RouterOS/RouterOSAssistant/Core/Models/WanConfig.swift

import Foundation

enum WanConnectionMode: String, CaseIterable, Identifiable {
    case dhcpClient
    case staticIP
    case pppoe

    var id: String { rawValue }

    var label: String {
        switch self {
        case .dhcpClient: return "Automatisch (DHCP)"
        case .staticIP: return "Statische IP-Adresse"
        case .pppoe: return "PPPoE (DSL-Zugangsdaten)"
        }
    }
}

struct WanConfig: Equatable {
    var interfaceName: String
    var mode: WanConnectionMode = .dhcpClient
    var staticAddress: String = ""
    var staticGateway: String = ""
    var pppoeUsername: String = ""
    var pppoePassword: String = ""

    /// RouterOS commands for this WAN setup. Standard, long-stable RouterOS CLI syntax —
    /// not yet verified against a live device; the Review-step shows every command before
    /// it runs so this can be caught before anything is applied.
    func buildCommands() -> [RouterOSCommand] {
        switch mode {
        case .dhcpClient:
            return [
                RouterOSCommand(
                    cliPath: "/ip dhcp-client add",
                    restPath: "ip/dhcp-client",
                    arguments: ["interface": interfaceName, "disabled": "no"],
                    summary: "Internetadresse auf \(interfaceName) automatisch beziehen (DHCP-Client)"
                )
            ]
        case .staticIP:
            var commands = [
                RouterOSCommand(
                    cliPath: "/ip address add",
                    restPath: "ip/address",
                    arguments: ["address": staticAddress, "interface": interfaceName],
                    summary: "Statische IP-Adresse \(staticAddress) auf \(interfaceName) setzen"
                )
            ]
            if !staticGateway.isEmpty {
                commands.append(
                    RouterOSCommand(
                        cliPath: "/ip route add",
                        restPath: "ip/route",
                        arguments: ["gateway": staticGateway],
                        summary: "Standard-Route über \(staticGateway) einrichten"
                    )
                )
            }
            return commands
        case .pppoe:
            return [
                RouterOSCommand(
                    cliPath: "/interface pppoe-client add",
                    restPath: "interface/pppoe-client",
                    arguments: [
                        "interface": interfaceName,
                        "user": pppoeUsername,
                        "password": pppoePassword,
                        "disabled": "no"
                    ],
                    summary: "PPPoE-Internetverbindung auf \(interfaceName) mit Zugangsdaten deines Anbieters einrichten"
                )
            ]
        }
    }
}