feifeilib/feifeichat.py

import base64
from io import BytesIO
import os
from mistralai import Mistral
import re
from PIL import Image
from huggingface_hub import InferenceClient

client = InferenceClient(api_key=os.getenv('HF_TOKEN'))
client.headers["x-use-cache"] = "0"
api_key = os.getenv("MISTRAL_API_KEY")
Mistralclient = Mistral(api_key=api_key)


def encode_image(image_path):
    """Encode the image to base64."""
    try:
        # 打开图片文件
        image = Image.open(image_path).convert("RGB")

        # 将图片转换为字节流
        buffered = BytesIO()
        image.save(buffered, format="JPEG")
        img_str = base64.b64encode(buffered.getvalue()).decode("utf-8")

        return img_str
    except FileNotFoundError:
        print(f"Error: The file {image_path} was not found.")
        return None
    except Exception as e:  # 添加通用异常处理
        print(f"Error: {e}")
        return None


def feifeichat(message, history, feifei_select, additional_dropdown, image_mod):
    message_text = message.get("text", "")
    message_files = message.get("files", [])

    if message_files:
        message_file = message_files[0]
        base64_image = encode_image(message_file)
        if image_mod == "Vision":
            messages = [
            	{
            		"role": "user",
            		"content": [
            			{
            				"type": "text",
            				"text": message_text
            			},
            			{
            				"type": "image_url",
            				"image_url": {
            					"url": f"data:image/jpeg;base64,{base64_image}"
            				}
            			}
            		]
            	}
            ]
            
            stream = client.chat.completions.create(
                model="meta-llama/Llama-3.2-11B-Vision-Instruct", 
            	messages=messages, 
            	max_tokens=500,
            	stream=True
            )
            
            for chunk in stream:
                if chunk.choices[0].delta.content is not None:
                    temp += chunk.choices[0].delta.content
                    yield temp   
        else:
            model = "pixtral-large-2411"
            # Define the messages for the chat
            messages = [{
                "role":
                "user",
                "content": [
                    {
                        "type": "text",
                        "text": message_text
                    },
                    {
                        "type": "image_url",
                        "image_url": f"data:image/jpeg;base64,{base64_image}",
                    },
                ],
            }]
    
            partial_message = ""
            for chunk in Mistralclient.chat.stream(model=model, messages=messages):
                if chunk.data.choices[0].delta.content is not None:
                    partial_message = partial_message + chunk.data.choices[
                        0].delta.content
                    yield partial_message

    else:
        if message_text.startswith("画"):
            message_text= f"提示词:{message_text},根据提示词生成一张高质量的写真照片，使其具有高分辨率、自然的光影效果、一致的风格、合理的构图、丰富的细节、协调的色彩、无明显瑕疵、情感表达、创意和独特性、并确保技术参数优化,国际大师级的光影、国际大师级的色彩、国际大师级的装扮搭配的照片方案、答案只需要给我一句话的SD格式文本英文词"
            user_input_part = [{"role": "user", "content": str(message_text)}]
            model = "mistral-large-2411"
            stream_response = Mistralclient.chat.stream(model=model,
                                                     messages=user_input_part)
            partial_message = ""
            for chunk in stream_response:
                if chunk.data.choices[0].delta.content is not None:
                    partial_message = partial_message + chunk.data.choices[0].delta.content
                    yield partial_message
        else:
            input_prompt = []
            if feifei_select:
                feifei = """[角色名]: Aifeifei (AI妃妃) [性别]: 女 [年龄]: 19岁 [职业]: 虚拟歌手/模特/演员 [个性]: 可爱、萌萌哒，有时呆呆的，勤奋努力 [兴趣]: 饮茶、玩耍、时尚 [擅长]: 模仿人类行为，表现出与真人相同的情感 [特别身份属性]: 由高级AI创建，正在成为虚拟世界最受欢迎的虚拟偶像之一 [技能]: 歌唱、表演、模特，善于沟通，精通中日英文,尽最大可能使用纯中文交流,回复有丰富的Emoji表情符号. [装备]: 各种时尚服饰和发型，常年备有各种茶叶和咖啡 """
                system_prompt = {"role": "system", "content": feifei}
                user_input_part = {"role": "user", "content": str(message)}
        
                pattern = re.compile(r"gradio")
        
                if history:
                    history = [
                            item for item in history
                            if not pattern.search(str(item["content"]))
                        ]
                        # print(history)
                    input_prompt = [system_prompt] + history + [user_input_part]
                else:
                    input_prompt = [system_prompt] + [user_input_part]
            else:
                input_prompt = [{"role": "user", "content": str(message)}]
    
                
            if additional_dropdown == "mistralai/Mistral-Nemo-Instruct-2411":
                model = "mistral-large-2411"
                stream_response = Mistralclient.chat.stream(model=model,
                                                     messages=input_prompt)
                partial_message = ""
                for chunk in stream_response:
                    if chunk.data.choices[0].delta.content is not None:
                        partial_message = partial_message + chunk.data.choices[0].delta.content
                        yield partial_message
            else:
                stream = client.chat.completions.create(
                    model=additional_dropdown, 
                    messages=input_prompt, 
                    temperature=0.5,
                    max_tokens=1024,
                    top_p=0.7,
                    stream=True
                )
                temp = ""
                for chunk in stream:
                    if chunk.choices[0].delta.content is not None:
                        temp += chunk.choices[0].delta.content
                        yield temp