# ####################################
# ######### DEPRECATED FILE ##########
# ####################################
# # logic moved to `vertex_httpx.py` #

import copy
import time
import traceback
import types
from typing import Callable, Optional

import httpx
from packaging.version import Version

import litellm
from litellm import verbose_logger
from litellm.utils import Choices, Message, ModelResponse, Usage

from .prompt_templates.factory import custom_prompt, get_system_prompt, prompt_factory


class GeminiError(Exception):
    def __init__(self, status_code, message):
        self.status_code = status_code
        self.message = message
        self.request = httpx.Request(
            method="POST",
            url="https://developers.generativeai.google/api/python/google/generativeai/chat",
        )
        self.response = httpx.Response(status_code=status_code, request=self.request)
        super().__init__(
            self.message
        )  # Call the base class constructor with the parameters it needs


class GeminiConfig:
    """
    Reference: https://ai.google.dev/api/python/google/generativeai/GenerationConfig

    The class `GeminiConfig` provides configuration for the Gemini's API interface. Here are the parameters:

    - `candidate_count` (int): Number of generated responses to return.

    - `stop_sequences` (List[str]): The set of character sequences (up to 5) that will stop output generation. If specified, the API will stop at the first appearance of a stop sequence. The stop sequence will not be included as part of the response.

    - `max_output_tokens` (int): The maximum number of tokens to include in a candidate. If unset, this will default to output_token_limit specified in the model's specification.

    - `temperature` (float): Controls the randomness of the output. Note: The default value varies by model, see the Model.temperature attribute of the Model returned the genai.get_model function. Values can range from [0.0,1.0], inclusive. A value closer to 1.0 will produce responses that are more varied and creative, while a value closer to 0.0 will typically result in more straightforward responses from the model.

    - `top_p` (float): Optional. The maximum cumulative probability of tokens to consider when sampling.

    - `top_k` (int): Optional. The maximum number of tokens to consider when sampling.
    """

    candidate_count: Optional[int] = None
    stop_sequences: Optional[list] = None
    max_output_tokens: Optional[int] = None
    temperature: Optional[float] = None
    top_p: Optional[float] = None
    top_k: Optional[int] = None

    def __init__(
        self,
        candidate_count: Optional[int] = None,
        stop_sequences: Optional[list] = None,
        max_output_tokens: Optional[int] = None,
        temperature: Optional[float] = None,
        top_p: Optional[float] = None,
        top_k: Optional[int] = None,
    ) -> None:
        locals_ = locals()
        for key, value in locals_.items():
            if key != "self" and value is not None:
                setattr(self.__class__, key, value)

    @classmethod
    def get_config(cls):
        return {
            k: v
            for k, v in cls.__dict__.items()
            if not k.startswith("__")
            and not isinstance(
                v,
                (
                    types.FunctionType,
                    types.BuiltinFunctionType,
                    classmethod,
                    staticmethod,
                ),
            )
            and v is not None
        }


# class TextStreamer:
#     """
#     A class designed to return an async stream from AsyncGenerateContentResponse object.
#     """

#     def __init__(self, response):
#         self.response = response
#         self._aiter = self.response.__aiter__()

#     async def __aiter__(self):
#         while True:
#             try:
#                 # This will manually advance the async iterator.
#                 # In the case the next object doesn't exists, __anext__() will simply raise a StopAsyncIteration exception
#                 next_object = await self._aiter.__anext__()
#                 yield next_object
#             except StopAsyncIteration:
#                 # After getting all items from the async iterator, stop iterating
#                 break


# def supports_system_instruction():
#     import google.generativeai as genai

#     gemini_pkg_version = Version(genai.__version__)
#     return gemini_pkg_version >= Version("0.5.0")


# def completion(
#     model: str,
#     messages: list,
#     model_response: ModelResponse,
#     print_verbose: Callable,
#     api_key,
#     encoding,
#     logging_obj,
#     custom_prompt_dict: dict,
#     acompletion: bool = False,
#     optional_params=None,
#     litellm_params=None,
#     logger_fn=None,
# ):
#     try:
#         import google.generativeai as genai  # type: ignore
#     except:
#         raise Exception(
#             "Importing google.generativeai failed, please run 'pip install -q google-generativeai"
#         )
#     genai.configure(api_key=api_key)
#     system_prompt = ""
#     if model in custom_prompt_dict:
#         # check if the model has a registered custom prompt
#         model_prompt_details = custom_prompt_dict[model]
#         prompt = custom_prompt(
#             role_dict=model_prompt_details["roles"],
#             initial_prompt_value=model_prompt_details["initial_prompt_value"],
#             final_prompt_value=model_prompt_details["final_prompt_value"],
#             messages=messages,
#         )
#     else:
#         system_prompt, messages = get_system_prompt(messages=messages)
#         prompt = prompt_factory(
#             model=model, messages=messages, custom_llm_provider="gemini"
#         )

#     ## Load Config
#     inference_params = copy.deepcopy(optional_params)
#     stream = inference_params.pop("stream", None)

#     # Handle safety settings
#     safety_settings_param = inference_params.pop("safety_settings", None)
#     safety_settings = None
#     if safety_settings_param:
#         safety_settings = [
#             genai.types.SafetySettingDict(x) for x in safety_settings_param
#         ]

#     config = litellm.GeminiConfig.get_config()
#     for k, v in config.items():
#         if (
#             k not in inference_params
#         ):  # completion(top_k=3) > gemini_config(top_k=3) <- allows for dynamic variables to be passed in
#             inference_params[k] = v

#     ## LOGGING
#     logging_obj.pre_call(
#         input=prompt,
#         api_key="",
#         additional_args={
#             "complete_input_dict": {
#                 "inference_params": inference_params,
#                 "system_prompt": system_prompt,
#             }
#         },
#     )
#     ## COMPLETION CALL
#     try:
#         _params = {"model_name": "models/{}".format(model)}
#         _system_instruction = supports_system_instruction()
#         if _system_instruction and len(system_prompt) > 0:
#             _params["system_instruction"] = system_prompt
#         _model = genai.GenerativeModel(**_params)
#         if stream is True:
#             if acompletion is True:

#                 async def async_streaming():
#                     try:
#                         response = await _model.generate_content_async(
#                             contents=prompt,
#                             generation_config=genai.types.GenerationConfig(
#                                 **inference_params
#                             ),
#                             safety_settings=safety_settings,
#                             stream=True,
#                         )

#                         response = litellm.CustomStreamWrapper(
#                             TextStreamer(response),
#                             model,
#                             custom_llm_provider="gemini",
#                             logging_obj=logging_obj,
#                         )
#                         return response
#                     except Exception as e:
#                         raise GeminiError(status_code=500, message=str(e))

#                 return async_streaming()
#             response = _model.generate_content(
#                 contents=prompt,
#                 generation_config=genai.types.GenerationConfig(**inference_params),
#                 safety_settings=safety_settings,
#                 stream=True,
#             )
#             return response
#         elif acompletion == True:
#             return async_completion(
#                 _model=_model,
#                 model=model,
#                 prompt=prompt,
#                 inference_params=inference_params,
#                 safety_settings=safety_settings,
#                 logging_obj=logging_obj,
#                 print_verbose=print_verbose,
#                 model_response=model_response,
#                 messages=messages,
#                 encoding=encoding,
#             )
#         else:
#             params = {
#                 "contents": prompt,
#                 "generation_config": genai.types.GenerationConfig(**inference_params),
#                 "safety_settings": safety_settings,
#             }
#             response = _model.generate_content(**params)
#     except Exception as e:
#         raise GeminiError(
#             message=str(e),
#             status_code=500,
#         )

#     ## LOGGING
#     logging_obj.post_call(
#         input=prompt,
#         api_key="",
#         original_response=response,
#         additional_args={"complete_input_dict": {}},
#     )
#     print_verbose(f"raw model_response: {response}")
#     ## RESPONSE OBJECT
#     completion_response = response
#     try:
#         choices_list = []
#         for idx, item in enumerate(completion_response.candidates):
#             if len(item.content.parts) > 0:
#                 message_obj = Message(content=item.content.parts[0].text)
#             else:
#                 message_obj = Message(content=None)
#             choice_obj = Choices(index=idx, message=message_obj)
#             choices_list.append(choice_obj)
#         model_response.choices = choices_list
#     except Exception as e:
#         verbose_logger.error("LiteLLM.gemini.py: Exception occured - {}".format(str(e)))
#         raise GeminiError(
#             message=traceback.format_exc(), status_code=response.status_code
#         )

#     try:
#         completion_response = model_response["choices"][0]["message"].get("content")
#         if completion_response is None:
#             raise Exception
#     except:
#         original_response = f"response: {response}"
#         if hasattr(response, "candidates"):
#             original_response = f"response: {response.candidates}"
#             if "SAFETY" in original_response:
#                 original_response += (
#                     "\nThe candidate content was flagged for safety reasons."
#                 )
#             elif "RECITATION" in original_response:
#                 original_response += (
#                     "\nThe candidate content was flagged for recitation reasons."
#                 )
#         raise GeminiError(
#             status_code=400,
#             message=f"No response received. Original response - {original_response}",
#         )

#     ## CALCULATING USAGE
#     prompt_str = ""
#     for m in messages:
#         if isinstance(m["content"], str):
#             prompt_str += m["content"]
#         elif isinstance(m["content"], list):
#             for content in m["content"]:
#                 if content["type"] == "text":
#                     prompt_str += content["text"]
#     prompt_tokens = len(encoding.encode(prompt_str))
#     completion_tokens = len(
#         encoding.encode(model_response["choices"][0]["message"].get("content", ""))
#     )

#     model_response.created = int(time.time())
#     model_response.model = "gemini/" + model
#     usage = Usage(
#         prompt_tokens=prompt_tokens,
#         completion_tokens=completion_tokens,
#         total_tokens=prompt_tokens + completion_tokens,
#     )
#     setattr(model_response, "usage", usage)
#     return model_response


# async def async_completion(
#     _model,
#     model,
#     prompt,
#     inference_params,
#     safety_settings,
#     logging_obj,
#     print_verbose,
#     model_response,
#     messages,
#     encoding,
# ):
#     import google.generativeai as genai  # type: ignore

#     response = await _model.generate_content_async(
#         contents=prompt,
#         generation_config=genai.types.GenerationConfig(**inference_params),
#         safety_settings=safety_settings,
#     )

#     ## LOGGING
#     logging_obj.post_call(
#         input=prompt,
#         api_key="",
#         original_response=response,
#         additional_args={"complete_input_dict": {}},
#     )
#     print_verbose(f"raw model_response: {response}")
#     ## RESPONSE OBJECT
#     completion_response = response
#     try:
#         choices_list = []
#         for idx, item in enumerate(completion_response.candidates):
#             if len(item.content.parts) > 0:
#                 message_obj = Message(content=item.content.parts[0].text)
#             else:
#                 message_obj = Message(content=None)
#             choice_obj = Choices(index=idx, message=message_obj)
#             choices_list.append(choice_obj)
#         model_response["choices"] = choices_list
#     except Exception as e:
#         verbose_logger.error("LiteLLM.gemini.py: Exception occured - {}".format(str(e)))
#         raise GeminiError(
#             message=traceback.format_exc(), status_code=response.status_code
#         )

#     try:
#         completion_response = model_response["choices"][0]["message"].get("content")
#         if completion_response is None:
#             raise Exception
#     except:
#         original_response = f"response: {response}"
#         if hasattr(response, "candidates"):
#             original_response = f"response: {response.candidates}"
#             if "SAFETY" in original_response:
#                 original_response += (
#                     "\nThe candidate content was flagged for safety reasons."
#                 )
#             elif "RECITATION" in original_response:
#                 original_response += (
#                     "\nThe candidate content was flagged for recitation reasons."
#                 )
#         raise GeminiError(
#             status_code=400,
#             message=f"No response received. Original response - {original_response}",
#         )

#     ## CALCULATING USAGE
#     prompt_str = ""
#     for m in messages:
#         if isinstance(m["content"], str):
#             prompt_str += m["content"]
#         elif isinstance(m["content"], list):
#             for content in m["content"]:
#                 if content["type"] == "text":
#                     prompt_str += content["text"]
#     prompt_tokens = len(encoding.encode(prompt_str))
#     completion_tokens = len(
#         encoding.encode(model_response["choices"][0]["message"].get("content", ""))
#     )

#     model_response["created"] = int(time.time())
#     model_response["model"] = "gemini/" + model
#     usage = Usage(
#         prompt_tokens=prompt_tokens,
#         completion_tokens=completion_tokens,
#         total_tokens=prompt_tokens + completion_tokens,
#     )
#     model_response.usage = usage
#     return model_response


# def embedding():
#     # logic for parsing in - calling - parsing out model embedding calls
#     pass