import { assert, assertEquals } from "https://deno.land/std@0.224.0/testing/asserts.ts";

/**
 * Proof of Concept: Ontology Traceability (Gen 2)
 *
 * Demonstrates extracting JSON-LD semantic requirements from a real markdown file
 * and validating that code implementation connects back to the business ontology.
 */

async function extractJsonLD(filePath: string): Promise<any[]> {
  const content = await Deno.readTextFile(filePath);
  const regex = /```json-ld\n([\s\S]*?)\n```/g;
  const blocks = [];
  let match;
  while ((match = regex.exec(content)) !== null) {
      try {
          blocks.push(JSON.parse(match[1]));
      } catch (e) {
          // ignore invalid json
      }
  }
  return blocks;
}

if (import.meta.main) {
  console.log("Running Ontology Traceability PoC (Gen 2) tests...");

  try {
    const tempFile = await Deno.makeTempFile({ suffix: ".md" });
    await Deno.writeTextFile(tempFile, `
# System Requirements

This document tracks requirements.

\`\`\`json-ld
{
  "@context": "https://schema.org/",
  "@type": "Requirement",
  "identifier": "REQ-AUTH-01",
  "name": "User Passkey Login",
  "implementedBy": ["file:///src/auth/login.ts"]
}
\`\`\`
    `);

    const ontology = await extractJsonLD(tempFile);
    await Deno.remove(tempFile);

    assertEquals(ontology.length, 1);

    const req = ontology[0];
    assertEquals(req.identifier, "REQ-AUTH-01");
    assertEquals(req["@type"], "Requirement");

    // Simulate Gatekeeper verifying traceability
    const isTraceable = req.implementedBy && req.implementedBy.length > 0;
    assert(isTraceable, "Requirement must be linked to an implementation");

    console.log("✅ Ontology Traceability PoC (Gen 2) successful: JSON-LD parsed from real markdown.");
  } catch (err) {
    console.error("❌ Ontology Traceability PoC (Gen 2) failed:", err);
    Deno.exit(1);
  }
}