distributed-computing/tasks/mikhailov-ys/Lab_3/worker-1/Program.cs

List<Countries > countries  = new()
{
    new Countries () { Uuid= Guid.Parse("6a1b4a72-5669-41fe-8d5b-106dc86f58bd"), Name = "Russia", Area = "1222" },
    new Countries () { Uuid= Guid.Parse("464bbdb8-39c0-4644-b9c0-3df1c484ea7e"), Name = "USA", Area = "0" },
    new Countries () { Uuid= Guid.Parse("f8692bea-b7e6-4164-b564-a921f16c35c9"), Name = "Germany", Area = "1" },
    
};

var builder = WebApplication.CreateBuilder(args);

builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();

var app = builder.Build();

if (app.Environment.IsDevelopment())
{
    app.UseSwagger();
    app.UseSwaggerUI();
}

app.UseHttpsRedirection();

app.MapGet("/", () =>
{
    return countries.Select(r => new CountrieEntityDto()
    {
        Uuid = r.Uuid,
        Name = r.Name,
        Area = r.Area,
        
    });
})
.WithName("GetCountries")
.WithOpenApi();

app.MapGet("/{uuid}", (Guid uuid) =>
{
    var countrie = countries.FirstOrDefault(r => r.Uuid == uuid);
    if (countrie == null)
        return Results.NotFound();
    return Results.Json(new CountrieEntityDto()
    {
        Uuid = countrie.Uuid,
        Name = countrie.Name,
        Area = countrie.Area,
        
    });
})
.WithName("GetCountrieByGUID")
.WithOpenApi();

app.MapPost("/{name}/{area}", (string name, string area) =>
{
    Guid NewGuid = Guid.NewGuid();
    countries.Add(new Countries() { Uuid = NewGuid, Name = (string)name, Area = (string)area});
   
    var countrie = countries.FirstOrDefault(r => r.Uuid == NewGuid);
    if (countrie == null)
        return Results.NotFound();
    return Results.Json(new CountrieEntityDto()
    {
        Uuid = countrie.Uuid,
        Name = countrie.Name,
        Area = countrie.Area,
        
    });
})
.WithName("PostCountrie")
.WithOpenApi();

app.MapPatch("/{uuid}/{name}/{area}", (Guid uuid, string ?name, string ?area) =>
{
    var countrie = countries.FirstOrDefault(r => r.Uuid == uuid);
    if (countrie == null)
        return Results.NotFound();
    if (name != null) countrie.Name = name;
    if (area != ",") countrie.Area = area;
   

    return Results.Json(new CountrieEntityDto()
    {
        Uuid = countrie.Uuid,
        Name = countrie.Name,
        Area = countrie.Area,
        
    });
})
.WithName("UpdateCountrie")
.WithOpenApi();

app.MapDelete("/{uuid}", (Guid uuid) =>
{
    var countrie = countries.FirstOrDefault(r => r.Uuid == uuid);    
    if (countrie == null)
        return Results.NotFound();
    countries.Remove(countrie);
    return Results.Json(new CountrieEntityDto()
    {
        Uuid = countrie.Uuid,
        Name = countrie.Name,
        Area = countrie.Area,
        
    });
})
.WithName("DeleteCountrieByGUID")
.WithOpenApi();

app.Run();

public class Countries
{
    public Guid Uuid { get; set; }
    public string Name { get; set; } = string.Empty;
    public string Area  { get; set; } = string.Empty;
}

public class CountrieEntityDto : Countries { }