using Novelly.Api.Beats;
using Novelly.Api.Chapters;
using Novelly.Api.Characters;
using Novelly.Api.Projects;
using Novelly.Api.Scenes;
using Novelly.Api.Tags;

namespace Novelly.Api.Tests;

/// <summary>
/// Shared plumbing for the service tests: a fresh in-memory database and a matching set
/// of services per test.
/// </summary>
/// <remarks>
/// The setup lives in <c>[SetUp]</c> rather than a constructor or field initialisers
/// because NUnit builds one fixture instance for the whole class — anything created once
/// would leak state from one test into the next.
/// </remarks>
public abstract class ServiceTestFixture
{
    protected TestDatabase Db { get; private set; } = null!;
    protected TagService Tags { get; private set; } = null!;
    protected ProjectService Projects { get; private set; } = null!;
    protected CharacterService Characters { get; private set; } = null!;
    protected ChapterService Chapters { get; private set; } = null!;
    protected SceneService Scenes { get; private set; } = null!;
    protected BeatService Beats { get; private set; } = null!;

    [SetUp]
    public void SetUpFixture()
    {
        Db = new TestDatabase();
        Tags = new TagService(Db.Context);
        Projects = new ProjectService(Db.Context);
        Characters = new CharacterService(Db.Context, Tags);
        Chapters = new ChapterService(Db.Context, Tags);
        Scenes = new SceneService(Db.Context);
        Beats = new BeatService(Db.Context, Tags);

        OnSetUp();
    }

    /// <summary>Runs after the services exist, for per-class seed data.</summary>
    protected virtual void OnSetUp()
    {
    }

    [TearDown]
    public void TearDownFixture() => Db.Dispose();
}