implement PUT /api/v1/media/:id

Adds support for setting image descriptions for accessibility reasons

src/controllers/api/media.ts

@@ -5,6 +5,7 @@ import { fileSchema } from '@/schema.ts';
 import { parseBody } from '@/utils/api.ts';
 import { renderAttachment } from '@/views/mastodon/attachments.ts';
 import { uploadFile } from '@/utils/upload.ts';
+import { setMediaDescription } from '@/db/unattached-media.ts';
 
 const mediaBodySchema = z.object({
   file: fileSchema,
@@ -13,6 +14,10 @@ const mediaBodySchema = z.object({
   focus: z.string().optional(),
 });
 
+const mediaDescriptionUpdateSchema = z.object({
+  description: z.string(),
+});
+
 const mediaController: AppController = async (c) => {
   const pubkey = await c.get('signer')?.getPublicKey()!;
   const result = mediaBodySchema.safeParse(await parseBody(c.req.raw));
@@ -32,4 +37,25 @@ const mediaController: AppController = async (c) => {
   }
 };
 
-export { mediaController };
+const updateMediaDescriptionController: AppController = async (c) => {
+  console.log('in media description update controller');
+  const result = mediaDescriptionUpdateSchema.safeParse(await parseBody(c.req.raw));
+  console.log(result);
+  if (!result.success) {
+    return c.json({ error: 'Bad request.', schema: result.error }, 422);
+  }
+  try {
+    const { description } = result.data;
+    console.log(description);
+    if (!await setMediaDescription(c.req.param('id'), description)) {
+      return c.json({ error: 'File with specified ID not found.' }, 404);
+    }
+  } catch (e) {
+    console.error(e);
+    return c.json({ error: 'Failed to set media description.' }, 500);
+  }
+
+  return c.json({ message: 'ok' }, 200);
+};
+
+export { mediaController, updateMediaDescriptionController };