From 28902ad0eace265b207fea7f3328eeea8e018c5f Mon Sep 17 00:00:00 2001
From: Sebastien Castiel <sebastien@castiel.me>
Date: Mon, 15 Jan 2024 11:44:49 -0500
Subject: [PATCH] Export group expenses as JSON (Closes #42)

---
 .../[groupId]/expenses/export/json/route.ts   | 39 +++++++++++++++++++
 src/app/groups/[groupId]/expenses/page.tsx    | 11 ++++--
 2 files changed, 47 insertions(+), 3 deletions(-)
 create mode 100644 src/app/groups/[groupId]/expenses/export/json/route.ts

diff --git a/src/app/groups/[groupId]/expenses/export/json/route.ts b/src/app/groups/[groupId]/expenses/export/json/route.ts
new file mode 100644
index 0000000..fe5be65
--- /dev/null
+++ b/src/app/groups/[groupId]/expenses/export/json/route.ts
@@ -0,0 +1,39 @@
+import { getPrisma } from '@/lib/prisma'
+import { NextResponse } from 'next/server'
+
+export async function GET(
+  req: Request,
+  { params: { groupId } }: { params: { groupId: string } },
+) {
+  console.log({ groupId })
+  const prisma = await getPrisma()
+  const group = await prisma.group.findUnique({
+    where: { id: groupId },
+    select: {
+      id: true,
+      name: true,
+      currency: true,
+      expenses: {
+        select: {
+          expenseDate: true,
+          title: true,
+          category: { select: { grouping: true, name: true } },
+          amount: true,
+          paidById: true,
+          paidFor: { select: { participantId: true, shares: true } },
+          isReimbursement: true,
+          splitMode: true,
+        },
+      },
+      participants: { select: { id: true, name: true } },
+    },
+  })
+  if (!group)
+    return NextResponse.json({ error: 'Invalid group ID' }, { status: 404 })
+  return NextResponse.json(group, {
+    headers: {
+      'content-type': 'application/json',
+      'content-disposition': `attachment; filename="${group.name}.json"`,
+    },
+  })
+}
diff --git a/src/app/groups/[groupId]/expenses/page.tsx b/src/app/groups/[groupId]/expenses/page.tsx
index c9b5a8a..bd4f600 100644
--- a/src/app/groups/[groupId]/expenses/page.tsx
+++ b/src/app/groups/[groupId]/expenses/page.tsx
@@ -10,7 +10,7 @@ import {
 } from '@/components/ui/card'
 import { Skeleton } from '@/components/ui/skeleton'
 import { getGroup, getGroupExpenses } from '@/lib/api'
-import { Plus } from 'lucide-react'
+import { Download, DownloadCloud, Plus } from 'lucide-react'
 import { Metadata } from 'next'
 import Link from 'next/link'
 import { notFound } from 'next/navigation'
@@ -38,10 +38,15 @@ export default async function GroupExpensesPage({
               Here are the expenses that you created for your group.
             </CardDescription>
           </CardHeader>
-          <CardHeader className="p-4 sm:p-6">
+          <CardHeader className="p-4 sm:p-6 flex flex-row space-y-0 gap-2">
+            <Button variant="secondary" size="icon" asChild>
+              <Link href={`/groups/${groupId}/expenses/export/json`} target="_blank">
+                <Download className="w-4 h-4" />
+              </Link>
+            </Button>
             <Button asChild size="icon">
               <Link href={`/groups/${groupId}/expenses/create`}>
-                <Plus />
+                <Plus className="w-4 h-4" />
               </Link>
             </Button>
           </CardHeader>