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 root = path.resolve(import.meta.dirname, "../../..");
const temporary = fs.mkdtempSync(path.join(os.tmpdir(), "io-format-capability-matrix-unit-"));
const sourcePath = path.join(root, "web/protocol/io-format-capability-matrix.ts");
const transpiled = ts.transpileModule(fs.readFileSync(sourcePath, "utf8"), {
  compilerOptions: { module: ts.ModuleKind.ES2022, target: ts.ScriptTarget.ES2022 },
  fileName: sourcePath,
  reportDiagnostics: true,
});
assert.deepEqual(transpiled.diagnostics, []);
fs.writeFileSync(path.join(temporary, "io-format-capability-matrix.mjs"), transpiled.outputText);
const matrix = await import(pathToFileURL(path.join(temporary, "io-format-capability-matrix.mjs")));
const manifest = JSON.parse(fs.readFileSync(path.join(root, "tests/golden/M12-05B/manifest.json"), "utf8"));
const source = JSON.parse(fs.readFileSync(path.join(root, "tests/golden/M12-05B/capability-matrix.json"), "utf8"));
const sha256 = (file) => crypto.createHash("sha256").update(fs.readFileSync(path.join(root, file))).digest("hex");

test("M12-05B binds the capability matrix and runtime inventory artifacts", () => {
  assert.equal(manifest.task, "M12-05B");
  assert.equal(manifest.parentTask, "M12-05A");
  assert.equal(manifest.nextTask, "M12-05C");
  for (const artifact of Object.values(manifest.artifacts)) assert.equal(sha256(artifact.path), artifact.sha256, artifact.path);
});

test("M12-05B accepts the seven-format matrix and keeps the bounded GLB export route explicit", () => {
  const parsed = matrix.parseIOFormatCapabilityMatrix(source);
  assert.deepEqual(parsed.formats.map((entry) => entry.format), ["GLTF", "GLB", "OBJ", "STL", "PLY", "USD", "ALEMBIC"]);
  assert.equal(parsed.formats.find((entry) => entry.format === "GLB").operations.EXPORT.local.status, "READY");
  assert.equal(parsed.formats.find((entry) => entry.format === "GLB").operations.EXPORT.local.execution, "LOCAL");
  assert.equal(parsed.formats.find((entry) => entry.format === "GLB").operations.IMPORT.local.status, "BLOCKED");
  assert.ok(parsed.formats.filter((entry) => entry.operations.IMPORT.local.status === "BLOCKED").length >= 6);
});

test("M12-05B rejects duplicate formats, ready routes without a real executor, and unverified ready features", () => {
  assert.throws(() => matrix.parseIOFormatCapabilityMatrix({ ...source, formats: [...source.formats.slice(0, 6), source.formats[0]] }), { code: "ASSET_MANIFEST_INVALID" });
  const badRoute = structuredClone(source);
  badRoute.formats.find((entry) => entry.format === "OBJ").operations.IMPORT.local = { status: "READY", execution: "LOCAL", code: null };
  assert.throws(() => matrix.parseIOFormatCapabilityMatrix(badRoute), { code: "ASSET_MANIFEST_INVALID" });
  const badFeature = structuredClone(source);
  badFeature.formats.find((entry) => entry.format === "GLB").operations.EXPORT.geometry.status = "UNVERIFIED";
  assert.throws(() => matrix.parseIOFormatCapabilityMatrix(badFeature), { code: "ASSET_MANIFEST_INVALID" });
  const badCode = structuredClone(source);
  badCode.formats.find((entry) => entry.format === "PLY").operations.EXPORT.local.code = null;
  assert.throws(() => matrix.parseIOFormatCapabilityMatrix(badCode), { code: "IO_FORMAT_UNSUPPORTED" });
});

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