using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Design;

namespace BigRegister.Api.Data;

/// <summary>
/// Factory for short-lived <see cref="AppDbContext"/> instances. The three stores
/// (ApplicationStore/DocumentStore/BriefStore) are static classes — that shape
/// predates this persistence layer, which keeps that shape — so they can't take a constructor-injected
/// DbContext; each store method opens one here, uses it, and disposes it under its
/// own lock instead.
/// </summary>
public static class Db
{
  public static string ConnectionString { get; set; } = "Data Source=bigregister.db";

  public static AppDbContext Create() =>
      new(new DbContextOptionsBuilder<AppDbContext>().UseSqlite(ConnectionString).Options);
}

/// <summary>Lets `dotnet ef migrations add` construct a context at design time
/// without booting the full app (no DI registration exists for AppDbContext —
/// see Db.Create above for why). Auto-discovered by EF Core's tooling.</summary>
public sealed class AppDbContextFactory : IDesignTimeDbContextFactory<AppDbContext>
{
  public AppDbContext CreateDbContext(string[] args) => Db.Create();
}