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

namespace Projection.ReadModel;

/// <summary>Lets <c>dotnet ef migrations</c> build the context at design time without a running
/// database or the host's DI. The connection string is a placeholder — migrations only need the
/// provider to emit Postgres-shaped SQL.</summary>
public sealed class DesignTimeProjectionDbContextFactory : IDesignTimeDbContextFactory<ProjectionDbContext>
{
    public ProjectionDbContext CreateDbContext(string[] args)
    {
        var options = new DbContextOptionsBuilder<ProjectionDbContext>()
            .UseNpgsql("Host=localhost;Database=projection;Username=projection;Password=projection")
            .Options;
        return new ProjectionDbContext(options);
    }
}