// AppState.swift — global app state, credential lifecycle

import SwiftUI

@MainActor
final class AppState: ObservableObject {
    static let shared = AppState()

    @Published var credential: SidecarCredential? = nil

    private init() {
        // Try loading persisted credential on launch
        credential = try? Keychain.shared.load(key: "piremote.credential")
    }

    func didPair(credential: SidecarCredential) {
        self.credential = credential
        try? Keychain.shared.save(credential, key: "piremote.credential")
    }

    func unpair() {
        credential = nil
        Keychain.shared.delete(key: "piremote.credential")
    }
}