#if DEBUG
import Foundation
import UIKit

/// 无头 UI 验证脚手架（仅 DEBUG）。
///
/// 本项目的构建机没有 GUI，每屏都靠 `simctl io screenshot` 取证对拍设计稿；而设计稿里的
/// 首页会话卡、轨道多主机头像、状态徽标都需要**多条已连接会话**才有内容。用真实主机验证既慢
/// 又依赖即时凭据，故提供这条假会话通道：只灌示意输出到 in-memory 终端，**不建任何传输连接**。
///
/// 用法：`xcrun simctl launch <UDID> ai.athom.terminalx --args -txUIFixture 1`
/// 真实端到端回归仍走 `-txHost/-txUser/-txPass`（见 CLAUDE.md 启动参数表），二者互斥。
enum UIPreviewFixture {
    /// 三条会话对应设计稿 `1e 主机-会话卡` 的三张卡（直连 / 经 tsnet / 重连中）。
    /// `name` 与 `hosts` 里的主机同名 → 会话复用同一 `SavedHost.id`，主机卡才能亮「已有会话」。
    struct Spec {
        let name: String
        let link: LinkState
        let tmux: TmuxSummary?
        let lines: [String]
    }

    /// 假 Tailscale 出口 id（只为让主机卡亮 tsnet 徽章；fixture 不建连接）。
    static let fixtureTailnetID = UUID(uuidString: "00000000-0000-0000-0000-0000000000FE")!

    /// 示意 tailnet（首页副行 + 侧边栏脚的状态）。只进内存，不写盘。
    static let tailnets: [TailscaleConnection] = [
        TailscaleConnection(id: fixtureTailnetID, name: "athom.ts.net",
                            hostname: "ipad-pro", needsAuthKey: false, lastSelfIP: "100.92.14.7"),
    ]

    /// 首页「全部主机」的示意主机（对拍设计稿 `1e` 的 7 台 + 添加卡）。只进内存，不写盘。
    static let hosts: [SavedHost] = [
        SavedHost(name: "mac-studio", host: "100.71.203.4", useMosh: true,
                  auth: .inlinePassword(username: "yz", password: ""),
                  tailscaleID: fixtureTailnetID, group: "生产", os: "macOS · M4 Max"),
        SavedHost(name: "ubuntu-cn2", host: "100.88.9.61", useMosh: true,
                  auth: .inlinePassword(username: "yz", password: ""),
                  tailscaleID: fixtureTailnetID, group: "云", os: "Ubuntu 26.04"),
        SavedHost(name: "edge-sg1", host: "10.1.2.11", useMosh: false,
                  auth: .inlinePassword(username: "root", password: ""),
                  tailscaleID: fixtureTailnetID, group: "云", os: "Debian 13"),
        SavedHost(name: "edge-sg2", host: "10.1.2.12", useMosh: false,
                  auth: .inlinePassword(username: "root", password: ""),
                  group: "云", os: "Debian 13"),
        SavedHost(name: "nas-home", host: "100.104.2.18", useMosh: true,
                  auth: .inlinePassword(username: "admin", password: ""),
                  group: "家里", os: "TrueNAS"),
        SavedHost(name: "pi-lab", host: "192.168.1.31", useMosh: false,
                  auth: .inlinePassword(username: "pi", password: ""),
                  group: "家里", os: "Raspberry Pi OS"),
        SavedHost(name: "mosh-lab", host: "192.168.1.44", useMosh: true,
                  auth: .inlinePassword(username: "yz", password: ""),
                  group: "家里", os: "Fedora 44"),
    ]

    static let specs: [Spec] = [
        Spec(name: "mac-studio", link: .direct,
             tmux: TmuxSummary(name: "dev", windows: 3, panes: 4, currentTitle: "运行测试"), lines: [
            "→ terminalx git:(main) git fetch --all --prune",
            "Fetching origin … done",
            "→ terminalx git:(main) swiftformat --lint Sources",
            "✓ 0 issues in 84 files",
            "→ terminalx git:(main) swift build -c release --arch arm64",
            "[142/142] Compiling TXCore",
            "✓ build complete (14.2s)",
            "→ terminalx git:(main) swift test --package-path packages/TXCore",
            "◇ Test run started.",
            "  ✔ parses %output escaped octal",
            "  ✔ layout diff keeps pane identity",
            "  ✔ host-key pin survives wipe",
            "◇ 50 tests passed after 0.412s",
            "→ terminalx git:(main) xcodegen generate --spec project.yml",
            "✅ Created TerminalX.xcodeproj",
            "→ terminalx git:(main) xcodebuild -scheme TerminalX build",
            "** BUILD SUCCEEDED **",
            "→ terminalx git:(main) git status --short",
            " M apps/TerminalX/iOS/RailSidebar.swift",
            " M apps/TerminalX/iOS/HomeView.swift",
            "?? docs/design/UI-DESIGN-HANDOFF.md",
            "→ terminalx git:(main) scripts/tx-shot.sh /tmp/v3.png",
            "  pixelWidth: 2752",
            "  pixelHeight: 2064",
            "→ terminalx git:(main) swift test --package-path packages/TXCore",
            "◇ 50 tests passed after 0.398s",
            "→ terminalx git:(main) tmux ls",
            "dev: 3 windows (created Fri 09:12:03)",
            "scratch: 1 windows (created Tue)",
            "→ terminalx git:(main) tailscale status | head -3",
            "100.71.203.4  mac-studio  direct",
            "100.88.9.61   ubuntu-cn2  relay hkg",
            "→ terminalx git:(main) ",
        ]),
        Spec(name: "ubuntu-cn2", link: .relay,
             tmux: TmuxSummary(name: "build", windows: 1, panes: 1, currentTitle: "集成测试"), lines: [
            "→ cn2 ~ journalctl -u build-runner -n 3 --no-pager",
            "12:05:02 Started build-runner@42",
            "12:06:02 build-runner@42 succeeded",
            "→ cn2 ~ systemctl status build-runner --no-pager",
            "● build-runner.service — active (running)",
            "    since Fri 09:12:03 CST; 2h 54min ago",
            "→ cn2 ~ ninja -C build -j 8",
            "[148/148] Linking libmosh-core.a",
            "✓ ninja: no work to do.",
            "→ cn2 ~ tailscale netcheck | head -5",
            "  * UDP: true",
            "  * IPv4: yes",
            "  * UPnP: false",
            "→ cn2 ~ ./run-integration.sh --tsnet",
            "▸ joining tailnet as ci-runner…",
            "▸ peer enumeration: 7 nodes",
            "▸ mosh relay loopback:60122 ⇄ tsnet",
            "▸ handshake ok, AES-OCB session up",
            "  roaming: peer addr switched",
            "  resume ok in 1.8s, 0 bytes lost",
            "  suspend 90s → wake",
            "  resume ok in 2.4s",
            "▸ 14/14 passed",
            "→ cn2 ~ df -h /tank | tail -1",
            "tank   187T   217T  7.87  42%",
            "→ cn2 ~ ",
        ]),
        Spec(name: "nas-home", link: .reconnecting(attempt: 3), tmux: nil, lines: [
            "nas ~ $ zfs get compressratio tank",
            "tank  compressratio  1.34x",
            "nas ~ $ docker ps --format 'table {{.Names}}'",
            "NAMES     STATUS",
            "plex      Up 6 days",
            "syncthing Up 6 days",
            "nas ~ $ uname -sr",
            "Linux 6.12.9-truenas",
            "nas ~ $ zpool status -x",
            "  all pools are healthy",
            "nas ~ $ df -h /tank",
            "Filesystem  Size  Used Avail Use%",
            "tank        187T  217T 7.87  42%",
            "nas ~ $ zfs list -t snapshot | tail -3",
            "tank/media@auto-2026-07-24  1.2G",
            "tank/docs@auto-2026-07-24   318M",
            "tank/vm@auto-2026-07-24     2.4G",
            "nas ~ $ smartctl -H /dev/sda | tail -2",
            "SMART overall-health: PASSED",
            "nas ~ $ systemctl is-active smbd nfs-server",
            "active",
            "active",
            "nas ~ $ tail -2 /var/log/messages",
            "12:04:31 nas kernel: wlan0 rssi -74",
            "12:06:20 nas tailscaled: peer offline",
            "nas ~ $ ",
        ]),
    ]

    /// 把启动参数拼成一台主机（供 `-txOpenAsHost 1` 走真实的「点主机连接」路径）。
    static func hostFromLaunchArgs() -> SavedHost? {
        let d = UserDefaults.standard
        guard let host = d.string(forKey: "txHost"), !host.isEmpty,
              let user = d.string(forKey: "txUser") else { return nil }
        let port = d.integer(forKey: "txPort")
        return SavedHost(
            name: host, host: host, port: port == 0 ? 22 : port,
            useMosh: d.bool(forKey: "txMosh"),
            useTmux: d.object(forKey: "txTmux") == nil ? true : d.bool(forKey: "txTmux"),
            tmuxSession: d.string(forKey: "txTmuxSession"),
            auth: .inlinePassword(username: user, password: d.string(forKey: "txPass") ?? ""))
    }

    /// 是否启用（启动参数 `-txUIFixture 1`）。
    static var isEnabled: Bool {
        UserDefaults.standard.bool(forKey: "txUIFixture")
    }

    /// 无头导航驱动：`xcrun simctl openurl <UDID> "terminalx://ui/<动作>"`。
    ///
    /// 为什么不用坐标点击：本环境没有 GUI，idb companion 不可用；而坐标点击还会随布局改动失效。
    /// 走 URL 直接驱动 `AppRouter`/`SessionManager` 的公开语义，既稳定又正是要验的那条路径。
    ///
    /// 支持：`home` · `minimize` · `close`(弹确认) · `close-now`(直接关)
    /// · `pick/<会话名>` · `pick-new/<名>` · `pick-native`（连接前的会话选择器）
    /// · `dismiss` · `session/<序号>`（1 起，按首页卡片顺序）· `sidebar/toggle|pin`
    /// （`resize/<cols>` 已随「pane 拖拽调宽」一起删除 —— pane 尺寸交给 tmux 自己。）
    @MainActor
    static func handle(uiCommand path: [String], manager: SessionManager, router: AppRouter) -> Bool {
        switch path.first {
        case "home":
            router.goHome()
        case "minimize":
            if let id = router.route.sessionID { manager.minimize(id); router.goHome() }
        case "close":
            // 与红点一致：弹确认对话框（真正关闭要在对话框里选）。
            guard router.route.sessionID != nil else { return false }
            router.present(.closeConfirm)
        case "close-now":
            // 跳过确认直接关（回归脚本用）。
            if let id = router.route.sessionID { router.goHome(); manager.close(id) }
        case "dismiss":
            router.dismissModal()
        case "pick":
            // 会话选择器：attach 指定会话（`ui/pick/<name>`）。此时通常还在首页，故优先取待选择的会话。
            guard let s = manager.sessionAwaitingChoice ?? router.route.sessionID.flatMap(manager.session),
                  let name = path.dropFirst().first else { return false }
            s.attachTmuxSession(name)
        case "pick-new":
            guard let s = manager.sessionAwaitingChoice ?? router.route.sessionID.flatMap(manager.session)
            else { return false }
            s.createTmuxSession(path.dropFirst().first ?? "main")
        case "pick-native":
            // 选择器里的「原生终端」。会话可能还没进终端页，故不依赖 route。
            guard let s = manager.sessionAwaitingChoice ?? router.route.sessionID.flatMap(manager.session)
            else { return false }
            s.useNativeTerminal()
        case "session":
            guard let n = path.dropFirst().first.flatMap(Int.init),
                  let s = manager.session(atShortcutIndex: n - 1) else { return false }
            manager.activate(s)
            router.enter(s.id)
        case "sidebar":
            // 悬浮态已砍（用户裁决）：只剩收起⇄固定，pin 与 toggle 同义（兼容旧脚本）。
            router.toggleSidebar()
        default:
            return false
        }
        NSLog("TXUI cmd=\(path.joined(separator: "/")) route=\(router.route) sidebar=\(router.sidebar)")
        return true
    }

    /// 无头验证强制横屏（`-txLandscape 1`）。
    ///
    /// 没有 GUI 时模拟器起来是竖屏，而设计基准是 iPad Pro 13″ 横屏 1366×1024；`simctl` 没有旋转
    /// 能力，故用 iOS 16+ 的 `requestGeometryUpdate` 由 app 侧请求方向，让 `simctl io screenshot`
    /// 取到横屏帧。仅 DEBUG，生产路径不碰方向（用户可自由旋转）。
    @MainActor
    static func forceLandscapeIfRequested() {
        guard UserDefaults.standard.bool(forKey: "txLandscape") else { return }
        guard let scene = UIApplication.shared.connectedScenes.first as? UIWindowScene else { return }
        scene.requestGeometryUpdate(.iOS(interfaceOrientations: .landscapeRight)) { error in
            NSLog("TXUI landscape request failed: \(error.localizedDescription)")
        }
    }
}
#endif