeToString(pks[3].PublicKey().Bytes()),
	}

	for i := range fmts {
		v := viper.New()
		v.Set("frostfsid.admin", fmts[i])

		actual, found, err := helper.GetFrostfsIDAdmin(v)
		require.NoError(t, err)
		require.True(t, found)
		require.Equal(t, pks[i].GetScriptHash(), actual)
	}

	t.Run("bad key", func(t *testing.T) {
		v := viper.New()
		v.Set("frostfsid.admin", "abc")

		_, found, err := helper.GetFrostfsIDAdmin(v)
		require.Error(t, err)
		require.True(t, found)
	})
	t.Run("missing key", func(t *testing.T) {
		v := viper.New()

		_, found, err := helper.GetFrostfsIDAdmin(v)
		require.NoError(t, err)
		require.False(t, found)
	})
}

func TestNamespaceRegexp(t *testing.T) {
	for _, tc := range []struct {
		name      string
		namespace string
		matched   bool
	}{
		{
			name:      "root empty ns",
			namespace: "",
			matched:   true,
		},
		{
			name:      "simple valid ns",
			namespace: "my-namespace-123",
			matched:   true,
		},
		{
			name:      "root placeholder",
			namespace: "<root>",
			matched:   false,
		},
		{
			name:      "too long",
			namespace: "abcdefghijklmnopkrstuvwxyzabcdefghijklmnopkrstuvwxyz",
			matched:   false,
		},
		{
			name:      "start with hyphen",
			namespace: "-ns",
			matched:   false,
		},
		{
			name:      "end with hyphen",
			namespace: "ns-",
			matched:   false,
		},
		{
			name:      "with spaces",
			namespace: "ns ns",
			matched:   false,
		},
	} {
		t.Run(tc.name, func(t *testing.T) {
			require.Equal(t, tc.matched, ape.NamespaceNameRegexp.MatchString(tc.namespace))
		})
	}
}

func TestSubjectNameRegexp(t *testing.T) {
	for _, tc := range []struct {
		name    string
		subject string
		matched bool
	}{
		{
			name:    "empty",
			subject: "",
			matched: false,
		},
		{
			name:    "invalid",
			subject: "invalid{name}",
			matched: false,
		},
		{
			name:    "too long",
			subject: "abcdefghijklmnopkrstuvwxyzabcdefghijklmnopkrstuvwxyzabcdefghijklmnopkrstuvwxyz",
			matched: false,
		},
		{
			name:    "valid",
			subject: "valid_name.012345@6789",
			matched: true,
		},
	} {
		t.Run(tc.name, func(t *testing.T) {
			require.Equal(t, tc.matched, ape.SubjectNameRegexp.MatchString(tc.subject))
		})
	}
}

func TestSubjectGroupRegexp(t *testing.T) {
	for _, tc := range []struct {
		name    string
		subject string
		matched bool
	}{
		{
			name:    "empty",
			subject: "",
			matched: false,
		},
		{
			name:    "invalid",
			subject: "invalid{name}",
			matched: false,
		},
		{
			name:    "too long",
			subject: "abcdefghijklmnopkrstuvwxyzabcdefghijklmnopkrstuvwxyzabcdefghijklmnopkrstuvwxyzabcdefghijklmnopkrstuvwxyzabcdefghijklmnopkrstuvwxyz",
			matched: false,
		},
		{
			name:    "long",
			subject: "abcdefghijklmnopkrstuvwxyzabcdefghijklmnopkrstuvwxyzabcdefghijklmnopkrstuvwxyz",
			matched: true,
		},
		{
			name:    "valid",
			subject: "valid_name.012345@6789",
			matched: true,
		},
	} {
		t.Run(tc.name, func(t *testing.T) {
			require.Equal(t, tc.matched, ape.GroupNameRegexp.MatchString(tc.subject))
		})
	}
}