namespace BlueLaminate.EFCore.Entities;

/// <summary>
/// One offer observed on skin.land via its internal
/// <c>GET /api/v2/obtained-skins?skin_id={id}&amp;page={n}</c> endpoint (scraped through
/// the Python worker, since skin.land has no public API and sits behind Cloudflare).
/// <para>
/// Kept in its own table like <see cref="CsMoneyListing"/>, but deliberately thinner:
/// skin.land exposes a full-precision float and price but <b>no paint seed / def index</b>,
/// so an offer can't be fingerprinted to a market-agnostic <see cref="SkinInstance"/> and
/// there is no cross-market roll-up or dupe detection here (revisit if pattern is ever
/// exposed). StatTrak and Souvenir live on <em>separate</em> skin.land pages (their own
/// <c>stattrak-</c>/<c>souvenir-</c> slugs); v1 sweeps the base page per skin+wear, so
/// <see cref="IsStatTrak"/>/<see cref="IsSouvenir"/> are normally false.
/// </para>
/// Soft-tracked across sweeps exactly like <see cref="CsMoneyListing"/>:
/// <see cref="FirstSeenAt"/>/<see cref="LastSeenAt"/> bound the observation window and
/// <see cref="Status"/> flips to <see cref="ListingStatus.Removed"/> when a once-seen
/// offer stops appearing (sold/delisted).
/// </summary>
public class SkinLandListing
{
    public int Id { get; set; }

    /// <summary>skin.land's offer id (obtained-skin <c>id</c>). Natural key for dedup.</summary>
    public long ListingId { get; set; }

    // Catalogue links. Like cs.money (and unlike the CSFloat global sweep) these are NOT
    // best-effort: each scrape job targets one skin+wear, so we set them directly.
    public int SkinId { get; set; }
    public Skin Skin { get; set; } = null!;
    public int? ConditionId { get; set; }
    public SkinCondition? Condition { get; set; }

    // Item identity, from the offer's skin block.
    public string MarketHashName { get; set; } = null!;
    public decimal? FloatValue { get; set; }       // item_float (string, full precision)
    public bool IsStatTrak { get; set; }
    public bool IsSouvenir { get; set; }
    public string? NameTag { get; set; }           // offer.name_tag (rare; affects value)
    public int StickerCount { get; set; }

    // Pricing. skin.land returns a single price (the amount to buy/withdraw the item).
    public decimal Price { get; set; }             // final_withdrawal_price
    public string Currency { get; set; } = "USD";  // prices are read in USD

    public string? InspectLink { get; set; }       // item_link (steam:// inspect)

    // Soft-tracking across sweeps.
    public DateTimeOffset FirstSeenAt { get; set; }
    public DateTimeOffset LastSeenAt { get; set; }
    public ListingStatus Status { get; set; }
    public DateTimeOffset? RemovedAt { get; set; }
}