/*
STACKIT Key Management Service API

### DEPRECATED! This service is no longer maintained. Please use the version v1 instead. This API provides endpoints for managing keys and key rings.

API version: 1beta.0.0
*/

// Code generated by OpenAPI Generator (https://openapi-generator.tech); DO NOT EDIT.

package kmsbeta

import (
	"encoding/json"
	"fmt"
)

// Purpose The purpose of the key.
type Purpose string

// List of purpose
const (
	PURPOSE_SYMMETRIC_ENCRYPT_DECRYPT   Purpose = "symmetric_encrypt_decrypt"
	PURPOSE_ASYMMETRIC_ENCRYPT_DECRYPT  Purpose = "asymmetric_encrypt_decrypt"
	PURPOSE_MESSAGE_AUTHENTICATION_CODE Purpose = "message_authentication_code"
	PURPOSE_ASYMMETRIC_SIGN_VERIFY      Purpose = "asymmetric_sign_verify"
)

// All allowed values of Purpose enum
var AllowedPurposeEnumValues = []Purpose{
	"symmetric_encrypt_decrypt",
	"asymmetric_encrypt_decrypt",
	"message_authentication_code",
	"asymmetric_sign_verify",
}

func (v *Purpose) UnmarshalJSON(src []byte) error {
	var value string
	err := json.Unmarshal(src, &value)
	if err != nil {
		return err
	}
	// Allow unmarshalling zero value for testing purposes
	var zeroValue string
	if value == zeroValue {
		return nil
	}
	enumTypeValue := Purpose(value)
	for _, existing := range AllowedPurposeEnumValues {
		if existing == enumTypeValue {
			*v = enumTypeValue
			return nil
		}
	}

	return fmt.Errorf("%+v is not a valid Purpose", value)
}

// NewPurposeFromValue returns a pointer to a valid Purpose
// for the value passed as argument, or an error if the value passed is not allowed by the enum
func NewPurposeFromValue(v string) (*Purpose, error) {
	ev := Purpose(v)
	if ev.IsValid() {
		return &ev, nil
	} else {
		return nil, fmt.Errorf("invalid value '%v' for Purpose: valid values are %v", v, AllowedPurposeEnumValues)
	}
}

// IsValid return true if the value is valid for the enum, false otherwise
func (v Purpose) IsValid() bool {
	for _, existing := range AllowedPurposeEnumValues {
		if existing == v {
			return true
		}
	}
	return false
}

// Ptr returns reference to purpose value
func (v Purpose) Ptr() *Purpose {
	return &v
}

type NullablePurpose struct {
	value *Purpose
	isSet bool
}

func (v NullablePurpose) Get() *Purpose {
	return v.value
}

func (v *NullablePurpose) Set(val *Purpose) {
	v.value = val
	v.isSet = true
}

func (v NullablePurpose) IsSet() bool {
	return v.isSet
}

func (v *NullablePurpose) Unset() {
	v.value = nil
	v.isSet = false
}

func NewNullablePurpose(val *Purpose) *NullablePurpose {
	return &NullablePurpose{value: val, isSet: true}
}

func (v NullablePurpose) MarshalJSON() ([]byte, error) {
	return json.Marshal(v.value)
}

func (v *NullablePurpose) UnmarshalJSON(src []byte) error {
	v.isSet = true
	return json.Unmarshal(src, &v.value)
}