using AcDream.Core.Physics;
using Xunit;

namespace AcDream.Core.Tests.Physics;

/// <summary>
/// R3-W1 — pins <see cref="WeenieError"/>'s numeric values against the
/// definitive retail table in
/// docs/research/2026-07-02-r3-motioninterp/W0-pins.md §A10 (an exhaustive
/// sweep of every <c>return &lt;code&gt;</c> site across raw 304908-306277 +
/// 300150-300540: 19 return sites + 1 store site, all attributed). These
/// codes are local-only (never on the wire), so the renumber from the
/// pre-R3 shuffled names is a safe rename — this test is the single
/// source of truth that a future edit can't silently un-pin.
/// </summary>
public sealed class WeenieErrorCodeTableTests
{
    [Fact]
    public void None_Is0x00()
        => Assert.Equal(0x00u, (uint)WeenieError.None);

    [Fact]
    public void NoPhysicsObject_Is0x08()
        => Assert.Equal(0x08u, (uint)WeenieError.NoPhysicsObject);

    [Fact]
    public void NotGrounded_Is0x24()
        => Assert.Equal(0x24u, (uint)WeenieError.NotGrounded);

    [Fact]
    public void CrouchInCombatStance_Is0x3f()
        => Assert.Equal(0x3fu, (uint)WeenieError.CrouchInCombatStance);

    [Fact]
    public void SitInCombatStance_Is0x40()
        => Assert.Equal(0x40u, (uint)WeenieError.SitInCombatStance);

    [Fact]
    public void SleepInCombatStance_Is0x41()
        => Assert.Equal(0x41u, (uint)WeenieError.SleepInCombatStance);

    [Fact]
    public void ChatEmoteOutsideNonCombat_Is0x42()
        => Assert.Equal(0x42u, (uint)WeenieError.ChatEmoteOutsideNonCombat);

    [Fact]
    public void ActionDepthExceeded_Is0x45()
        => Assert.Equal(0x45u, (uint)WeenieError.ActionDepthExceeded);

    [Fact]
    public void GeneralMovementFailure_Is0x47()
        => Assert.Equal(0x47u, (uint)WeenieError.GeneralMovementFailure);

    [Fact]
    public void YouCantJumpFromThisPosition_Is0x48()
        => Assert.Equal(0x48u, (uint)WeenieError.YouCantJumpFromThisPosition);

    [Fact]
    public void CantJumpLoadedDown_Is0x49()
        => Assert.Equal(0x49u, (uint)WeenieError.CantJumpLoadedDown);

    /// <summary>
    /// Every code in the A10 table in one pass — guards against a
    /// future partial edit desyncing an individual test above from the
    /// enum declaration.
    /// </summary>
    [Theory]
    [InlineData(WeenieError.None, 0x00u)]
    [InlineData(WeenieError.NoPhysicsObject, 0x08u)]
    [InlineData(WeenieError.NotGrounded, 0x24u)]
    [InlineData(WeenieError.CrouchInCombatStance, 0x3fu)]
    [InlineData(WeenieError.SitInCombatStance, 0x40u)]
    [InlineData(WeenieError.SleepInCombatStance, 0x41u)]
    [InlineData(WeenieError.ChatEmoteOutsideNonCombat, 0x42u)]
    [InlineData(WeenieError.ActionDepthExceeded, 0x45u)]
    [InlineData(WeenieError.GeneralMovementFailure, 0x47u)]
    [InlineData(WeenieError.YouCantJumpFromThisPosition, 0x48u)]
    [InlineData(WeenieError.CantJumpLoadedDown, 0x49u)]
    public void A10Table_EveryCode_MatchesRetailNumericValue(WeenieError code, uint expected)
        => Assert.Equal(expected, (uint)code);
}