using System.Text.Json;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Logging.Abstractions;
using Tau.Acuvim.Console.Data;

namespace Tau.Acuvim.Console.Tests;

/// <summary>
/// A subclass of AppDbContext that adds a ValueConverter for JsonDocument properties,
/// which the InMemory provider does not natively support.
/// </summary>
public class TestAppDbContext : AppDbContext
{
    public TestAppDbContext(DbContextOptions<AppDbContext> options) : base(options) { }

    protected override void OnModelCreating(ModelBuilder modelBuilder)
    {
        base.OnModelCreating(modelBuilder);

        // The InMemory provider cannot handle JsonDocument types.
        // Add a value converter that serialises JsonDocument to/from string.
        var jsonDocConverter = new ValueConverter<JsonDocument?, string?>(
            v => v == null ? null : v.RootElement.GetRawText(),
            v => v == null ? null : JsonDocument.Parse(v, new JsonDocumentOptions()));

        foreach (var entityType in modelBuilder.Model.GetEntityTypes())
        {
            foreach (var property in entityType.GetProperties())
            {
                if (property.ClrType == typeof(JsonDocument))
                {
                    property.SetValueConverter(jsonDocConverter);
                }
            }
        }
    }
}

public static class TestHelpers
{
    public static AppDbContext CreateDbContext([System.Runtime.CompilerServices.CallerMemberName] string? name = null)
    {
        var options = new DbContextOptionsBuilder<AppDbContext>()
            .UseInMemoryDatabase(databaseName: $"{name}_{Guid.NewGuid():N}")
            .Options;

        return new TestAppDbContext(options);
    }

    public static ILogger<T> CreateLogger<T>() => NullLogger<T>.Instance;
}