feat: validator decorator

hydro/script/problemStat.ts

@@ -0,0 +1,49 @@
+import * as db from '../service/db';
+import { STATUS } from '../model/builtin';
+import * as document from '../model/document';
+
+export const description = 'Recalcuates nSubmit and nAccept in problem status.';
+
+export async function run() {
+    const pipeline = [
+        {
+            $match: { hidden: false, type: { $ne: 'run' } },
+        },
+        {
+            $group: {
+                _id: { domainId: '$domainId', pid: '$pid', uid: '$uid' },
+                nSubmit: { $sum: 1 },
+                nAccept: {
+                    $sum: {
+                        $cond: [{ $eq: ['$status', STATUS.STATUS_ACCEPTED] }, 1, 0],
+                    },
+                },
+            },
+        },
+        {
+            $group: {
+                _id: { domainId: '$_id.domainId', pid: '$_id.pid' },
+                nSubmit: { $sum: '$nSubmit' },
+                nAccept: { $sum: { $min: ['$nAccept', 1] } },
+            },
+        },
+    ];
+    const bulk = db.collection('document').initializeUnorderedBulkOp();
+    db.collection('record').aggregate(pipeline).each(
+        (err, adoc: any) => bulk.find({
+            domainId: adoc._id.domainId,
+            docType: document.TYPE_PROBLEM,
+            docId: adoc._id.pid,
+        }).updateOne({
+            $set: {
+                nSubmit: adoc.nSubmit,
+                nAccept: adoc.nAccept,
+            },
+        }),
+    );
+    await bulk.execute();
+}
+
+export const validate = {};
+
+global.Hydro.script.problemStat = { run, description, validate };