"""Persistent server starter: spawns server with proper detachment on Windows.

Uses subprocess.Popen with DETACHED_PROCESS + CREATE_NEW_PROCESS_GROUP flags
so the child survives parent exit. The child's stdio is redirected to log files.
"""
import os
import sys
import subprocess
import time
import urllib.request

WORKDIR = r"D:\opencode\captcha-solver-api"
LOG_DIR = r"D:\opencode\logs"
PYTHON = r"C:\Users\Administrator\AppData\Local\Programs\Python\Python312\python.exe"
PORT = 8765

# Ensure log dir
os.makedirs(LOG_DIR, exist_ok=True)

log_path = os.path.join(LOG_DIR, "solver.log")
err_path = os.path.join(LOG_DIR, "solver.err")

# Kill existing
subprocess.run(
    ["taskkill", "/F", "/IM", "python.exe", "/FI", f"WindowTitle eq captcha*"],
    capture_output=True
)
time.sleep(1)
# Brute force kill anything on the port
out = subprocess.run(
    ["netstat", "-ano"],
    capture_output=True, text=True
)
for line in out.stdout.splitlines():
    if f":{PORT}" in line and "LISTENING" in line:
        parts = line.split()
        if parts:
            try:
                pid = int(parts[-1])
                print(f"killing PID {pid} on port {PORT}")
                subprocess.run(["taskkill", "/F", "/PID", str(pid)], capture_output=True)
            except (ValueError, IndexError):
                pass

# Spawn server fully detached
log_f = open(log_path, "wb")
err_f = open(err_path, "wb")

# DETACHED_PROCESS = 0x00000008, CREATE_NEW_PROCESS_GROUP = 0x00000200
flags = 0x00000008 | 0x00000200

proc = subprocess.Popen(
    [PYTHON, "-u", "-m", "captcha_solver.main", "--port", str(PORT)],
    cwd=WORKDIR,
    stdout=log_f,
    stderr=err_f,
    stdin=subprocess.DEVNULL,
    creationflags=flags,
    close_fds=True,
)
print(f"started PID {proc.pid}")

# Wait for server to be ready
print("waiting for server...")
for i in range(60):
    time.sleep(1)
    try:
        with urllib.request.urlopen(f"http://localhost:{PORT}/health", timeout=2) as r:
            data = r.read().decode("utf-8")
            print(f"READY after {i+1}s")
            print(f"health: {data[:200]}")
            break
    except Exception:
        if i % 5 == 4:
            print(f"  still waiting ({i+1}s)...")
else:
    print("TIMEOUT after 60s")
    print("--- log ---")
    if os.path.exists(log_path):
        with open(log_path) as f:
            print(f.read()[-2000:])
    print("--- err ---")
    if os.path.exists(err_path):
        with open(err_path) as f:
            print(f.read()[-2000:])
    sys.exit(1)