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import { zValidator } from "@hono/zod-validator";
import { Hono } from "hono";
import { z } from "zod";
import { authMiddleware, Errors, getAuthUser } from "../middleware/index.js";
import {
type CardRepository,
cardRepository,
type DeckRepository,
deckRepository,
type ReviewLogRepository,
reviewLogRepository,
} from "../repositories/index.js";
import { createDeckSchema, updateDeckSchema } from "../schemas/index.js";
export interface DeckDependencies {
deckRepo: DeckRepository;
cardRepo: CardRepository;
reviewLogRepo: ReviewLogRepository;
}
const deckIdParamSchema = z.object({
id: z.uuid(),
});
const REVIEW_CARDS_LIMIT = 80;
export function createDecksRouter(deps: DeckDependencies) {
const { deckRepo, cardRepo, reviewLogRepo } = deps;
return new Hono()
.use("*", authMiddleware)
.get("/", async (c) => {
const user = getAuthUser(c);
const decks = await deckRepo.findByUserId(user.id);
const now = new Date();
const decksWithDueCount = await Promise.all(
decks.map(async (deck) => {
const [dueNewCards, dueReviewCards, reviewedNewCards] =
await Promise.all([
cardRepo.countDueNewCards(deck.id, now),
cardRepo.countDueReviewCards(deck.id, now),
reviewLogRepo.countTodayNewCardReviews(deck.id, now),
]);
// Apply the same limits as the study screen
const newCardBudget = Math.max(
0,
deck.newCardsPerDay - reviewedNewCards,
);
const newCardsToStudy = Math.min(dueNewCards, newCardBudget);
const reviewCardsToStudy = Math.min(
dueReviewCards,
REVIEW_CARDS_LIMIT,
);
const dueCardCount = newCardsToStudy + reviewCardsToStudy;
return { ...deck, dueCardCount };
}),
);
return c.json({ decks: decksWithDueCount }, 200);
})
.post("/", zValidator("json", createDeckSchema), async (c) => {
const user = getAuthUser(c);
const data = c.req.valid("json");
const deck = await deckRepo.create({
userId: user.id,
name: data.name,
description: data.description,
newCardsPerDay: data.newCardsPerDay,
});
return c.json({ deck }, 201);
})
.get("/:id", zValidator("param", deckIdParamSchema), async (c) => {
const user = getAuthUser(c);
const { id } = c.req.valid("param");
const deck = await deckRepo.findById(id, user.id);
if (!deck) {
throw Errors.notFound("Deck not found", "DECK_NOT_FOUND");
}
const now = new Date();
const [dueNewCards, dueReviewCards, reviewedNewCards] = await Promise.all(
[
cardRepo.countDueNewCards(deck.id, now),
cardRepo.countDueReviewCards(deck.id, now),
reviewLogRepo.countTodayNewCardReviews(deck.id, now),
],
);
const newCardBudget = Math.max(0, deck.newCardsPerDay - reviewedNewCards);
const newCardsToStudy = Math.min(dueNewCards, newCardBudget);
const reviewCardsToStudy = Math.min(dueReviewCards, REVIEW_CARDS_LIMIT);
const dueCardCount = newCardsToStudy + reviewCardsToStudy;
return c.json({ deck: { ...deck, dueCardCount } }, 200);
})
.put(
"/:id",
zValidator("param", deckIdParamSchema),
zValidator("json", updateDeckSchema),
async (c) => {
const user = getAuthUser(c);
const { id } = c.req.valid("param");
const data = c.req.valid("json");
const deck = await deckRepo.update(id, user.id, data);
if (!deck) {
throw Errors.notFound("Deck not found", "DECK_NOT_FOUND");
}
return c.json({ deck }, 200);
},
)
.delete("/:id", zValidator("param", deckIdParamSchema), async (c) => {
const user = getAuthUser(c);
const { id } = c.req.valid("param");
const deleted = await deckRepo.softDelete(id, user.id);
if (!deleted) {
throw Errors.notFound("Deck not found", "DECK_NOT_FOUND");
}
return c.json({ success: true }, 200);
});
}
export const decks = createDecksRouter({
deckRepo: deckRepository,
cardRepo: cardRepository,
reviewLogRepo: reviewLogRepository,
});
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