/**
 * Tool Sandbox PoC (Gen 2 - Production Tooling)
 *
 * This script proves that the execution environment can physically handle
 * invoking actual production-grade tooling constraints (tree-sitter CLI
 * and semgrep CLI) natively via system execution rather than Node imports.
 */

import {
  dirname,
  fromFileUrl,
  join,
} from "https://deno.land/std@0.224.0/path/mod.ts";
import { execTool, requireTool } from "./sys_exec.ts";

const currentDir = dirname(fromFileUrl(import.meta.url));
const TEMP_FILE = join(currentDir, "dummy_target.js");

const DUMMY_CODE = `
function vulnerableQuery(userInput) {
  const query = "SELECT * FROM users WHERE name = '" + userInput + "'";
  db.execute(query);
}
`;

async function testTreeSitter() {
  console.log("\n--- Testing Tree-sitter (CLI) ---");
  const hasTreeSitter = await requireTool(
    "tree-sitter",
    "npm install -g tree-sitter-cli",
  );
  if (!hasTreeSitter) return false;

  try {
    await Deno.writeTextFile(TEMP_FILE, DUMMY_CODE);

    // Provide code as a file, use normal tree-sitter parse output
    const { code, stdout, stderr } = await execTool("tree-sitter", [
      "parse",
      TEMP_FILE,
      "-q",
    ]);

    if (code !== 0) {
      console.error("❌ Tree-sitter CLI execution failed:", stderr || stdout);
      return false;
    }

    // We don't have the nice object tree structure, but we can verify it executed successfully
    // We would parse the sexp output from tree-sitter for full ast traversal in a real scenario
    console.log("[Sandbox] Successfully executed native tree-sitter binary!");
    return true;
  } catch (error) {
    console.error("❌ Tree-sitter CLI execution failed:", error);
    return false;
  } finally {
    try {
      await Deno.remove(TEMP_FILE);
    } catch {
      // ignore
    }
  }
}

async function testSemgrep() {
  console.log("\n--- Testing Semgrep (Binary) ---");
  const hasSemgrep = await requireTool(
    "semgrep",
    "pip3 install semgrep --break-system-packages",
  );
  if (!hasSemgrep) return false;

  try {
    // Write out dummy file for semgrep to scan
    await Deno.writeTextFile(TEMP_FILE, DUMMY_CODE);

    // Define a basic semgrep rule directly via CLI flag to detect our dummy issue
    const { code, stdout, stderr } = await execTool("semgrep", [
      "--quiet",
      "--json",
      "--lang",
      "javascript",
      "-e",
      '"$SELECT ... " + $INPUT',
      TEMP_FILE,
    ]);

    if (code !== 0 && code !== 1) { // 1 means findings found, 0 means no findings. Other codes are errors.
      console.error("❌ Semgrep execution returned error code:", code);
      console.error(stderr);
      return false;
    }

    const jsonResult = JSON.parse(stdout);

    console.log("[Sandbox] Successfully executed native semgrep binary!");
    console.log(
      `[Sandbox] Vulnerabilities found: ${jsonResult.results.length}`,
    );
    if (jsonResult.results.length > 0) {
      console.log(
        `[Sandbox] Details: ${jsonResult.results[0].extra.message} (Line ${
          jsonResult.results[0].start.line
        })`,
      );
    }

    return true;
  } catch (error) {
    console.error("❌ Semgrep binary execution failed:", error);
    return false;
  } finally {
    try {
      await Deno.remove(TEMP_FILE);
    } catch {
      // ignore
    }
  }
}

async function runSandbox() {
  console.log("Starting Gen 2 Tool Sandbox (Production Dependencies)\n");

  const tsSuccess = await testTreeSitter();
  const sgSuccess = await testSemgrep();

  // For PoC execution, we don't strictly fail if tools are missing, because
  // the environment might be a basic docker. But we do want to record if it succeeded.
  if (tsSuccess && sgSuccess) {
    console.log(
      "\n✅ Gen 2 Sandbox execution completed successfully. Physical tools verified.",
    );
  } else {
    console.warn(
      "\n⚠️ Gen 2 Sandbox finished with skipped/failed host dependencies. Assuming graceful pass for PoC.",
    );
  }
}

if (import.meta.main) {
  runSandbox().catch(console.error);
}