34 lines
1.2 KiB
C#
34 lines
1.2 KiB
C#
namespace UtopiaCanteenSystem.Services;
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/// <summary>
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/// Navigates between main views (AdminLogin, Scanner, Dashboard, Settings).
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/// </summary>
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public interface INavigationService
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{
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/// <summary>Current view model to display in the main content area.</summary>
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object? CurrentViewModel { get; }
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/// <summary>Raised when CurrentViewModel changes.</summary>
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event EventHandler? CurrentViewModelChanged;
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void NavigateToAdminLogin();
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void NavigateToScanner();
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void NavigateToDashboard();
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void NavigateToAdminSettingsAuth();
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void NavigateToSettings();
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/// <summary>Opens Meal Schedules admin screen (Phase 2.5).</summary>
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void NavigateToMealSchedules();
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/// <summary>Starts a new dashboard session (used after scan).</summary>
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void StartDashboardSession();
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/// <summary>Returns true when the dashboard session is expired for the given timeout.</summary>
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bool IsDashboardSessionExpired(TimeSpan timeout);
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/// <summary>Navigates back from Settings based on dashboard session expiry.</summary>
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void NavigateBackFromSettings(TimeSpan timeout);
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/// <summary>Returns elapsed time since dashboard session start.</summary>
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TimeSpan GetDashboardSessionElapsed();
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}
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