feat: add application productivity foundations

2026-08-23 11:13:03 +05:30
parent 46195462c3
commit 64ab20cc95
42 changed files with 1533 additions and 40 deletions
@@ -0,0 +1,25 @@
+import { expect, test } from "bun:test";
+import { createDb, defineLedger, upsertSeedData } from "../src/index.ts";
+import { sqlite } from "../src/adapters/sqlite.ts";
+
+test("portable seed upserts and ledgers remove application boilerplate", async () => {
+  const db = createDb(sqlite(":memory:"));
+  await db.exec("CREATE TABLE plans (code TEXT PRIMARY KEY, credits INTEGER NOT NULL)");
+  await upsertSeedData(db, { code: "free", credits: 10 }, "plans", { key: "code" });
+  await upsertSeedData(db, { code: "free", credits: 20 }, "plans", { key: "code" });
+  expect((await db.one<{ credits: number }>("SELECT credits FROM plans"))?.credits).toBe(20);
+  await db.exec(
+    "CREATE TABLE ledger (id INTEGER PRIMARY KEY, user_id TEXT, delta INTEGER, kind TEXT, reason TEXT, ref TEXT)",
+  );
+  const ledger = defineLedger({
+    db: () => db,
+    table: "ledger",
+    subjectColumn: "user_id",
+    amountColumn: "delta",
+  });
+  await ledger.credit("u1", 10, "grant");
+  expect(await ledger.debit("u1", 4, "use")).toBe(true);
+  expect(await ledger.balance("u1")).toBe(6);
+  expect(await ledger.debit("u1", 7, "too much")).toBe(false);
+  await db.close();
+});