/**
# Copyright (c) 2022, NVIDIA CORPORATION.  All rights reserved.
#
# Licensed 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 edits

import (
	ociSpecs "github.com/opencontainers/runtime-spec/specs-go"
	"tags.cncf.io/container-device-interface/pkg/cdi"
	"tags.cncf.io/container-device-interface/specs-go"

	"github.com/NVIDIA/nvidia-container-toolkit/internal/logger"
)

type edits struct {
	cdi.ContainerEdits
	logger logger.Interface
}

// NewContainerEdits is a utility function to create a CDI ContainerEdits struct.
func NewContainerEdits() *cdi.ContainerEdits {
	c := cdi.ContainerEdits{
		ContainerEdits: &specs.ContainerEdits{},
	}
	return &c
}

// Modify applies the defined edits to the incoming OCI spec
func (e *edits) Modify(spec *ociSpecs.Spec) error {
	if e == nil || e.ContainerEdits.ContainerEdits == nil {
		return nil
	}

	e.logger.Info("Mounts:")
	for _, mount := range e.Mounts {
		e.logger.Infof("Mounting %v at %v", mount.HostPath, mount.ContainerPath)
	}
	e.logger.Infof("Devices:")
	for _, device := range e.DeviceNodes {
		e.logger.Infof("Injecting %v", device.Path)
	}
	e.logger.Infof("Hooks:")
	for _, hook := range e.Hooks {
		e.logger.Infof("Injecting %v %v", hook.Path, hook.Args)
	}

	return e.Apply(spec)
}