import { describe, expect, it } from "vitest";
import { itemDescription, rssItem, toRss } from "../src/rss.js";

// shaped like diigo's export (field layout observed 2026-10-07), made-up values

describe("itemDescription", () => {
	it("packs tags, description, and annotations the way diigo's export does", () => {
		expect(
			itemDescription({
				tags: "ocap,js",
				description: "a note",
				annotations: [
					{ content: "first highlight", stickyNotes: [] },
					{ content: "second", stickyNotes: [{ content: "a sticky\n\nwith lines" }, { content: "another" }] },
				],
			}),
		).toBe(
			"Tags:ocap,js;Description:a note;Annotations and Sticky notes:" +
				"Highlight:first highlight\n" +
				"Highlight:second\nSticky notes:a sticky\n\nwith lines\nSticky notes:another\n",
		);
	});

	it("says no_tag when there are no tags, and leaves empty parts empty", () => {
		expect(itemDescription({ tags: "", description: "", annotations: [] })).toBe(
			"Tags:no_tag;Description:;Annotations and Sticky notes:",
		);
	});
});

describe("rssItem / toRss", () => {
	it("is well-formed even when diigo's text isn't: forbidden characters dropped, ]]> split", () => {
		const xml = rssItem({ title: "bad\u0003char", url: "https://a.example/", tags: "", description: "x]]>y" });
		expect(xml).not.toContain("\u0003");
		expect(xml).toContain("<title><![CDATA[badchar]]></title>");
		expect(xml).toContain("Description:x]]]]><![CDATA[>y;");
	});

	it("keeps the whole title (diigo's export cuts at 255)", () => {
		const title = "t".repeat(300);
		expect(rssItem({ title, url: "u" })).toContain(title);
	});

	it("wraps items in an RSS 2.0 channel, dated by the caller", () => {
		const feed = toRss([{ title: "a", url: "u" }], { title: "my items", pubDate: "Wed, 07 Oct 2026 12:00:00 +0000" });
		expect(feed).toMatch(/^<\?xml version="1.0"\?>\n<rss version="2.0">\n<channel>/);
		expect(feed).toContain("<pubDate>Wed, 07 Oct 2026 12:00:00 +0000</pubDate>");
		expect(feed).toContain("<item><title><![CDATA[a]]></title>");
	});
});