reviewing and updating deck generation

packages/db/src/db/schema.ts

@@ -7,7 +7,6 @@ import {
   unique,
   check,
   boolean,
-  integer,
   primaryKey,
   index,
 } from "drizzle-orm/pg-core";
@@ -133,19 +132,19 @@ export const decks = pgTable(
     id: uuid().primaryKey().defaultRandom(),
     name: text().notNull(),
     description: text(),
-    language_pair_id: uuid()
+    validated_for_languages: varchar({ length: 10 })
+      .array()
       .notNull()
-      .references(() => language_pairs.id, { onDelete: "cascade" }),
-    created_by: uuid()
-      .notNull()
-      .references(() => users.id, { onDelete: "cascade" }),
+      .default([]),
     is_public: boolean().default(false).notNull(),
     created_at: timestamp({ withTimezone: true }).defaultNow().notNull(),
   },
   (table) => [
-    unique("unique_deck_name").on(table.name, table.created_by),
-    index("idx_decks_created_by").on(table.created_by),
-    index("idx_decks_language_pair").on(table.language_pair_id),
+    check(
+      "validated_languages_check",
+      sql`validated_for_languages <@ ARRAY[${sql.raw(SUPPORTED_LANGUAGE_CODES.map((l) => `'${l}'`).join(", "))}]::varchar[]`,
+    ),
+    unique("unique_deck_name").on(table.name),
   ],
 );
 
@@ -158,7 +157,6 @@ export const deck_terms = pgTable(
     term_id: uuid()
       .notNull()
       .references(() => terms.id, { onDelete: "cascade" }),
-    position: integer().notNull(),
     added_at: timestamp({ withTimezone: true }).defaultNow().notNull(),
   },
   (table) => [