import { describe, it, expect } from "vitest";

import { getSeoMeta } from "../../../src/seo/index.js";

// Lightweight unit tests for the getSeoMeta + buildMediaUrl path.
// These don't touch the DB — they exercise the URL-building logic
// directly via getSeoMeta's ogImage output.

describe("getSeoMeta ogImage URL building", () => {
	const SITE = "https://example.com";

	it("returns absolute URLs as-is (no prefix doubling)", () => {
		const meta = getSeoMeta(
			{ seo: { image: "https://cdn.example.com/x.jpg" }, data: {} },
			{ siteUrl: SITE },
		);
		expect(meta.ogImage).toBe("https://cdn.example.com/x.jpg");
	});

	it("joins root-relative paths with siteUrl without re-prefixing the API path", () => {
		// Regression test: the CMS SEO panel stores seo_image as a
		// root-relative path that already includes /_emdash/api/media/file/.
		// Before the fix this produced "...media/file//_emdash/api/media/file/..."
		const meta = getSeoMeta(
			{ seo: { image: "/_emdash/api/media/file/01KS.svg" }, data: {} },
			{ siteUrl: SITE },
		);
		expect(meta.ogImage).toBe("https://example.com/_emdash/api/media/file/01KS.svg");
		expect(meta.ogImage).not.toContain("//_emdash");
	});

	it("returns root-relative paths as-is when no siteUrl is provided", () => {
		const meta = getSeoMeta({ seo: { image: "/_emdash/api/media/file/01KS.svg" }, data: {} }, {});
		expect(meta.ogImage).toBe("/_emdash/api/media/file/01KS.svg");
	});

	it("builds the full API path from a bare media_id", () => {
		const meta = getSeoMeta({ seo: { image: "01KS" }, data: {} }, { siteUrl: SITE });
		expect(meta.ogImage).toBe("https://example.com/_emdash/api/media/file/01KS");
	});

	it("strips trailing slash from siteUrl before joining a root-relative path", () => {
		const meta = getSeoMeta(
			{ seo: { image: "/_emdash/api/media/file/01KS.svg" }, data: {} },
			{ siteUrl: "https://example.com/" },
		);
		expect(meta.ogImage).toBe("https://example.com/_emdash/api/media/file/01KS.svg");
	});
});