From cebec73f6dd70c4858b3bc4d4fe3721d37866117 Mon Sep 17 00:00:00 2001
From: Sanidhya Singh <sanidhyas3s@gmail.com>
Date: Tue, 23 Apr 2024 15:24:06 +0530
Subject: [PATCH] impr(backend): add ability to send report feedback to user
 about accepted and rejected reports (sanidhyas3s) (#5298)

!nuf
---
 backend/src/api/controllers/admin.ts | 81 ++++++++++++++++++++++++++++
 backend/src/api/routes/admin.ts      | 43 +++++++++++++++
 backend/src/dal/report.ts            | 15 ++++++
 3 files changed, 139 insertions(+)

diff --git a/backend/src/api/controllers/admin.ts b/backend/src/api/controllers/admin.ts
index 0db718021329..da8e66f63fb7 100644
--- a/backend/src/api/controllers/admin.ts
+++ b/backend/src/api/controllers/admin.ts
@@ -1,5 +1,86 @@
 import { MonkeyResponse } from "../../utils/monkey-response";
+import { buildMonkeyMail } from "../../utils/monkey-mail";
+import * as UserDAL from "../../dal/user";
+import * as ReportDAL from "../../dal/report";
 
 export async function test(): Promise<MonkeyResponse> {
   return new MonkeyResponse("OK");
 }
+
+export async function acceptReports(
+  req: MonkeyTypes.Request
+): Promise<MonkeyResponse> {
+  return handleReports(req, true);
+}
+
+export async function rejectReports(
+  req: MonkeyTypes.Request
+): Promise<MonkeyResponse> {
+  return handleReports(req, false);
+}
+
+export async function handleReports(
+  req: MonkeyTypes.Request,
+  accept: boolean
+): Promise<MonkeyResponse> {
+  const { reports } = req.body;
+  const reportIds = reports.map(({ reportId }) => reportId);
+
+  const reportsFromDb = await ReportDAL.getReports(reportIds);
+  const reportById = new Map(reportsFromDb.map((it) => [it.id, it]));
+
+  const existingReportIds = reportsFromDb.map((report) => report.id);
+  const missingReportIds = reportIds.filter(
+    (reportId) => !existingReportIds.includes(reportId)
+  );
+
+  if (missingReportIds.length > 0) {
+    return new MonkeyResponse(
+      `Reports not found for some IDs`,
+      missingReportIds,
+      404
+    );
+  }
+
+  await ReportDAL.deleteReports(reportIds);
+
+  for (const { reportId, reason } of reports) {
+    try {
+      const report = reportById.get(reportId);
+      if (!report) {
+        return new MonkeyResponse(
+          `Report not found for ID: ${reportId}`,
+          null,
+          404
+        );
+      }
+
+      let mailBody = "";
+      if (accept) {
+        mailBody = `Your report regarding ${report.type} ${
+          report.contentId
+        } (${report.reason.toLowerCase()}) has been approved. Thank you.`;
+      } else {
+        mailBody = `Sorry, but your report regarding ${report.type} ${
+          report.contentId
+        } (${report.reason.toLowerCase()}) has been denied. ${
+          reason !== undefined ? `\nReason: ${reason}` : ""
+        }`;
+      }
+
+      const mailSubject = accept ? "Report approved" : "Report denied";
+      const mail = buildMonkeyMail({
+        subject: mailSubject,
+        body: mailBody,
+      });
+      await UserDAL.addToInbox(
+        report.uid,
+        [mail],
+        req.ctx.configuration.users.inbox
+      );
+    } catch (e) {
+      return new MonkeyResponse(e.message, null, e.status);
+    }
+  }
+  return new MonkeyResponse("Reports removed and users notified.");
+}
diff --git a/backend/src/api/routes/admin.ts b/backend/src/api/routes/admin.ts
index 9097ace42c9c..2abf72e77114 100644
--- a/backend/src/api/routes/admin.ts
+++ b/backend/src/api/routes/admin.ts
@@ -48,4 +48,47 @@ router.post(
   asyncHandler(toggleBan)
 );
 
+router.post(
+  "/report/accept",
+  authenticateRequest({
+    noCache: true,
+  }),
+  checkIfUserIsAdmin(),
+  validateRequest({
+    body: {
+      reports: joi
+        .array()
+        .items(
+          joi.object({
+            reportId: joi.string().required(),
+          })
+        )
+        .required(),
+    },
+  }),
+  asyncHandler(AdminController.acceptReports)
+);
+
+router.post(
+  "/report/reject",
+  authenticateRequest({
+    noCache: true,
+  }),
+  checkIfUserIsAdmin(),
+  validateRequest({
+    body: {
+      reports: joi
+        .array()
+        .items(
+          joi.object({
+            reportId: joi.string().required(),
+            reason: joi.string().optional(),
+          })
+        )
+        .required(),
+    },
+  }),
+  asyncHandler(AdminController.rejectReports)
+);
+
 export default router;
diff --git a/backend/src/dal/report.ts b/backend/src/dal/report.ts
index 8e2414085b02..7f746019c9d8 100644
--- a/backend/src/dal/report.ts
+++ b/backend/src/dal/report.ts
@@ -3,6 +3,21 @@ import * as db from "../init/db";
 
 const COLLECTION_NAME = "reports";
 
+export async function getReports(
+  reportIds: string[]
+): Promise<MonkeyTypes.Report[]> {
+  const query = { id: { $in: reportIds } };
+  return await db
+    .collection<MonkeyTypes.Report>(COLLECTION_NAME)
+    .find(query)
+    .toArray();
+}
+
+export async function deleteReports(reportIds: string[]): Promise<void> {
+  const query = { id: { $in: reportIds } };
+  await db.collection(COLLECTION_NAME).deleteMany(query);
+}
+
 export async function createReport(
   report: MonkeyTypes.Report,
   maxReports: number,