// Copyright 2021 Cambricon, Inc.
//
// 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 allocator

import (
	"strings"

	"4pd.io/k8s-vgpu/pkg/device-plugin/mlu/cndev"
)

type Allocator interface {
	Allocate(available []uint, required []uint, size int) ([]uint, error)
}

func New(policy string, devs map[string]*cndev.Device) Allocator {
	model := cndev.GetDeviceModel(uint(0))
	if strings.Contains(model, "MLU290") || model == "MLU370-M8" {
		return NewSpiderAllocator(policy, devs)
	}
	if model == "MLU370-X8" {
		return NewBoardAllocator(policy, devs)
	}
	return NewDefaultAllocator(policy, devs)
}

func contains(set []uint, dev uint) bool {
	for i := range set {
		if set[i] == dev {
			return true
		}
	}
	return false
}

func containsAll(set []uint, devs []uint) bool {
	for _, dev := range devs {
		if !contains(set, dev) {
			return false
		}
	}
	return true
}
