package main

import (
	// "net/netip"
	"fmt"
	"log"
	"net"
	"os"

	"git.redxen.eu/nnd/s6-netdev"
)

func main() {
	var (
		err error
		l   = log.New(os.Stderr, "s6-netdev: ", log.Ltime|log.Lshortfile|log.Lmsgprefix)
		ifs = make(s6netdev.IfMap)
	)
	t := s6netdev.S6NewTree()

	// Loopback
	ifs.AddIf(&s6netdev.Iface{
		Name: "lo",
		Type: &s6netdev.NetdevIfTypes.Loopback,
	})

	// Physical bridged interfaces
	ifs.AddIf(&s6netdev.Iface{
		Name: "enp4s0",
		Type: &s6netdev.NetdevIfTypes.Phys,
	})

	// Bridge interfaces
	ifs.AddIf(&s6netdev.Iface{
		Name:    "phys",
		Type:    &s6netdev.NetdevIfTypes.Bridge,
		MACAddr: net.HardwareAddr{0x24, 0x4b, 0xfe, 0x52, 0x51, 0xac},
		DHCP:    s6netdev.DHCP_IP{V4: true},
		Properties: []s6netdev.Property{
			{Key: "stp_state", Value: "0", Default: "0"},
			{Key: "mcast_snooping", Value: "0", Default: "1"},
		},
		Sysctls: s6netdev.Sysctl_IP{
			V6: []s6netdev.Property{
				{Key: "forwarding", Value: "0", Default: "0"},
			},
		},
	})
	// Bridge interfaces
	ifs.AddIf(&s6netdev.Iface{
		Name:    "phys",
		Type:    &s6netdev.NetdevIfTypes.Bridge,
		MACAddr: net.HardwareAddr{0x24, 0x4b, 0xfe, 0x52, 0x51, 0xac},
		DHCP:    s6netdev.DHCP_IP{V4: true},
		Properties: []s6netdev.Property{
			{Key: "stp_state", Value: "0", Default: "0"},
			{Key: "mcast_snooping", Value: "0", Default: "1"},
		},
		Sysctls: s6netdev.Sysctl_IP{
			V6: []s6netdev.Property{
				{Key: "forwarding", Value: "0", Default: "0"},
			},
		},
	})
	ifs.AddIf(&s6netdev.Iface{
		Name:    "b00b",
		Type:    &s6netdev.NetdevIfTypes.Bridge,
		MACAddr: net.HardwareAddr{0x24, 0x4b, 0xfe, 0x52, 0x51, 0xac},
		Properties: []s6netdev.Property{
			{Key: "stp_state", Value: "0", Default: "0"},
			{Key: "mcast_snooping", Value: "0", Default: "1"},
		},
		Sysctls: s6netdev.Sysctl_IP{
			V6: []s6netdev.Property{
				{Key: "forwarding", Value: "0", Default: "0"},
			},
		},
	})

	// VLAN Interfaces
	ifs.AddIf(&s6netdev.Iface{
		Name:   fmt.Sprintf("enp4s0.%d", 66),
		Type:   &s6netdev.NetdevIfTypes.Vlan,
		VlanId: s6netdev.VLAN(66),
	})
	// Parent of VLANs
	ifs[fmt.Sprintf("enp4s0.%d", 66)].Parent = ifs["enp4s0"]

	for _, m := range []struct {
		Master string
		Slaves []string
	}{
		{
			Master: "phys",
			Slaves: []string{
				"enp4s0",
			},
		},
		{
			Master: "b00b",
			Slaves: []string{
				"enp4s0.66",
			},
		},
	} {
		master := ifs[m.Master]
		for _, slave := range m.Slaves {
			master.Slaves = append(master.Slaves, ifs[slave])
		}
		ifs[m.Master] = master
	}

	for _, v := range ifs {
		t.Services(*v)
	}

	for _, v := range t.S6Services() {
		if s6netdev.NetdevIsDummy(v.Name) {
			continue
		}
		l.Printf("Commiting %s\n", v.Name)
		if err = t.S6CommitService(v); err != nil {
			l.Fatalf("Failed to commit %s, %s\n", v.Name, err)
		}
	}
}