From b27d4219f90c2cb5328e8508737625bc87131220 Mon Sep 17 00:00:00 2001
From: Jesse Wierzbinski <contact@cpluspatch.com>
Date: Sun, 26 Nov 2023 15:01:07 -1000
Subject: [PATCH] Add favourites endpoint

---
 README.md                             |  2 +-
 server/api/api/v1/favourites/index.ts | 80 +++++++++++++++++++++++++++
 2 files changed, 81 insertions(+), 1 deletion(-)
 create mode 100644 server/api/api/v1/favourites/index.ts

diff --git a/README.md b/README.md
index 898884f8..ea144cab 100644
--- a/README.md
+++ b/README.md
@@ -162,12 +162,12 @@ Working endpoints are:
 Tests needed but completed:
 
 - `/api/v1/media/:id`
+- `/api/v1/favourites`
 
 Endpoints left:
 
 - `/api/v1/reports`
 - `/api/v1/accounts/:id/lists`
-- `/api/v1/favourites`
 - `/api/v1/accounts/:id/following`
 - `/api/v1/follow_requests`
 - `/api/v1/follow_requests/:account_id/authorize`
diff --git a/server/api/api/v1/favourites/index.ts b/server/api/api/v1/favourites/index.ts
new file mode 100644
index 00000000..55e0a672
--- /dev/null
+++ b/server/api/api/v1/favourites/index.ts
@@ -0,0 +1,80 @@
+import { errorResponse, jsonResponse } from "@response";
+import { getFromRequest } from "~database/entities/User";
+import { applyConfig } from "@api";
+import { client } from "~database/datasource";
+import { parseRequest } from "@request";
+import { statusAndUserRelations, statusToAPI } from "~database/entities/Status";
+
+export const meta = applyConfig({
+	allowedMethods: ["GET"],
+	route: "/api/v1/favourites",
+	ratelimits: {
+		max: 100,
+		duration: 60,
+	},
+	auth: {
+		required: true,
+	},
+});
+
+export default async (req: Request): Promise<Response> => {
+	const { user } = await getFromRequest(req);
+
+	const {
+		limit = 20,
+		max_id,
+		min_id,
+		since_id,
+	} = await parseRequest<{
+		max_id?: string;
+		since_id?: string;
+		min_id?: string;
+		limit?: number;
+	}>(req);
+
+	if (limit < 1 || limit > 40) {
+		return errorResponse("Limit must be between 1 and 40", 400);
+	}
+
+	if (!user) return errorResponse("Unauthorized", 401);
+
+	const objects = await client.status.findMany({
+		where: {
+			id: {
+				lt: max_id ?? undefined,
+				gte: since_id ?? undefined,
+				gt: min_id ?? undefined,
+			},
+			likes: {
+				some: {
+					likerId: user.id,
+				},
+			},
+		},
+		include: statusAndUserRelations,
+		take: limit,
+		orderBy: {
+			id: "desc",
+		},
+	});
+
+	// Constuct HTTP Link header (next and prev)
+	const linkHeader = [];
+	if (objects.length > 0) {
+		const urlWithoutQuery = req.url.split("?")[0];
+		linkHeader.push(
+			`<${urlWithoutQuery}?max_id=${objects.at(-1)?.id}>; rel="next"`,
+			`<${urlWithoutQuery}?min_id=${objects[0].id}>; rel="prev"`
+		);
+	}
+
+	return jsonResponse(
+		await Promise.all(
+			objects.map(async status => statusToAPI(status, user))
+		),
+		200,
+		{
+			Link: linkHeader.join(", "),
+		}
+	);
+};