feat: store logged account

web/src/repository/account.ts

@@ -0,0 +1,64 @@
+import { useDbContext } from "@/context/db/db";
+import { deriveDeviceKey, getDeviceId } from "@/util/deviceId";
+import { useCallback } from "react";
+
+export interface LocalAccount {
+  accountId: string;
+  label: string;
+  email: string;
+  access: { data: number[]; iv: number[] };
+  refresh: { data: number[]; iv: number[] };
+  updatedAt: string;
+}
+
+export interface CreateAccountRequest {
+  accountId: string;
+  label: string;
+  email: string;
+  access: string;
+  refresh: string;
+}
+
+export const useAccountRepo = () => {
+  const { db } = useDbContext();
+
+  const encryptToken = useCallback(async (token: string) => {
+    const encoder = new TextEncoder();
+
+    const iv = crypto.getRandomValues(new Uint8Array(12));
+
+    const deviceId = await getDeviceId();
+    const deviceKey = await deriveDeviceKey(deviceId);
+
+    const cipherText = await crypto.subtle.encrypt(
+      { name: "AES-GCM", iv },
+      deviceKey,
+      encoder.encode(token)
+    );
+
+    return {
+      data: Array.from(new Uint8Array(cipherText)),
+      iv: Array.from(iv),
+    };
+  }, []);
+
+  const save = useCallback(
+    async (req: CreateAccountRequest) => {
+      console.log({ db });
+      const access = await encryptToken(req.access);
+      const refresh = await encryptToken(req.refresh);
+
+      await db?.put?.("accounts", {
+        accountId: req.accountId,
+        label: req.label,
+        email: req.email,
+        access,
+        refresh,
+        updatedAt: new Date().toISOString(),
+      });
+    },
+    [db, encryptToken]
+  );
+
+  return { save };
+};