// Copyright 2017 Amazon.com, Inc. or its affiliates. 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. A copy of the
// License is located at
//
//     http://aws.amazon.com/apache2.0/
//
// or in the "license" file accompanying this file. This file 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 netlinkwrapper

import (
	"net"

	"github.com/vishvananda/netlink"
)

// NetLink wraps methods used from the vishvananda/netlink package
type NetLink interface {
	// LinkByName gets a link object given the device name
	LinkByName(name string) (netlink.Link, error)
	// LinkSetNsFd is equivalent to `ip link set $link netns $ns`
	LinkSetNsFd(link netlink.Link, fd int) error
	// ParseAddr parses an address string
	ParseAddr(s string) (*netlink.Addr, error)
	// AddrAdd is equivalent to `ip addr add $addr dev $link`
	AddrAdd(link netlink.Link, addr *netlink.Addr) error
	// AddrList is equivalent to `ip addr show `
	AddrList(link netlink.Link, family int) ([]netlink.Addr, error)
	// LinkAdd is equivalent to `ip link add`
	LinkAdd(link netlink.Link) error
	// LinkSetMaster is equivalent to `ip link set $link master $master`
	LinkSetMaster(link netlink.Link, master *netlink.Bridge) error
	// LinkSetName sets the interface name
	LinkSetName(link netlink.Link, name string) error
	// LinkSetUp is equivalent to `ip link set $link up`
	LinkSetUp(link netlink.Link) error
	// LinkSetHardwareAddr sets the hardware address of the link device. Equivalent to: `ip link set $link address $hwaddr`
	LinkSetHardwareAddr(link netlink.Link, hwaddr net.HardwareAddr) error
	// LinkSetMTU is equivalent to `ip link set $link mtu $mtu`
	LinkSetMTU(link netlink.Link, mtu int) error
	// LinkList is equivalent to: `ip link show`
	LinkList() ([]netlink.Link, error)
	// LinkSetDown is equivalent to: `ip link set $link down`
	LinkSetDown(link netlink.Link) error
	// RouteList gets a list of routes in the system.
	RouteList(link netlink.Link, family int) ([]netlink.Route, error)
	// RouteAdd will add a route to the route table
	RouteAdd(route *netlink.Route) error
	// RouteDel is equivalent to `ip route del`
	RouteDel(route *netlink.Route) error
}

type netLink struct {
}

// NewNetLink creates a new NetLink object
func NewNetLink() NetLink {
	return &netLink{}
}
func (*netLink) LinkSetMaster(link netlink.Link, master *netlink.Bridge) error {
	return netlink.LinkSetMaster(link, master)
}
func (*netLink) LinkAdd(link netlink.Link) error {
	return netlink.LinkAdd(link)
}

func (*netLink) LinkByName(name string) (netlink.Link, error) {
	return netlink.LinkByName(name)
}

func (*netLink) LinkSetNsFd(link netlink.Link, fd int) error {
	return netlink.LinkSetNsFd(link, fd)
}

func (*netLink) ParseAddr(s string) (*netlink.Addr, error) {
	return netlink.ParseAddr(s)
}

func (*netLink) AddrAdd(link netlink.Link, addr *netlink.Addr) error {
	return netlink.AddrAdd(link, addr)
}

func (*netLink) LinkSetUp(link netlink.Link) error {
	return netlink.LinkSetUp(link)
}

func (*netLink) LinkSetName(link netlink.Link, name string) error {
	return netlink.LinkSetName(link, name)
}

func (*netLink) LinkSetHardwareAddr(link netlink.Link, hwaddr net.HardwareAddr) error {
	return netlink.LinkSetHardwareAddr(link, hwaddr)
}

func (*netLink) LinkSetMTU(link netlink.Link, mtu int) error {
	return netlink.LinkSetMTU(link, mtu)
}

func (*netLink) LinkList() ([]netlink.Link, error) {
	return netlink.LinkList()
}

func (*netLink) LinkSetDown(link netlink.Link) error {
	return netlink.LinkSetDown(link)
}

func (*netLink) RouteList(link netlink.Link, family int) ([]netlink.Route, error) {
	return netlink.RouteList(link, family)
}

func (*netLink) RouteAdd(route *netlink.Route) error {
	return netlink.RouteAdd(route)
}

func (*netLink) RouteDel(route *netlink.Route) error {
	return netlink.RouteDel(route)
}

func (*netLink) AddrList(link netlink.Link, family int) ([]netlink.Addr, error) {
	return netlink.AddrList(link, family)
}