/**
 * Execution Flywheel PoC (Gen 2 - Production Tooling)
 *
 * This script proves the physical constraints of a 3-step feedback loop
 * (Analyst -> Gatekeeper -> Reset) using actual file I/O to pass
 * state between agents instead of purely in-memory objects.
 */

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

const currentDir = dirname(fromFileUrl(import.meta.url));
const STATE_FILE = join(currentDir, "flywheel_state.json");

async function writeState(state: any) {
  await Deno.writeTextFile(STATE_FILE, JSON.stringify(state, null, 2));
}

async function readState(): Promise<any> {
  const content = await Deno.readTextFile(STATE_FILE);
  return JSON.parse(content);
}

async function runFlywheel() {
  console.log("Starting Execution Flywheel (Gen 2 - File I/O)\n");

  // Initial State
  await writeState({ constraintLevel: "low", iteration: 0, status: "INIT" });
  console.log(`[Flywheel] Initialized state file: ${STATE_FILE}`);

  for (let i = 1; i <= 3; i++) {
    console.log(`\n=== Iteration ${i} ===`);

    // Step 1: Analyst reads telemetry (simulated) and writes new protocol to disk
    console.log("[Analyst] Reading state from disk...");
    const analystState = await readState();

    console.log("[Analyst] Updating protocol constraints...");
    const newConstraintLevel = i === 1 ? "medium" : i === 2 ? "high" : "strict";
    analystState.constraintLevel = newConstraintLevel;
    analystState.iteration = i;
    analystState.status = "ANALYST_UPDATED";

    await writeState(analystState);
    console.log(`[Analyst] State written to disk with constraint: ${newConstraintLevel}`);

    // Step 2: Gatekeeper reads constraints from disk
    console.log("[Gatekeeper] Reading updated constraints from disk...");
    const gatekeeperState = await readState();

    console.log(`[Gatekeeper] Enforcing constraint level: ${gatekeeperState.constraintLevel}`);
    gatekeeperState.status = "GATEKEEPER_APPROVED";
    await writeState(gatekeeperState);

    // Step 3: Cycle executes
    console.log("[Coder] Generating code under physical disk constraints...");
    console.log("Cycle complete.");
  }

  console.log("\n[Flywheel] Cleaning up state file...");
  await Deno.remove(STATE_FILE);

  console.log("Gen 2 Flywheel execution completed successfully.");
}

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