#!/usr/bin/env python3
"""
Environment verification script for Hermes snippet lane.
Measures and records actual system state as JSON.
"""
import os
import sys
import json
import subprocess
from datetime import datetime, timezone

def measure_environment():
    """Measure actual environment state."""
    results = {
        "timestamp_utc": datetime.now(timezone.utc).isoformat(),
        "python_version": sys.version,
        "python_path": sys.executable,
        "working_directory": os.getcwd(),
        "directories": {},
        "environment_vars": {},
        "check_result": "unknown"
    }
    
    # Check required directories
    dirs_to_check = [
        "/root/.hermes/profiles/spark",
        "/root/.hermes/wizard-outputs",
        "/root/troupe-standup",
        "/root/troupe-standup/wizard-work/spark"
    ]
    
    all_dirs_exist = True
    for dir_path in dirs_to_check:
        exists = os.path.isdir(dir_path)
        results["directories"][dir_path] = {"exists": exists}
        if not exists:
            all_dirs_exist = False
    
    # Check key environment variables
    env_vars_to_check = ["FORGE_TOKEN", "PATH"]
    for var in env_vars_to_check:
        results["environment_vars"][var] = var in os.environ
    
    # Check git availability
    try:
        git_result = subprocess.run(["git", "--version"], capture_output=True, text=True)
        results["git_available"] = git_result.returncode == 0
        results["git_version"] = git_result.stdout.strip() if git_result.returncode == 0 else None
    except Exception:
        results["git_available"] = False
        results["git_version"] = None
    
    # Check troupe-standup git repo
    results["troupe_is_git_repo"] = os.path.isdir("/root/troupe-standup/.git")
    
    results["check_result"] = "PASS" if all_dirs_exist and results.get("git_available", False) else "FAIL"
    
    return results

if __name__ == "__main__":
    results = measure_environment()
    
    # Write to file
    output_path = "/root/.hermes/wizard-outputs/spark/environment_check_result.json"
    with open(output_path, "w") as f:
        json.dump(results, f, indent=2)
    
    print(json.dumps(results, indent=2))
    
    # Exit 0 on PASS, 1 on FAIL
    sys.exit(0 if results["check_result"] == "PASS" else 1)