EbayListingTool/EbayListingTool/Models/ListingDraft.cs

using System.ComponentModel;
using System.Runtime.CompilerServices;

namespace EbayListingTool.Models;

public enum ItemCondition
{
    New,
    OpenBox,
    Refurbished,
    Used,
    ForPartsOrNotWorking
}

public enum ListingFormat
{
    FixedPrice,
    Auction
}

public enum PostageOption
{
    RoyalMailFirstClass,
    RoyalMailSecondClass,
    RoyalMailTracked24,
    RoyalMailTracked48,
    CollectionOnly,
    FreePostage
}

public class ListingDraft : INotifyPropertyChanged
{
    private string _title = "";
    private string _description = "";
    private decimal _price;
    private int _quantity = 1;
    private ItemCondition _condition = ItemCondition.Used;
    private ListingFormat _format = ListingFormat.FixedPrice;
    private PostageOption _postage = PostageOption.RoyalMailSecondClass;
    private Dictionary<string, string> _aspects = new();
    private decimal _shippingCost;
    private string _categoryId = "";
    private string _categoryName = "";
    private string _postcode = "";
    private List<string> _photoPaths = new();
    private string? _ebayItemId;
    private string? _ebayListingUrl;
    private string _sku = Guid.NewGuid().ToString("N")[..12].ToUpper();
    private bool _isPosting;
    private string _statusMessage = "";

    public string Title
    {
        get => _title;
        set { _title = value; OnPropertyChanged(); OnPropertyChanged(nameof(TitleCharCount)); }
    }

    public string TitleCharCount => $"{_title.Length}/80";
    public bool TitleTooLong => _title.Length > 80;

    public string Description
    {
        get => _description;
        set { _description = value; OnPropertyChanged(); }
    }

    public decimal Price
    {
        get => _price;
        set { _price = value; OnPropertyChanged(); }
    }

    public int Quantity
    {
        get => _quantity;
        set { _quantity = value; OnPropertyChanged(); }
    }

    public ItemCondition Condition
    {
        get => _condition;
        set { _condition = value; OnPropertyChanged(); }
    }

    public ListingFormat Format
    {
        get => _format;
        set { _format = value; OnPropertyChanged(); }
    }

    public PostageOption Postage
    {
        get => _postage;
        set { _postage = value; OnPropertyChanged(); }
    }

    public Dictionary<string, string> Aspects
    {
        get => _aspects;
        set { _aspects = value; OnPropertyChanged(); }
    }

    public decimal ShippingCost
    {
        get => _shippingCost;
        set { _shippingCost = value; OnPropertyChanged(); }
    }

    public string CategoryId
    {
        get => _categoryId;
        set { _categoryId = value; OnPropertyChanged(); }
    }

    public string CategoryName
    {
        get => _categoryName;
        set { _categoryName = value; OnPropertyChanged(); }
    }

    public string Postcode
    {
        get => _postcode;
        set { _postcode = value; OnPropertyChanged(); }
    }

    public List<string> PhotoPaths
    {
        get => _photoPaths;
        set { _photoPaths = value; OnPropertyChanged(); }
    }

    public string? EbayItemId
    {
        get => _ebayItemId;
        set { _ebayItemId = value; OnPropertyChanged(); OnPropertyChanged(nameof(IsPosted)); }
    }

    public string? EbayListingUrl
    {
        get => _ebayListingUrl;
        set { _ebayListingUrl = value; OnPropertyChanged(); }
    }

    public string Sku
    {
        get => _sku;
        set { _sku = value; OnPropertyChanged(); }
    }

    public bool IsPosting
    {
        get => _isPosting;
        set { _isPosting = value; OnPropertyChanged(); }
    }

    public string StatusMessage
    {
        get => _statusMessage;
        set { _statusMessage = value; OnPropertyChanged(); }
    }

    public bool IsPosted => !string.IsNullOrEmpty(_ebayItemId);

    public string ConditionId => Condition switch
    {
        ItemCondition.New                  => "NEW",
        ItemCondition.OpenBox              => "NEW_OTHER",
        ItemCondition.Refurbished          => "SELLER_REFURBISHED",
        ItemCondition.Used                 => "USED_VERY_GOOD",
        ItemCondition.ForPartsOrNotWorking => "FOR_PARTS_OR_NOT_WORKING",
        _                                  => "USED_VERY_GOOD"
    };

    // Numeric condition IDs for Trading API (AddItem)
    public string ConditionNumericId => Condition switch
    {
        ItemCondition.New                  => "1000",
        ItemCondition.OpenBox              => "1500",
        ItemCondition.Refurbished          => "2500",
        ItemCondition.Used                 => "3000",
        ItemCondition.ForPartsOrNotWorking => "7000",
        _                                  => "3000"
    };

    public event PropertyChangedEventHandler? PropertyChanged;
    protected void OnPropertyChanged([CallerMemberName] string? name = null)
        => PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(name));
}