경매 구현

2026-01-22 18:23:43 +00:00
parent b5b761984e
commit 1ed9953c67
5 changed files with 977 additions and 13 deletions
@@ -15,6 +15,7 @@ import { troopRouter } from './router/troop/index.js';
 import { turnDaemonRouter } from './router/turnDaemon/index.js';
 import { turnsRouter } from './router/turns/index.js';
 import { worldRouter } from './router/world/index.js';
+import { auctionRouter } from './router/auction/index.js';

 export const appRouter = router({
    health: healthRouter,
@@ -32,6 +33,7 @@ export const appRouter = router({
    nation: nationRouter,
    npc: npcRouter,
    turnDaemon: turnDaemonRouter,
+    auction: auctionRouter,
 });

 export type AppRouter = typeof appRouter;
@@ -0,0 +1,635 @@
+import { TRPCError } from '@trpc/server';
+import { randomUUID } from 'node:crypto';
+import { z } from 'zod';
+
+import { authedProcedure, router } from '../../trpc.js';
+import type { DatabaseClient, GameApiContext, GeneralRow } from '../../context.js';
+import { buildAuctionTimerKeys } from '../../auction/keys.js';
+import { GamePrisma } from '@sammo-ts/infra';
+import { ItemLoader, isItemKey } from '@sammo-ts/logic';
+
+const COEFF_EXTENSION_MINUTES_PER_BID = 1 / 6;
+const MIN_EXTENSION_MINUTES_PER_BID = 1;
+
+const zBidInput = z.object({
+    auctionId: z.number().int().positive(),
+    amount: z.number().int().positive(),
+});
+
+const zUniqueBidInput = zBidInput.extend({
+    tryExtendCloseDate: z.boolean().optional(),
+});
+
+type AuctionType = 'BUY_RICE' | 'SELL_RICE' | 'UNIQUE_ITEM';
+
+interface AuctionRow {
+    id: number;
+    type: AuctionType;
+    targetCode: string | null;
+    hostGeneralId: number;
+    detail: unknown;
+    status: string;
+    closeAt: Date;
+}
+
+interface AuctionDetail {
+    title?: string;
+    amount?: number;
+    isReverse?: boolean;
+    startBidAmount?: number;
+    finishBidAmount?: number | null;
+    availableLatestBidCloseDate?: string | null;
+    remainCloseDateExtensionCnt?: number | null;
+}
+
+interface AuctionBidRow {
+    id: number;
+    generalId: number;
+    amount: number;
+    meta: Record<string, unknown>;
+}
+
+const parseDetail = (detail: unknown): AuctionDetail => {
+    if (!detail || typeof detail !== 'object') {
+        return {};
+    }
+    return detail as AuctionDetail;
+};
+
+const toTurnMinutes = (tickSeconds: number): number => Math.max(1, Math.round(tickSeconds / 60));
+
+const resolveTurnMinutes = async (db: DatabaseClient) => {
+    const rows = (await db.$queryRaw(
+        GamePrisma.sql`SELECT tick_seconds as "tickSeconds" FROM world_state ORDER BY id LIMIT 1`
+    )) as Array<{ tickSeconds: number }>;
+    return toTurnMinutes(rows[0]?.tickSeconds ?? 60);
+};
+
+const requireAuth = (ctx: GameApiContext): NonNullable<GameApiContext['auth']> => {
+    if (!ctx.auth) {
+        throw new TRPCError({
+            code: 'UNAUTHORIZED',
+            message: 'Unauthorized',
+        });
+    }
+    return ctx.auth;
+};
+
+const ensureGeneral = async (db: DatabaseClient, userId: string): Promise<GeneralRow> => {
+    const general = await db.general.findFirst({
+        where: { userId },
+    });
+    if (!general) {
+        throw new TRPCError({
+            code: 'UNAUTHORIZED',
+            message: 'General not found.',
+        });
+    }
+    return general;
+};
+
+const loadAuction = async (
+    db: DatabaseClient,
+    auctionId: number
+): Promise<AuctionRow | null> => {
+    const rows = (await db.$queryRaw(
+        GamePrisma.sql`
+            SELECT id,
+                type,
+                target_code as "targetCode",
+                host_general_id as "hostGeneralId",
+                detail,
+                status,
+                close_at as "closeAt"
+            FROM auction
+            WHERE id = ${auctionId}
+        `
+    )) as AuctionRow[];
+    return rows[0] ?? null;
+};
+
+const loadHighestBid = async (
+    db: DatabaseClient,
+    auctionId: number,
+    isReverse: boolean
+): Promise<AuctionBidRow | null> => {
+    const rows = (await db.$queryRaw(
+        isReverse
+            ? GamePrisma.sql`
+                SELECT id, general_id as "generalId", amount, meta
+                FROM auction_bid
+                WHERE auction_id = ${auctionId}
+                ORDER BY amount ASC, id ASC
+                LIMIT 1
+              `
+            : GamePrisma.sql`
+                SELECT id, general_id as "generalId", amount, meta
+                FROM auction_bid
+                WHERE auction_id = ${auctionId}
+                ORDER BY amount DESC, id ASC
+                LIMIT 1
+              `
+    )) as AuctionBidRow[];
+    return rows[0] ?? null;
+};
+
+const loadMyPrevBid = async (
+    db: DatabaseClient,
+    auctionId: number,
+    generalId: number,
+    isReverse: boolean
+): Promise<AuctionBidRow | null> => {
+    const rows = (await db.$queryRaw(
+        isReverse
+            ? GamePrisma.sql`
+                SELECT id, general_id as "generalId", amount, meta
+                FROM auction_bid
+                WHERE auction_id = ${auctionId} AND general_id = ${generalId}
+                ORDER BY amount ASC, id ASC
+                LIMIT 1
+              `
+            : GamePrisma.sql`
+                SELECT id, general_id as "generalId", amount, meta
+                FROM auction_bid
+                WHERE auction_id = ${auctionId} AND general_id = ${generalId}
+                ORDER BY amount DESC, id ASC
+                LIMIT 1
+              `
+    )) as AuctionBidRow[];
+    return rows[0] ?? null;
+};
+
+const cancelAuction = async (
+    db: DatabaseClient,
+    auctionId: number,
+    reason: string
+) => {
+    const now = new Date();
+    await db.$executeRaw(
+        GamePrisma.sql`
+            UPDATE auction
+            SET status = 'CANCELED',
+                finished_at = ${now},
+                updated_at = ${now},
+                detail = jsonb_set(detail, '{cancelReason}', to_jsonb(${reason}), true)
+            WHERE id = ${auctionId}
+        `
+    );
+};
+
+const extendCloseDate = (options: {
+    now: Date;
+    closeAt: Date;
+    turnMinutes: number;
+    availableLatestBidCloseDate?: Date | null;
+}) => {
+    const { now, closeAt, turnMinutes, availableLatestBidCloseDate } = options;
+    const extendMinutes = Math.max(MIN_EXTENSION_MINUTES_PER_BID, turnMinutes * COEFF_EXTENSION_MINUTES_PER_BID);
+    const extended = new Date(now.getTime() + extendMinutes * 60 * 1000);
+    if (extended.getTime() <= closeAt.getTime()) {
+        return closeAt;
+    }
+    if (availableLatestBidCloseDate && extended.getTime() > availableLatestBidCloseDate.getTime()) {
+        return availableLatestBidCloseDate;
+    }
+    return extended;
+};
+
+const shouldUsePrevBid = (highestBid: AuctionBidRow | null, myPrevBid: AuctionBidRow | null): AuctionBidRow | null => {
+    if (!myPrevBid) {
+        return null;
+    }
+    if (!highestBid) {
+        return myPrevBid;
+    }
+    if (highestBid.id !== myPrevBid.id) {
+        return null;
+    }
+    return myPrevBid;
+};
+
+const runInTransaction = async <T>(db: DatabaseClient, fn: (tx: DatabaseClient) => Promise<T>): Promise<T> => {
+    if (db.$transaction) {
+        return db.$transaction(fn);
+    }
+    return fn(db);
+};
+
+export const auctionRouter = router({
+    bidBuyRice: authedProcedure.input(zBidInput).mutation(async ({ ctx, input }) => {
+        const auth = requireAuth(ctx);
+        const general = await ensureGeneral(ctx.db, auth.user.id);
+        const auction = await loadAuction(ctx.db, input.auctionId);
+        if (!auction || auction.type !== 'BUY_RICE') {
+            throw new TRPCError({ code: 'NOT_FOUND', message: 'Auction not found.' });
+        }
+        if (auction.status !== 'OPEN') {
+            throw new TRPCError({ code: 'BAD_REQUEST', message: '경매가 종료되었습니다.' });
+        }
+
+        const now = new Date();
+        if (auction.closeAt <= now) {
+            throw new TRPCError({ code: 'BAD_REQUEST', message: '경매가 종료되었습니다.' });
+        }
+
+        const detail = parseDetail(auction.detail);
+        const amount = detail.amount ?? 0;
+        if (amount <= 0) {
+            throw new TRPCError({ code: 'BAD_REQUEST', message: '거래량 정보가 없습니다.' });
+        }
+        const isReverse = detail.isReverse === true;
+        const highestBid = await loadHighestBid(ctx.db, auction.id, isReverse);
+        const myPrevBidRaw = await loadMyPrevBid(ctx.db, auction.id, general.id, isReverse);
+        const myPrevBid = shouldUsePrevBid(highestBid, myPrevBidRaw);
+
+        if (!highestBid && detail.startBidAmount && input.amount < detail.startBidAmount) {
+            throw new TRPCError({ code: 'BAD_REQUEST', message: '시작가보다 낮습니다.' });
+        }
+        if (!isReverse && highestBid && input.amount <= highestBid.amount) {
+            throw new TRPCError({ code: 'BAD_REQUEST', message: '현재입찰가보다 높게 입찰해야 합니다.' });
+        }
+        if (isReverse && highestBid && input.amount >= highestBid.amount) {
+            throw new TRPCError({ code: 'BAD_REQUEST', message: '현재입찰가보다 낮게 입찰해야 합니다.' });
+        }
+
+        const morePoint = input.amount - (myPrevBid?.amount ?? 0);
+        if (morePoint <= 0) {
+            throw new TRPCError({ code: 'BAD_REQUEST', message: '입찰가가 유효하지 않습니다.' });
+        }
+        if (general.gold < morePoint) {
+            throw new TRPCError({ code: 'BAD_REQUEST', message: '금이 부족합니다.' });
+        }
+
+        const eventId = randomUUID();
+        const eventAt = now;
+        const turnMinutes = await resolveTurnMinutes(ctx.db);
+        const availableLatestBidCloseDate = detail.availableLatestBidCloseDate
+            ? new Date(detail.availableLatestBidCloseDate)
+            : null;
+        const nextCloseAt = extendCloseDate({
+            now,
+            closeAt: auction.closeAt,
+            turnMinutes,
+            availableLatestBidCloseDate,
+        });
+
+        await runInTransaction(ctx.db, async (tx) => {
+            await tx.$executeRaw(
+                GamePrisma.sql`
+                    INSERT INTO auction_bid (auction_id, general_id, amount, event_id, event_at, meta)
+                    VALUES (${auction.id}, ${general.id}, ${input.amount}, ${eventId}, ${eventAt}, ${JSON.stringify({ tryExtendCloseDate: true })}::jsonb)
+                `
+            );
+
+            await tx.general.update({
+                where: { id: general.id },
+                data: { gold: general.gold - morePoint },
+            });
+
+            if (highestBid && highestBid.generalId !== general.id && !myPrevBid) {
+                const prev = await tx.general.findUnique({ where: { id: highestBid.generalId } });
+                if (!prev) {
+                    await cancelAuction(tx, auction.id, '중복 입찰 등 문제가 발생하여 취소');
+                    throw new TRPCError({ code: 'CONFLICT', message: '경매가 취소되었습니다.' });
+                }
+                await tx.general.update({
+                    where: { id: prev.id },
+                    data: { gold: prev.gold + highestBid.amount },
+                });
+            }
+
+            const updated = await tx.$executeRaw(
+                GamePrisma.sql`
+                    UPDATE auction
+                    SET close_at = ${nextCloseAt},
+                        latest_event_id = ${eventId},
+                        latest_event_at = ${eventAt},
+                        updated_at = ${eventAt}
+                    WHERE id = ${auction.id}
+                      AND status = 'OPEN'
+                      AND (
+                        latest_event_at < ${eventAt}
+                        OR (latest_event_at = ${eventAt} AND latest_event_id < ${eventId})
+                      )
+                `
+            );
+
+            if (updated === 0) {
+                await cancelAuction(tx, auction.id, '중복 입찰 등 문제가 발생하여 취소');
+                await tx.general.update({
+                    where: { id: general.id },
+                    data: { gold: general.gold },
+                });
+                throw new TRPCError({ code: 'CONFLICT', message: '경매가 취소되었습니다.' });
+            }
+        });
+
+        const timerKeys = buildAuctionTimerKeys(ctx.profile.name);
+        await ctx.redis.zAdd(timerKeys.timerKey, [{ score: nextCloseAt.getTime(), value: String(auction.id) }]);
+
+        return { ok: true };
+    }),
+    bidSellRice: authedProcedure.input(zBidInput).mutation(async ({ ctx, input }) => {
+        const auth = requireAuth(ctx);
+        const general = await ensureGeneral(ctx.db, auth.user.id);
+        const auction = await loadAuction(ctx.db, input.auctionId);
+        if (!auction || auction.type !== 'SELL_RICE') {
+            throw new TRPCError({ code: 'NOT_FOUND', message: 'Auction not found.' });
+        }
+        if (auction.status !== 'OPEN') {
+            throw new TRPCError({ code: 'BAD_REQUEST', message: '경매가 종료되었습니다.' });
+        }
+
+        const now = new Date();
+        if (auction.closeAt <= now) {
+            throw new TRPCError({ code: 'BAD_REQUEST', message: '경매가 종료되었습니다.' });
+        }
+
+        const detail = parseDetail(auction.detail);
+        const amount = detail.amount ?? 0;
+        if (amount <= 0) {
+            throw new TRPCError({ code: 'BAD_REQUEST', message: '거래량 정보가 없습니다.' });
+        }
+        const isReverse = detail.isReverse === true;
+        const highestBid = await loadHighestBid(ctx.db, auction.id, isReverse);
+        const myPrevBidRaw = await loadMyPrevBid(ctx.db, auction.id, general.id, isReverse);
+        const myPrevBid = shouldUsePrevBid(highestBid, myPrevBidRaw);
+
+        if (!highestBid && detail.startBidAmount && input.amount < detail.startBidAmount) {
+            throw new TRPCError({ code: 'BAD_REQUEST', message: '시작가보다 낮습니다.' });
+        }
+        if (!isReverse && highestBid && input.amount <= highestBid.amount) {
+            throw new TRPCError({ code: 'BAD_REQUEST', message: '현재입찰가보다 높게 입찰해야 합니다.' });
+        }
+        if (isReverse && highestBid && input.amount >= highestBid.amount) {
+            throw new TRPCError({ code: 'BAD_REQUEST', message: '현재입찰가보다 낮게 입찰해야 합니다.' });
+        }
+
+        const morePoint = input.amount - (myPrevBid?.amount ?? 0);
+        if (morePoint <= 0) {
+            throw new TRPCError({ code: 'BAD_REQUEST', message: '입찰가가 유효하지 않습니다.' });
+        }
+        if (general.rice < morePoint) {
+            throw new TRPCError({ code: 'BAD_REQUEST', message: '쌀이 부족합니다.' });
+        }
+
+        const eventId = randomUUID();
+        const eventAt = now;
+        const turnMinutes = await resolveTurnMinutes(ctx.db);
+        const availableLatestBidCloseDate = detail.availableLatestBidCloseDate
+            ? new Date(detail.availableLatestBidCloseDate)
+            : null;
+        const nextCloseAt = extendCloseDate({
+            now,
+            closeAt: auction.closeAt,
+            turnMinutes,
+            availableLatestBidCloseDate,
+        });
+
+        await runInTransaction(ctx.db, async (tx) => {
+            await tx.$executeRaw(
+                GamePrisma.sql`
+                    INSERT INTO auction_bid (auction_id, general_id, amount, event_id, event_at, meta)
+                    VALUES (${auction.id}, ${general.id}, ${input.amount}, ${eventId}, ${eventAt}, ${JSON.stringify({ tryExtendCloseDate: true })}::jsonb)
+                `
+            );
+
+            await tx.general.update({
+                where: { id: general.id },
+                data: { rice: general.rice - morePoint },
+            });
+
+            if (highestBid && highestBid.generalId !== general.id && !myPrevBid) {
+                const prev = await tx.general.findUnique({ where: { id: highestBid.generalId } });
+                if (!prev) {
+                    await cancelAuction(tx, auction.id, '중복 입찰 등 문제가 발생하여 취소');
+                    throw new TRPCError({ code: 'CONFLICT', message: '경매가 취소되었습니다.' });
+                }
+                await tx.general.update({
+                    where: { id: prev.id },
+                    data: { rice: prev.rice + highestBid.amount },
+                });
+            }
+
+            const updated = await tx.$executeRaw(
+                GamePrisma.sql`
+                    UPDATE auction
+                    SET close_at = ${nextCloseAt},
+                        latest_event_id = ${eventId},
+                        latest_event_at = ${eventAt},
+                        updated_at = ${eventAt}
+                    WHERE id = ${auction.id}
+                      AND status = 'OPEN'
+                      AND (
+                        latest_event_at < ${eventAt}
+                        OR (latest_event_at = ${eventAt} AND latest_event_id < ${eventId})
+                      )
+                `
+            );
+
+            if (updated === 0) {
+                await cancelAuction(tx, auction.id, '중복 입찰 등 문제가 발생하여 취소');
+                await tx.general.update({
+                    where: { id: general.id },
+                    data: { rice: general.rice },
+                });
+                throw new TRPCError({ code: 'CONFLICT', message: '경매가 취소되었습니다.' });
+            }
+        });
+
+        const timerKeys = buildAuctionTimerKeys(ctx.profile.name);
+        await ctx.redis.zAdd(timerKeys.timerKey, [{ score: nextCloseAt.getTime(), value: String(auction.id) }]);
+
+        return { ok: true };
+    }),
+    bidUnique: authedProcedure.input(zUniqueBidInput).mutation(async ({ ctx, input }) => {
+        const auth = requireAuth(ctx);
+        const general = await ensureGeneral(ctx.db, auth.user.id);
+        const auction = await loadAuction(ctx.db, input.auctionId);
+        if (!auction || auction.type !== 'UNIQUE_ITEM') {
+            throw new TRPCError({ code: 'NOT_FOUND', message: 'Auction not found.' });
+        }
+        if (auction.status !== 'OPEN') {
+            throw new TRPCError({ code: 'BAD_REQUEST', message: '경매가 종료되었습니다.' });
+        }
+
+        const now = new Date();
+        if (auction.closeAt <= now) {
+            throw new TRPCError({ code: 'BAD_REQUEST', message: '경매가 종료되었습니다.' });
+        }
+
+        const detail = parseDetail(auction.detail);
+        const isReverse = detail.isReverse === true;
+        const highestBid = await loadHighestBid(ctx.db, auction.id, isReverse);
+        const myPrevBidRaw = await loadMyPrevBid(ctx.db, auction.id, general.id, isReverse);
+        const myPrevBid = shouldUsePrevBid(highestBid, myPrevBidRaw);
+
+        if (highestBid) {
+            if (input.amount < highestBid.amount * 1.01) {
+                throw new TRPCError({ code: 'BAD_REQUEST', message: '현재입찰가보다 1% 높게 입찰해야 합니다.' });
+            }
+            if (input.amount < highestBid.amount + 10) {
+                throw new TRPCError({ code: 'BAD_REQUEST', message: '현재입찰가보다 10 포인트 높게 입찰해야 합니다.' });
+            }
+        } else if (detail.startBidAmount && input.amount < detail.startBidAmount) {
+            throw new TRPCError({ code: 'BAD_REQUEST', message: '시작가보다 낮습니다.' });
+        }
+
+        const itemKey = auction.targetCode;
+        if (!itemKey || !isItemKey(itemKey)) {
+            throw new TRPCError({ code: 'BAD_REQUEST', message: '아이템이 올바르지 않습니다.' });
+        }
+        const itemLoader = new ItemLoader();
+        const itemModule = await itemLoader.load(itemKey);
+        if (itemModule.buyable) {
+            throw new TRPCError({ code: 'BAD_REQUEST', message: '구매할 수 있는 아이템입니다.' });
+        }
+
+        const ownedItems = [general.horseCode, general.weaponCode, general.bookCode, general.itemCode].filter(
+            (value) => value && value !== 'None'
+        ) as string[];
+        for (const owned of ownedItems) {
+            if (!isItemKey(owned)) {
+                continue;
+            }
+            const ownedModule = await itemLoader.load(owned);
+            if (!ownedModule.buyable && ownedModule.slot === itemModule.slot) {
+                if (owned === itemKey) {
+                    throw new TRPCError({ code: 'BAD_REQUEST', message: '이미 그 유니크를 가지고 있습니다.' });
+                }
+                throw new TRPCError({ code: 'BAD_REQUEST', message: '이미 다른 유니크를 가지고 있습니다.' });
+            }
+        }
+
+        const openUniqueRows = (await ctx.db.$queryRaw(
+            GamePrisma.sql`
+                SELECT id, target_code as "targetCode"
+                FROM auction
+                WHERE status = 'OPEN' AND type = 'UNIQUE_ITEM'
+            `
+        )) as Array<{ id: number; targetCode: string }>;
+        if (openUniqueRows.length > 0) {
+            const auctionIds = openUniqueRows.map((row) => row.id);
+            const highestRows = (await ctx.db.$queryRaw(
+                GamePrisma.sql`
+                    SELECT bid.auction_id as "auctionId", bid.general_id as "generalId", bid.amount
+                    FROM auction_bid bid
+                    INNER JOIN (
+                        SELECT auction_id, MAX(amount) as max_amount
+                        FROM auction_bid
+                        WHERE auction_id IN (${GamePrisma.join(auctionIds)})
+                        GROUP BY auction_id
+                    ) max_bid
+                    ON bid.auction_id = max_bid.auction_id AND bid.amount = max_bid.max_amount
+                `
+            )) as Array<{ auctionId: number; generalId: number; amount: number }>;
+            for (const row of highestRows) {
+                if (row.generalId !== general.id || row.auctionId === auction.id) {
+                    continue;
+                }
+                const other = openUniqueRows.find((entry) => entry.id === row.auctionId);
+                if (!other || !other.targetCode || !isItemKey(other.targetCode)) {
+                    continue;
+                }
+                const otherItem = await itemLoader.load(other.targetCode);
+                if (otherItem.slot === itemModule.slot) {
+                    throw new TRPCError({ code: 'BAD_REQUEST', message: '1순위 입찰자인 경매중에 같은 부위가 있습니다.' });
+                }
+            }
+        }
+
+        const morePoint = input.amount - (myPrevBid?.amount ?? 0);
+        if (morePoint <= 0) {
+            throw new TRPCError({ code: 'BAD_REQUEST', message: '입찰가가 유효하지 않습니다.' });
+        }
+
+        const inheritPoint = await ctx.db.inheritancePoint.findUnique({
+            where: { userId_key: { userId: auth.user.id, key: 'previous' } },
+        });
+        if ((inheritPoint?.value ?? 0) < morePoint) {
+            throw new TRPCError({ code: 'BAD_REQUEST', message: '유산포인트가 부족합니다.' });
+        }
+
+        const eventId = randomUUID();
+        const eventAt = now;
+        const turnMinutes = await resolveTurnMinutes(ctx.db);
+        const availableLatestBidCloseDate = detail.availableLatestBidCloseDate
+            ? new Date(detail.availableLatestBidCloseDate)
+            : null;
+        const nextCloseAt = extendCloseDate({
+            now,
+            closeAt: auction.closeAt,
+            turnMinutes,
+            availableLatestBidCloseDate,
+        });
+
+        await runInTransaction(ctx.db, async (tx) => {
+            await tx.$executeRaw(
+                GamePrisma.sql`
+                    INSERT INTO auction_bid (auction_id, general_id, amount, event_id, event_at, meta)
+                    VALUES (
+                        ${auction.id},
+                        ${general.id},
+                        ${input.amount},
+                        ${eventId},
+                        ${eventAt},
+                        ${JSON.stringify({ tryExtendCloseDate: input.tryExtendCloseDate ?? true })}::jsonb
+                    )
+                `
+            );
+
+            const prevValue = inheritPoint?.value ?? 0;
+            await tx.inheritancePoint.upsert({
+                where: { userId_key: { userId: auth.user.id, key: 'previous' } },
+                update: { value: prevValue - morePoint },
+                create: { userId: auth.user.id, key: 'previous', value: prevValue - morePoint },
+            });
+
+            if (highestBid && highestBid.generalId !== general.id && !myPrevBid) {
+                const prev = await tx.general.findUnique({ where: { id: highestBid.generalId } });
+                if (!prev) {
+                    await cancelAuction(tx, auction.id, '중복 입찰 등 문제가 발생하여 취소');
+                    throw new TRPCError({ code: 'CONFLICT', message: '경매가 취소되었습니다.' });
+                }
+                const prevUserId = prev.userId ?? '';
+                if (prevUserId) {
+                    const prevPoint = await tx.inheritancePoint.findUnique({
+                        where: { userId_key: { userId: prevUserId, key: 'previous' } },
+                    });
+                    const nextValue = (prevPoint?.value ?? 0) + highestBid.amount;
+                    await tx.inheritancePoint.upsert({
+                        where: { userId_key: { userId: prevUserId, key: 'previous' } },
+                        update: { value: nextValue },
+                        create: { userId: prevUserId, key: 'previous', value: nextValue },
+                    });
+                }
+            }
+
+            const updated = await tx.$executeRaw(
+                GamePrisma.sql`
+                    UPDATE auction
+                    SET close_at = ${nextCloseAt},
+                        latest_event_id = ${eventId},
+                        latest_event_at = ${eventAt},
+                        updated_at = ${eventAt}
+                    WHERE id = ${auction.id}
+                      AND status = 'OPEN'
+                      AND (
+                        latest_event_at < ${eventAt}
+                        OR (latest_event_at = ${eventAt} AND latest_event_id < ${eventId})
+                      )
+                `
+            );
+
+            if (updated === 0) {
+                await cancelAuction(tx, auction.id, '중복 입찰 등 문제가 발생하여 취소');
+                throw new TRPCError({ code: 'CONFLICT', message: '경매가 취소되었습니다.' });
+            }
+        });
+
+        const timerKeys = buildAuctionTimerKeys(ctx.profile.name);
+        await ctx.redis.zAdd(timerKeys.timerKey, [{ score: nextCloseAt.getTime(), value: String(auction.id) }]);
+
+        return { ok: true };
+    }),
+});