app.py

from gradio_client import Client
client = Client("https://svjack-entity-property-extractor-zh.hf.space")

import pandas as pd
import numpy as np
import os
import re

from langchain.vectorstores import FAISS
from langchain.embeddings.huggingface import HuggingFaceEmbeddings
from langchain import chains
from rapidfuzz import fuzz

import pandas as pd

from haystack.components.generators.chat import HuggingFaceTGIChatGenerator
from haystack.dataclasses import ChatMessage
import pandas as pd
import numpy as np

from huggingface_hub import snapshot_download

if not os.path.exists("genshin_book_chunks_with_qa_sp"):
    path = snapshot_download(
        repo_id="svjack/genshin_book_chunks_with_qa_sp",
        repo_type="dataset",
        local_dir="genshin_book_chunks_with_qa_sp",
        local_dir_use_symlinks = False
    )

if not os.path.exists("bge_small_book_chunks_prebuld"):
    path = snapshot_download(
        repo_id="svjack/bge_small_book_chunks_prebuld",
        repo_type="dataset",
        local_dir="bge_small_book_chunks_prebuld",
        local_dir_use_symlinks = False
    )

model_id = "mistralai/Mistral-7B-Instruct-v0.2"
HF_TOKEN = os.environ.get("HF_READ_TOKEN")
tgi_chat_generator = HuggingFaceTGIChatGenerator(model=model_id, token=HF_TOKEN,
                                        #stop_words = [".",  "。"]
                                        )
tgi_chat_generator.warm_up()

def chat_messages(message, history,
    max_length = 128, show_process = False):
    flatten_history = []
    for a, b in history:
        flatten_history.append(
                #chatglm_cpp.ChatMessage(role="user", content=a)
                ChatMessage.from_user(a)
            )
        flatten_history.append(
                #chatglm_cpp.ChatMessage(role="assistant", content=b)
                ChatMessage.from_assistant(b)
            )
    response = tgi_chat_generator.run(
    flatten_history + [
    ChatMessage.from_user(message)
    ]
    , generation_kwargs={"max_new_tokens": max_length})
    #print(response["replies"][0].content)
    yield response["replies"][0].content

'''
query = "警察是如何破获邪恶计划的？" ## 警 执律 盗
k = 10
uniform_recall_docs_to_pairwise_cos(
    query,
    docsearch_bge_loaded.similarity_search_with_score(query, k = k, ),
    bge_book_embeddings
)
'''
def uniform_recall_docs_to_pairwise_cos(query ,doc_list, embeddings):
    assert type(doc_list) == type([])
    from langchain.evaluation import load_evaluator
    from langchain.evaluation import EmbeddingDistance
    hf_evaluator = load_evaluator("pairwise_embedding_distance", embeddings=embeddings,
                              distance_metric = EmbeddingDistance.COSINE)
    return sorted(pd.Series(doc_list).map(lambda x: x[0].page_content).map(lambda x:
        (x ,hf_evaluator.evaluate_string_pairs(prediction=query, prediction_b=x)["score"])
    ).values.tolist(), key = lambda t2: t2[1])

'''
sort_by_kw("深渊使徒", book_df)["content_chunks_formatted"].head(5).values.tolist() ### 深渊
'''
def sort_by_kw(kw, book_df):
    req = book_df.copy()
    req["sim_score"] = req.apply(
    lambda x:
    max(map(lambda y: fuzz.ratio(y, kw) ,eval(x["person"]) + eval(x["locate"]) + eval(x["locate"]))) if \
    eval(x["person"]) + eval(x["locate"]) + eval(x["locate"]) else 0
    , axis = 1
)
    req = req.sort_values(by = "sim_score", ascending = False)
    return req

def recall_chuncks(query, docsearch, embedding, book_df,
    sparse_threshold = 30,
    dense_top_k = 10,
    rerank_by = "emb",
):
    sparse_output = sort_by_kw(query, book_df)[["content_chunks_formatted", "sim_score"]]
    sparse_output_list = sparse_output[
        sparse_output["sim_score"] >= sparse_threshold
    ]["content_chunks_formatted"].values.tolist()
    dense_output = uniform_recall_docs_to_pairwise_cos(
        query,
        docsearch.similarity_search_with_score(query, k = dense_top_k,),
        embedding
    )
    for chunck, score in dense_output:
        if chunck not in sparse_output_list:
            sparse_output_list.append(chunck)
    if rerank_by == "emb":
        from langchain.evaluation import load_evaluator
        from langchain.evaluation import EmbeddingDistance
        hf_evaluator = load_evaluator("pairwise_embedding_distance", embeddings=embedding,
                                  distance_metric = EmbeddingDistance.COSINE)
        return pd.Series(sorted(pd.Series(sparse_output_list).map(lambda x:
            (x ,hf_evaluator.evaluate_string_pairs(prediction=query, prediction_b=x)["score"])
        ).values.tolist(), key = lambda t2: t2[1])).map(lambda x: x[0]).values.tolist()
    else:
        sparse_output_list = sorted(sparse_output_list, key = lambda x: fuzz.ratio(x, query), reverse = True)
    return sparse_output_list

def reduce_list_by_order(text_list, as_text = False):
    if not text_list:
        return
    df = pd.DataFrame(
        list(map(lambda x: (x.split("\n")[0], x.split("\n")[1], "\n".join(x.split("\n")[2:])), text_list))
    ).groupby([0, 1])[2].apply(list).map(lambda x: sorted(x, key = len, reverse=True)).map(
        "\n\n".join
    ).reset_index()
    d = dict(df.apply(lambda x: ((x.iloc[0], x.iloc[1]), x.iloc[2]), axis = 1).values.tolist())
    #return df
    order_list = []
    for x in text_list:
        a, b = x.split("\n")[0], x.split("\n")[1]
        if not order_list:
            order_list = [[a, [b]]]
        elif a in list(map(lambda t2: t2[0], order_list)):
            order_list[list(map(lambda t2: t2[0], order_list)).index(a)][1].append(b)
        elif a not in list(map(lambda t2: t2[0], order_list)):
            order_list.append([a, [b]])
    df = pd.DataFrame(pd.DataFrame(order_list).explode(1).dropna().apply(
        lambda x: (x.iloc[0], x.iloc[1], d[(x.iloc[0], x.iloc[1])]), axis = 1
    ).values.tolist()).drop_duplicates()
    if as_text:
        return "\n\n".join(
            df.apply(lambda x: "{}\n{}\n{}".format(x.iloc[0], x.iloc[1], x.iloc[2]), axis = 1).values.tolist()
        )
    return df

def build_gpt_prompt(query, docsearch, embedding, book_df, max_context_length = 4090):
    l = recall_chuncks(query, docsearch, embedding, book_df)
    context = reduce_list_by_order(l, as_text = True)
    context_l = []
    for ele in context.split("\n"):
        if sum(map(len, context_l)) >= max_context_length:
            break
        context_l.append(ele)
    context = "\n".join(context_l).strip()
    template = """使用以下上下文来回答最后的问题。如果你不知道答案，就说你不知道，不要试图编造答案。尽量使答案简明扼要。总是在回答的最后说“谢谢你的提问！”。

{context}

问题: {question}
有用的回答:"""
    return template.format(
        **{
            "context": context,
            "question": query
        }
    )

def collect_prompt_to_hist_list(prompt, add_assistant = False):
    l = pd.Series(prompt.split("\n\n")).map(lambda x: x.strip()).values.tolist()
    ll = []
    for ele in l:
        if not ll:
            ll.append(ele)
        else:
            if ele.startswith("文章标题：") or ele.startswith("问题:"):
                ll.append(ele)
            else:
                ll[-1] += ("\n\n" + ele)
    if add_assistant:
        ll_ = []
        for i in range(len(ll)):
            if i == 0:
                ll_.append((ll[i], "好的。"))
            elif i < len(ll) - 1:
                ll_.append((ll[i], "我读懂了。"))
            else:
                ll_.append((ll[i], ""))
        return ll_
    else:
        return ll

def row_to_content_ask(r):
    question = r["question"]
    content_list = r["content_list"]
    assert type(content_list) == type([])
    content_prompt_list = pd.Series(content_list).map(
        lambda x:  '''
    {}\n从上面的相关的叙述中抽取包含"{}"中词汇的相关语段。
    '''.format(x, question).strip()
    ).values.tolist()
    return content_prompt_list

def entity_extractor_by_hf(query,
    show_process = False, max_length = 512,
    return_out_text = False,
    ):
    import re
    hist = [
    ['请从下面的句子中提取实体和属性。不需要进行进一步解释。', '好的。'],
     ['问题：宁波在哪个省份？', '实体：宁波 属性：省份'],
     ['问题：中国的货币是什么？', '实体：中国 属性：货币'],
     ['问题：百慕大三角在什么地方？', '实体：百慕大三角 属性：地方'],
     ['问题：谁是最可爱的人？', "实体：人 属性：可爱"],
     ['问题：黄河的拐点在哪里？', "实体：黄河 属性：拐点"],
     #['问题：魔神归终在哪里？', '实体：归终 属性：哪里'],
     #["玉米的引进时间是什么时候？", ""]
     ]

    out_text = chat_messages("问题：{}".format(query),
        hist,
    )
    req = ""
    for ele in out_text:
        req = ele
    out_text = req

    if return_out_text:
        return out_text
    e_list = re.findall(r"实体(.*?)属性", out_text.replace("\n", " "))
    if e_list:
        return re.findall(u"[\u4e00-\u9fa5]+" ,e_list[0])
    return None

def unzip_string(x, size = 2):
    if len(x) <= size:
        return [x]
    req = []
    for i in range(len(x) - size + 1):
        req.append(x[i: i + size])
    return req

def entity_extractor_by_adapter(x):
    import json
    result = client.predict(
    		x,	# str  in 'question' Textbox component
    		api_name="/predict"
    )
    with open(result, "r") as f:
        req = json.load(f)
    req_list = req.get("E-TAG", [])
    req_ = []
    for ele in req_list:
        for x in unzip_string(ele, 2):
            if x not in req_:
                req_.append(x)
    return req_

##### maybe 0.5
def query_content_ask_func(question, content_list,
    setfit_model, show_process = False, max_length = 1024):
    ask_list = row_to_content_ask(
        {
            "question": question,
            "content_list": content_list
        }
    )
    #return ask_list
    req = []
    for prompt in ask_list:

        out_text = chat_messages(prompt + "如果没有提到相关内容，请回答不知道。使用中文进行回答，不要包含任何英文。",
                [], show_process = show_process, max_length = max_length
            )
        req_ = ""
        for ele in out_text:
            req_ = ele
        out_text = req_

        req.append(out_text)
    d = {
            "question": question,
            "content_list": content_list
        }
    assert len(req) == len(ask_list)
    d["question_content_relate_list"] = req
    d["relate_prob_list"] = setfit_model.predict_proba(
               req
        ).numpy()[:, 1].tolist()
    return d

def build_relate_ask_list(query, docsearch_bge_loaded, bge_book_embeddings, book_df,
                          setfit_model, as_content_score_df = True,
                          show_process = False, add_relate_entities = False,
                          max_length = 1024):
    prompt = build_gpt_prompt(query, docsearch_bge_loaded, bge_book_embeddings, book_df)
    prompt_list = collect_prompt_to_hist_list(prompt)
    question = prompt_list[-1].split("\n")[0]
    content_list = prompt_list[1:-1]

    d = query_content_ask_func(question, content_list,
            setfit_model, show_process = show_process)

    #entity_list = entity_extractor_by_hf(query,
    # show_process = show_process, max_length = max_length)
    entity_list = entity_extractor_by_adapter(query)
    if type(entity_list) != type([]):
        entity_list = []

    d["in_content_entity_list"] = list(map(lambda x:
        list(filter(lambda e: e in x, entity_list))
    , d["content_list"]))

    if add_relate_entities:
        relate_content_entity_list = [[]] * len(content_list)

        for entity in entity_list:
            entity_content_score_d = query_content_ask_func(entity, d["content_list"],
                setfit_model, show_process = show_process)
            lookup_df = pd.DataFrame(
                list(zip(*[entity_content_score_d["content_list"],
                entity_content_score_d["relate_prob_list"]]))
            )
            for ii, (i, r) in enumerate(lookup_df.iterrows()):
                if r.iloc[1] >= 0.5 and entity not in relate_content_entity_list[ii]:
                    #relate_content_entity_list[ii].append(entity)
                    relate_content_entity_list[ii] = relate_content_entity_list[ii] + [entity]

        d["relate_content_entity_list"] = relate_content_entity_list

    if as_content_score_df:
        if add_relate_entities:
            df = pd.concat(
                [
                    pd.Series(d["content_list"]).map(lambda x: x.strip()),
                    pd.Series(d["in_content_entity_list"]),
                    pd.Series(d["relate_content_entity_list"]),
                    pd.Series(d["question_content_relate_list"]).map(lambda x: x.strip()),
                    pd.Series(d["relate_prob_list"])
                ], axis = 1
            )
            df.columns = ["content", "entities", "relate_entities", "relate_eval_str", "score"]
        else:
            df = pd.concat(
                [
                    pd.Series(d["content_list"]).map(lambda x: x.strip()),
                    pd.Series(d["in_content_entity_list"]),
                    #pd.Series(d["relate_content_entity_list"]),
                    pd.Series(d["question_content_relate_list"]).map(lambda x: x.strip()),
                    pd.Series(d["relate_prob_list"])
                ], axis = 1
            )
            df.columns = ["content", "entities", "relate_eval_str", "score"]
        req = []
        entities_num_list = df["entities"].map(len).drop_duplicates().dropna().sort_values(ascending = False).\
            values.tolist()
        for e_num in entities_num_list:
            req.append(
            df[
                df["entities"].map(lambda x: len(x) == e_num)
            ].sort_values(by = "score", ascending = False)
            )
        return pd.concat(req, axis = 0)
        #df = df.sort_values(by = "score", ascending = False)
        #return df
    return d

def run_all(query, docsearch_bge_loaded, bge_book_embeddings, book_df,
                          setfit_model, only_return_prompt = False,
                          use_gf4_on_qa = False):
    df = build_relate_ask_list(query, docsearch_bge_loaded, bge_book_embeddings, book_df,
                              setfit_model, show_process=False)
    info_list = df[
        df.apply(
            lambda x: x["score"] >= 0.5 and bool(x["entities"]), axis = 1
        )
    ].values.tolist()
    if not info_list:
        return df, info_list, "没有相关内容，谢谢你的提问。"
    prompt = '''
问题: {}
根据下面的内容回答上面的问题，如果无法根据内容确定答案，请回答不知道。
{}
'''.format(query, "\n\n".join(pd.Series(info_list).map(lambda x: x[0]).values.tolist()))
    if only_return_prompt:
        return df, info_list, prompt

    q_head = "\n".join(prompt.split("\n")[:2])
    c_tail = "\n".join(prompt.split("\n")[2:])[:4000]
    if use_gf4_on_qa:
        out_text = chat_messages_gf4(
            c_tail + "\n" + q_head.replace("下面的内容回答上面的问题", "上面的内容回答问题") + "用中文回答问题。",
            [], show_process = False, max_length = 512
        )
    else:
        out_text = chat_messages(
            c_tail + "\n" + q_head.replace("下面的内容回答上面的问题", "上面的内容回答问题") + "用中文回答问题。",
            [], show_process = False, max_length = 512
        )
    req_ = ""
    for ele in out_text:
        req_ = ele
    out_text = req_

    return df, info_list, out_text

import gradio as gr

#book_df = pd.read_csv("genshin_book_chunks_with_qa_sp.csv")
book_df = pd.read_csv("genshin_book_chunks_with_qa_sp/genshin_book_chunks_with_qa_sp.csv")
book_df["content_chunks"].dropna().drop_duplicates().shape

book_df["content_chunks_formatted"] = book_df.apply(
        lambda x: "文章标题：{}\n子标题：{}\n内容：{}".format(x["title"], x["sub_title"], x["content_chunks"]),
        axis = 1
    )

texts = book_df["content_chunks_formatted"].dropna().drop_duplicates().values.tolist()

#embedding_path = "bge-small-book-qa/"
embedding_path = "svjack/bge-small-book-qa"
bge_book_embeddings = HuggingFaceEmbeddings(model_name=embedding_path)
docsearch_bge_loaded = FAISS.load_local("bge_small_book_chunks_prebuld/", bge_book_embeddings,
                                       allow_dangerous_deserialization = True
                                       )

from setfit import SetFitModel
#setfit_model = SetFitModel.from_pretrained("setfit_info_cls")
setfit_model = SetFitModel.from_pretrained("svjack/setfit_info_cls")

with gr.Blocks() as demo:
    title = gr.HTML(
            """<h1 align="center"> <font size="+3"> Genshin Impact Book QA Haystack Demo 📈 </font> </h1>""",
            elem_id="title",
    )

    with gr.Column():
        with gr.Row():
            query = gr.Text(label = "输入问题：", lines = 1, interactive = True, scale = 5.0)
            run_button = gr.Button("得到答案")
        output = gr.Text(label = "回答：", lines = 5, interactive = True)
        recall_items = gr.JSON(label = "召回相关内容", interactive = False)

    with gr.Row():
        gr.Examples(
            [
             '丘丘人有哪些生活习惯？',
             '岩王帝君和归终是什么关系？',
             '盐之魔神的下场是什么样的？',
             #'归终是谁？',
             '岩王帝君是一个什么样的人？',
             #'铳枪手的故事内容是什么样的？',
             '白夜国的子民遭遇了什么？',
             '大蛇居住在哪里？',
             '珊瑚宫有哪些传说？',
             '灵光颂的内容是什么样的？',
             '连心珠讲了一件什么事情？',
             '梓心是谁？',
             #'枫丹有哪些故事？',
             '璃月有哪些故事？',
             '轻策庄有哪些故事？',
             '瑶光滩有哪些故事？',
             '稻妻有哪些故事？',
             '海祇岛有哪些故事？',
             '须弥有哪些故事？',
             '蒙德有哪些故事？',
             '璃月有哪些奇珍异宝？',
             '狸猫和天狗是什么关系？',
            ],
            inputs = query,
            label = "被书目内容包含的问题"
        )
    with gr.Row():
        gr.Examples(
            [
             '爱丽丝女士是可莉的妈妈吗？',
             '摘星崖是什么样的？',
             '丘丘人使用的是什么文字？',
             '深渊使徒哪里来的？',
             '发条机关可以用来做什么？',
             '那先朱那做了什么？',
            ],
            inputs = query,
            label = "没有被书目明确提到的问题"
        )

    run_button.click(lambda x:
        run_all(x, docsearch_bge_loaded, bge_book_embeddings, book_df,
                                setfit_model = setfit_model)[1:],
        query, [recall_items, output]
    )

demo.queue(max_size=4, concurrency_count=1).launch(debug=True, show_api=False, share = True)