package app

import (
	"fmt"
	"strings"

	"bee/audit/internal/platform"
)

func (a *App) ListInterfaces() ([]platform.InterfaceInfo, error) {
	return a.network.ListInterfaces()
}

func (a *App) DefaultRoute() string {
	return a.network.DefaultRoute()
}

func (a *App) DHCPOne(iface string) (string, error) {
	return a.network.DHCPOne(iface)
}

func (a *App) DHCPOneResult(iface string) (ActionResult, error) {
	body, err := a.network.DHCPOne(iface)
	return ActionResult{Title: "DHCP: " + iface, Body: bodyOr(body, "DHCP completed.")}, err
}

func (a *App) DHCPAll() (string, error) {
	return a.network.DHCPAll()
}

func (a *App) DHCPAllResult() (ActionResult, error) {
	body, err := a.network.DHCPAll()
	return ActionResult{Title: "DHCP: all interfaces", Body: bodyOr(body, "DHCP completed.")}, err
}

func (a *App) SetStaticIPv4(cfg platform.StaticIPv4Config) (string, error) {
	return a.network.SetStaticIPv4(cfg)
}

func (a *App) SetInterfaceState(iface string, up bool) error {
	return a.network.SetInterfaceState(iface, up)
}

func (a *App) GetInterfaceState(iface string) (bool, error) {
	return a.network.GetInterfaceState(iface)
}

func (a *App) CaptureNetworkSnapshot() (platform.NetworkSnapshot, error) {
	return a.network.CaptureNetworkSnapshot()
}

func (a *App) RestoreNetworkSnapshot(snapshot platform.NetworkSnapshot) error {
	return a.network.RestoreNetworkSnapshot(snapshot)
}

func (a *App) SetStaticIPv4Result(cfg platform.StaticIPv4Config) (ActionResult, error) {
	body, err := a.network.SetStaticIPv4(cfg)
	return ActionResult{Title: "Static IPv4: " + cfg.Interface, Body: bodyOr(body, "Static IPv4 updated.")}, err
}

func (a *App) NetworkStatus() (ActionResult, error) {
	ifaces, err := a.network.ListInterfaces()
	if err != nil {
		return ActionResult{Title: "Network status"}, err
	}
	if len(ifaces) == 0 {
		return ActionResult{Title: "Network status", Body: "No physical interfaces found."}, nil
	}
	var body strings.Builder
	for _, iface := range ifaces {
		ipv4 := "(no IPv4)"
		if len(iface.IPv4) > 0 {
			ipv4 = strings.Join(iface.IPv4, ", ")
		}
		fmt.Fprintf(&body, "- %s: state=%s ip=%s\n", iface.Name, iface.State, ipv4)
	}
	if gw := a.network.DefaultRoute(); gw != "" {
		fmt.Fprintf(&body, "\nDefault route: %s\n", gw)
	}
	return ActionResult{Title: "Network status", Body: strings.TrimSpace(body.String())}, nil
}

func (a *App) DefaultStaticIPv4FormFields(iface string) []string {
	return []string{
		"",
		"24",
		strings.TrimSpace(a.network.DefaultRoute()),
		"77.88.8.8 77.88.8.1 1.1.1.1 8.8.8.8",
	}
}

func (a *App) ParseStaticIPv4Config(iface string, fields []string) platform.StaticIPv4Config {
	get := func(index int) string {
		if index >= 0 && index < len(fields) {
			return strings.TrimSpace(fields[index])
		}
		return ""
	}
	return platform.StaticIPv4Config{
		Interface: iface,
		Address:   get(0),
		Prefix:    get(1),
		Gateway:   get(2),
		DNS:       strings.Fields(get(3)),
	}
}