// 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.

// Data Integration API
//
// Use the Data Integration API to organize your data integration projects, create data flows, pipelines and tasks, and then publish, schedule, and run tasks that extract, transform, and load data. For more information, see Data Integration (https://docs.oracle.com/iaas/data-integration/home.htm).
//

package dataintegration

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

// PushDownOperation The information about a push down operation.
type PushDownOperation interface {
}

type pushdownoperation struct {
	JsonData  []byte
	ModelType string `json:"modelType"`
}

// UnmarshalJSON unmarshals json
func (m *pushdownoperation) UnmarshalJSON(data []byte) error {
	m.JsonData = data
	type Unmarshalerpushdownoperation pushdownoperation
	s := struct {
		Model Unmarshalerpushdownoperation
	}{}
	err := json.Unmarshal(data, &s.Model)
	if err != nil {
		return err
	}
	m.ModelType = s.Model.ModelType

	return err
}

// UnmarshalPolymorphicJSON unmarshals polymorphic json
func (m *pushdownoperation) UnmarshalPolymorphicJSON(data []byte) (interface{}, error) {

	if data == nil || string(data) == "null" {
		return nil, nil
	}

	var err error
	switch m.ModelType {
	case "QUERY":
		mm := Query{}
		err = json.Unmarshal(data, &mm)
		return mm, err
	case "SELECT":
		mm := ModelSelect{}
		err = json.Unmarshal(data, &mm)
		return mm, err
	case "JOIN":
		mm := Join{}
		err = json.Unmarshal(data, &mm)
		return mm, err
	case "SORT":
		mm := Sort{}
		err = json.Unmarshal(data, &mm)
		return mm, err
	case "FILTER":
		mm := FilterPush{}
		err = json.Unmarshal(data, &mm)
		return mm, err
	default:
		common.Logf("Received unsupported enum value for PushDownOperation: %s.", m.ModelType)
		return *m, nil
	}
}

func (m pushdownoperation) 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 pushdownoperation) ValidateEnumValue() (bool, error) {
	errMessage := []string{}

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

// PushDownOperationModelTypeEnum Enum with underlying type: string
type PushDownOperationModelTypeEnum string

// Set of constants representing the allowable values for PushDownOperationModelTypeEnum
const (
	PushDownOperationModelTypeFilter PushDownOperationModelTypeEnum = "FILTER"
	PushDownOperationModelTypeJoin   PushDownOperationModelTypeEnum = "JOIN"
	PushDownOperationModelTypeSelect PushDownOperationModelTypeEnum = "SELECT"
	PushDownOperationModelTypeSort   PushDownOperationModelTypeEnum = "SORT"
	PushDownOperationModelTypeQuery  PushDownOperationModelTypeEnum = "QUERY"
)

var mappingPushDownOperationModelTypeEnum = map[string]PushDownOperationModelTypeEnum{
	"FILTER": PushDownOperationModelTypeFilter,
	"JOIN":   PushDownOperationModelTypeJoin,
	"SELECT": PushDownOperationModelTypeSelect,
	"SORT":   PushDownOperationModelTypeSort,
	"QUERY":  PushDownOperationModelTypeQuery,
}

var mappingPushDownOperationModelTypeEnumLowerCase = map[string]PushDownOperationModelTypeEnum{
	"filter": PushDownOperationModelTypeFilter,
	"join":   PushDownOperationModelTypeJoin,
	"select": PushDownOperationModelTypeSelect,
	"sort":   PushDownOperationModelTypeSort,
	"query":  PushDownOperationModelTypeQuery,
}

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

// GetPushDownOperationModelTypeEnumStringValues Enumerates the set of values in String for PushDownOperationModelTypeEnum
func GetPushDownOperationModelTypeEnumStringValues() []string {
	return []string{
		"FILTER",
		"JOIN",
		"SELECT",
		"SORT",
		"QUERY",
	}
}

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