List<Request> requests = new()
{
    new Request() { Uuid= Guid.Parse("7777fa5f-b786-4478-863a-99cc000eb752"), Title = "Документ (прием на работу)", DateDocument = new DateTime(2023, 8, 05), Employee = "Иванов Иван Иванович", IsAgreed = false },
    new Request() { Uuid= Guid.Parse("77a9aed1-218a-468e-92b9-99f6a6a34543"), Title = "Документ (увольнение)", DateDocument = new DateTime(2023, 8, 05), Employee = "Петров Петр Петрович", IsAgreed = true },
};

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 requests.Select(r => new RequestEntityDto()
    {
        Uuid = r.Uuid,
        Title = r.Title,
        DateDocument = r.DateDocument,
        Employee = r.Employee,
        IsAgreed = r.IsAgreed,
    });
})
.WithName("GetRequests")
.WithOpenApi();

app.MapGet("/{uuid}", (Guid uuid) =>
{
    var request = requests.FirstOrDefault(r => r.Uuid == uuid);
    if (request == null)
        return Results.NotFound();
    return Results.Json(new RequestEntityDto()
    {
        Uuid = request.Uuid,
        Title = request.Title,
        DateDocument = request.DateDocument,
        Employee = request.Employee,
        IsAgreed = request.IsAgreed,
    });
})
.WithName("GetRequestByGUID")
.WithOpenApi();

app.MapPost("/{title}/{Employee}/{DateDocument}/{IsAgreed}", (string title, string Employee, DateTime DateDocument, bool IsAgreed) =>
{
    Guid NewGuid = Guid.NewGuid();
    requests.Add(new Request() { Uuid = NewGuid, Title = (string)title, Employee = (string)Employee, DateDocument = (DateTime)DateDocument, IsAgreed = (bool)IsAgreed});
   
    var request = requests.FirstOrDefault(r => r.Uuid == NewGuid);
    if (request == null)
        return Results.NotFound();
    return Results.Json(new RequestEntityDto()
    {
        Uuid = request.Uuid,
        Title = request.Title,
        DateDocument = request.DateDocument,
        Employee = request.Employee,
        IsAgreed = request.IsAgreed,
    });
})
.WithName("PostRequest")
.WithOpenApi();

app.MapPatch("/{uuid}/{title}/{Employee}/{DateDocument}/{IsAgreed}", (Guid uuid, string? title, string? Employee, DateTime DateDocument, bool IsAgreed) =>
{
    var request = requests.FirstOrDefault(r => r.Uuid == uuid);
    if (request == null)
        return Results.NotFound();
    if (title != null) request.Title = title;
    if (Employee != ",") request.Employee = Employee;
    if (DateDocument != request.DateDocument) request.DateDocument = DateDocument;
    if (IsAgreed != request.IsAgreed) request.IsAgreed = IsAgreed;

    return Results.Json(new RequestEntityDto()
    {
        Uuid = request.Uuid,
        Title = request.Title,
        DateDocument = request.DateDocument,
        Employee = request.Employee,
        IsAgreed = request.IsAgreed,
    });
})
.WithName("UpdateRequest")
.WithOpenApi();

app.MapDelete("/{uuid}", (Guid uuid) =>
{
    var request = requests.FirstOrDefault(r => r.Uuid == uuid);    
    if (request == null)
        return Results.NotFound();
    requests.Remove(request);
    return Results.Json(new RequestEntityDto()
    {
        Uuid = request.Uuid,
        Title = request.Title,
        DateDocument = request.DateDocument,
        Employee = request.Employee,
        IsAgreed = request.IsAgreed,
    });
})
.WithName("DeleteRequestByGUID")
.WithOpenApi();

app.Run();

public class Request
{
    public Guid Uuid { get; set; }
    public string Title { get; set; } = string.Empty;
    public string Employee { get; set; } = string.Empty;
    public DateTime DateDocument { get; set; }
    public bool IsAgreed { get; set; }
}

public class RequestEntityDto : Request { }