package s6netdev

import (
	"net"
	"net/netip"
)

type (
	RouteTable uint16
	Metric     uint32
	VLAN       uint16
)

type Property struct {
	Key, Value, Default string
}

type Sysctl_IP struct {
	V4, V6 []Property
}

type DHCP_IP struct {
	V4, V6 bool // Should we start dhcp on this interface?
}

type Iface struct {
	Name   string        // Interface name
	Type   *NetdevIfType // Type of interface
	Slaves []*Iface      // Slaves for VRFs, Bridges and Bonds etc...

	VlanId VLAN   // VLAN id for VLAN interfaces
	Parent *Iface // Parent interface for VLAN interfaces

	Table RouteTable // Routing table, for VRF

	MACAddr net.HardwareAddr // MAC address of interface (only valid for physical, bridges and VLAN)

	Addresses []netip.Prefix // Addresses to be assigned to interface
	Routes    []Route        // Routes to be assigned to interface

	DHCP DHCP_IP // Should we start dhcp on this interface?

	Properties []Property // List of properties of the interface, valid for many
	Sysctls    Sysctl_IP  // Sysctls associated with this interface
}

type Route struct {
	Default bool
	// VRF would be a field but it can be derived from parent
	Type   string // unicast default, can be others
	IPver  int    // if 0, will guess based on Net
	Net    netip.Prefix
	Via    netip.Addr
	Vrf    *Iface
	Table  *RouteTable
	Metric Metric // Should be explicitly initialised to 1024
}

type NetdevIfType struct {
	str  string
	deps []S6SvcName
}

var NetdevIfTypes = struct {
	Phys, Loopback, Bridge, Vlan, Wireguard, Bond, Vrf NetdevIfType
}{
	Phys:      NetdevIfType{"", []S6SvcName{"bundle.hw-coldplug"}},
	Loopback:  NetdevIfType{"loopback", []S6SvcName{}},
	Bridge:    NetdevIfType{"bridge", []S6SvcName{"module.bridge"}},
	Vlan:      NetdevIfType{"vlan", []S6SvcName{"module.8021q"}},
	Wireguard: NetdevIfType{"wireguard", []S6SvcName{"module.wireguard"}},
	Bond:      NetdevIfType{"bond", []S6SvcName{"module.bonding"}},
	Vrf:       NetdevIfType{"vrf", []S6SvcName{"module.vrf"}},
}