import json
import logging
import os
import sqlite3
from typing import Dict

from playwright.sync_api import sync_playwright

logger = logging.getLogger("desktopenv.getters.chrome")

"""
WARNING: 
1. Functions from this script assume that no account is registered on Chrome, otherwise the default file path needs to be changed.
2. The functions are not tested on Windows and Mac, but they should work.
"""


# The following ones just need to load info from the files of software, no need to connect to the software
def get_default_search_engine(env, config: Dict[str, str]):
    os_type = env.vm_platform
    if os_type == 'Windows':
        preference_file_path = env.controller.execute_python_command("""import os; print(os.path.join(os.getenv('LOCALAPPDATA'),
                                            'Google\\Chrome\\User Data\\Default\\Preferences'))""")['output'].strip()
    elif os_type == 'Darwin':
        preference_file_path = env.controller.execute_python_command(
            "import os; print(os.path.join(os.getenv('HOME'), 'Library/Application Support/Google/Chrome/Default/Preferences'))")[
            'output'].strip()
    elif os_type == 'Linux':
        preference_file_path = env.controller.execute_python_command(
            "import os; print(os.path.join(os.getenv('HOME'), '.config/google-chrome/Default/Preferences'))")[
            'output'].strip()
    else:
        raise Exception('Unsupported operating system')

    try:
        content = env.controller.get_file(preference_file_path)
        data = json.loads(content)

        # The path within the JSON data to the default search engine might vary
        search_engine = data.get('default_search_provider_data', {}).get('template_url_data', {}).get('short_name',
                                                                                                      'Google')
        return search_engine
    except Exception as e:
        logger.error(f"Error: {e}")
        return "Google"


def get_cookie_data(env, config: Dict[str, str]):
    """
    Get the cookies from the Chrome browser.
    Assume the cookies are stored in the default location, not encrypted and not large in size.
    """
    os_type = env.vm_platform
    if os_type == 'Windows':
        chrome_cookie_file_path = env.controller.execute_python_command("""import os; print(os.path.join(os.getenv('LOCALAPPDATA'),
                                            'Google\\Chrome\\User Data\\Default\\Cookies'))""")['output'].strip()
    elif os_type == 'Darwin':
        chrome_cookie_file_path = env.controller.execute_python_command(
            "import os; print(os.path.join(os.getenv('HOME'), 'Library/Application Support/Google/Chrome/Default/Cookies'))")[
            'output'].strip()
    elif os_type == 'Linux':
        chrome_cookie_file_path = env.controller.execute_python_command(
            "import os; print(os.path.join(os.getenv('HOME'), '.config/google-chrome/Default/Cookies'))")[
            'output'].strip()
    else:
        raise Exception('Unsupported operating system')

    try:
        content = env.controller.get_file(chrome_cookie_file_path)
        _path = os.path.join(env.cache_dir, config["dest"])

        with open(_path, "wb") as f:
            f.write(content)

        conn = sqlite3.connect(_path)
        cursor = conn.cursor()

        # Query to check for OpenAI cookies
        cursor.execute("SELECT * FROM cookies")
        cookies = cursor.fetchall()
        return cookies
    except Exception as e:
        logger.error(f"Error: {e}")
        return None


def get_bookmarks(env, config: Dict[str, str]):
    os_type = env.vm_platform
    if os_type == 'Windows':
        preference_file_path = env.controller.execute_python_command("""import os; print(os.path.join(os.getenv('LOCALAPPDATA'),
                                            'Google\\Chrome\\User Data\\Default\\Bookmarks'))""")['output'].strip()
    elif os_type == 'Darwin':
        preference_file_path = env.controller.execute_python_command(
            "import os; print(os.path.join(os.getenv('HOME'), 'Library/Application Support/Google/Chrome/Default/Bookmarks'))")[
            'output'].strip()
    elif os_type == 'Linux':
        preference_file_path = env.controller.execute_python_command(
            "import os; print(os.path.join(os.getenv('HOME'), '.config/google-chrome/Default/Bookmarks'))")[
            'output'].strip()
    else:
        raise Exception('Unsupported operating system')

    content = env.controller.get_file(preference_file_path)
    if not content:
        return []
    data = json.loads(content)
    bookmarks = data.get('roots', {})
    return bookmarks


# todo: move this to the main.py
def get_extensions_installed_from_shop(env, config: Dict[str, str]):
    """Find the Chrome extensions directory based on the operating system."""
    os_type = env.vm_platform
    if os_type == 'Windows':
        chrome_extension_dir = env.controller.execute_python_command(
            """os.path.expanduser('~') + '\\AppData\\Local\\Google\\Chrome\\User Data\\Default\\Extensions\\'""")[
            'output'].strip()
    elif os_type == 'Darwin':  # macOS
        chrome_extension_dir = env.controller.execute_python_command(
            """os.path.expanduser('~') + '/Library/Application Support/Google/Chrome/Default/Extensions/'""")[
            'output'].strip()
    elif os_type == 'Linux':
        chrome_extension_dir = env.controller.execute_python_command(
            """os.path.expanduser('~') + '/.config/google-chrome/Default/Extensions/'""")['output'].strip()
    else:
        raise Exception('Unsupported operating system')

    manifests = []
    for extension_id in os.listdir(chrome_extension_dir):
        extension_path = os.path.join(chrome_extension_dir, extension_id)
        if os.path.isdir(extension_path):
            # Iterate through version-named subdirectories
            for version_dir in os.listdir(extension_path):
                version_path = os.path.join(extension_path, version_dir)
                manifest_path = os.path.join(version_path, 'manifest.json')
                if os.path.isfile(manifest_path):
                    with open(manifest_path, 'r') as file:
                        try:
                            manifest = json.load(file)
                            manifests.append(manifest)
                        except json.JSONDecodeError:
                            logger.error(f"Error reading {manifest_path}")
    return manifests


# The following ones require Playwright to be installed on the target machine, and the chrome needs to be pre-config on
# port info to allow remote debugging, see README.md for details

def get_open_tabs_info(env, config: Dict[str, str]):
    host = env.vm_ip
    port = 9222  # fixme: this port is hard-coded, need to be changed from config file

    remote_debugging_url = f"http://{host}:{port}"
    with sync_playwright() as p:
        # connect to remote Chrome instance
        browser = p.chromium.connect_over_cdp(remote_debugging_url)

        tabs_info = []
        for context in browser.contexts:
            for page in context.pages:
                try:
                    # Wait for the page to finish loading, this prevents the "execution context was destroyed" issue
                    page.wait_for_load_state('load')  # Wait for the 'load' event to complete
                    title = page.title()
                    url = page.url
                    tabs_info.append({'title': title, 'url': url})
                except TimeoutError:
                    # If page loading times out, catch the exception and store the current information in the list
                    tabs_info.append({'title': 'Load timeout', 'url': page.url})
                except Exception as e:
                    # Catch other potential exceptions that might occur while reading the page title
                    print(f'Error: {e}')
                    tabs_info.append({'title': 'Error encountered', 'url': page.url})

        browser.close()
        return tabs_info


def get_active_tab_info(env, config: Dict[str, str]):
    host = env.vm_ip
    port = 9222  # fixme: this port is hard-coded, need to be changed from config file

    remote_debugging_url = f"http://{host}:{port}"
    with sync_playwright() as p:
        # connect to remote Chrome instance
        browser = p.chromium.connect_over_cdp(remote_debugging_url)

        active_tab_info = {}
        for context in browser.contexts:
            for page in context.pages:
                if page.is_visible("body"):  # check the visibility of the page body to determine the active status
                    active_tab_info = {
                        'title': page.title(),
                        'url': page.url,
                        'content': page.content()  # get the HTML content of the page
                    }
                    break
            if active_tab_info:
                break

        browser.close()
        return active_tab_info


def get_pdf_from_url(env, config: Dict[str, str]) -> str:
    """
    Download a PDF from a URL.
    """
    _url = config["path"]
    _path = os.path.join(env.cache_dir, config["dest"])

    host = env.vm_ip
    port = 9222  # fixme: this port is hard-coded, need to be changed from config file

    remote_debugging_url = f"http://{host}:{port}"

    with sync_playwright() as p:
        browser = p.chromium.connect_over_cdp(remote_debugging_url)
        page = browser.new_page()
        page.goto(_url)
        page.pdf(path=_path)
        browser.close()

    return _path


# fixme: needs to be changed (maybe through post-processing) since it's not working
def get_chrome_saved_address(env, config: Dict[str, str]):
    # host = env.vm_ip
    host = "192.168.13.130"
    port = 9222  # fixme: this port is hard-coded, need to be changed from config file

    remote_debugging_url = f"http://{host}:{port}"
    with sync_playwright() as p:
        # connect to remote Chrome instance
        browser = p.chromium.connect_over_cdp(remote_debugging_url)

        page = browser.new_page()

        # Navigate to Chrome's settings page for autofill
        page.goto("chrome://settings/addresses")

        # Get the HTML content of the page
        content = page.content()

        browser.close()

    return content


def get_shortcuts_on_desktop(env, config: Dict[str, str]):
    # Find out the operating system
    os_name = env.vm_platform

    # Depending on the OS, define the shortcut file extension
    if os_name == 'Windows':
        # Windows shortcuts are typically .url or .lnk files
        shortcut_extension = '.lnk'
    elif os_name == 'Darwin':
        # macOS's shortcuts are .webloc files
        shortcut_extension = '.webloc'
    elif os_name == 'Linux':
        # Linux (Ubuntu, etc.) shortcuts are typically .desktop files
        shortcut_extension = '.desktop'
    else:
        logger.error(f"Unsupported operating system: {os_name}")
        return []

    # Get the path to the desktop folder
    desktop_path = env.controller.get_vm_desktop_path()
    desktop_directory_tree = env.controller.get_vm_directory_tree(desktop_path)

    shortcuts_paths = [file['name'] for file in desktop_directory_tree['children'] if
                       file['name'].endswith(shortcut_extension)]

    short_cuts = {}

    for shortcut_path in shortcuts_paths:
        short_cuts[shortcut_path] = env.controller.get_file(env.controller.execute_python_command(
            f"import os; print(os.path.join(os.path.expanduser('~'), 'Desktop', '{shortcut_path}'))")['output'].strip()).decode('utf-8')

    return short_cuts