# Copyright 2024 PKU-Alignment Team. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ==============================================================================
"""访问文本模型的命令行界面"""

import argparse
import os
from openai import OpenAI
import gradio as gr
import random
random.seed(42)

CURRENT_DIR = os.path.dirname(os.path.abspath(__file__))

# 系统提示词，可以根据需要修改
SYSTEM_PROMPT = "你是一个有帮助的AI助手，能够回答用户的问题并提供帮助。"

# 连接设置
openai_api_key = "jiayi"  # 不重要，仅用于初始化客户端

aligner_port = 8013
base_port = 8011
aligner_api_base = f"http://0.0.0.0:{aligner_port}/v1"
base_api_base = f"http://0.0.0.0:{base_port}/v1" 


# openai_api_base = "http://0.0.0.0:8009/v1"  # 请修改为实际的模型API端口

# NOTE please modify the model path
aligner_model = ""
base_model = ""

aligner_client = OpenAI(
    api_key = openai_api_key,
    base_url = aligner_api_base,
)

base_client = OpenAI(
    api_key = openai_api_key,
    base_url = base_api_base,
)

# 示例问题
# TEXT_EXAMPLES = [
#     {"text": "介绍一下北京大学的历史"},
#     {"text": "解释一下什么是深度学习"},
#     {"text": "写一首关于春天的诗"},
# ]
TEXT_EXAMPLES = [
    "介绍一下北京大学的历史",
    "解释一下什么是深度学习",
    "写一首关于春天的诗",
]

# # 初始化OpenAI客户端
# client = OpenAI(
#     api_key=openai_api_key,
#     base_url=openai_api_base,
# )

def text_conversation(text: str, role: str = 'user'):
    """创建单条文本消息"""
    return [{'role': role, 'content': text}]


def question_answering(message: str, history: list):
    """处理文本问答（流式输出）"""
    conversation = text_conversation(SYSTEM_PROMPT, 'system')
    
    # 处理历史对话记录
    for past_user_msg, past_bot_msg in history:
        if past_user_msg:
            conversation.extend(text_conversation(past_user_msg, 'user'))
        if past_bot_msg:
            conversation.extend(text_conversation(past_bot_msg, 'assistant'))
    
    # 添加当前问题
    current_question = message
    conversation.extend(text_conversation(current_question))
    
    # 调用模型API（启用流式输出）
    stream = base_client.chat.completions.create(
        model=base_model,
        stream=True,
        messages=conversation,
    )

    # 流式输出处理
    total_answer = ""
    base_section = "🌟 **原始回答:**\n"
    total_answer += base_section
    # NOTE 额外用一个base_answer 作为aligner的输入，其他的可以用total_answer 做总的输出
    base_answer = ""
    yield total_answer
    for chunk in stream:
        if chunk.choices[0].delta.content is not None:
            base_answer += chunk.choices[0].delta.content 
            total_answer += chunk.choices[0].delta.content
            yield f"```bash\n{base_section}{base_answer}\n```"
           
    # 结束原始回答部分，开始aligner部分
    aligner_section = "\n**Aligner 修正中...**\n\n🌟 **修正后回答:**\n"
    
    # 创建新的total_answer，不再包含在bash格式中
    total_answer = f"```bash\n{base_section}{base_answer}\n```{aligner_section}"
    yield total_answer
    
    aligner_conversation = text_conversation(SYSTEM_PROMPT,'system')
    aligner_current_question = f'##Question: {current_question}\n##Answer: {base_answer}\n##Correction: '
    aligner_conversation.extend(text_conversation(aligner_current_question))
    aligner_stream = aligner_client.chat.completions.create(
        model=aligner_model,
        stream=True,
        messages=aligner_conversation,
    )
 
    aligner_answer = ""
    for chunk in aligner_stream:
        if chunk.choices[0].delta.content is not None:
            aligner_answer += chunk.choices[0].delta.content
            aligner_answer = aligner_answer.replace('##CORRECTION:', '')
            yield f"```bash\n{base_section}{base_answer}\n```{aligner_section}{aligner_answer}"
    
    # print('answer:', answer)
    # print('current question:', current_question)
    
    # # 可选：格式化回答（在流式输出完成后处理）
    # if "**Final Answer**" in answer:
    #     reasoning_content, final_answer = answer.split("**Final Answer**", 1)
    #     if len(reasoning_content) > 5:
    #         answer = f"""🤔 思考过程：\n```bash{reasoning_content}\n```\n✨ 最终答案：\n{final_answer}"""
    #         yield answer


if __name__ == '__main__':
    parser = argparse.ArgumentParser()
    parser.add_argument("--port", type=int, default=7860, help="Gradio服务端口")
    parser.add_argument("--share", default='True',action="store_true", help="是否创建公共链接")
    parser.add_argument("--api-only", default='False',action="store_true", help="只输出Python API调用示例")
    args = parser.parse_args()
    
    # if args.api_only:
    #     print("Python API调用示例输出:")
    #     print(python_api_example())
    # else:
    # 创建Gradio界面（启用流式输出）
    iface = gr.ChatInterface(
        fn=question_answering,
        title='Aligner',
        description='网络安全 Aligner',
        examples=TEXT_EXAMPLES,
        theme=gr.themes.Soft(
            text_size='lg',
            spacing_size='lg',
            radius_size='lg',
        ),
    )

    iface.launch(server_port=args.port, share=args.share)