78 lines
3.3 KiB
TypeScript
78 lines
3.3 KiB
TypeScript
import { NextRequest, NextResponse } from "next/server";
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import { prisma } from "@/lib/prisma";
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// GET /api/aweme/around?awemeId=xxxx
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// Response: { prev?: { type: 'video'|'image', aweme_id: string, created_at: string }, next?: { ... } }
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export async function GET(req: NextRequest) {
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const { searchParams } = new URL(req.url);
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const awemeId = searchParams.get("awemeId");
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if (!awemeId) {
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return NextResponse.json({ error: "missing awemeId" }, { status: 400 });
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}
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// Find current item timestamp from either table
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const [video, post] = await Promise.all([
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prisma.video.findUnique({ where: { aweme_id: awemeId }, select: { aweme_id: true, created_at: true } }),
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prisma.imagePost.findUnique({ where: { aweme_id: awemeId }, select: { aweme_id: true, created_at: true } }),
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]);
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const current = video ?? post;
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if (!current) {
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return NextResponse.json({ error: "aweme not found" }, { status: 404 });
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}
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const createdAt = current.created_at as unknown as Date;
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// Newer than current (prev in a desc-ordered feed): pick the nearest newer by created_at
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const [newerVideo, newerPost] = await Promise.all([
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prisma.video.findFirst({
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where: { created_at: { gt: createdAt } },
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orderBy: { created_at: "asc" },
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select: { aweme_id: true, created_at: true },
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}),
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prisma.imagePost.findFirst({
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where: { created_at: { gt: createdAt } },
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orderBy: { created_at: "asc" },
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select: { aweme_id: true, created_at: true },
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}),
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]);
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// Older than current (next in a desc-ordered feed): pick the nearest older by created_at
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const [olderVideo, olderPost] = await Promise.all([
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prisma.video.findFirst({
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where: { created_at: { lt: createdAt } },
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orderBy: { created_at: "desc" },
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select: { aweme_id: true, created_at: true },
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}),
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prisma.imagePost.findFirst({
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where: { created_at: { lt: createdAt } },
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orderBy: { created_at: "desc" },
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select: { aweme_id: true, created_at: true },
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}),
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]);
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const pickPrev = (() => {
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const cands: { type: "video" | "image"; aweme_id: string; created_at: Date }[] = [];
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if (newerVideo) cands.push({ type: "video", aweme_id: newerVideo.aweme_id, created_at: newerVideo.created_at as unknown as Date });
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if (newerPost) cands.push({ type: "image", aweme_id: newerPost.aweme_id, created_at: newerPost.created_at as unknown as Date });
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if (cands.length === 0) return undefined;
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// nearest newer -> minimal created_at
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cands.sort((a, b) => +a.created_at - +b.created_at);
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const h = cands[0];
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return { type: h.type, aweme_id: h.aweme_id, created_at: h.created_at.toISOString() };
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})();
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const pickNext = (() => {
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const cands: { type: "video" | "image"; aweme_id: string; created_at: Date }[] = [];
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if (olderVideo) cands.push({ type: "video", aweme_id: olderVideo.aweme_id, created_at: olderVideo.created_at as unknown as Date });
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if (olderPost) cands.push({ type: "image", aweme_id: olderPost.aweme_id, created_at: olderPost.created_at as unknown as Date });
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if (cands.length === 0) return undefined;
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// nearest older -> maximal created_at among older
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cands.sort((a, b) => +b.created_at - +a.created_at);
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const h = cands[0];
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return { type: h.type, aweme_id: h.aweme_id, created_at: h.created_at.toISOString() };
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})();
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return NextResponse.json({ prev: pickPrev ?? null, next: pickNext ?? null });
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}
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