/*
# Copyright (c) 2021, 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 discover

import (
	log "github.com/sirupsen/logrus"
	"gitlab.com/nvidia/cloud-native/container-toolkit/internal/lookup"
)

// NewIPCMounts creates a discoverer for IPC sockets
func NewIPCMounts(root string) Discover {
	return NewIPCMountsWithLogger(log.StandardLogger(), root)
}

// NewIPCMountsWithLogger creates a discovered as with NewIPCMounts with the
// specified logger.
func NewIPCMountsWithLogger(logger *log.Logger, root string) Discover {
	d := mounts{
		logger:   logger,
		lookup:   lookup.NewFileLocatorWithLogger(logger, root),
		required: requiredIPCs,
	}

	return &d
}

var requiredIPCs = map[string][]string{
	"nvidia-persistenced": {
		"/var/run/nvidia-persistenced/socket",
	},
	"nvidia-fabricmanager": {
		"/var/run/nvidia-fabricmanager/socket",
	},
	// TODO: This can be controlled by the NV_MPS_PIPE_DIR envvar
	"nvidia-mps": {
		"/tmp/nvidia-mps",
	},
}