using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Design;
using Microsoft.Extensions.Configuration;

namespace w4c_workflows.Data;

/// <summary>
/// Design-time factory so `dotnet ef` builds the context directly from
/// appsettings.json instead of running the web host (Program.cs applies
/// migrations at startup, which must not execute during tooling runs).
/// </summary>
public class WorkflowsDbContextFactory : IDesignTimeDbContextFactory<WorkflowsDbContext>
{
    public WorkflowsDbContext CreateDbContext(string[] args)
    {
        var configuration = new ConfigurationBuilder()
            .SetBasePath(Directory.GetCurrentDirectory())
            .AddJsonFile("appsettings.json", optional: true)
            .AddEnvironmentVariables()
            .Build();

        var connectionString = configuration.GetConnectionString("DefaultConnection")
            ?? "Host=localhost;Port=5432;Database=w4c;Username=w4c;Password=w4c";

        var options = new DbContextOptionsBuilder<WorkflowsDbContext>()
            .UseNpgsql(connectionString)
            .Options;

        return new WorkflowsDbContext(options);
    }
}