namespace SmartB2B.Optima.Tests;

// Atrapa granicy COM sprawdza przebieg rzeczywistej fasady bez instalacji Optimy.
public sealed class FakeOrderSession
{
    public FakeOrderDocument Document { get; } = new();
    public bool Saved { get; private set; }

    public FakeOrderCollection CreateObject(string name) => new(name, Document);
    public void Save() => Saved = true;
}

public sealed class FakeOrderCollection(string name, FakeOrderDocument document)
{
    public object? Item(string filter) => name switch
    {
        "CDN.DefinicjeDokumentow" => new FakeOrderDefinition(),
        "CDN.Kontrahenci" or "CDN.Magazyny" or "CDN.Towary" => new object(),
        "CDN.Waluty" => new[] { "PLN", "EUR", "USD", "CZK" }
            .Any(currency => filter == $"WNa_Symbol='{currency}'") ? new object() : null,
        _ => throw new InvalidOperationException($"Nieoczekiwana kolekcja: {name}")
    };

    public FakeOrderDocument AddNew() => name == "CDN.DokumentyHaMag"
        ? document : throw new InvalidOperationException($"Nieoczekiwana kolekcja: {name}");
}

public sealed class FakeOrderDefinition
{
    public int Klasa => 308;
}

public sealed class FakeOrderDocument
{
    public int Rodzaj { get; set; }
    public int TypDokumentu { get; set; }
    public object? Podmiot { get; set; }
    public int Bufor { get; set; }
    public int MagazynZrodlowyID { get; set; }
    public string? NumerObcy { get; set; }
    public string? Uwagi { get; set; }
    public string WalutaSymbol { get; set; } = "PLN";
    public int Export { get; set; }
    public int TypNB => 1;
    public int ID => 42;
    public string NumerPelny => "RO/42/2026";
    public FakeOrderElements Elementy { get; }
    public decimal RazemNettoWal => Elementy.Items.Sum(line => line.Net);
    public decimal RazemBruttoWal => Elementy.Items.Sum(line => line.Net * (line.ExportWhenProductAssigned == 0 ? 1.23m : 1m));

    public FakeOrderDocument() => Elementy = new(this);
}

public sealed class FakeOrderElements(FakeOrderDocument document)
{
    public List<FakeOrderElement> Items { get; } = [];
    public FakeOrderElement AddNew()
    {
        var item = new FakeOrderElement(document);
        Items.Add(item);
        return item;
    }
}

public sealed class FakeOrderElement(FakeOrderDocument document)
{
    public int ExportWhenProductAssigned { get; private set; }
    public string? CurrencyWhenProductAssigned { get; private set; }
    public object Towar
    {
        set
        {
            ExportWhenProductAssigned = document.Export;
            CurrencyWhenProductAssigned = document.WalutaSymbol;
        }
    }
    public double Ilosc { get; set; }
    public decimal Cena0 { get; set; }
    public double Rabat { get; set; }
    public decimal Net => Convert.ToDecimal(Ilosc) * Cena0 * (1m - Convert.ToDecimal(Rabat) / 100m);
}