init

lib/models/garmin-auth.ts

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+import type { IOauth1Token } from "garmin-connect/dist/garmin/types";
+import { getDb } from "@/lib/db";
+import type { GarminPendingMfa } from "@/lib/garmin/sso";
+
+const AUTH_COLLECTION = "garmin_auth";
+const PENDING_COLLECTION = "garmin_login_pending";
+
+type GarminAuthDoc = { _id: "tokens"; oauth1Token: IOauth1Token; updatedAt: Date };
+type GarminPendingDoc = { _id: "pending"; state: GarminPendingMfa; createdAt: Date };
+
+export async function getSavedOauth1Token(): Promise<IOauth1Token | null> {
+  const db = await getDb();
+  const doc = await db.collection<GarminAuthDoc>(AUTH_COLLECTION).findOne({ _id: "tokens" });
+  return doc?.oauth1Token ?? null;
+}
+
+export async function saveOauth1Token(oauth1Token: IOauth1Token): Promise<void> {
+  const db = await getDb();
+  await db
+    .collection<GarminAuthDoc>(AUTH_COLLECTION)
+    .updateOne({ _id: "tokens" }, { $set: { oauth1Token, updatedAt: new Date() } }, { upsert: true });
+}
+
+export async function savePendingMfaState(state: GarminPendingMfa): Promise<void> {
+  const db = await getDb();
+  await db
+    .collection<GarminPendingDoc>(PENDING_COLLECTION)
+    .updateOne({ _id: "pending" }, { $set: { state, createdAt: new Date() } }, { upsert: true });
+}
+
+export async function getPendingMfaState(): Promise<GarminPendingMfa | null> {
+  const db = await getDb();
+  const doc = await db.collection<GarminPendingDoc>(PENDING_COLLECTION).findOne({ _id: "pending" });
+  return doc?.state ?? null;
+}
+
+export async function clearPendingMfaState(): Promise<void> {
+  const db = await getDb();
+  await db.collection<GarminPendingDoc>(PENDING_COLLECTION).deleteOne({ _id: "pending" });
+}