distributed-computing/tasks/mikhailov-ys/Lab_3/worker-2/Program.cs

using Microsoft.Extensions.DependencyInjection;
using Microsoft.AspNetCore.Builder;
using Microsoft.OpenApi.Models;

List<Сities> сities = new()
{
    new Сities() { Uuid= Guid.NewGuid(), Population = "134r23", Name = "Moscow", IdCountrie = Guid.Parse("6a1b4a72-5669-41fe-8d5b-106dc86f58bd") },
    new Сities() { Uuid= Guid.NewGuid(), Population = "223322213", Name = "Paris", IdCountrie = Guid.Parse("f8692bea-b7e6-4164-b564-a921f16c35c9") },
    new Сities() { Uuid= Guid.NewGuid(), Population = "32123", Name = "New York", IdCountrie = Guid.Parse("464bbdb8-39c0-4644-b9c0-3df1c484ea7e") },
    new Сities() { Uuid= Guid.NewGuid(), Population = "312122", Name = "Sant Peterburg", IdCountrie = Guid.Parse("464bbdb8-39c0-4644-b9c0-3df1c484ea7e") },
};

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 сities.Select(r => new CityEntityDto()
    {
        Uuid = r.Uuid,
        Population = r.Population,
        Name = r.Name,
        IdCountrie = r.IdCountrie,
    });
})
.WithName("GetСities")
.WithOpenApi();

app.MapGet("/{uuid}", (Guid uuid) =>
{
    var city = сities.FirstOrDefault(r => r.Uuid == uuid);
    if (city == null)
        return Results.NotFound();
    return Results.Json(new CityEntityDto()
    {
        Uuid = city.Uuid,
        Population = city.Population,
        Name = city.Name,
        IdCountrie = city.IdCountrie,
    });
})
.WithName("GetCityByGUID")
.WithOpenApi();

app.MapPost("/{population}/{name}/{IdCountrie}", (string? Population, string Name, Guid IdCountrie) =>
{
    Guid NewGuid = Guid.NewGuid();
    сities.Add(new Сities() { Uuid = NewGuid, Population = (string)Population, Name = (string)Name, IdCountrie = (Guid)IdCountrie });
   
    var city = сities.FirstOrDefault(r => r.Uuid == NewGuid);
    if (city == null)
        return Results.NotFound();
    return Results.Json(new CityEntityDto()
    {
        Uuid = city.Uuid,
        Population = city.Population,
        Name = city.Name,
        IdCountrie = city.IdCountrie,
    });
})
.WithName("PostCity")
.WithOpenApi();

app.MapPatch("/{uuid}/{population}/{name}/{IdCountrie}", (Guid uuid, string ?population, string name, Guid IdCountrie) =>
{
    var city = сities.FirstOrDefault(r => r.Uuid == uuid);
    if (city == null)
        return Results.NotFound();
    if (population != ",") city.Population = population;
    if (name != city.Name) city.Name = name;
    if (IdCountrie != city.IdCountrie) city.IdCountrie = IdCountrie;

    return Results.Json(new CityEntityDto()
    {
        Uuid = city.Uuid,
        Population = city.Population,
        Name = city.Name,
        IdCountrie = city.IdCountrie,
    });
})
.WithName("UpdateCity")
.WithOpenApi();

app.MapDelete("/{uuid}", (Guid uuid) =>
{
    var city = сities.FirstOrDefault(r => r.Uuid == uuid);    
    if (city == null)
        return Results.NotFound();
    сities.Remove(city);
    return Results.Json(new CityEntityDto()
    {
        Uuid = city.Uuid,
        Population = city.Population,
        Name = city.Name,
        IdCountrie = city.IdCountrie,
    });
})
.WithName("DeleteCity")
.WithOpenApi();

app.MapGet("/Сities/", async () =>
{
    var httpClient = new HttpClient();
    var secondWorkerResponse = await httpClient.GetStringAsync("http://worker-1:8080/");

    return secondWorkerResponse.ToArray();
})
.WithName("GetCountries")
.WithOpenApi();

app.Run();

public class Сities
{
    public Guid Uuid { get; set; }
    public string Population { get; set; } = string.Empty;
    public string  Name  { get; set; } = string.Empty;
    public Guid IdCountrie { get; set; }
}

public class CityEntityDto : Сities { }

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 { }