chore(packages/graphql): add script to impersonate student user

packages/graphql/src/scripts/impersonateParticipant.ts

@@ -0,0 +1,45 @@
+import { PrismaClient, UserRole } from '@klicker-uzh/prisma'
+import JWT from 'jsonwebtoken'
+import readline from 'readline'
+
+async function run(username: string) {
+  const prisma = new PrismaClient()
+
+  const participant = await prisma.participant.findUnique({
+    where: {
+      username,
+    },
+  })
+
+  if (!participant) {
+    console.error('User not found')
+    return
+  }
+
+  const jwt = JWT.sign(
+    {
+      sub: participant.id,
+      role: UserRole.PARTICIPANT,
+    },
+    process.env.APP_SECRET as string,
+    {
+      algorithm: 'HS256',
+      expiresIn: '4w',
+    }
+  )
+
+  console.log(jwt)
+}
+
+const readLine = readline.createInterface({
+  input: process.stdin,
+  output: process.stdout,
+})
+
+readLine.question(
+  'Username of participant to impersonate:',
+  async (username: string) => {
+    await run(username)
+    readLine.close()
+  }
+)