From 468a769a8121e8b1e525618e701457b2db0fbf56 Mon Sep 17 00:00:00 2001
From: Pelle Wessman <pelle@kodfabrik.se>
Date: Mon, 2 Sep 2024 15:17:00 +0200
Subject: [PATCH] Companion change to fastify PR

See https://github.com/fastify/fastify/pull/5648
---
 package.json          |  2 +-
 types/index.d.ts      | 18 ++++++++++--------
 types/index.test-d.ts |  4 +++-
 3 files changed, 14 insertions(+), 10 deletions(-)

diff --git a/package.json b/package.json
index 8b98a99..8e360e1 100644
--- a/package.json
+++ b/package.json
@@ -42,7 +42,7 @@
     "@types/node": "^22.0.0",
     "concat-stream": "^2.0.0",
     "eslint": "^9.9.0",
-    "fastify": "^5.0.0-alpha.3",
+    "fastify": "voxpelli/fastify#prototype-improved-register",
     "neostandard": "^0.11.3",
     "pino": "^9.1.0",
     "proxyquire": "^2.1.3",
diff --git a/types/index.d.ts b/types/index.d.ts
index 1af2a6b..00cf453 100644
--- a/types/index.d.ts
+++ b/types/index.d.ts
@@ -2,17 +2,19 @@
 //                 Leo <https://github.com/leomelzer>
 /// <reference types="node" />
 
-import { FastifyPluginAsync, FastifyReply, FastifyRequest, RouteOptions } from 'fastify'
+import { FastifyPluginAsync, FastifyReply, FastifyReplyMixin, FastifyRequest, RouteOptions } from 'fastify'
 import { Stats } from 'fs'
 
 declare module 'fastify' {
-  interface FastifyReply {
-    sendFile(filename: string, rootPath?: string): FastifyReply;
-    sendFile(filename: string, options?: fastifyStatic.SendOptions): FastifyReply;
-    sendFile(filename: string, rootPath?: string, options?: fastifyStatic.SendOptions): FastifyReply;
-    download(filepath: string, options?: fastifyStatic.SendOptions): FastifyReply;
-    download(filepath: string, filename?: string): FastifyReply;
-    download(filepath: string, filename?: string, options?: fastifyStatic.SendOptions): FastifyReply;
+  interface FastifyReplyMixins {
+    fastifyStatic: FastifyReplyMixin<'fastifyStatic', {
+      sendFile<T extends FastifyReply>(this: T, filename: string, rootPath?: string): T,
+      sendFile<T extends FastifyReply>(this: T, filename: string, options?: fastifyStatic.SendOptions): T,
+      sendFile<T extends FastifyReply>(this: T, filename: string, rootPath?: string, options?: fastifyStatic.SendOptions): T,
+      download<T extends FastifyReply>(this: T, filepath: string, options?: fastifyStatic.SendOptions): T,
+      download<T extends FastifyReply>(this: T, filepath: string, filename?: string): T,
+      download<T extends FastifyReply>(this: T, filepath: string, filename?: string, options?: fastifyStatic.SendOptions): T,
+    }>
   }
 }
 
diff --git a/types/index.test-d.ts b/types/index.test-d.ts
index 75f21be..d8496cb 100644
--- a/types/index.test-d.ts
+++ b/types/index.test-d.ts
@@ -121,7 +121,9 @@ appWithImplicitHttp
   .register(fastifyStatic, options)
   .after(() => {
     appWithImplicitHttp.get('/', (request, reply) => {
-      reply.sendFile('some-file-name')
+      if (reply.hasMixin('fastifyStatic')) {
+        reply.sendFile('some-file-name').sendFile('some-file-name')
+      }
     })
   })