#!/usr/bin/env python3
"""
Shared test utilities and configuration
"""

import os
import requests
from selenium import webdriver
from selenium.webdriver.chrome.options import Options
from selenium.webdriver.chrome.service import Service
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC

# Configuration
BASE_URL = os.getenv("UI_BASE_URL", "http://localhost:20211")
API_BASE_URL = os.getenv("API_BASE_URL", "http://localhost:20212")


def get_api_token():
    """Get API token from config file or environment"""
    # Check environment first
    if os.getenv("API_TOKEN"):
        return os.getenv("API_TOKEN")

    config_path = "/data/config/app.conf"
    try:
        with open(config_path, 'r') as f:
            for line in f:
                if line.startswith('API_TOKEN='):
                    token = line.split('=', 1)[1].strip()
                    # Remove both single and double quotes
                    token = token.strip('"').strip("'")
                    return token
    except FileNotFoundError:
        print(f"⚠ Config file not found: {config_path}")
    return None


# Load API_TOKEN at module initialization
API_TOKEN = get_api_token()


def get_driver(download_dir=None):
    """Create a Selenium WebDriver for Chrome/Chromium

    Args:
        download_dir: Optional directory for downloads. If None, uses /tmp/selenium_downloads
    """

    # Check if chromedriver exists
    chromedriver_paths = ['/usr/bin/chromedriver', '/usr/local/bin/chromedriver']
    chromium_paths = ['/usr/bin/chromium', '/usr/bin/chromium-browser', '/usr/bin/google-chrome']

    chromedriver = None
    for path in chromedriver_paths:
        if os.path.exists(path):
            chromedriver = path
            break

    chromium = None
    for path in chromium_paths:
        if os.path.exists(path):
            chromium = path
            break

    if not chromedriver:
        print(f"⚠ chromedriver not found in {chromedriver_paths}")
        return None

    if not chromium:
        print(f"⚠ chromium not found in {chromium_paths}")
        return None

    # Setup download directory
    if download_dir is None:
        download_dir = "/tmp/selenium_downloads"
    os.makedirs(download_dir, exist_ok=True)

    chrome_options = Options()
    chrome_options.add_argument('--headless=new')
    chrome_options.add_argument('--no-sandbox')
    chrome_options.add_argument('--disable-dev-shm-usage')
    chrome_options.add_argument('--disable-gpu')
    chrome_options.add_argument('--disable-software-rasterizer')
    chrome_options.add_argument('--disable-extensions')
    chrome_options.add_argument('--window-size=1920,1080')
    chrome_options.binary_location = chromium

    # Configure downloads
    prefs = {
        "download.default_directory": download_dir,
        "download.prompt_for_download": False,
        "download.directory_upgrade": True,
        "safebrowsing.enabled": False
    }
    chrome_options.add_experimental_option("prefs", prefs)

    try:
        service = Service(chromedriver)
        driver = webdriver.Chrome(service=service, options=chrome_options)
        driver.download_dir = download_dir  # Store for later use
        return driver
    except Exception as e:
        print(f"⚠ Could not start Chromium: {e}")
        import traceback
        traceback.print_exc()
        return None


def api_get(endpoint, api_token, timeout=5):
    """Make GET request to API - endpoint should be path only (e.g., '/devices')"""
    headers = {"Authorization": f"Bearer {api_token}"}
    # Handle both full URLs and path-only endpoints
    url = endpoint if endpoint.startswith('http') else f"{API_BASE_URL}{endpoint}"
    return requests.get(url, headers=headers, timeout=timeout)


def api_post(endpoint, api_token, data=None, timeout=5):
    """Make POST request to API - endpoint should be path only (e.g., '/devices')"""
    headers = {"Authorization": f"Bearer {api_token}"}
    # Handle both full URLs and path-only endpoints
    url = endpoint if endpoint.startswith('http') else f"{API_BASE_URL}{endpoint}"
    return requests.post(url, headers=headers, json=data, timeout=timeout)


# --- Page load and element wait helpers (used by UI tests) ---
def wait_for_page_load(driver, timeout=10):
    """Wait until the browser reports the document readyState is 'complete'."""
    WebDriverWait(driver, timeout).until(
        lambda d: d.execute_script("return document.readyState") == "complete"
    )


def wait_for_element_by_css(driver, css_selector, timeout=10):
    """Wait for presence of an element matching a CSS selector and return it."""
    return WebDriverWait(driver, timeout).until(
        EC.presence_of_element_located((By.CSS_SELECTOR, css_selector))
    )


def wait_for_input_value(driver, element_id, timeout=10):
    """Wait for the input with given id to have a non-empty value and return it."""
    def _get_val(d):
        try:
            el = d.find_element(By.ID, element_id)
            val = el.get_attribute("value")
            return val if val else False
        except Exception:
            return False

    return WebDriverWait(driver, timeout).until(_get_val)