// Copyright (c) 2016, 2018, 2025, Oracle and/or its affiliates.  All rights reserved.
// This software is dual-licensed to you under the Universal Permissive License (UPL) 1.0 as shown at https://oss.oracle.com/licenses/upl or Apache License 2.0 as shown at http://www.apache.org/licenses/LICENSE-2.0. You may choose either license.
// Code generated. DO NOT EDIT.

// API Gateway API
//
// API for the API Gateway service. Use this API to manage gateways, deployments, and related items.
// For more information, see
// Overview of API Gateway (https://docs.oracle.com/iaas/Content/APIGateway/Concepts/apigatewayoverview.htm).
//

package apigateway

import (
	"fmt"
	"github.com/oracle/oci-go-sdk/v65/common"
	"strings"
)

// FilterHeaderPolicy Filter HTTP headers as they pass through the gateway.  The gateway applies filters after other transformations,
// so any headers set or renamed must also be listed here when using an ALLOW type policy.
type FilterHeaderPolicy struct {

	// BLOCK drops any headers that are in the list of items, so it acts as an exclusion list.  ALLOW
	// permits only the headers in the list and removes all others, so it acts as an inclusion list.
	Type FilterHeaderPolicyTypeEnum `mandatory:"true" json:"type"`

	// The list of headers.
	Items []FilterHeaderPolicyItem `mandatory:"true" json:"items"`
}

func (m FilterHeaderPolicy) String() string {
	return common.PointerString(m)
}

// ValidateEnumValue returns an error when providing an unsupported enum value
// This function is being called during constructing API request process
// Not recommended for calling this function directly
func (m FilterHeaderPolicy) ValidateEnumValue() (bool, error) {
	errMessage := []string{}
	if _, ok := GetMappingFilterHeaderPolicyTypeEnum(string(m.Type)); !ok && m.Type != "" {
		errMessage = append(errMessage, fmt.Sprintf("unsupported enum value for Type: %s. Supported values are: %s.", m.Type, strings.Join(GetFilterHeaderPolicyTypeEnumStringValues(), ",")))
	}

	if len(errMessage) > 0 {
		return true, fmt.Errorf("%s", strings.Join(errMessage, "\n"))
	}
	return false, nil
}

// FilterHeaderPolicyTypeEnum Enum with underlying type: string
type FilterHeaderPolicyTypeEnum string

// Set of constants representing the allowable values for FilterHeaderPolicyTypeEnum
const (
	FilterHeaderPolicyTypeAllow FilterHeaderPolicyTypeEnum = "ALLOW"
	FilterHeaderPolicyTypeBlock FilterHeaderPolicyTypeEnum = "BLOCK"
)

var mappingFilterHeaderPolicyTypeEnum = map[string]FilterHeaderPolicyTypeEnum{
	"ALLOW": FilterHeaderPolicyTypeAllow,
	"BLOCK": FilterHeaderPolicyTypeBlock,
}

var mappingFilterHeaderPolicyTypeEnumLowerCase = map[string]FilterHeaderPolicyTypeEnum{
	"allow": FilterHeaderPolicyTypeAllow,
	"block": FilterHeaderPolicyTypeBlock,
}

// GetFilterHeaderPolicyTypeEnumValues Enumerates the set of values for FilterHeaderPolicyTypeEnum
func GetFilterHeaderPolicyTypeEnumValues() []FilterHeaderPolicyTypeEnum {
	values := make([]FilterHeaderPolicyTypeEnum, 0)
	for _, v := range mappingFilterHeaderPolicyTypeEnum {
		values = append(values, v)
	}
	return values
}

// GetFilterHeaderPolicyTypeEnumStringValues Enumerates the set of values in String for FilterHeaderPolicyTypeEnum
func GetFilterHeaderPolicyTypeEnumStringValues() []string {
	return []string{
		"ALLOW",
		"BLOCK",
	}
}

// GetMappingFilterHeaderPolicyTypeEnum performs case Insensitive comparison on enum value and return the desired enum
func GetMappingFilterHeaderPolicyTypeEnum(val string) (FilterHeaderPolicyTypeEnum, bool) {
	enum, ok := mappingFilterHeaderPolicyTypeEnumLowerCase[strings.ToLower(val)]
	return enum, ok
}
