more updates to MODELS

MODELS.md

@@ -354,6 +354,34 @@ struct Image {
 }
 ```
 
+# Video
+
+A Video represents a video file that a Person wants to reference from a Label, an Artist, an Album, a Track, a Playlist, or an Article.
+
+``` rust
+struct VideoId {
+    id: String,
+}
+struct Video {
+    id: VideoId,
+    name: Option<String>,
+    path: String,
+    url: String,
+    width: usize,
+    height: usize,
+    duration: chrono::Duration,
+    alt_text: String,
+    is_public: bool,
+    allow_hotlinking: bool,
+    created_by: PersonId,
+    created_at: chrono::DateTime,
+    modified_by: PersonId,
+    modified_at: chrono::DateTime,
+    deleted_by: Option<PersonId>,
+    deleted_at: Option<chrono::DateTime>,
+}
+```
+
 # Collection
 
 A Collection represents one or more Albums and/or Tracks that are offered together as a package for Purchase
@@ -366,17 +394,18 @@ struct Collection {
     id: CollectionId,
     name: String,
     description: String,
-    created_by: Person,
+    created_by: PersonId,
     created_at: chrono::DateTime,
     modified_by: Person,
     modified_at: chrono::DateTime,
     is_public: bool,
     is_available: bool,
-    deleted_by: Option<Person>,
+    deleted_by: Option<PersonId>,
     deleted_at: Option<chrono::DateTime>,
     albums: Option<Vec<Album>>,
     tracks: Option<Vec<Track>>,
-    price: Oprion<rusty_money::Money>,
+    other_products: Option<Vec<OtherProduct>>,
+    price: Option<rusty_money::Money>,
 }
 ```
 
@@ -392,7 +421,15 @@ struct OtherProduct {
     id: OtherProductId,
     name: String,
     description: String,
-
+    created_by: PersonId,
+    created_at: chrono::DateTime,
+    modified_by: PersonId,
+    modified_at: chrono::DateTime,
+    is_public: bool,
+    is_available: bool,
+    deleted_by: Option<PersonId>,
+    deleted_at: Option<chrono::DateTime>,
+    price: Option<rusty_money::Money>
 }
 ```
 
@@ -419,13 +456,15 @@ struct Sku {
     track_id: Option<TrackId>,
     collection_id: Option<CollectionId>,
     other_product_id: Option<OtherProductId>,
+    variant: Option<String>,
+    discount_percentage: Option<f64>,
+    discount_flatrate: Option<rusty_money::Money>,
 }
 struct PurchaseItem {
     id: PurchaseItemId,
     type: PurchaseItemType,
-    sku: SkuId,
+    sku: Option<SkuId>,
     quantity: usize,
-    discount_percentage: usize,
 }
 enum PurchaseState {
     InCart,