added and updated models

specs/models/finance/marketplace.v

@@ -0,0 +1,61 @@
+module marketplace
+
+import base
+import freeflowuniverse.herolib.data.ourtime
+import asset // For AssetType
+// ListingStatus, ListingType enums and Bid struct are used from the same module
+
+// Listing represents a marketplace listing for an asset
+pub struct Listing {
+	base.Base // Provides id, created_at, updated_at
+pub mut:
+	title         string
+	description   string
+	asset_id      string
+	asset_type    asset.AssetType // Enum from the asset model
+	seller_id     string
+	price         f64    // Initial price for fixed price, or starting price for auction
+	currency      string
+	listing_type  ListingType
+	status        ListingStatus
+	expires_at    ourtime.OurTime // Optional
+	sold_at       ourtime.OurTime // Optional
+	buyer_id      string          // Optional
+	sale_price    f64             // Optional
+	bids          []Bid           // List of bids for auction type listings
+	tags          []string
+	image_url     string          // Optional
+}
+
+// ListingStatus defines the status of a marketplace listing
+pub enum ListingStatus {
+	active
+	sold
+	cancelled
+	expired
+}
+
+// ListingType defines the type of marketplace listing
+pub enum ListingType {
+	fixed_price
+	auction
+	exchange
+}
+
+// Bid represents a bid on an auction listing
+pub struct Bid {
+pub mut:
+	listing_id  string // ID of the listing this bid belongs to
+	bidder_id   u32
+	amount      f64
+	currency    string
+	status      BidStatus
+}
+
+// BidStatus defines the status of a bid on an auction listing
+pub enum BidStatus {
+	active
+	accepted
+	rejected
+	cancelled
+}