serialize moment objs before writing to pouch

Author: NiloCK

packages/db/src/core/types/user.ts

@@ -48,13 +48,19 @@ export interface ScheduledCard {
    *
    * (Should probably be UTC adjusted so that performance is
    * not wonky across time zones)
+   * 
+   * Note: Stored as ISO string for PouchDB serialization compatibility,
+   * but can be consumed as Moment objects via moment.utc(reviewTime)
    */
-  reviewTime: Moment;
+  reviewTime: string | Moment;
 
   /**
    * The time at which this scheduled event was created.
+   * 
+   * Note: Stored as ISO string for PouchDB serialization compatibility,
+   * but can be consumed as Moment objects via moment.utc(scheduledAt)
    */
-  scheduledAt: Moment;
+  scheduledAt: string | Moment;
 
   /**
    * Classifying whether this card is scheduled on behalf of a

packages/db/src/impl/common/userDBHelpers.ts

@@ -125,9 +125,9 @@ export function scheduleCardReviewLocal(
   void userDB.put<ScheduledCard>({
     _id: DocTypePrefixes[DocType.SCHEDULED_CARD] + review.time.format(REVIEW_TIME_FORMAT),
     cardId: review.card_id,
-    reviewTime: review.time,
+    reviewTime: review.time.toISOString(),
     courseId: review.course_id,
-    scheduledAt: now,
+    scheduledAt: now.toISOString(),
     scheduledFor: review.scheduledFor,
     schedulingAgentId: review.schedulingAgentId,
   });

packages/db/src/impl/couch/index.ts

@@ -198,9 +198,9 @@ export function scheduleCardReview(review: {
   void getCouchUserDB(review.user).put<ScheduledCard>({
     _id: DocTypePrefixes[DocType.SCHEDULED_CARD] + review.time.format(REVIEW_TIME_FORMAT),
     cardId: review.card_id,
-    reviewTime: review.time,
+    reviewTime: review.time.toISOString(),
     courseId: review.course_id,
-    scheduledAt: now,
+    scheduledAt: now.toISOString(),
     scheduledFor: review.scheduledFor,
     schedulingAgentId: review.schedulingAgentId,
   });