/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package util

import (
	"reflect"

	"github.com/go-chassis/cari/config"
	"github.com/go-chassis/cari/pkg/errsvc"
)

// IsEquivalentLabel compares whether two labels are equal.
// In particular, if one is nil and another is an empty map, it return true
func IsEquivalentLabel(x, y map[string]string) bool {
	if len(x) == 0 && len(y) == 0 {
		return true
	}
	return reflect.DeepEqual(x, y)
}

// IsContainLabel compares whether x contain y
func IsContainLabel(x, y map[string]string) bool {
	if len(x) < len(y) {
		return false
	}
	for yK, yV := range y {
		if xV, ok := x[yK]; ok && xV == yV {
			continue
		}
		return false
	}
	return true
}

func SvcErr(err error) *errsvc.Error {
	svcErr, ok := err.(*errsvc.Error)
	if ok {
		return svcErr
	}
	return config.NewError(config.ErrInternal, err.Error())
}
