import XCTest
@testable import RouterOSAssistant

final class RouterOSCommandBuilderTests: XCTestCase {
    func testWanDhcpClientCommand() {
        let config = WanConfig(interfaceName: "ether1", mode: .dhcpClient)
        let commands = config.buildCommands()

        XCTAssertEqual(commands.count, 1)
        XCTAssertEqual(commands[0].menuPath, "/ip dhcp-client")
        XCTAssertEqual(commands[0].operation, .add)
        XCTAssertEqual(commands[0].arguments["interface"], "ether1")
    }

    func testWanStaticIPCommandsIncludeRouteOnlyWhenGatewayGiven() {
        var config = WanConfig(interfaceName: "ether1", mode: .staticIP)
        config.staticAddress = "203.0.113.5/24"

        XCTAssertEqual(config.buildCommands().count, 1)

        config.staticGateway = "203.0.113.1"
        let commands = config.buildCommands()

        XCTAssertEqual(commands.count, 2)
        XCTAssertEqual(commands[0].arguments["address"], "203.0.113.5/24")
        XCTAssertEqual(commands[1].arguments["gateway"], "203.0.113.1")
    }

    func testWanPppoeCommand() {
        var config = WanConfig(interfaceName: "ether1", mode: .pppoe)
        config.pppoeUsername = "user@isp"
        config.pppoePassword = "secret"

        let commands = config.buildCommands()

        XCTAssertEqual(commands.count, 1)
        XCTAssertEqual(commands[0].menuPath, "/interface pppoe-client")
        XCTAssertEqual(commands[0].arguments["user"], "user@isp")
        XCTAssertEqual(commands[0].arguments["password"], "secret")
    }

    func testLanDhcpCommandsCoverAddressPoolServerAndNetwork() {
        // Address fields default to "" now (Nutzerwunsch, 2026-09-16: fields start empty,
        // showing only the format example) — set explicitly here so this test keeps verifying
        // the command-building logic itself, not incidentally the model's old default values.
        var config = LanDhcpConfig()
        config.networkAddress = "192.168.88.0/24"
        config.routerAddress = "192.168.88.1/24"
        config.poolRangeStart = "192.168.88.10"
        config.poolRangeEnd = "192.168.88.254"
        config.dnsServers = "192.168.88.1"
        let commands = config.buildCommands()

        XCTAssertEqual(commands.count, 6)
        XCTAssertEqual(commands[0].menuPath, "/ip address")
        XCTAssertEqual(commands[1].menuPath, "/ip pool")
        XCTAssertEqual(commands[2].menuPath, "/ip dhcp-server")
        XCTAssertEqual(commands[3].menuPath, "/ip dhcp-server network")
        XCTAssertEqual(commands[3].arguments["gateway"], "192.168.88.1")
        XCTAssertEqual(commands[4].menuPath, "/interface list")
        XCTAssertEqual(commands[4].arguments["name"], "LAN")
        XCTAssertEqual(commands[5].menuPath, "/interface list member")
        XCTAssertEqual(commands[5].arguments["list"], "LAN")
        XCTAssertEqual(commands[5].arguments["interface"], "bridge")
    }

    func testLanDhcpCommandsDetachInterfaceFromBridgeWhenNotDefaultBridge() {
        var config = LanDhcpConfig()
        config.interfaceName = "ether4"
        let commands = config.buildCommands()

        XCTAssertEqual(commands.count, 7)
        XCTAssertEqual(commands[0].menuPath, "/interface bridge port")
        XCTAssertEqual(commands[0].operation, .remove(matchField: "interface", matchValue: "ether4"))
        XCTAssertEqual(commands[1].menuPath, "/ip address")
    }

    func testCliLineRendersEmptyValueAsExplicitEmptyQuotes() {
        let command = RouterOSCommand.set(
            menuPath: "/ip route",
            restPath: "ip/route",
            matchField: ".id",
            matchValue: "*1",
            arguments: ["comment": ""],
            summary: "test"
        )

        XCTAssertEqual(command.cliLine, "/ip route set [find .id=*1] comment=\"\"")
    }

    func testCliLineRendersSortedQuotedArgumentsForAdd() {
        let command = RouterOSCommand.add(
            menuPath: "/interface pppoe-client",
            restPath: "interface/pppoe-client",
            arguments: ["user": "user@isp", "password": "a secret"],
            summary: "test"
        )

        XCTAssertEqual(command.cliLine, "/interface pppoe-client add password=\"a secret\" user=user@isp")
    }

    func testCliLineRendersFindLookupForSet() {
        let command = RouterOSCommand.set(
            menuPath: "/interface wireless",
            restPath: "interface/wireless",
            matchField: "name",
            matchValue: "wlan1",
            arguments: ["ssid": "Home"],
            summary: "test"
        )

        XCTAssertEqual(command.cliLine, "/interface wireless set [find name=wlan1] ssid=Home")
    }

    func testCliLineRendersFindLookupForAction() {
        let command = RouterOSCommand.action(
            menuPath: "/ip dhcp-server lease",
            restPath: "ip/dhcp-server/lease",
            name: "make-static",
            matchField: ".id",
            matchValue: "*7",
            summary: "test"
        )

        XCTAssertEqual(command.cliLine, "/ip dhcp-server lease make-static [find .id=*7]")
    }
}