import json
import os
import random
import re
from typing import get_type_hints

import browser_cookie3
import requests

url = "https://bard.google.com"
model = ["Palm2"]
supports_stream = False
needs_auth = True


def _create_completion(model: str, messages: list, stream: bool, **kwargs):
    psid = {cookie.name: cookie.value for cookie in browser_cookie3.chrome(domain_name=".google.com")}["__Secure-1PSID"]

    formatted = "\n".join(["%s: %s" % (message["role"], message["content"]) for message in messages])
    prompt = f"{formatted}\nAssistant:"

    proxy = kwargs.get("proxy", False)
    if proxy == False:
        print("warning!, you did not give a proxy, a lot of countries are banned from Google Bard, so it may not work")

    snlm0e = None
    conversation_id = None
    response_id = None
    choice_id = None

    client = requests.Session()
    client.proxies = {"http": f"http://{proxy}", "https": f"http://{proxy}"} if proxy else None

    client.headers = {
        "authority": "bard.google.com",
        "content-type": "application/x-www-form-urlencoded;charset=UTF-8",
        "origin": "https://bard.google.com",
        "referer": "https://bard.google.com/",
        "user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.0.0 Safari/537.36",
        "x-same-domain": "1",
        "cookie": f"__Secure-1PSID={psid}",
    }

    snlm0e = (
        re.search(r"SNlM0e\":\"(.*?)\"", client.get("https://bard.google.com/").text).group(1) if not snlm0e else snlm0e
    )

    params = {
        "bl": "boq_assistant-bard-web-server_20230326.21_p0",
        "_reqid": random.randint(1111, 9999),
        "rt": "c",
    }

    data = {
        "at": snlm0e,
        "f.req": json.dumps(
            [
                None,
                json.dumps([[prompt], None, [conversation_id, response_id, choice_id]]),
            ]
        ),
    }

    intents = ".".join(["assistant", "lamda", "BardFrontendService"])

    response = client.post(
        f"https://bard.google.com/_/BardChatUi/data/{intents}/StreamGenerate",
        data=data,
        params=params,
    )

    chat_data = json.loads(response.content.splitlines()[3])[0][2]
    if chat_data:
        json_chat_data = json.loads(chat_data)

        yield json_chat_data[0][0]

    else:
        yield "error"


params = f"g4f.Providers.{os.path.basename(__file__)[:-3]} supports: " + "(%s)" % ", ".join(
    [
        f"{name}: {get_type_hints(_create_completion)[name].__name__}"
        for name in _create_completion.__code__.co_varnames[: _create_completion.__code__.co_argcount]
    ]
)