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

namespace Infrastructure.Persistence;

/// <summary>
/// Design-time DbContext factory used by 'dotnet ef migrations / database update'.
/// Bypasses the full Host startup (Program.cs) so EF tools don't need to construct
/// Redis / JWT / Mail / etc. services. The connection string is taken from the
/// 'ConnectionStrings__DefaultConnection' environment variable (set by Jenkins or
/// the developer's shell) and falls back to a local SQL Express instance.
/// </summary>
public sealed class AppDbContextDesignTimeFactory : IDesignTimeDbContextFactory<AppDbContext>
{
    public AppDbContext CreateDbContext(string[] args)
    {
        var conn = Environment.GetEnvironmentVariable("ConnectionStrings__DefaultConnection")
                   ?? "Server=.\\SQLEXPRESS;Database=dpot;Trusted_Connection=True;TrustServerCertificate=True;MultipleActiveResultSets=true";

        var options = new DbContextOptionsBuilder<AppDbContext>()
            .UseSqlServer(conn)
            .ConfigureWarnings(w => w.Ignore(RelationalEventId.PendingModelChangesWarning))
            .Options;

        return new AppDbContext(options);
    }
}