Files
koc-loop/app/api/screenshot-task-export/route.ts

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import { zipSync, strToU8 } from "fflate";
import { adminForbidden, isAdminRequest } from "../../../lib/admin-auth";
import { ensureSchema, getRawDb, getUploadBucket } from "../../../lib/mvp-db";
import { parseResultScreenshotKeys } from "../../../lib/result-screenshots";
function safeName(value: string) {
return value.replace(/[\\/:*?"<>|\r\n]/g, "_").trim().slice(0, 60) || "KOC";
}
function csvCell(value: unknown) {
const text = String(value ?? "");
return `"${text.replaceAll('"', '""')}"`;
}
export async function GET(request: Request) {
if (!(await isAdminRequest(request))) return adminForbidden();
try {
await ensureSchema();
const taskId = new URL(request.url).searchParams.get("task")?.trim();
if (!taskId) {
return Response.json({ error: "缺少任务参数" }, { status: 400 });
}
const task = await getRawDb()
.prepare("SELECT name, task_type FROM tasks WHERE id = ?")
.bind(taskId)
.first<{ name: string; task_type: string }>();
if (!task || task.task_type !== "screenshot_collect") {
return Response.json({ error: "没有找到截图回收任务" }, { status: 404 });
}
const rows = await getRawDb()
.prepare(
`SELECT d.id, d.result_screenshot_key, d.result_submitted_at,
d.claimed_at, c.source_row, c.title, p.name AS partner_name,
cl.claimant_name
FROM distributions d
JOIN contents c ON c.id = d.content_id
JOIN partners p ON p.id = d.partner_id
LEFT JOIN claims cl ON cl.id = d.claim_id
WHERE d.task_id = ?
ORDER BY COALESCE(c.source_row, 999999), d.claimed_at, d.id`,
)
.bind(taskId)
.all<{
id: string;
result_screenshot_key: string | null;
result_submitted_at: string | null;
claimed_at: string;
source_row: number | null;
title: string;
partner_name: string;
claimant_name: string | null;
}>();
const files: Record<string, Uint8Array> = {};
const manifest = [
["序号", "搜索关键词", "领取人", "领取时间", "提交时间", "文件名"],
];
let exported = 0;
for (const [rowIndex, row] of rows.results.entries()) {
const fileNames: string[] = [];
const screenshotKeys = row.result_submitted_at
? parseResultScreenshotKeys(row.result_screenshot_key)
: [];
for (const [imageIndex, screenshotKey] of screenshotKeys.entries()) {
const object = await getUploadBucket().get(screenshotKey);
if (!object) continue;
const extension = screenshotKey.split(".").at(-1) || "jpg";
const fileName = `${String(row.source_row ?? rowIndex + 1).padStart(3, "0")}-${safeName(row.claimant_name || row.partner_name)}-${imageIndex + 1}.${extension}`;
files[fileName] = new Uint8Array(await object.arrayBuffer());
fileNames.push(fileName);
exported += 1;
}
manifest.push([
String(row.source_row ?? ""),
row.title,
row.claimant_name || row.partner_name,
row.claimed_at,
row.result_submitted_at || "",
fileNames.join(""),
]);
}
files["回收清单.csv"] = strToU8(
`\uFEFF${manifest.map((cells) => cells.map(csvCell).join(",")).join("\r\n")}`,
);
const archive = zipSync(files, { level: 0 });
const headers = new Headers({
"Content-Type": "application/zip",
"Content-Disposition": `attachment; filename*=UTF-8''${encodeURIComponent(`${safeName(task.name)}-截图回收.zip`)}`,
"Cache-Control": "private, no-store",
"X-KOC-Exported-Count": String(exported),
});
const body = archive.buffer.slice(
archive.byteOffset,
archive.byteOffset + archive.byteLength,
) as ArrayBuffer;
return new Response(body, { headers });
} catch (error) {
return Response.json(
{ error: error instanceof Error ? error.message : "截图打包失败" },
{ status: 500 },
);
}
}