#!/usr/bin/env node
import crypto from "node:crypto";
import fs from "node:fs";
import os from "node:os";
import path from "node:path";
import { execFileSync } from "node:child_process";
import { createRequire } from "node:module";
import { pathToFileURL } from "node:url";

const root = "/home/mes123456/FreeCADWasmDev/working/FreeCAD";
const build = path.resolve(process.argv[2] ?? path.join(root, "freecad-source/build-web/techdraw-native-full-pthread/bin"));
const tier = process.argv[3] ?? "tier-1-readonly";
const expectedCount = tier === "tier-2-pure" ? 66 : 101;
if (!new Set(["tier-1-readonly", "tier-2-pure"]).has(tier)) throw new Error(`unsupported TechDraw tier: ${tier}`);
const manifestPath = path.join(root, "docs/p6/python-api-manifest.json");
const sourceFacadePath = path.join(root, "web/src/techdraw-python-family-facade.ts");
const out = fs.mkdtempSync(path.join(os.tmpdir(), "freecad-p6-techdraw-family-"));
execFileSync(path.join(root, "web/node_modules/.bin/tsc"), ["--target", "ES2022", "--module", "ESNext", "--moduleResolution", "Bundler", "--strict", "--skipLibCheck", "--outDir", out, "--declaration", "false", "--noEmit", "false", "web/src/facade-envelope.ts", "web/src/techdraw-python-family-facade.ts"], { cwd: root, stdio: "inherit" });
const facadePath = path.join(out, "techdraw-python-family-facade.js");
const envelopePath = path.join(out, "facade-envelope.js");

const hash = (value) => crypto.createHash("sha256").update(JSON.stringify(value)).digest("hex");
const fileHash = (file) => crypto.createHash("sha256").update(fs.readFileSync(file)).digest("hex");
const manifest = JSON.parse(fs.readFileSync(manifestPath, "utf8"));
const records = manifest.records
  .filter((row) => row.module === "TechDraw" && row.tier === tier)
  .map((row) => ({
    apiId: row.id,
    name: row.name,
    family: row.family,
    kind: row.kind,
    sourcePath: row.evidence?.path,
    disposition: row.disposition,
  }));
if (records.length !== expectedCount) throw new Error(`expected ${expectedCount} TechDraw ${tier} records, got ${records.length}`);

const facade = await import(pathToFileURL(facadePath));
const envelope = await import(pathToFileURL(envelopePath));
globalThis.__dirname = `${build}${path.sep}`;
globalThis.require = createRequire(import.meta.url);
const workerJs = path.join(build, "FreeCADWebTechDrawRuntimeProbe.worker.js");
const workerCjs = path.join(build, "FreeCADWebTechDrawRuntimeProbe.worker.cjs");
if (!fs.existsSync(workerCjs) && fs.existsSync(workerJs)) fs.copyFileSync(workerJs, workerCjs);
const loader = await import(pathToFileURL(path.join(build, "FreeCADWebTechDrawRuntimeProbe.js")));
const kernel = await loader.default({ wasmBinary: fs.readFileSync(path.join(build, "FreeCADWebTechDrawRuntimeProbe.wasm")), locateFile: file => file.endsWith(".worker.js") && fs.existsSync(workerCjs) ? workerCjs : path.join(build, file), print: () => {}, printErr: () => {} });
const queue = new envelope.FacadeSerialQueue();
const events = ["native-ready"];
const dispatch = (request, source = kernel) => facade.dispatchTechDrawPythonFamily(queue, request, source);

const successRequest = facade.createTechDrawPythonFamilyRequest("techdraw-family-gate-success", records, tier);
const success = await dispatch(successRequest);
const repeated = await dispatch(facade.createTechDrawPythonFamilyRequest("techdraw-family-gate-replay", records, tier));
const crossRecords = [{ ...records[0], apiId: "py:BIM:class:Camera" }];
const cross = await dispatch(facade.createTechDrawPythonFamilyRequest("techdraw-family-gate-cross-module", crossRecords, tier));
const malformedTier = "tier-unsupported";
const malformedRequest = { ...successRequest, requestId: "techdraw-family-gate-invalid-tier", payload: { ...successRequest.payload, tier: malformedTier } };
const malformed = await dispatch(malformedRequest);
const cancelRequest = facade.createTechDrawPythonFamilyRequest("techdraw-family-cancel-1", records, tier);
const cancelledPromise = dispatch(cancelRequest, new Promise((resolve) => setTimeout(() => resolve(kernel), 25)));
queue.cancel(envelope.createCancel("techdraw-family-gate-cancel", cancelRequest.requestId));
const cancelled = await cancelledPromise;

if (success.kind !== "result") throw new Error(`TechDraw family dispatch failed: ${JSON.stringify(success)}`);
const result = success.result;
if (result.module !== "TechDraw" || result.tier !== tier || result.count !== records.length || result.records.length !== records.length || result.resourcesReleased !== true) throw new Error("TechDraw family result is incomplete");
const terminal = new Set(["exposed", "restricted", "nonportable", "not_implemented"]);
if (result.records.some((record) => !terminal.has(record.status) || record.native !== true || record.resourcesReleased !== true || !record.sourceEntry || !record.sourceRevision || !record.parameterSchema || !record.returnSchema)) throw new Error("TechDraw family result contains an invalid terminal record");
if (JSON.stringify(result) !== JSON.stringify(repeated.result)) throw new Error("TechDraw family replay changed the native result");
if (cross.kind !== "result" || cross.result.records?.[0]?.status !== "not_implemented" || cross.result.records?.[0]?.code !== "unmatched_source_record") throw new Error("TechDraw cross-module boundary failed");
if (malformed.kind !== "error" || malformed.error.code !== "invalid_request") throw new Error("TechDraw invalid tier was not rejected");
if (cancelled.kind !== "error" || cancelled.error.code !== "cancelled") throw new Error("TechDraw cancellation was not reported");

const dispositionCounts = Object.fromEntries([...terminal].map((status) => [status, result.records.filter((record) => record.status === status).length]));
const byId = new Map(result.records.map((record) => [record.apiId, record]));
for (const row of manifest.records) {
  if (row.module !== "TechDraw" || row.tier !== tier) continue;
  const native = byId.get(row.id);
  if (!native) throw new Error(`native result missing ${row.id}`);
  row.disposition = native.status;
  row.dispositionEvidence = [`docs/p6/techdraw-${tier === "tier-2-pure" ? "tier2-pure" : "tier1-readonly"}-family-runtime.json`];
  row.dispositionReason = native.status === "restricted"
    ? native.message
    : native.status === "not_implemented"
      ? native.message
      : "native TechDraw Python class/symbol was resolved by the FreeCAD Web runtime";
}
fs.writeFileSync(manifestPath, `${JSON.stringify(manifest, null, 2)}\n`);

const report = {
  schema: `freecad-web-p6-techdraw-${tier === "tier-2-pure" ? "tier2-pure" : "tier1-readonly"}-family-runtime/v1`,
  taskId: tier === "tier-2-pure" ? "FW-P6-FPA-F2-TECHDRAW" : "FW-P6-FPA-F1-TECHDRAW",
  module: "TechDraw",
  tier,
  status: "pass_with_boundaries",
  sourceRevision: result.records[0]?.sourceRevision,
  route: {
    worker: "web/src/techdraw-python.worker.ts",
    facade: "web/src/techdraw-python-family-facade.ts",
    command: facade.TECHDRAW_PYTHON_FAMILY_COMMAND,
    native: "freecad-source/src/WebAssembly/FreeCADCoreProbe/TechDrawRuntimeProbe.cpp:fc_web_dispatch_json",
  },
  input: { cmd: facade.TECHDRAW_PYTHON_FAMILY_COMMAND, args: { tier, records } },
  inputSha256: hash({ cmd: facade.TECHDRAW_PYTHON_FAMILY_COMMAND, args: { tier, records } }),
  result,
  resultSha256: hash(result),
  replay: { equal: true, resultSha256: hash(repeated.result) },
  crossModuleBoundary: { result: cross, resultSha256: hash(cross) },
  malformedRequest: { result: malformed, resultSha256: hash(malformed) },
  cancellation: { result: cancelled, resultSha256: hash(cancelled) },
  dispositionCounts,
  records: result.records.map((record) => ({
    apiId: record.apiId,
    name: record.name,
    family: record.family,
    status: record.status,
    code: record.code,
    parameterSchema: record.parameterSchema,
    returnSchema: record.returnSchema,
    replay: record.replay,
    sourceEntry: record.sourceEntry,
    sourceRevision: record.sourceRevision,
    evidenceSha256: hash(record),
  })),
  resources: { resourcesReleased: true, documentMutation: false },
  artifacts: {
    wasm: { path: path.relative(root, path.join(build, "FreeCADWebTechDrawRuntimeProbe.wasm")), sha256: fileHash(path.join(build, "FreeCADWebTechDrawRuntimeProbe.wasm")) },
    loader: { path: path.relative(root, path.join(build, "FreeCADWebTechDrawRuntimeProbe.js")), sha256: fileHash(path.join(build, "FreeCADWebTechDrawRuntimeProbe.js")) },
  },
  events,
  boundaries: [
    "TechDraw view-resource and TechDrawTools APIs remain restricted because FreeCADGui is unavailable in the headless Web runtime.",
    "Method records remain not_implemented until a method-specific native fixture supplies typed arguments and return replay; source-declared schemas are retained.",
    "All statuses, schemas and hashes derive from compiled FreeCAD through fc_web_dispatch_json; no JavaScript API result is substituted.",
  ],
};
const evidenceStem = tier === "tier-2-pure" ? "techdraw-tier2-pure-family" : "techdraw-tier1-readonly-family";
fs.writeFileSync(path.join(root, `docs/p6/${evidenceStem}-runtime.json`), `${JSON.stringify(report, null, 2)}\n`);
fs.writeFileSync(path.join(root, `docs/freecad-p6-${evidenceStem}.log`), `${JSON.stringify({ status: report.status, count: records.length, dispositionCounts, resultSha256: report.resultSha256 })}\n`);
console.log(JSON.stringify({ status: report.status, count: records.length, dispositionCounts, resultSha256: report.resultSha256 }));
// The TechDraw probe uses pthread-enabled Emscripten libraries; terminate
// after the deterministic evidence has been flushed so worker handles do not
// keep a successful gate alive.
process.exit(0);