List<Pets> pets = new()
{
    new Pets() { Uuid= Guid.Parse("6a1b4a72-5669-41fe-8d5b-106dc86f58bd"), Animals = "Кот", Breed = "Бигль"},
    new Pets() { Uuid= Guid.Parse("464bbdb8-39c0-4644-b9c0-3df1c484ea7e"), Animals = "Собака", Breed = "Мейн-Кун"},
    new Pets() { Uuid= Guid.Parse("f8692bea-b7e6-4164-b564-a921f16c35c9"), Animals = "Хомяк", Breed = "Лемминг"},
};

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 pets.Select(r => new PetEntityDto()
    {
        Uuid = r.Uuid,
        Animals = r.Animals,
        Breed = r.Breed,
    });
})
.WithName("GetPets")
.WithOpenApi();

app.MapGet("/{uuid}", (Guid uuid) =>
{
    var pet = pets.FirstOrDefault(r => r.Uuid == uuid);
    if (pet == null)
        return Results.NotFound();
    return Results.Json(new PetEntityDto()
    {
        Uuid = pet.Uuid,
        Animals = pet.Animals,
        Breed = pet.Breed,
    });
})
.WithName("GetPetByGUID")
.WithOpenApi();

app.MapPost("/{animals}/{breed}", (string Animals, string Breed) =>
{
    Guid NewGuid = Guid.NewGuid();
    pets.Add(new Pets() { Uuid = NewGuid, Animals = (string)Animals, Breed = (string)Breed});
   
    var pet = pets.FirstOrDefault(r => r.Uuid == NewGuid);
    if (pet == null)
        return Results.NotFound();
    return Results.Json(new PetEntityDto()
    {
        Uuid = pet.Uuid,
        Animals = pet.Animals,
        Breed = pet.Breed,
    });
})
.WithName("PostPet")
.WithOpenApi();

app.MapPatch("/{uuid}/{animals}/{breed}", (Guid uuid, string ?animals, string ?breed) =>
{
    var pet = pets.FirstOrDefault(r => r.Uuid == uuid);
    if (pet == null)
        return Results.NotFound();
    if (animals != null) pet.Animals = animals;
    if (breed != null) pet.Breed = breed;

    return Results.Json(new PetEntityDto()
    {
        Uuid = pet.Uuid,
        Animals = pet.Animals,
        Breed = pet.Breed,
    });
})
.WithName("UpdatePet")
.WithOpenApi();

app.MapDelete("/{uuid}", (Guid uuid) =>
{
    var pet = pets.FirstOrDefault(r => r.Uuid == uuid);    
    if (pet == null)
        return Results.NotFound();
    pets.Remove(pet);
    return Results.Json(new PetEntityDto()
    {
        Uuid = pet.Uuid,
        Animals = pet.Animals,
        Breed = pet.Breed,
    });
})
.WithName("DeletePetByGUID")
.WithOpenApi();

app.Run();

public class Pets
{
    public Guid Uuid { get; set; }
    public string Animals { get; set; } = string.Empty;
    public string Breed { get; set; } = string.Empty;
}

public class PetEntityDto : Pets { }