#if os(macOS)
import SwiftUI

// 原生 macOS 登录：以 Commilitia 账户（Auth Broker）登录为主，免相机——ASWebAuthenticationSession
// 弹系统授权窗，回调经 cdrop:// 回到 app（见 BrokerLogin / AuthManager.startBrokerLogin）。不复用
// iOS 的 LoginView（其二维码 / UIImage 路径为 iOS 专属，且没人扫 Mac 屏幕来登录 Mac 自己）。
struct MacLoginView: View
{
    @Environment(AuthManager.self) private var auth
    @State private var busy = false

    var body: some View
    {
        VStack(spacing: 20)
        {
            Image(systemName: "paperplane.fill")
                .font(.system(size: 52))
                .foregroundStyle(.tint)
            Text("Commilitia Drop")
                .font(.largeTitle.weight(.semibold))
            Text("跨设备直连传输与云剪贴板")
                .font(.callout)
                .foregroundStyle(.secondary)

            Button
            {
                busy = true
                Task
                {
                    await auth.startBrokerLogin()
                    busy = false
                }
            }
            label:
            {
                Text(busy ? "登录中…" : "使用 Commilitia 账户登录")
                    .frame(maxWidth: 260)
            }
            .controlSize(.large)
            .buttonStyle(.borderedProminent)
            .disabled(busy)

            if !auth.statusText.isEmpty
            {
                Text(auth.statusText)
                    .font(.caption)
                    .foregroundStyle(.secondary)
            }
        }
        .padding(40)
        .frame(maxWidth: .infinity, maxHeight: .infinity)
    }
}
#endif