more tests

nextjs/src/models/local/IModuleItem.ts

@@ -0,0 +1,4 @@
+export interface IModuleItem {
+  name: string;
+  dueAt: string;
+}

nextjs/src/models/local/page/localCoursePage.ts

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+import { IModuleItem } from "../IModuleItem";
+
+export interface LocalCoursePage extends IModuleItem {
+  name: string;
+  text: string;
+  dueAt: string;
+}

nextjs/src/models/local/page/pageMarkdown.ts

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+import { extractLabelValue } from "../assignmnet/utils/markdownUtils";
+import { LocalCoursePage } from "./localCoursePage";
+
+export const pageMarkdown = {
+  toMarkdown: (page: LocalCoursePage) => {
+    const printableDueDate = new Date(page.dueAt)
+      .toISOString()
+      .replace("\u202F", " ");
+    const settingsMarkdown = `Name: ${page.name}\nDueDateForOrdering: ${printableDueDate}\n---\n`;
+    return settingsMarkdown + page.text;
+  },
+
+  parseMarkdown: (pageMarkdown: string) => {
+    const rawSettings = pageMarkdown.split("---")[0];
+    const name = extractLabelValue(rawSettings, "Name");
+    const rawDate = extractLabelValue(rawSettings, "DueDateForOrdering");
+
+    const parsedDate = new Date(rawDate);
+    if (isNaN(parsedDate.getTime())) {
+      throw new Error(`could not parse due date: ${rawDate}`);
+    }
+
+    const text = pageMarkdown.split("---\n")[1];
+
+    const page: LocalCoursePage = {
+      name,
+      dueAt: parsedDate.toISOString(),
+      text,
+    };
+    return page;
+  },
+};

nextjs/src/models/local/tests/markdown/pageMarkdown.test.ts

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+import { describe, it, expect } from "vitest";
+import { LocalCoursePage } from "../../page/localCoursePage";
+import { pageMarkdown } from "../../page/pageMarkdown";
+
+describe("PageMarkdownTests", () => {
+  it("can parse page", () => {
+    const page: LocalCoursePage = {
+      name: "test title",
+      text: "test text content",
+      dueAt: new Date().toISOString(),
+    };
+
+    const pageMarkdownString = pageMarkdown.toMarkdown(page);
+
+    const parsedPage = pageMarkdown.parseMarkdown(pageMarkdownString);
+
+    expect(parsedPage).toEqual(page);
+  });
+});