refactor: 🚚 Organize code into sub-packages, instead of a single large package

packages/api/routes/media/[hash]/[name]/index.ts

@@ -0,0 +1,78 @@
+import { ApiError } from "@versia/kit";
+import { file as bunFile } from "bun";
+import { describeRoute } from "hono-openapi";
+import { resolver, validator } from "hono-openapi/zod";
+import { z } from "zod";
+import { apiRoute, handleZodError } from "@/api";
+
+export default apiRoute((app) =>
+    app.get(
+        "/media/:hash/:name",
+        describeRoute({
+            summary: "Get media file by hash and name",
+            responses: {
+                200: {
+                    description: "Media",
+                    content: {
+                        "*": {
+                            schema: resolver(z.any()),
+                        },
+                    },
+                },
+                404: {
+                    description: "File not found",
+                    content: {
+                        "application/json": {
+                            schema: resolver(ApiError.zodSchema),
+                        },
+                    },
+                },
+            },
+        }),
+        validator(
+            "param",
+            z.object({
+                hash: z.string(),
+                name: z.string(),
+            }),
+            handleZodError,
+        ),
+        validator(
+            "header",
+            z.object({
+                range: z.string().optional().default(""),
+            }),
+            handleZodError,
+        ),
+        async (context) => {
+            const { hash, name } = context.req.valid("param");
+            const { range } = context.req.valid("header");
+
+            // parse `Range` header
+            const [start = 0, end = Number.POSITIVE_INFINITY] = (
+                range
+                    .split("=") // ["Range: bytes", "0-100"]
+                    .at(-1) || ""
+            ) // "0-100"
+                .split("-") // ["0", "100"]
+                .map(Number); // [0, 100]
+
+            // Serve file from filesystem
+            const file = bunFile(`./uploads/${hash}/${name}`);
+
+            const buffer = await file.arrayBuffer();
+
+            if (!(await file.exists())) {
+                throw new ApiError(404, "File not found");
+            }
+
+            // Can't directly copy file into Response because this crashes Bun for now
+            return context.body(buffer, 200, {
+                "Content-Type": file.type || "application/octet-stream",
+                "Content-Length": `${file.size - start}`,
+                "Content-Range": `bytes ${start}-${end}/${file.size}`,
+                // biome-ignore lint/suspicious/noExplicitAny: Hono doesn't type this response so this has a TS error
+            }) as any;
+        },
+    ),
+);