import SwiftUI
import RastrilloNative

@main
struct Companion: App {
    var body: some Scene {
        WindowGroup { CompanionView() }
    }
}

@MainActor
final class CompanionModel: ObservableObject {
    @Published var origin = "https://your-app.example"
    @Published var status = "Enter your app's address."
    private let refresh = CoalescedRunner()

    func connect() async {
        await refresh.run { [self] in
            guard let base = URL(string: origin), base.scheme == "https",
                  base.host != nil, base.user == nil, base.password == nil,
                  base.query == nil, base.fragment == nil,
                  base.path.isEmpty || base.path == "/" else {
                status = "Enter an HTTPS address without a path."
                return
            }
            status = "Connecting…"
            do {
                let (_, response) = try await URLSession.shared.data(from: base.appendingPathComponent("api/version"))
                guard let http = response as? HTTPURLResponse, http.statusCode == 200 else {
                    status = "Could not connect. Check the address and try again."
                    return
                }
                status = "Connected."
            } catch {
                status = "Could not connect. Check your connection and try again."
            }
        }
    }
}

struct CompanionView: View {
    @StateObject private var model = CompanionModel()
    var body: some View {
        Form {
            TextField("App address", text: $model.origin)
                .autocorrectionDisabled()
            Button("Connect") { Task { await model.connect() } }
            Text(model.status)
                .accessibilityLabel(model.status)
        }
        .padding()
        .frame(minWidth: 300, minHeight: 180)
    }
}