import { createHash } from "node:crypto";
import { existsSync, readFileSync } from "node:fs";
import { resolve } from "node:path";

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

import { getEvidenceAsset } from "../../../src/features/tech-log/adapters/static/evidence-assets.ts";

const publicDirectory = resolve(process.cwd(), "public");

const approvedSvgAssets = [
  {
    relativePath: "favicon.svg",
    sha256: "e6d2e59b7b5bbb0342e0fb496dfc262decbfe4426bbb7b047aec8d467d1dc6f7",
  },
  {
    relativePath: "media/fetch-strategy-boundary.svg",
    sha256: "b07926823ed77fc200f962a1f64a440e130cefa6bed31144b611612af9b02606",
  },
] as const;

function sha256(filePath: string) {
  return createHash("sha256").update(readFileSync(filePath)).digest("hex");
}

describe("TechLog migration baseline", () => {
  it("preserves each approved SVG asset byte-for-byte", () => {
    for (const asset of approvedSvgAssets) {
      const assetPath = resolve(publicDirectory, asset.relativePath);

      expect(existsSync(assetPath), asset.relativePath).toBe(true);
      expect(sha256(assetPath), asset.relativePath).toBe(asset.sha256);
    }
  });

  it("resolves the fetch strategy evidence to its published asset contract", () => {
    expect(getEvidenceAsset("fetch-strategy-boundary")).toEqual({
      src: "/media/fetch-strategy-boundary.svg",
      width: 1080,
      height: 420,
      triggerLabel: "Fetch Join과 Batch Fetch 비교 다이어그램 크게 보기",
      dialogLabel: "Fetch Join과 Batch Fetch의 페이징 경계 확대",
    });

    const evidencePath = resolve(
      publicDirectory,
      getEvidenceAsset("fetch-strategy-boundary").src.slice(1),
    );
    expect(existsSync(evidencePath)).toBe(true);
    expect(sha256(evidencePath)).toBe(
      "b07926823ed77fc200f962a1f64a440e130cefa6bed31144b611612af9b02606",
    );
    expect(() => getEvidenceAsset("unknown")).toThrow(
      "Unknown local evidence asset: unknown",
    );
  });
});