horsegen: generate scenarios since sparks use them

horsegen/load.go

@@ -29,6 +29,9 @@ var raceSQL string
 //go:embed saddle.sql
 var saddleSQL string
 
+//go:embed scenario.sql
+var scenarioSQL string
+
 type (
 	Character  struct{}
 	SkillGroup struct{}
@@ -407,3 +410,40 @@ func Saddles(ctx context.Context, db *sqlitex.Pool) ([]Saddle, error) {
 	}
 	return r, nil
 }
+
+type Scenario struct {
+	ID    int
+	Name  string
+	Title string
+}
+
+func Scenarios(ctx context.Context, db *sqlitex.Pool) ([]Scenario, error) {
+	conn, err := db.Take(ctx)
+	defer db.Put(conn)
+	if err != nil {
+		return nil, fmt.Errorf("couldn't get connection for scenario: %w", err)
+	}
+	stmt, _, err := conn.PrepareTransient(scenarioSQL)
+	if err != nil {
+		return nil, fmt.Errorf("couldn't prepare statement for scenario: %w", err)
+	}
+	defer stmt.Finalize()
+
+	var r []Scenario
+	for {
+		ok, err := stmt.Step()
+		if err != nil {
+			return nil, fmt.Errorf("error stepping scenarios: %w", err)
+		}
+		if !ok {
+			break
+		}
+		s := Scenario{
+			ID:    stmt.ColumnInt(0),
+			Name:  stmt.ColumnText(1),
+			Title: stmt.ColumnText(2),
+		}
+		r = append(r, s)
+	}
+	return r, nil
+}