package SystemInfo

import (
	pb "AudioPlayer/gRPC_Model"
	"context"
	nmcli_go "github.com/KunMengcode/nmcli-go"
	"github.com/KunMengcode/nmcli-go/connection"
	"github.com/KunMengcode/nmcli-go/device"
	"strings"
)

type NMCliServer struct {
	pb.UnimplementedNetworkManagerServer
	nmcli *nmcli_go.NMCli
}

func (s *NMCliServer) Open() {
	cli := nmcli_go.NewNMCli()
	s.nmcli = &cli
}

func (s *NMCliServer) CreateHotspot(c context.Context, in *pb.Hotspot) (*pb.Empty, error) {
	_, err := s.nmcli.Device.WiFiHotspotCreate(context.Background(), device.WiFiHotspotCreateOptions{
		Ifname:   in.IfName,
		Con_name: "hotspot",
		SSID:     in.SSID,
		Password: in.Password,
	})
	if err != nil {
		return nil, err
	}
	return &pb.Empty{}, nil
}

func (s *NMCliServer) ChangeHotspot(c context.Context, in *pb.Hotspot) (*pb.Empty, error) {
	_, err := s.nmcli.Connection.Modify(context.Background(), false, "hotspot", map[string]string{
		"802-11-wireless.ssid":         in.SSID,
		"802-11-wireless-security.psk": in.Password,
	})
	if err != nil {
		return &pb.Empty{}, err
	}
	_, err = s.OpenHotspot(c, &pb.Empty{})
	if err != nil {
		return &pb.Empty{}, err
	}
	return &pb.Empty{}, nil
}

func (s *NMCliServer) OpenHotspot(c context.Context, in *pb.Empty) (*pb.Empty, error) {
	_, err := s.nmcli.Connection.Up(context.Background(), "hotspot", connection.UpOptions{})
	if err != nil {
		return &pb.Empty{}, err
	}
	return &pb.Empty{}, nil
}

func (s *NMCliServer) HotspotInfo(c context.Context, in *pb.Empty) (*pb.Hotspot, error) {
	show, err := s.nmcli.Connection.Show(context.Background(), "hotspot")
	if err != nil {
		return &pb.Hotspot{}, err
	}
	return &pb.Hotspot{
		SSID:     show["802-11-wireless"][0][0],
		Password: show["802-11-wireless-security"][0][14],
	}, nil
}

func (s *NMCliServer) DeviceStatus(c context.Context, in *pb.Empty) (FiltrationState *pb.NetworkManagerDeviceStatusList, err error) {
	// 初始化返回值
	filtrationState := &pb.NetworkManagerDeviceStatusList{}

	// 获取设备状态
	state, err := s.nmcli.Device.Status(c)
	if err != nil {
		return filtrationState, err
	}

	// 遍历设备状态，过滤掉 loopback 设备
	for _, v := range state {
		if v.Device == "lo" {
			continue
		}
		// 添加设备信息到返回值列表
		filtrationState.Value = append(filtrationState.Value, &pb.NetworkManagerDeviceStatus{
			Device:          v.Device,
			Type:            v.Type,
			State:           v.State,
			IP4Connectivity: v.IP4Connectivity,
			IP6Connectivity: v.IP6Connectivity,
			Connection:      v.Connection,
			ConUUID:         v.ConUUID,
		})
	}

	return filtrationState, nil
}

func (s *NMCliServer) EthernetSetStaticIP(c context.Context, in *pb.Ethernet) (*pb.Empty, error) {
	_, err := s.nmcli.Connection.Modify(context.Background(), false, *in.Id, map[string]string{
		"ipv4.addresses": in.Ipv4Addresses,
		"ipv4.method":    *in.Ipv4Method,
		"ipv4.dns":       strings.Join(in.DNS, ","),
		"ipv4.gateway":   in.Gateway,
	})
	if err != nil {
		return &pb.Empty{}, err
	}
	_, err = s.nmcli.Connection.Up(context.Background(), *in.Id, connection.UpOptions{})
	if err != nil {
		return &pb.Empty{}, err
	}
	return &pb.Empty{}, nil
}

func (s *NMCliServer) EthernetInfo(c context.Context, in *pb.DeviceInterfaceName) (*pb.Ethernet, error) {
	if in.Value == "" {
		in.Value = "enp4s0"
	}
	show, err := s.nmcli.Device.Show(context.Background(), in.Value)
	if err != nil {
		return &pb.Ethernet{}, err
	}
	return &pb.Ethernet{
		MacAddress:    &show[0]["GENERAL"][0][9],
		Ipv4Addresses: show[0]["IP4"][0][0],
		Gateway:       show[0]["IP4"][0][1],
		DNS:           strings.Split(show[0]["IP4"][0][3], " | "),
	}, nil
}