#!/usr/bin/env python3
"""Synthetic fixture. No GPU, network, model calls or existing data access."""
import json
from pathlib import Path
import subprocess
import sys
import time


def main():
    mode, run_id, destination = sys.argv[1:]
    folder = Path(destination)
    print("SYNTHETIC FLOW ACCEPTANCE: not a model benchmark", flush=True)
    if mode == "wait":
        child = subprocess.Popen([sys.executable, "-c", "import time; time.sleep(60)"])
        (folder / "child.pid").write_text(str(child.pid), encoding="utf-8")
        print(f"waiting; controlled_child_pid={child.pid}", flush=True)
        child.wait(timeout=65)
        return 0
    if mode == "failure":
        print("Expected fixture failure", flush=True)
        return 23
    if mode == "invalid-report":
        (folder / "result.json").write_text('{"incomplete":true}', encoding="utf-8")
        return 0
    if mode != "success":
        return 2
    for step in range(1, 4):
        print(f"progress={step}/3", flush=True)
        time.sleep(.2)
    (folder / "result.json").write_text(json.dumps({
        "run_id": run_id, "synthetic": True, "checks_passed": 3,
        "description": "Synthetic flow acceptance only"}), encoding="utf-8")
    return 0


if __name__ == "__main__":
    sys.exit(main())