2 files changed, 87 insertions, 0 deletions
diff --git a/services/blog/nuldoc-src/slide/parse.ts b/services/blog/nuldoc-src/slide/parse.ts
new file mode 100644
index 00000000..c5a89675
--- /dev/null
+++ b/services/blog/nuldoc-src/slide/parse.ts
@@ -0,0 +1,20 @@
+import { parse as parseToml } from "@std/toml";
+import {
+  createNewSlideFromMetadata,
+  Slide,
+  SlideMetadataSchema,
+} from "./slide.ts";
+
+export async function parseSlideFile(filePath: string): Promise<Slide> {
+  try {
+    const root = SlideMetadataSchema.parse(
+      parseToml(await Deno.readTextFile(filePath)),
+    );
+    return createNewSlideFromMetadata(root, filePath);
+  } catch (e) {
+    if (e instanceof Error) {
+      e.message = `${e.message} in ${filePath}`;
+    }
+    throw e;
+  }
+}
diff --git a/services/blog/nuldoc-src/slide/slide.ts b/services/blog/nuldoc-src/slide/slide.ts
new file mode 100644
index 00000000..8fe99eab
--- /dev/null
+++ b/services/blog/nuldoc-src/slide/slide.ts
@@ -0,0 +1,67 @@
+import { SlideError } from "../errors.ts";
+import { Revision, stringToDate } from "../revision.ts";
+import { z } from "zod/mod.ts";
+
+export 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 type SlideMetadata = z.infer<typeof SlideMetadataSchema>;
+
+export type Slide = {
+  sourceFilePath: string;
+  uuid: string;
+  title: string;
+  event: string;
+  talkType: string;
+  slideLink: string;
+  tags: string[];
+  revisions: Revision[];
+};
+
+export function createNewSlideFromMetadata(
+  { slide }: SlideMetadata,
+  sourceFilePath: string,
+): Slide {
+  const revisions = slide.revisions.map(
+    (rev, i) => {
+      const date = rev.date;
+      const remark = rev.remark;
+      const isInternal = rev.isInternal ?? false;
+      return {
+        number: i + 1,
+        date: stringToDate(date),
+        remark,
+        isInternal,
+      };
+    },
+  );
+  if (revisions.length === 0) {
+    throw new SlideError(
+      `[slide.new] 'slide.revisions' field is empty`,
+    );
+  }
+
+  return {
+    sourceFilePath: sourceFilePath,
+    uuid: slide.uuid,
+    title: slide.title,
+    event: slide.event,
+    talkType: slide.talkType,
+    slideLink: slide.link,
+    tags: slide.tags,
+    revisions: revisions,
+  };
+}