Interleaved Decks: New item to choose for 'new card gather order' option.

ftl/core/deck-config.ftl

@@ -142,6 +142,13 @@ deck-config-new-gather-priority-tooltip-2 =
     can stop before all subdecks have been checked. This order is fastest in large collections, and
     allows you to prioritize subdecks that are closer to the top.
     
+    `Interleaved Decks`: Gathers cards by taking one card at a time
+    from each deck in order. This allows new cards to be distributed
+    evenly across decks. Cards from each subdeck are gathered in
+    ascending position. If the number of decks are not equal to the
+    daily limit of the selected deck, the last round of cards will be
+    drawn from a random sample of decks.
+    
     `Ascending position`: Gathers cards by ascending position (due #), which is typically
     the oldest-added first.
     
@@ -197,6 +204,8 @@ deck-config-display-order-will-use-current-deck =
 deck-config-new-gather-priority-deck = Deck
 # Gather new cards ordered by deck, then ordered by random notes, ensuring all cards of the same note are grouped together.
 deck-config-new-gather-priority-deck-then-random-notes = Deck, then random notes
+# Gather new cards by interleaving decks, taking one card at a time from each deck in order.
+deck-config-new-gather-priority-interleaved-decks = Interleaved Decks
 # Gather new cards ordered by position number, ascending (lowest to highest).
 deck-config-new-gather-priority-position-lowest-first = Ascending position
 # Gather new cards ordered by position number, descending (highest to lowest).

proto/anki/deck_config.proto

@@ -69,6 +69,8 @@ message DeckConfig {
       // Notes are randomly picked from each deck in alphabetical order.
       // Siblings are consecutive, provided they have the same position.
       NEW_CARD_GATHER_PRIORITY_DECK_THEN_RANDOM_NOTES = 5;
+      // One card from each deck at a time, ascending position in each deck.
+      NEW_CARD_GATHER_PRIORITY_INTERLEAVED_DECKS = 6;
       // Ascending position.
       // Siblings are consecutive, provided they have the same position.
       NEW_CARD_GATHER_PRIORITY_LOWEST_POSITION = 1;

rslib/src/scheduler/queue/builder/gathering.rs

@@ -69,6 +69,10 @@ impl QueueBuilder {
             NewCardGatherPriority::DeckThenRandomNotes => {
                 self.gather_new_cards_by_deck(col, NewCardSorting::RandomNotes(salt))
             }
+            NewCardGatherPriority::InterleavedDecks => {
+                // TODO: Actually implement the new gathering option
+                self.gather_new_cards_by_deck(col, NewCardSorting::RandomNotes(salt))
+            }
             NewCardGatherPriority::LowestPosition => {
                 self.gather_new_cards_sorted(col, NewCardSorting::LowestPosition)
             }

ts/routes/deck-options/choices.ts

@@ -25,6 +25,10 @@ export function newGatherPriorityChoices(): Choice<DeckConfig_Config_NewCardGath
             label: tr.deckConfigNewGatherPriorityDeckThenRandomNotes(),
             value: DeckConfig_Config_NewCardGatherPriority.DECK_THEN_RANDOM_NOTES,
         },
+        {
+            label: tr.deckConfigNewGatherPriorityInterleavedDecks(),
+            value: DeckConfig_Config_NewCardGatherPriority.INTERLEAVED_DECKS,
+        },
         {
             label: tr.deckConfigNewGatherPriorityPositionLowestFirst(),
             value: DeckConfig_Config_NewCardGatherPriority.LOWEST_POSITION,