neon-sprawl/server/NeonSprawl.Server.Tests/Game/Combat/CombatTargetFixtureApiTests.cs

using System.Net;
using System.Net.Http.Json;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.DependencyInjection;
using NeonSprawl.Server.Game.AbilityInput;
using NeonSprawl.Server.Game.Combat;
using NeonSprawl.Server.Game.Encounters;
using NeonSprawl.Server.Game.Npc;
using NeonSprawl.Server.Tests;
using Xunit;

namespace NeonSprawl.Server.Tests.Game.Combat;

public sealed class CombatTargetFixtureApiTests
{
    private const string FixturePath = "/game/__dev/combat-targets-fixture";

    [Fact]
    public async Task PostCombatTargetFixture_ShouldResetPrototypeTargets_WhenEnabled()
    {
        // Arrange
        await using var factory = new InMemoryWebApplicationFactory();
        var client = factory.CreateClient();
        var store = factory.Services.GetRequiredService<ICombatEntityHealthStore>();
        var threatStore = factory.Services.GetRequiredService<IThreatStateStore>();
        var runtimeStore = factory.Services.GetRequiredService<INpcRuntimeStateStore>();
        var playerHealthStore = factory.Services.GetRequiredService<IPlayerCombatHealthStore>();
        var progressStore = factory.Services.GetRequiredService<IEncounterProgressStore>();
        var completionStore = factory.Services.GetRequiredService<IEncounterCompletionStore>();
        var eventStore = factory.Services.GetRequiredService<IEncounterCompleteEventStore>();
        _ = progressStore.TryActivate("dev-local-1", "prototype_combat_pocket");
        _ = progressStore.TryAddDefeatedTarget("dev-local-1", "prototype_combat_pocket", "prototype_npc_melee");
        _ = completionStore.TryMarkCompleted("dev-local-1", "prototype_combat_pocket", DateTimeOffset.UtcNow);
        _ = eventStore.TryRecord(
            new EncounterCompleteEvent(
                "dev-local-1",
                "prototype_combat_pocket",
                "prototype_combat_pocket_clear",
                [new EncounterGrantApplied("scrap_metal_bulk", 10)],
                DateTimeOffset.UtcNow,
                "dev-local-1:prototype_combat_pocket"));
        _ = store.TryApplyDamage(PrototypeNpcRegistry.PrototypeNpcMeleeId, 100, out _);
        _ = playerHealthStore.TryApplyDamage("dev-local-1", 40, out _);
        _ = threatStore.TrySetHolder(PrototypeNpcRegistry.PrototypeNpcMeleeId, "dev-local-1");
        var windupStarted = new DateTimeOffset(2026, 5, 27, 12, 0, 0, TimeSpan.Zero);
        _ = runtimeStore.TryWrite(
            PrototypeNpcRegistry.PrototypeNpcMeleeId,
            new NpcRuntimeStateSnapshot(
                PrototypeNpcRegistry.PrototypeNpcMeleeId,
                NpcBehaviorState.TelegraphWindup,
                windupStarted,
                new ActiveTelegraphSnapshot("prototype_npc_melee:test", windupStarted)));

        // Act
        var response = await client.PostAsJsonAsync(
            FixturePath,
            new CombatTargetFixtureRequest
            {
                SchemaVersion = CombatTargetFixtureRequest.CurrentSchemaVersion,
            });

        // Assert
        Assert.Equal(HttpStatusCode.OK, response.StatusCode);
        var body = await response.Content.ReadFromJsonAsync<CombatTargetFixtureResponse>();
        Assert.NotNull(body);
        Assert.True(body!.Applied);
        store.TryGet(PrototypeNpcRegistry.PrototypeNpcMeleeId, out var melee);
        Assert.Equal(100, melee.CurrentHp);
        Assert.False(melee.Defeated);
        threatStore.TryGet(PrototypeNpcRegistry.PrototypeNpcMeleeId, out var threat);
        Assert.Null(threat.AggroHolderPlayerId);
        runtimeStore.TryGet(PrototypeNpcRegistry.PrototypeNpcMeleeId, out var runtime);
        Assert.Equal(NpcBehaviorState.Idle, runtime.BehaviorState);
        Assert.Null(runtime.ActiveTelegraph);
        playerHealthStore.TryGet("dev-local-1", out var playerHealth);
        Assert.Equal(PlayerCombatHealthDefaults.MaxHp, playerHealth.CurrentHp);
        Assert.False(playerHealth.Defeated);
        Assert.False(progressStore.TryGetProgress("dev-local-1", "prototype_combat_pocket", out _));
        Assert.False(completionStore.IsCompleted("dev-local-1", "prototype_combat_pocket"));
        Assert.False(eventStore.TryGet("dev-local-1", "prototype_combat_pocket", out _));
    }

    [Fact]
    public async Task PostCombatTargetFixture_ShouldClearAbilityCooldowns_WhenEnabled()
    {
        // Arrange
        await using var factory = new InMemoryWebApplicationFactory();
        var client = factory.CreateClient();
        var cooldownStore = factory.Services.GetRequiredService<IPlayerAbilityCooldownStore>();
        var now = factory.FakeClock!.GetUtcNow();
        cooldownStore.StartCooldown("dev-local-1", slotIndex: 0, now, TimeSpan.FromSeconds(30));
        Assert.True(cooldownStore.IsOnCooldown("dev-local-1", slotIndex: 0, now));

        // Act
        var response = await client.PostAsJsonAsync(
            FixturePath,
            new CombatTargetFixtureRequest
            {
                SchemaVersion = CombatTargetFixtureRequest.CurrentSchemaVersion,
            });

        // Assert
        Assert.Equal(HttpStatusCode.OK, response.StatusCode);
        Assert.False(cooldownStore.IsOnCooldown("dev-local-1", slotIndex: 0, now));
    }

    [Fact]
    public async Task PostCombatTargetFixture_ShouldReturnNotFound_WhenRouteNotRegistered()
    {
        // Arrange
        await using var factory = new InMemoryWebApplicationFactory();
        var client = factory.WithWebHostBuilder(b =>
        {
            b.UseEnvironment("Production");
            b.UseSetting("Game:EnableCombatTargetFixtureApi", "false");
        }).CreateClient();

        // Act
        var response = await client.PostAsJsonAsync(
            FixturePath,
            new CombatTargetFixtureRequest
            {
                SchemaVersion = CombatTargetFixtureRequest.CurrentSchemaVersion,
            });

        // Assert
        Assert.Equal(HttpStatusCode.NotFound, response.StatusCode);
    }
}