deleted seniors, request, and chapter

prisma/schema.prisma

@@ -98,7 +98,7 @@ model Senior {
   folder      String   @default("")
   Files       File[]
   ChapterID   String   @db.ObjectId
-  chapter     Chapter  @relation(fields: [ChapterID], references: [id])
+  chapter     Chapter  @relation(fields: [ChapterID], references: [id], onDelete: Cascade)
 }
 
 model File {
@@ -131,6 +131,8 @@ model ChapterRequest {
   motivation           String
   availabilities       String
   questions            String
+
+  chapter              Chapter?
 }
 
 model Chapter {
@@ -144,6 +146,9 @@ model Chapter {
   // Google Drive API related fields
   chapterFolder String   @default("")
   permissions   String[]
+
+  chapterRequestId String @db.ObjectId @unique
+  chapterRequest ChapterRequest @relation(fields: [chapterRequestId], references: [id], onDelete: Cascade)
 }
 
 model Resource {

src/app/api/chapter/[chapterId]/route.client.ts

@@ -0,0 +1,10 @@
+import { DeleteChapterResponse } from "./route.schema";
+
+export const DeleteChapter = async (chapterId: string) => {
+  const response = await fetch(`/api/chapter/${chapterId}`, {
+    method: "DELETE",
+  });
+  const json = await response.json();
+  console.log(json);
+  return DeleteChapterResponse.parse(json);
+};

src/app/api/chapter/[chapterId]/route.schema.ts

@@ -0,0 +1,23 @@
+import { z } from "zod";
+
+export const DeleteChapterResponse = z.discriminatedUnion("code", [
+  z.object({
+    code: z.literal("SUCCESS"),
+    message: z.literal("The chapter was successfully deleted"),
+  }),
+
+  z.object({
+    code: z.literal("INVALID_CHAPTER_ID"),
+    message: z.literal("The chapter id could not be found"),
+  }),
+
+  z.object({
+    code: z.literal("INVALID_REQUEST"),
+    data: z.literal("The request was invalid"),
+  }),
+
+  z.object({
+    code: z.literal("UNKNOWN"),
+    data: z.any(),
+  }),
+]);

src/app/api/chapter/[chapterId]/route.ts

@@ -1,7 +1,8 @@
-import { NextResponse } from "next/server";
 import { withSessionAndRole } from "@server/decorator";
 import { prisma } from "@server/db/client";
 import { driveV3 } from "@server/service";
+import { NextResponse } from "next/server";
+import { DeleteChapterResponse } from "./route.schema";
 
 export const DELETE = withSessionAndRole(["ADMIN"], async ({ params }) => {
   // TODO
@@ -15,11 +16,21 @@ export const DELETE = withSessionAndRole(["ADMIN"], async ({ params }) => {
     where: {
       id: chapterId,
     },
+    include: {
+      students: true,
+      seniors: true,
+    },
   });
 
   if (chapter == null) {
     // If no ID is found, chapter has been deleted by another admin.
-    return NextResponse.json("ok");
+    return NextResponse.json(
+      DeleteChapterResponse.parse({
+        code: "CHAPTER_NOT_FOUND",
+        message: "Chapter not found",
+      }),
+      { status: 404 }
+    );
   }
 
   await Promise.allSettled(
@@ -31,5 +42,40 @@ export const DELETE = withSessionAndRole(["ADMIN"], async ({ params }) => {
     )
   );
 
-  return NextResponse.json("ok");
+  await prisma.chapterRequest.delete({
+    where: {
+      id: chapter.chapterRequestId,
+    },
+  });
+
+  await prisma.userRequest.deleteMany({
+    where: {
+      chapterId: chapterId,
+    },
+  });
+
+  chapter.students.forEach(async (student) => {
+    await prisma.user.update({
+      where: {
+        id: student.id,
+      },
+      data: {
+        ChapterID: null,
+      },
+    });
+  });
+
+  await prisma.chapter.delete({
+    where: {
+      id: chapterId,
+    },
+  });
+
+  return NextResponse.json(
+    DeleteChapterResponse.parse({
+      code: "SUCCESS",
+      message: "The chapter was successfully deleted",
+    }),
+    { status: 200 }
+  );
 });

src/app/api/handle-chapter-request/route.ts

@@ -59,6 +59,7 @@ export const POST = withSession(async ({ req }) => {
       data: {
         chapterName: chapterRequest.university,
         location: chapterRequest.universityAddress,
+        chapterRequestId: chapterRequest.id,
       },
     });
 

src/components/AdminHomePage.tsx

@@ -6,6 +6,7 @@ import { faTrashCan } from "@fortawesome/free-solid-svg-icons";
 import { TileEdit } from "./TileGrid/TileEdit";
 import { InfoTile } from "./TileGrid";
 import { fullName } from "@utils";
+import { DeleteChapter } from "@api/chapter/[chapterId]/route.client";
 import SearchableContainer from "./SearchableContainer";
 
 type ChapterWithUser = Prisma.ChapterGetPayload<{
@@ -32,7 +33,9 @@ const AdminHomePage = ({ chapters }: AdminHomePageProps) => {
         options.push({
           name: "Remove Chapter",
           onClick: async () => {
-            return;
+            const response = await DeleteChapter(chapter.id);
+            window.location.reload();
+            return response;
           },
           color: "#ef6767",
           icon: <FontAwesomeIcon icon={faTrashCan} />,