1 files changed, 20 insertions, 16 deletions
diff --git a/vhosts/blog/nuldoc-src/slide/parse.ts b/vhosts/blog/nuldoc-src/slide/parse.ts
index 5daa6ed0..82510a95 100644
--- a/vhosts/blog/nuldoc-src/slide/parse.ts
+++ b/vhosts/blog/nuldoc-src/slide/parse.ts
@@ -1,28 +1,32 @@
 import { parse as parseToml } from "std/toml/mod.ts";
 import { Config } from "../config.ts";
 import { createNewSlideFromTomlRootObject, Slide } from "./slide.ts";
+import { z } from "zod/mod.ts";
+
+const SlideMetadataSchema = z.object({
+  slide: z.object({
+    uuid: z.string(),
+    title: z.string(),
+    event: z.string(),
+    talkType: z.string(),
+    link: z.string(),
+    tags: z.array(z.string()),
+    revisions: z.array(z.object({
+      date: z.string(),
+      remark: z.string(),
+      isInternal: z.boolean().optional(),
+    })),
+  }),
+});
 
 export async function parseSlideFile(
   filePath: string,
   config: Config,
 ): Promise<Slide> {
   try {
-    // TODO runtime assertion
-    const root = parseToml(await Deno.readTextFile(filePath)) as {
-      slide: {
-        uuid: string;
-        title: string;
-        event: string;
-        talkType: string;
-        link: string;
-        tags: string[];
-        revisions: {
-          date: string;
-          remark: string;
-          isInternal?: boolean;
-        }[];
-      };
-    };
+    const root = SlideMetadataSchema.parse(
+      parseToml(await Deno.readTextFile(filePath)),
+    );
     return createNewSlideFromTomlRootObject(root, filePath, config);
   } catch (e) {
     e.message = `${e.message} in ${filePath}`;