package service

import (
	"encoding/json"
	"fmt"
)

// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License. See NOTICE.txt in the project root for license information.

var _ ScalingMechanism = PartitionInstanceCountScaleMechanism{}

type PartitionInstanceCountScaleMechanism struct {
	MaxInstanceCount int64 `json:"maxInstanceCount"`
	MinInstanceCount int64 `json:"minInstanceCount"`
	ScaleIncrement   int64 `json:"scaleIncrement"`

	// Fields inherited from ScalingMechanism

	Kind ServiceScalingMechanismKind `json:"kind"`
}

func (s PartitionInstanceCountScaleMechanism) ScalingMechanism() BaseScalingMechanismImpl {
	return BaseScalingMechanismImpl{
		Kind: s.Kind,
	}
}

var _ json.Marshaler = PartitionInstanceCountScaleMechanism{}

func (s PartitionInstanceCountScaleMechanism) MarshalJSON() ([]byte, error) {
	type wrapper PartitionInstanceCountScaleMechanism
	wrapped := wrapper(s)
	encoded, err := json.Marshal(wrapped)
	if err != nil {
		return nil, fmt.Errorf("marshaling PartitionInstanceCountScaleMechanism: %+v", err)
	}

	var decoded map[string]interface{}
	if err = json.Unmarshal(encoded, &decoded); err != nil {
		return nil, fmt.Errorf("unmarshaling PartitionInstanceCountScaleMechanism: %+v", err)
	}

	decoded["kind"] = "ScalePartitionInstanceCount"

	encoded, err = json.Marshal(decoded)
	if err != nil {
		return nil, fmt.Errorf("re-marshaling PartitionInstanceCountScaleMechanism: %+v", err)
	}

	return encoded, nil
}
