horsegen: generate saddles

horse/race.kk

@@ -67,6 +67,54 @@ pub fun grade/show(this : grade) : e string
     G1 -> "G1"
     EX -> "EX"
 
+pub struct saddle-detail
+  saddle-id: saddle-id
+  name: string
+  races: list<race-id>
+  saddle-type: saddle-type
+  // For careers with unusual races, granted saddles also differ.
+  // This field holds the normal saddle's ID for such cases.
+  primary: saddle-id
+
+pub fun saddle/detail(
+  id: saddle-id,
+  ?saddle/show: (saddle-id) -> string,
+  ?saddle/races: (saddle-id) -> list<race-id>,
+  ?saddle/saddle-type: (saddle-id) -> saddle-type,
+  ?saddle/primary: (saddle-id) -> saddle-id
+): saddle-detail
+  Saddle-detail(id, id.show, id.races, id.saddle-type, id.primary)
+
+pub fun saddle-detail/show(s: saddle-detail): string
+  val Saddle-detail(Saddle-id(id), name, _, _, Saddle-id(primary)) = s
+  if id == primary then name else name ++ " (Alternate " ++ id.show ++ ")"
+
+// Types of saddles.
+pub type saddle-type
+  Honor // multiple race wins: classic triple crown, dual grand prix, &c.
+  G3-Win
+  G2-Win
+  G1-Win
+
+// Automatically generated.
+// Shows a string representation of the `saddle-type` type.
+pub fun saddle-type/show(this : saddle-type) : e string
+  match this
+    Honor -> "Honor"
+    G3-Win -> "G3"
+    G2-Win -> "G2"
+    G1-Win -> "G1"
+
+// Automatically generated.
+// Equality comparison of the `saddle-type` type.
+pub fun saddle-type/(==)(this : saddle-type, other : saddle-type) : e bool
+  match (this, other)
+    (Honor, Honor) -> True
+    (G3-Win, G3-Win) -> True
+    (G2-Win, G2-Win) -> True
+    (G1-Win, G1-Win) -> True
+    (_, _) -> False
+
 // Turn that a race occurred.
 pub struct turn
   year: turn-year