using Xunit;
using ytLive.Models;

namespace ytLive.Tests;

/// <summary>Creator ruling (2026-10-30): the top bar's primary button is context-sensitive and the
/// separate TEST button is gone.
///
/// <para>EDIT off + ON-AIR → the livestream message. EDIT on + ON-AIR → the test-livestream
/// message. REC always records, because there is no test recording. The matrix is pure, so it is
/// cheaper to pin it here than to drive a window.</para></summary>
public class SessionStartDecisionTests
{
    [Fact]
    public void Edit_decides_whether_the_on_air_start_is_live_or_a_test()
    {
        // ON-AIR armed: EDIT decides.
        Assert.Equal(SessionStartKind.Live, SessionStartDecision.For(recordArmed: false, onAirArmed: true, editing: false));
        Assert.Equal("Go Live", SessionStartDecision.LabelFor(SessionStartKind.Live));

        Assert.Equal(SessionStartKind.Test, SessionStartDecision.For(recordArmed: false, onAirArmed: true, editing: true));
        Assert.Equal("Test Stream", SessionStartDecision.LabelFor(SessionStartKind.Test));

        // REC armed: always a recording, whatever EDIT says (no test recording exists).
        Assert.Equal(SessionStartKind.Record, SessionStartDecision.For(true, false, false));
        Assert.Equal(SessionStartKind.Record, SessionStartDecision.For(true, false, true));
        Assert.Equal("Start Recording", SessionStartDecision.LabelFor(SessionStartKind.Record));

        // Signed out: an ON-AIR press (live OR test) routes to the sign-in flow, never a dead
        // button. Recording never needs an account.
        Assert.Equal(SessionStartDecision.Route.SignIn, SessionStartDecision.RouteFor(SessionStartKind.Live, connected: false));
        Assert.Equal(SessionStartDecision.Route.SignIn, SessionStartDecision.RouteFor(SessionStartKind.Test, connected: false));
        Assert.Equal(SessionStartDecision.Route.Live, SessionStartDecision.RouteFor(SessionStartKind.Live, connected: true));
        Assert.Equal(SessionStartDecision.Route.Test, SessionStartDecision.RouteFor(SessionStartKind.Test, connected: true));
        Assert.Equal(SessionStartDecision.Route.Record, SessionStartDecision.RouteFor(SessionStartKind.Record, connected: false));

        // Unarmed start records locally (the no-dead-ends rule).
        Assert.Equal(SessionStartKind.Record, SessionStartDecision.For(false, false, false));
    }
}