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src/app/groups/[groupId]/expenses/page.tsx

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+import { Badge } from '@/components/ui/badge'
+import { Button } from '@/components/ui/button'
+import {
+  Card,
+  CardContent,
+  CardDescription,
+  CardHeader,
+  CardTitle,
+} from '@/components/ui/card'
+import {
+  Table,
+  TableBody,
+  TableCell,
+  TableHead,
+  TableHeader,
+  TableRow,
+} from '@/components/ui/table'
+import { getGroup, getGroupExpenses } from '@/lib/api'
+import { ChevronRight, Plus } from 'lucide-react'
+import Link from 'next/link'
+import { notFound } from 'next/navigation'
+
+export default async function GroupExpensesPage({
+  params: { groupId },
+}: {
+  params: { groupId: string }
+}) {
+  const group = await getGroup(groupId)
+  if (!group) notFound()
+
+  const expenses = await getGroupExpenses(groupId)
+
+  return (
+    <Card className="mb-4">
+      <div className="flex flex-1">
+        <CardHeader className="flex-1">
+          <CardTitle>Expenses</CardTitle>
+          <CardDescription>
+            Here are the expenses that you created for your group.
+          </CardDescription>
+        </CardHeader>
+        <CardHeader>
+          <Button asChild size="icon">
+            <Link href={`/groups/${groupId}/expenses/create`}>
+              <Plus />
+            </Link>
+          </Button>
+        </CardHeader>
+      </div>
+
+      <CardContent className="p-0">
+        {expenses.length > 0 ? (
+          <Table>
+            <TableHeader>
+              <TableRow>
+                <TableHead>Title</TableHead>
+                <TableHead>Paid by</TableHead>
+                <TableHead>Paid for</TableHead>
+                <TableHead className="text-right">Amount</TableHead>
+                <TableHead className="w-0"></TableHead>
+              </TableRow>
+            </TableHeader>
+            <TableBody>
+              {expenses.map((expense) => (
+                <TableRow key={expense.id}>
+                  <TableCell>{expense.title}</TableCell>
+                  <TableCell>
+                    <Badge variant="secondary">
+                      {
+                        group.participants.find(
+                          (p) => p.id === expense.paidById,
+                        )?.name
+                      }
+                    </Badge>
+                  </TableCell>
+                  <TableCell className="flex flex-wrap gap-1">
+                    {expense.paidFor.map((paidFor, index) => (
+                      <Badge variant="secondary" key={index}>
+                        {
+                          group.participants.find(
+                            (p) => p.id === paidFor.participantId,
+                          )?.name
+                        }
+                      </Badge>
+                    ))}
+                  </TableCell>
+                  <TableCell className="text-right tabular-nums whitespace-nowrap">
+                    {group.currency} {expense.amount.toFixed(2)}
+                  </TableCell>
+                  <TableCell>
+                    <Button
+                      size="icon"
+                      variant="link"
+                      className="-my-2"
+                      asChild
+                    >
+                      <Link
+                        href={`/groups/${groupId}/expenses/${expense.id}/edit`}
+                      >
+                        <ChevronRight className="w-4 h-4" />
+                      </Link>
+                    </Button>
+                  </TableCell>
+                </TableRow>
+              ))}
+            </TableBody>
+          </Table>
+        ) : (
+          <div className="p-6">Your group doesn’t have any expense yet.</div>
+        )}
+      </CardContent>
+    </Card>
+  )
+}