import os
import shutil
import subprocess
import time

from .postgres_container import PostgresContainer

ROOT_DIR = None


def run(args):
    global ROOT_DIR
    with PostgresContainer() as postgres:
        locality_env = {
            'LOCALITY_DATABASE_URL': postgres.get_url(),
            'LOCALITY_STATIC_FILE_PATH': os.path.join(
                ROOT_DIR,
                'static'),
            'LOCALITY_HMAC_SECRET': 'iknf4390-8guvmr3'
        }

        cargo_bin = shutil.which('cargo')
        locality_process = subprocess.Popen(
            [cargo_bin, 'run'], env=locality_env, cwd=ROOT_DIR
        )

        try:
            while locality_process.poll() is None:
                time.sleep(0.5)
        finally:
            if locality_process.poll() is None:
                locality_process.terminate()