from fastapi import Body
from configs import LLM_MODELS, TEMPERATURE, MAX_TOKENS
from server.chat.policy_fun_iast import get_llm_model_response
from typing import Optional
from langchain.chains import LLMChain
from langchain.prompts import ChatPromptTemplate
from server.chat.utils import History
from server.utils import wrap_done, get_ChatOpenAI, get_prompt_template
from langchain.callbacks import AsyncIteratorCallbackHandler
import asyncio
from server.knowledge_base.kb_service.base import TextRank
from configs.basic_config import *

async def abb_rewrite(
    # context: Optional[str] = Body(..., description="当前已撰写的全文", examples=[""]),
    query: str = Body(..., description="用户框选的段落", examples=[""]),
    # previous_text: Optional[str] = Body(..., description="用户框选段落的前文", examples=[""]),
    # following_text: Optional[str] = Body(..., description="用户框选段落的后文", examples=[""]),
    # con_direction: Optional[str] = Body("", description="用户输入的缩写指令", examples=[""]),
    # stream: bool = Body(False, description="是否流式输出", examples=[False]),
    temperature: float = Body(TEMPERATURE, description="LLM 采样温度", ge=0.0, le=2.0),
    max_tokens: Optional[int] = Body(512, description="限制LLM生成Token数量，默认None代表模型最大值"),
    # prompt_name: Optional[str] = Body("abb_rewrite"),
):
    logger.info(f"开始缩写...")

    # 定义生成摘要的函数
    # def generate_summary(text: str) -> str:
    #     """使用 TextRank 生成文本摘要"""
    #     if len(text) <= 20000:
    #         summary = TextRank(text, num_sentences=60)  # 生成60句话的摘要
    #     else:
    #         summary = TextRank(text, num_sentences=80)  # 生成80句话的摘要
    #     return summary

    # # 根据上下文长度决定是否生成摘要
    # if len(context) >= 15000:
    #     context_summary = generate_summary(context)
    #     logger.info(f"生成撰写文稿的摘要: %s", context_summary)
    # else:
    #     context_summary = context  # 直接使用原文
    #     logger.info(f"撰写文稿小于15000字符，使用原文")

    # 调用模型生成缩写内容
    try:
        abb_rewrite_content = get_llm_model_response(
            strategy_name="abb_rewrite",
            llm_model_name=LLM_MODELS[0],
            template_prompt_name="abb_rewrite",
            prompt_param_dict={
                # "context": context_summary,  # 使用摘要或原文
                "paragraph_content": query,
                # "con_direction": con_direction,
                # "previous_text": previous_text,
                # "following_text": following_text
            },
            temperature=TEMPERATURE,
            max_tokens=MAX_TOKENS
        )
        # logger.info("生成的缩写内容: %s", abb_rewrite_content)
    except Exception as e:
        logger.error("生成缩写内容时出错: %s", e)
        return (f"出错了。。请重试。。")

    # # 如果 previous_text 和 following_text 存在空值，直接返回 abb_rewrite_content
    # if not previous_text or not following_text:
    #     logger.info("上文或下文为空，直接返回生成的内容。。")
    #     final_content = abb_rewrite_content
    # else:
    #     # 定义内容检查函数
    #     def abb_rewrite_check(abb_rewrite_content: str) -> str:
    #         logger.info("对文章缩写内容进行行文检查。。")            
    #         try:
    #             abb_rewrite_check_content = get_llm_model_response(
    #                     strategy_name="abb_rewrite_check",
    #                     llm_model_name=LLM_MODELS[0],
    #                     template_prompt_name="abb_rewrite_check",
    #                     prompt_param_dict={
    #                         "previous_text": previous_text,
    #                         "following_text": following_text,
    #                         "abb_rewrite_content": abb_rewrite_content,  # 使用生成的 rewrite_content
    #                     },
    #                     temperature=temperature,
    #                     max_tokens=max_tokens
    #                 )
    #             logger.info("检查后的缩写内容: %s", abb_rewrite_check_content)
    #             return abb_rewrite_check_content
    #         except Exception as e:
    #             logger.error("检查缩写内容时出错: %s", e)
    #             return (f"出错了。。请重试。。")

    #     # 调用内容检查函数
    #     final_content = abb_rewrite_check(abb_rewrite_content)

    # 返回最终生成的字符串
    return abb_rewrite_content