using Microsoft.EntityFrameworkCore;
using backend.Data;
using backend.Models;

var builder = WebApplication.CreateBuilder(args);

// Add services to the container
builder.Services.AddControllers();

// Configure Entity Framework with SQL Server
builder.Services.AddDbContext<AppDbContext>(options =>
    options.UseSqlServer(builder.Configuration.GetConnectionString("DefaultConnection")));

// Bind AppConfig from appsettings.json
builder.Services.Configure<AppConfig>(
    builder.Configuration.GetSection("AppConfig"));

// Configure CORS
builder.Services.AddCors(options =>
{
    options.AddPolicy("AllowFrontend", policy =>
    {
        policy.WithOrigins("http://localhost:5173", "http://localhost:3000")
              .AllowAnyHeader()
              .AllowAnyMethod();
    });
});

// Configure serving the built SPA static files (used in Production)
builder.Services.AddSpaStaticFiles(configuration =>
{
    configuration.RootPath = "ClientApp/dist";
});

var app = builder.Build();

app.UseCors("AllowFrontend");
app.MapControllers();

// Auto-migrate database on startup
using (var scope = app.Services.CreateScope())
{
    var db = scope.ServiceProvider.GetRequiredService<AppDbContext>();
    db.Database.Migrate();
}

// Configure SPA serving
if (!app.Environment.IsDevelopment())
{
    // In Production/Staging, serve the pre-built frontend from ClientApp/dist
    app.UseSpaStaticFiles();
    app.UseSpa(spa =>
    {
        spa.Options.SourcePath = "ClientApp";
    });
}
// In Development:
// - The backend serves only the API at http://localhost:5000
// - The frontend is served by Vite dev server at http://localhost:5173
// - Vite proxies /api requests to the backend
// - Run: cd backend\ClientApp && npm run dev  (for hot-reload frontend)
// - Or open http://localhost:5000 after building the frontend

app.Run();