Program.cs

using Microsoft.EntityFrameworkCore;
using Microsoft.OpenApi;
using ProductApi.Data;
using ProductApi.Models;
using Swashbuckle.AspNetCore.SwaggerGen;

var builder = WebApplication.CreateBuilder(args);

// Add services
builder.Services.AddDbContext<AppDbContext>(options =>
    options.UseSqlServer(builder.Configuration.GetConnectionString("DefaultConnection")));

builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen(c =>
{
    c.SwaggerDoc("v1", new OpenApiInfo { Title = "Product API", Version = "v1" });
});

builder.Services.AddCors(options =>
{
    options.AddPolicy("AllowAngularApp", policy =>
    {
        policy.WithOrigins("http://localhost:4200")
              .AllowAnyHeader()
              .AllowAnyMethod();
    });
});

var app = builder.Build();

// Enable Swagger
if (app.Environment.IsDevelopment())
{
    app.UseSwagger();
    app.UseSwaggerUI(c => c.SwaggerEndpoint("/swagger/v1/swagger.json", "Product API v1"));
}

// Minimal CRUD endpoints will go here
app.UseHttpsRedirection();

app.MapGet("/api/products", async (AppDbContext db) =>
    await db.Products.ToListAsync());

app.MapGet("/api/products/{id:int}", async (int id, AppDbContext db) =>
    await db.Products.FindAsync(id) is Product product
        ? Results.Ok(product)
        : Results.NotFound());

app.MapPost("/api/products", async (Product product, AppDbContext db) =>
{
    db.Products.Add(product);
    await db.SaveChangesAsync();
    return Results.Created($"/api/products/{product.Id}", product);
});

app.MapPut("/api/   /{id:int}", async (int id, Product updatedProduct, AppDbContext db) =>
{
    var product = await db.Products.FindAsync(id);
    if (product is null) return Results.NotFound();

    product.Name = updatedProduct.Name;
    product.Description = updatedProduct.Description;
    product.Price = updatedProduct.Price;

    await db.SaveChangesAsync();
    return Results.NoContent();
});

app.MapDelete("/api/products/{id:int}", async (int id, AppDbContext db) =>
{
    var product = await db.Products.FindAsync(id);
    if (product is null) return Results.NotFound();

    db.Products.Remove(product);
    await db.SaveChangesAsync();
    return Results.NoContent();
});

app.UseCors("AllowAngularApp");

app.Run();





//var builder = WebApplication.CreateBuilder(args);

//// Add services to the container.
//// Learn more about configuring OpenAPI at https://aka.ms/aspnet/openapi
//builder.Services.AddOpenApi();

//var app = builder.Build();

//// Configure the HTTP request pipeline.
//if (app.Environment.IsDevelopment())
//{
//    app.MapOpenApi();
//}

//app.UseHttpsRedirection();

//var summaries = new[]
//{
//    "Freezing", "Bracing", "Chilly", "Cool", "Mild", "Warm", "Balmy", "Hot", "Sweltering", "Scorching"
//};

//app.MapGet("/weatherforecast", () =>
//{
//    var forecast =  Enumerable.Range(1, 5).Select(index =>
//        new WeatherForecast
//        (
//            DateOnly.FromDateTime(DateTime.Now.AddDays(index)),
//            Random.Shared.Next(-20, 55),
//            summaries[Random.Shared.Next(summaries.Length)]
//        ))
//        .ToArray();
//    return forecast;
//})
//.WithName("GetWeatherForecast");

//app.Run();

//record WeatherForecast(DateOnly Date, int TemperatureC, string? Summary)
//{
//    public int TemperatureF => 32 + (int)(TemperatureC / 0.5556);
//}