import pathlib
import os 
import requests
from dotenv import load_dotenv

# List Utils

# Convert a hosts file to a simple hostname list
def convert_to_list(file:pathlib.Path) -> list:
    with open(file, 'r') as f:
        # Don't read commented lines; strip whitespace; remove 127.0.0.1 from beginning of line; ignore lines with "localhost"; ignore lines with "::1"; ignore newlines            blocklists.extend([i[10:].strip() for i in f.readlines() if not i.startswith('#') and 'localhost' not in i and '::1' not in i])
        hosts = ([i[10:].strip() for i in f.readlines() if not i.startswith('#') and 'localhost' not in i and '::1' not in i])
        # Equivalent to:
        # for x in f.readlines():
        #     if not x.startswith('#') and 'localhost' not in x and '::1' not in x:
        #         hosts.append(x[10:].strip())
        # If there are any empty strings in the list, remove them since for some reason, whitespace is stil in the list
        hosts = [i for i in hosts if i != '']
        return hosts

# General Utils

# Load environment variables
def load_env() -> dict:
    load_dotenv(".env")
    if not os.environ.get('CLOUDFLARE_TOKEN') and not os.environ.get('CLOUDFLARE_ACCOUNT_ID'):
        load_dotenv(".envrc")
    if not os.environ.get('CLOUDFLARE_TOKEN') or not os.environ.get('CLOUDFLARE_ACCOUNT_ID'):
        print('No environment variables found. Please create a .env file or .envrc file')
        exit()
    else:  
        return {"CLOUDFLARE_TOKEN": os.environ.get('CLOUDFLARE_TOKEN'), "CLOUDFLARE_ACCOUNT_ID": os.environ.get('CLOUDFLARE_ACCOUNT_ID')}



def get_lists() -> dict:
    url = f'https://api.cloudflare.com/client/v4/accounts/{ACCOUNT_ID}/gateway/lists'
    headers = {
        'Authorization': f'Bearer {TOKEN}',
        "Content-Type": "application/json",
    }
    response = requests.get(url, headers=headers)
    if response.status_code != 200:
        print(f'Error getting lists: {response.text}')
    return response.json()['result']

def filter_adblock_lists(lists: dict) -> dict:
    adblock_lists = []
    for lst in lists:
        if lst['name'].startswith('adblock-list') and lst['type'] == 'DOMAIN':
            adblock_lists.append(lst)
    return adblock_lists

TOKEN = load_env()['CLOUDFLARE_TOKEN']
ACCOUNT_ID = load_env()['CLOUDFLARE_ACCOUNT_ID']