import assert from "node:assert/strict";
import crypto from "node:crypto";
import fs from "node:fs";
import os from "node:os";
import path from "node:path";
import { pathToFileURL } from "node:url";
import test from "node:test";
import ts from "typescript";

const repoRoot = path.resolve(import.meta.dirname, "../../..");
const temporary = fs.mkdtempSync(path.join(os.tmpdir(), "asset-catalog-negatives-unit-"));
const sources = ["asset-path.ts", "capability-gates.ts", "asset-library-io.ts", "asset-catalog-v2.ts", "asset-catalog-migration.ts"];
for (const sourceName of sources) {
  const sourcePath = path.join(repoRoot, "web/protocol", sourceName);
  const result = ts.transpileModule(fs.readFileSync(sourcePath, "utf8"), {
    compilerOptions: { module: ts.ModuleKind.ES2022, target: ts.ScriptTarget.ES2022 },
    fileName: sourcePath,
    reportDiagnostics: true,
  });
  assert.deepEqual(result.diagnostics, []);
  fs.writeFileSync(path.join(temporary, sourceName.replace(/\.ts$/, ".mjs")), result.outputText.replaceAll(/from "\.\/([a-z0-9-]+)"/g, 'from "./$1.mjs"'));
}
const v2Protocol = await import(pathToFileURL(path.join(temporary, "asset-catalog-v2.mjs")));
const migration = await import(pathToFileURL(path.join(temporary, "asset-catalog-migration.mjs")));
const v1 = JSON.parse(fs.readFileSync(path.join(repoRoot, "tests/golden/M12-01D/catalog-v1.json"), "utf8"));
const v2 = JSON.parse(fs.readFileSync(path.join(repoRoot, "tests/golden/M12-01D/catalog-v2.json"), "utf8"));
const golden = JSON.parse(fs.readFileSync(path.join(repoRoot, "tests/golden/M12-01F/negative-cases.json"), "utf8"));
const manifest = JSON.parse(fs.readFileSync(path.join(repoRoot, "tests/golden/M12-01F/manifest.json"), "utf8"));

test("M12-01F binds every negative input contract", () => {
  assert.equal(manifest.negativeCaseCount, golden.cases.length);
  assert.equal(manifest.nextTask, "M12-01G");
  for (const artifact of Object.values(manifest.artifacts)) {
    const actual = crypto.createHash("sha256").update(fs.readFileSync(path.join(repoRoot, artifact.path))).digest("hex");
    assert.equal(actual, artifact.sha256, `${artifact.path} hash drifted`);
  }
});

async function codeFrom(run) {
  try {
    await run();
    return "NO_ERROR";
  }
  catch (error) {
    return error?.code ?? "UNKNOWN_ERROR";
  }
}

test("M12-01F rejects duplicate identities, cycles, budgets, and unknown fields", async () => {
  const duplicateCatalog = structuredClone(v2);
  duplicateCatalog.catalogs.push(structuredClone(duplicateCatalog.catalogs[0]));
  const duplicateAsset = structuredClone(v2);
  duplicateAsset.assets.push(structuredClone(duplicateAsset.assets[0]));
  const legacyCycle = structuredClone(v1);
  legacyCycle.catalogs[0].parentId = legacyCycle.catalogs[1].id;
  const parentMismatch = structuredClone(v2);
  parentMismatch.catalogs[0].parentPath = "Characters";
  const simpleName = structuredClone(v2);
  simpleName.catalogs[0].simpleName = "\u00e9".repeat(32);
  const tag = structuredClone(v2);
  tag.assets[0].tags = ["\u00e9".repeat(32)];
  tag.assets[0].activeTag = 0;
  const unknownTop = { ...structuredClone(v2), future: true };
  const unknownAsset = structuredClone(v2);
  unknownAsset.assets[0].future = true;
  const unknownLegacyAsset = structuredClone(v1);
  unknownLegacyAsset.assets[0].future = true;

  const cases = [
    ["DUPLICATE_CATALOG_ID", () => v2Protocol.parseAssetCatalogManifestV2(duplicateCatalog)],
    ["DUPLICATE_ASSET_ID", () => v2Protocol.parseAssetCatalogManifestV2(duplicateAsset)],
    ["LEGACY_PARENT_CYCLE", () => migration.migrateAssetCatalogV1ToV2(legacyCycle)],
    ["PARENT_PATH_MISMATCH", () => v2Protocol.parseAssetCatalogManifestV2(parentMismatch)],
    ["OVERLONG_SIMPLE_NAME_UTF8", () => v2Protocol.parseAssetCatalogManifestV2(simpleName)],
    ["OVERLONG_TAG_UTF8", () => v2Protocol.parseAssetCatalogManifestV2(tag)],
    ["V2_UNKNOWN_TOP_LEVEL", () => v2Protocol.parseAssetCatalogManifestV2(unknownTop)],
    ["V2_UNKNOWN_ASSET_FIELD", () => v2Protocol.parseAssetCatalogManifestV2(unknownAsset)],
    ["V1_UNKNOWN_ASSET_FIELD", () => migration.migrateAssetCatalogV1ToV2(unknownLegacyAsset)],
  ];
  const actual = [];
  for (const [id, run] of cases) {
    actual.push({ id, code: await codeFrom(run) });
    assert.deepEqual(await v2Protocol.parseAssetCatalogManifestV2(v2), v2, `${id} poisoned the valid parser path`);
  }
  assert.deepEqual(actual, golden.cases);
  assert.equal(golden.nextTask, "M12-01G");
});

test.after(() => fs.rmSync(temporary, { recursive: true, force: true }));