import sys
from concurrent.futures import ThreadPoolExecutor
from typing import Dict, List, Optional, Union

from opencompass.utils.prompt import PromptList

from .base_api import BaseAPIModel

PromptType = Union[PromptList, str]


class ZhiPuAI(BaseAPIModel):
    """Model wrapper around ZhiPuAI.

    Args:
        path (str): The name of OpenAI's model.
        key (str): Authorization key.
        query_per_second (int): The maximum queries allowed per second
            between two consecutive calls of the API. Defaults to 1.
        max_seq_len (int): Unused here.
        meta_template (Dict, optional): The model's meta prompt
            template if needed, in case the requirement of injecting or
            wrapping of any meta instructions.
        retry (int): Number of retires if the API call fails. Defaults to 2.
    """

    def __init__(
        self,
        path: str,
        key: str,
        query_per_second: int = 2,
        max_seq_len: int = 2048,
        meta_template: Optional[Dict] = None,
        retry: int = 2,
    ):
        super().__init__(path=path,
                         max_seq_len=max_seq_len,
                         query_per_second=query_per_second,
                         meta_template=meta_template,
                         retry=retry)
        import zhipuai
        self.zhipuai = zhipuai
        self.zhipuai.api_key = key
        self.model = path

    def generate(
        self,
        inputs: List[str or PromptList],
        max_out_len: int = 512,
    ) -> List[str]:
        """Generate results given a list of inputs.

        Args:
            inputs (List[str or PromptList]): A list of strings or PromptDicts.
                The PromptDict should be organized in OpenCompass'
                API format.
            max_out_len (int): The maximum length of the output.

        Returns:
            List[str]: A list of generated strings.
        """
        with ThreadPoolExecutor() as executor:
            results = list(
                executor.map(self._generate, inputs,
                             [max_out_len] * len(inputs)))
        self.flush()
        return results

    def flush(self):
        """Flush stdout and stderr when concurrent resources exists.

        When use multiproessing with standard io rediected to files, need to
        flush internal information for examination or log loss when system
        breaks.
        """
        if hasattr(self, 'tokens'):
            sys.stdout.flush()
            sys.stderr.flush()

    def acquire(self):
        """Acquire concurrent resources if exists.

        This behavior will fall back to wait with query_per_second if there are
        no concurrent resources.
        """
        if hasattr(self, 'tokens'):
            self.tokens.acquire()
        else:
            self.wait()

    def release(self):
        """Release concurrent resources if acquired.

        This behavior will fall back to do nothing if there are no concurrent
        resources.
        """
        if hasattr(self, 'tokens'):
            self.tokens.release()

    def _generate(
        self,
        input: str or PromptList,
        max_out_len: int = 512,
    ) -> str:
        """Generate results given an input.

        Args:
            inputs (str or PromptList): A string or PromptDict.
                The PromptDict should be organized in OpenCompass'
                API format.
            max_out_len (int): The maximum length of the output.

        Returns:
            str: The generated string.
        """
        assert isinstance(input, (str, PromptList))

        if isinstance(input, str):
            messages = [{'role': 'user', 'content': input}]
        else:
            messages = []
            for item in input:
                msg = {'content': item['prompt']}
                if item['role'] == 'HUMAN':
                    msg['role'] = 'user'
                elif item['role'] == 'BOT':
                    msg['role'] = 'assistant'
                messages.append(msg)

        data = {'model': self.model, 'prompt': messages}

        max_num_retries = 0
        while max_num_retries < self.retry:
            self.acquire()
            response = self.zhipuai.model_api.invoke(**data)
            self.release()

            if response is None:
                print('Connection error, reconnect.')
                # if connect error, frequent requests will casuse
                # continuous unstable network, therefore wait here
                # to slow down the request
                self.wait()
                continue
            if response['code'] == 200 and response['success']:
                msg = response['data']['choices'][0]['content']
                return msg
            # sensitive content, prompt overlength, network error
            # or illegal prompt
            if (response['code'] == 1301 or response['code'] == 1261
                    or response['code'] == 1234 or response['code'] == 1214):
                print(response['msg'])
                return ''
            print(response)
            max_num_retries += 1

        raise RuntimeError(response['msg'])
