namespace ytLive.Services.Entitlement;

/// <summary>
/// Where "is this copy licensed for Pro output?" comes from.
///
/// <para><b>One question, two sources.</b> The lifetime SKU is a Steam DLC; the monthly is a Polar
/// lease. Both answer this interface, and everything downstream — the output profile, the greyed
/// tier list, the notices — reads only this. Nothing outside <c>Services/Entitlement</c> may know
/// which rail proved it.</para>
///
/// <para><b>Fail closed.</b> An implementation that cannot reach its source, cannot load its
/// native library, or has no product id configured returns <c>false</c>. Pro is never a default,
/// never a cached "probably", and never the result of an exception being swallowed as true.</para>
/// </summary>
public interface IEntitlement
{
    /// <summary>True when this session may emit above the free output budget.</summary>
    bool IsPro { get; }
}