using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.DependencyInjection;
using SVSim.Database;
using SVSim.Database.Enums;
using SVSim.Database.Models;
using SVSim.Database.Repositories.Viewer;
using SVSim.UnitTests.Infrastructure;

namespace SVSim.UnitTests.Repositories;

/// <summary>
/// Direct tests against <see cref="ViewerRepository"/>. The owned-type lookup in
/// <see cref="ViewerRepository.GetViewerBySocialConnection"/> previously used
/// <c>_dbContext.Set&lt;SocialAccountConnection&gt;()</c> which EF couldn't translate (owned
/// types aren't queryable as a root). This test would have caught the regression.
/// </summary>
public class ViewerRepositoryTests
{
    [Test]
    public async Task GetViewerBySocialConnection_returns_viewer_when_steam_id_matches()
    {
        using var factory = new SVSimTestFactory();
        const ulong steamId = 76_561_198_111_222_333UL;

        long expectedViewerId = await factory.SeedViewerAsync(steamId: steamId, displayName: "Owner");

        using var scope = factory.Services.CreateScope();
        var repo = scope.ServiceProvider.GetRequiredService<IViewerRepository>();

        Viewer? found = await repo.GetViewerBySocialConnection(SocialAccountType.Steam, steamId);

        Assert.That(found, Is.Not.Null, "Expected to find the seeded viewer by Steam social connection.");
        Assert.That(found!.Id, Is.EqualTo(expectedViewerId));
        Assert.That(found.DisplayName, Is.EqualTo("Owner"));
    }

    [Test]
    public async Task GetViewerBySocialConnection_returns_null_when_steam_id_does_not_match()
    {
        using var factory = new SVSimTestFactory();
        await factory.SeedViewerAsync(steamId: 76_561_198_111_222_333UL);

        using var scope = factory.Services.CreateScope();
        var repo = scope.ServiceProvider.GetRequiredService<IViewerRepository>();

        Viewer? found = await repo.GetViewerBySocialConnection(SocialAccountType.Steam, 76_561_198_999_999_999UL);

        Assert.That(found, Is.Null);
    }

    [Test]
    public async Task RegisterViewer_grants_default_leader_skins_to_classes()
    {
        // Guards the just-fixed nav-graph NRE — RegisterViewer iterates ClassEntry.LeaderSkins
        // and needs the .Include to populate them. If the include is lost, this throws inside
        // SeedViewerAsync rather than reaching the assertion.
        using var factory = new SVSimTestFactory();
        long viewerId = await factory.SeedViewerAsync();

        using var scope = factory.Services.CreateScope();
        var db = scope.ServiceProvider.GetRequiredService<SVSimDbContext>();

        Viewer viewer = await db.Viewers
            .Include(v => v.Classes).ThenInclude(c => c.LeaderSkin)
            .Include(v => v.LeaderSkins)
            .FirstAsync(v => v.Id == viewerId);

        Assert.That(viewer.Classes, Is.Not.Empty, "RegisterViewer should populate Classes from seed data.");
        Assert.That(viewer.Classes.Select(c => c.LeaderSkin).All(s => s is not null), Is.True,
            "Every class should have a LeaderSkin assigned (placeholder or real).");
        Assert.That(viewer.LeaderSkins, Is.Not.Empty,
            "Viewer should own at least one leader skin from class defaults.");
    }
}