package chain

import (
	"fmt"
	"os"
	"testing"

	"git.frostfs.info/TrueCloudLab/policy-engine/schema/native"
	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
	"github.com/stretchr/testify/require"
)

func TestID(t *testing.T) {
	key, err := keys.NewPrivateKeyFromWIF("L5eVx6HcHaFpQpvjQ3fy29uKDZ8rQ34bfMVx4XfZMm52EqafpNMg") // s3-gw key
	require.NoError(t, err)

	chain1 := &Chain{ID: ID(key.PublicKey().GetScriptHash().BytesBE())}
	data := chain1.Bytes()

	var chain2 Chain
	require.NoError(t, chain2.DecodeBytes(data))

	require.Equal(t, chain1.ID, chain2.ID)

	data, err = chain1.MarshalJSON()
	require.NoError(t, err)

	require.NoError(t, chain2.UnmarshalJSON(data))

	require.Equal(t, chain1.ID, chain2.ID)
}

func TestMatchTypeJson(t *testing.T) {
	for _, mt := range []MatchType{MatchTypeDenyPriority, MatchTypeFirstMatch, MatchType(100)} {
		var chain Chain
		chain.MatchType = mt

		data, err := chain.MarshalJSON()
		require.NoError(t, err)
		if mt == MatchTypeDenyPriority {
			require.Equal(t, []byte("{\"ID\":null,\"Rules\":null,\"MatchType\":\"DenyPriority\"}"), data)
		} else if mt == MatchTypeFirstMatch {
			require.Equal(t, []byte("{\"ID\":null,\"Rules\":null,\"MatchType\":\"FirstMatch\"}"), data)
		} else {
			require.Equal(t, []byte(fmt.Sprintf("{\"ID\":null,\"Rules\":null,\"MatchType\":\"%d\"}", mt)), data)
		}

		var parsed Chain
		require.NoError(t, parsed.UnmarshalJSON(data))
		require.Equal(t, chain, parsed)

		require.Error(t, parsed.UnmarshalJSON([]byte("{\"ID\":\"\",\"Rules\":null,\"MatchType\":\"NotValid\"}")))
	}
}

func TestJsonEnums(t *testing.T) {
	chain := Chain{
		ID:        []byte("2cca5ae7-cee8-428d-b45f-567fb1d03f01"), // will be encoded to base64
		MatchType: MatchTypeFirstMatch,
		Rules: []Rule{
			{
				Status: AccessDenied,
				Actions: Actions{
					Names: []string{native.MethodDeleteObject, native.MethodGetContainer},
				},
				Resources: Resources{
					Names: []string{native.ResourceFormatAllObjects},
				},
				Condition: []Condition{
					{
						Op:    CondStringEquals,
						Kind:  KindRequest,
						Key:   native.PropertyKeyActorRole,
						Value: native.PropertyValueContainerRoleOthers,
					},
				},
			},
			{
				Status: QuotaLimitReached,
				Actions: Actions{
					Inverted: true,
					Names:    []string{native.MethodPutObject},
				},
				Resources: Resources{
					Names: []string{fmt.Sprintf(native.ResourceFormatRootContainerObjects, "9LPLUFZpEmfidG4n44vi2cjXKXSqWT492tCvLJiJ8W1J")},
				},
				Any: true,
				Condition: []Condition{
					{
						Op:    CondStringNotLike,
						Kind:  KindResource,
						Key:   native.PropertyKeyObjectType,
						Value: "regular",
					},
				},
			},
			{
				Status: Status(100),
				Condition: []Condition{
					{
						Op:   ConditionType(255),
						Kind: ConditionKindType(128),
					},
				},
			},
		},
	}

	data, err := chain.MarshalJSON()
	require.NoError(t, err)

	var parsed Chain
	require.NoError(t, parsed.UnmarshalJSON(data))
	require.Equal(t, chain, parsed)

	expected, err := os.ReadFile("./testdata/test_status_json.json")
	require.NoError(t, err)

	require.NoError(t, parsed.UnmarshalJSON(expected))
	require.Equal(t, chain, parsed)
}