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

import {
	buildBaseUrlMap,
	extractMediaUrl,
	findMatchingUrl,
} from "../../../src/astro/routes/api/import/wordpress/rewrite-url-helpers.js";

/**
 * Regression for bug report: featured_image not rewritten to local R2 after WordPress import.
 *
 * During import, `featured_image` is normalized (media/normalize.ts) and stored in the
 * `ec_*` image column as a JSON-stringified MediaValue:
 *   {"provider":"external","id":"","src":"https://wp-domain/.../hero.jpg"}
 *
 * The rewrite-urls route (rewrite-urls.ts) used to pass that whole JSON string to
 * findMatchingUrl(), which expects a bare URL, so the embedded `src` was never matched and
 * the field kept pointing at WordPress. The fix extracts `.src` via extractMediaUrl() first.
 *
 * Inline content images were unaffected because they go through rewritePortableTextUrls(),
 * which reaches into each block's asset.url before matching.
 */
describe("WordPress import — featured_image rewrite", () => {
	const wpUrl = "https://wp-domain.example/wp-content/uploads/2026/01/hero.jpg";
	const localUrl = "/_emdash/api/media/file/01KRNQM2P18GQD1TKDWEPHC9VG.jpg";
	const urlMap = { [wpUrl]: localUrl };
	const baseMap = buildBaseUrlMap(urlMap);

	// Exactly what the image column holds after import (normalized MediaValue).
	const storedFeaturedImage = JSON.stringify({
		provider: "external",
		id: "",
		src: wpUrl,
	});

	it("extracts the inner src from a stored MediaValue JSON", () => {
		expect(extractMediaUrl(storedFeaturedImage)).toBe(wpUrl);
	});

	it("returns a bare URL string unchanged (legacy rows)", () => {
		expect(extractMediaUrl(wpUrl)).toBe(wpUrl);
	});

	it("leaves a non-MediaValue JSON string untouched", () => {
		expect(extractMediaUrl('{"foo":"bar"}')).toBe('{"foo":"bar"}');
	});

	it("rewrites a stored featured_image MediaValue to the local URL", () => {
		// This mirrors the mediaFields loop: extract, then match.
		const match = findMatchingUrl(extractMediaUrl(storedFeaturedImage), urlMap, baseMap);
		expect(match).toBe(localUrl);
	});

	it("still rewrites a WordPress size-suffixed variant inside a stored MediaValue", () => {
		const variant = JSON.stringify({
			provider: "external",
			id: "",
			src: "https://wp-domain.example/wp-content/uploads/2026/01/hero-1024x695.jpg",
		});
		const match = findMatchingUrl(extractMediaUrl(variant), urlMap, baseMap);
		expect(match).toBe(localUrl);
	});
});