Expose a NextDexie that translates an entire db instance to a NextDexie db instance (currently readonly and limited)

Author: dfahlander

src/next/NextDexie.mts

@@ -0,0 +1,36 @@
+import { Dexie, PromiseExtended } from '../../dist/dexie';
+import { DexieCollection } from './DexieCollection.mjs';
+
+type TableProps<D extends Dexie> = {
+  [P in keyof D]: D[P] extends {get(key: any): PromiseExtended<any>, toArray: () => PromiseExtended<any[]>} ? P : never;
+}[keyof D];
+
+
+export type NextDexie<D extends Dexie> = {
+  [P in TableProps<D>]: D[P] extends {
+    get(key: infer K): PromiseExtended<any>;
+    toArray: () => PromiseExtended<Array<infer T>>;
+  }
+    ? DexieCollection<T, K>
+    : D[P];
+} & {
+  readonly name: string;
+  readonly tables: DexieCollection<any, any>[];
+}
+
+const wm = new WeakMap<Dexie, NextDexie<Dexie>>();
+
+export function NextDexie<D extends Dexie>(db: D): NextDexie<D> {
+  let nextDexie = wm.get(db);
+  if (nextDexie) return nextDexie as NextDexie<D>;
+  nextDexie = {
+    name: db.name,
+    tables: [] as DexieCollection<any, any>[],
+  } as NextDexie<D>;
+  for (const table of db.tables) {
+    nextDexie.tables.push(new DexieCollection(table));
+  }
+  wm.set(db, nextDexie);
+  return nextDexie as NextDexie<D>;
+}
+

src/next/index.mts

@@ -9,3 +9,5 @@ export { createMangoFilter } from './createMangoFilter.mjs';
 export { executeQuery, executeCount } from './executeMangoQuery.mjs';
 export type { MangoExpression } from './MangoExpression.mjs';
 export { toMapKey } from './toMapKey.mjs';
+export { NextDexie } from './NextDexie.mjs'
+