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from toolbox import update_ui, get_conf, trimmed_format_exc, get_max_token, Singleton
import threading
import os
import logging

def input_clipping(inputs, history, max_token_limit):
    import numpy as np
    from request_llms.bridge_all import model_info
    enc = model_info["gpt-3.5-turbo"]['tokenizer']
    def get_token_num(txt): return len(enc.encode(txt, disallowed_special=()))

    mode = 'input-and-history'
    # 当 输入部分的token占比 小于 全文的一半时,只裁剪历史
    input_token_num = get_token_num(inputs)
    if input_token_num < max_token_limit//2: 
        mode = 'only-history'
        max_token_limit = max_token_limit - input_token_num

    everything = [inputs] if mode == 'input-and-history' else ['']
    everything.extend(history)
    n_token = get_token_num('\n'.join(everything))
    everything_token = [get_token_num(e) for e in everything]
    delta = max(everything_token) // 16 # 截断时的颗粒度
        
    while n_token > max_token_limit:
        where = np.argmax(everything_token)
        encoded = enc.encode(everything[where], disallowed_special=())
        clipped_encoded = encoded[:len(encoded)-delta]
        everything[where] = enc.decode(clipped_encoded)[:-1]    # -1 to remove the may-be illegal char
        everything_token[where] = get_token_num(everything[where])
        n_token = get_token_num('\n'.join(everything))

    if mode == 'input-and-history':
        inputs = everything[0]
    else:
        pass
    history = everything[1:]
    return inputs, history

def request_gpt_model_in_new_thread_with_ui_alive(
        inputs, inputs_show_user, llm_kwargs, 
        chatbot, history, sys_prompt, refresh_interval=0.2,
        handle_token_exceed=True, 
        retry_times_at_unknown_error=2,
        ):
    """
    Request GPT model,请求GPT模型同时维持用户界面活跃。

    输入参数 Args (以_array结尾的输入变量都是列表,列表长度为子任务的数量,执行时,会把列表拆解,放到每个子线程中分别执行):
        inputs (string): List of inputs (输入)
        inputs_show_user (string): List of inputs to show user(展现在报告中的输入,借助此参数,在汇总报告中隐藏啰嗦的真实输入,增强报告的可读性)
        top_p (float): Top p value for sampling from model distribution (GPT参数,浮点数)
        temperature (float): Temperature value for sampling from model distribution(GPT参数,浮点数)
        chatbot: chatbot inputs and outputs (用户界面对话窗口句柄,用于数据流可视化)
        history (list): List of chat history (历史,对话历史列表)
        sys_prompt (string): List of system prompts (系统输入,列表,用于输入给GPT的前提提示,比如你是翻译官怎样怎样)
        refresh_interval (float, optional): Refresh interval for UI (default: 0.2) (刷新时间间隔频率,建议低于1,不可高于3,仅仅服务于视觉效果)
        handle_token_exceed:是否自动处理token溢出的情况,如果选择自动处理,则会在溢出时暴力截断,默认开启
        retry_times_at_unknown_error:失败时的重试次数

    输出 Returns:
        future: 输出,GPT返回的结果
    """
    import time
    from concurrent.futures import ThreadPoolExecutor
    from request_llms.bridge_all import predict_no_ui_long_connection
    # 用户反馈
    chatbot.append([inputs_show_user, ""])
    yield from update_ui(chatbot=chatbot, history=[]) # 刷新界面
    executor = ThreadPoolExecutor(max_workers=16)
    mutable = ["", time.time(), ""]
    # 看门狗耐心
    watch_dog_patience = 5
    # 请求任务
    def _req_gpt(inputs, history, sys_prompt):
        retry_op = retry_times_at_unknown_error
        exceeded_cnt = 0
        while True:
            # watchdog error
            if len(mutable) >= 2 and (time.time()-mutable[1]) > watch_dog_patience: 
                raise RuntimeError("检测到程序终止。")
            try:
                # 【第一种情况】:顺利完成
                result = predict_no_ui_long_connection(
                    inputs=inputs, llm_kwargs=llm_kwargs,
                    history=history, sys_prompt=sys_prompt, observe_window=mutable)
                return result
            except ConnectionAbortedError as token_exceeded_error:
                # 【第二种情况】:Token溢出
                if handle_token_exceed:
                    exceeded_cnt += 1
                    # 【选择处理】 尝试计算比例,尽可能多地保留文本
                    from toolbox import get_reduce_token_percent
                    p_ratio, n_exceed = get_reduce_token_percent(str(token_exceeded_error))
                    MAX_TOKEN = get_max_token(llm_kwargs)
                    EXCEED_ALLO = 512 + 512 * exceeded_cnt
                    inputs, history = input_clipping(inputs, history, max_token_limit=MAX_TOKEN-EXCEED_ALLO)
                    mutable[0] += f'[Local Message] 警告,文本过长将进行截断,Token溢出数:{n_exceed}。\n\n'
                    continue # 返回重试
                else:
                    # 【选择放弃】
                    tb_str = '```\n' + trimmed_format_exc() + '```'
                    mutable[0] += f"[Local Message] 警告,在执行过程中遭遇问题, Traceback:\n\n{tb_str}\n\n"
                    return mutable[0] # 放弃
            except:
                # 【第三种情况】:其他错误:重试几次
                tb_str = '```\n' + trimmed_format_exc() + '```'
                print(tb_str)
                mutable[0] += f"[Local Message] 警告,在执行过程中遭遇问题, Traceback:\n\n{tb_str}\n\n"
                if retry_op > 0:
                    retry_op -= 1
                    mutable[0] += f"[Local Message] 重试中,请稍等 {retry_times_at_unknown_error-retry_op}/{retry_times_at_unknown_error}:\n\n"
                    if ("Rate limit reached" in tb_str) or ("Too Many Requests" in tb_str):
                        time.sleep(30)
                    time.sleep(5)
                    continue # 返回重试
                else:
                    time.sleep(5)
                    return mutable[0] # 放弃

    # 提交任务
    future = executor.submit(_req_gpt, inputs, history, sys_prompt)
    while True:
        # yield一次以刷新前端页面
        time.sleep(refresh_interval)
        # “喂狗”(看门狗)
        mutable[1] = time.time()
        if future.done():
            break
        chatbot[-1] = [chatbot[-1][0], mutable[0]]
        yield from update_ui(chatbot=chatbot, history=[]) # 刷新界面

    final_result = future.result()
    chatbot[-1] = [chatbot[-1][0], final_result]
    yield from update_ui(chatbot=chatbot, history=[]) # 如果最后成功了,则删除报错信息
    return final_result

def can_multi_process(llm):
    if llm.startswith('gpt-'): return True
    if llm.startswith('api2d-'): return True
    if llm.startswith('azure-'): return True
    if llm.startswith('spark'): return True
    if llm.startswith('zhipuai'): return True
    return False

def request_gpt_model_multi_threads_with_very_awesome_ui_and_high_efficiency(
        inputs_array, inputs_show_user_array, llm_kwargs, 
        chatbot, history_array, sys_prompt_array, 
        refresh_interval=0.2, max_workers=-1, scroller_max_len=30,
        handle_token_exceed=True, show_user_at_complete=False,
        retry_times_at_unknown_error=2,
        ):
    """
    Request GPT model using multiple threads with UI and high efficiency
    请求GPT模型的[多线程]版。
    具备以下功能:
        实时在UI上反馈远程数据流
        使用线程池,可调节线程池的大小避免openai的流量限制错误
        处理中途中止的情况
        网络等出问题时,会把traceback和已经接收的数据转入输出

    输入参数 Args (以_array结尾的输入变量都是列表,列表长度为子任务的数量,执行时,会把列表拆解,放到每个子线程中分别执行):
        inputs_array (list): List of inputs (每个子任务的输入)
        inputs_show_user_array (list): List of inputs to show user(每个子任务展现在报告中的输入,借助此参数,在汇总报告中隐藏啰嗦的真实输入,增强报告的可读性)
        llm_kwargs: llm_kwargs参数
        chatbot: chatbot (用户界面对话窗口句柄,用于数据流可视化)
        history_array (list): List of chat history (历史对话输入,双层列表,第一层列表是子任务分解,第二层列表是对话历史)
        sys_prompt_array (list): List of system prompts (系统输入,列表,用于输入给GPT的前提提示,比如你是翻译官怎样怎样)
        refresh_interval (float, optional): Refresh interval for UI (default: 0.2) (刷新时间间隔频率,建议低于1,不可高于3,仅仅服务于视觉效果)
        max_workers (int, optional): Maximum number of threads (default: see config.py) (最大线程数,如果子任务非常多,需要用此选项防止高频地请求openai导致错误)
        scroller_max_len (int, optional): Maximum length for scroller (default: 30)(数据流的显示最后收到的多少个字符,仅仅服务于视觉效果)
        handle_token_exceed (bool, optional): (是否在输入过长时,自动缩减文本)
        handle_token_exceed:是否自动处理token溢出的情况,如果选择自动处理,则会在溢出时暴力截断,默认开启
        show_user_at_complete (bool, optional): (在结束时,把完整输入-输出结果显示在聊天框)
        retry_times_at_unknown_error:子任务失败时的重试次数

    输出 Returns:
        list: List of GPT model responses (每个子任务的输出汇总,如果某个子任务出错,response中会携带traceback报错信息,方便调试和定位问题。)
    """
    import time, random
    from concurrent.futures import ThreadPoolExecutor
    from request_llms.bridge_all import predict_no_ui_long_connection
    assert len(inputs_array) == len(history_array)
    assert len(inputs_array) == len(sys_prompt_array)
    if max_workers == -1: # 读取配置文件
        try: max_workers = get_conf('DEFAULT_WORKER_NUM')
        except: max_workers = 8
        if max_workers <= 0: max_workers = 3
    # 屏蔽掉 chatglm的多线程,可能会导致严重卡顿
    if not can_multi_process(llm_kwargs['llm_model']):
        max_workers = 1
        
    executor = ThreadPoolExecutor(max_workers=max_workers)
    n_frag = len(inputs_array)
    # 用户反馈
    chatbot.append(["请开始多线程操作。", ""])
    yield from update_ui(chatbot=chatbot, history=[]) # 刷新界面
    # 跨线程传递
    mutable = [["", time.time(), "等待中"] for _ in range(n_frag)]

    # 看门狗耐心
    watch_dog_patience = 5

    # 子线程任务
    def _req_gpt(index, inputs, history, sys_prompt):
        gpt_say = ""
        retry_op = retry_times_at_unknown_error
        exceeded_cnt = 0
        mutable[index][2] = "执行中"
        detect_timeout = lambda: len(mutable[index]) >= 2 and (time.time()-mutable[index][1]) > watch_dog_patience
        while True:
            # watchdog error
            if detect_timeout(): raise RuntimeError("检测到程序终止。")
            try:
                # 【第一种情况】:顺利完成
                gpt_say = predict_no_ui_long_connection(
                    inputs=inputs, llm_kwargs=llm_kwargs, history=history, 
                    sys_prompt=sys_prompt, observe_window=mutable[index], console_slience=True
                )
                mutable[index][2] = "已成功"
                return gpt_say
            except ConnectionAbortedError as token_exceeded_error:
                # 【第二种情况】:Token溢出
                if handle_token_exceed:
                    exceeded_cnt += 1
                    # 【选择处理】 尝试计算比例,尽可能多地保留文本
                    from toolbox import get_reduce_token_percent
                    p_ratio, n_exceed = get_reduce_token_percent(str(token_exceeded_error))
                    MAX_TOKEN = get_max_token(llm_kwargs)
                    EXCEED_ALLO = 512 + 512 * exceeded_cnt
                    inputs, history = input_clipping(inputs, history, max_token_limit=MAX_TOKEN-EXCEED_ALLO)
                    gpt_say += f'[Local Message] 警告,文本过长将进行截断,Token溢出数:{n_exceed}。\n\n'
                    mutable[index][2] = f"截断重试"
                    continue # 返回重试
                else:
                    # 【选择放弃】
                    tb_str = '```\n' + trimmed_format_exc() + '```'
                    gpt_say += f"[Local Message] 警告,线程{index}在执行过程中遭遇问题, Traceback:\n\n{tb_str}\n\n"
                    if len(mutable[index][0]) > 0: gpt_say += "此线程失败前收到的回答:\n\n" + mutable[index][0]
                    mutable[index][2] = "输入过长已放弃"
                    return gpt_say # 放弃
            except:
                # 【第三种情况】:其他错误
                if detect_timeout(): raise RuntimeError("检测到程序终止。")
                tb_str = '```\n' + trimmed_format_exc() + '```'
                print(tb_str)
                gpt_say += f"[Local Message] 警告,线程{index}在执行过程中遭遇问题, Traceback:\n\n{tb_str}\n\n"
                if len(mutable[index][0]) > 0: gpt_say += "此线程失败前收到的回答:\n\n" + mutable[index][0]
                if retry_op > 0: 
                    retry_op -= 1
                    wait = random.randint(5, 20)
                    if ("Rate limit reached" in tb_str) or ("Too Many Requests" in tb_str):
                        wait = wait * 3
                        fail_info = "OpenAI绑定信用卡可解除频率限制 "
                    else:
                        fail_info = ""
                    # 也许等待十几秒后,情况会好转
                    for i in range(wait):
                        mutable[index][2] = f"{fail_info}等待重试 {wait-i}"; time.sleep(1)
                    # 开始重试
                    if detect_timeout(): raise RuntimeError("检测到程序终止。")
                    mutable[index][2] = f"重试中 {retry_times_at_unknown_error-retry_op}/{retry_times_at_unknown_error}"
                    continue # 返回重试
                else:
                    mutable[index][2] = "已失败"
                    wait = 5
                    time.sleep(5)
                    return gpt_say # 放弃

    # 异步任务开始
    futures = [executor.submit(_req_gpt, index, inputs, history, sys_prompt) for index, inputs, history, sys_prompt in zip(
        range(len(inputs_array)), inputs_array, history_array, sys_prompt_array)]
    cnt = 0
    while True:
        # yield一次以刷新前端页面
        time.sleep(refresh_interval)
        cnt += 1
        worker_done = [h.done() for h in futures]
        # 更好的UI视觉效果
        observe_win = []
        # 每个线程都要“喂狗”(看门狗)
        for thread_index, _ in enumerate(worker_done):
            mutable[thread_index][1] = time.time()
        # 在前端打印些好玩的东西
        for thread_index, _ in enumerate(worker_done):
            print_something_really_funny = "[ ...`"+mutable[thread_index][0][-scroller_max_len:].\
                replace('\n', '').replace('`', '.').replace(
                    ' ', '.').replace('<br/>', '.....').replace('$', '.')+"`... ]"
            observe_win.append(print_something_really_funny)
        # 在前端打印些好玩的东西
        stat_str = ''.join([f'`{mutable[thread_index][2]}`: {obs}\n\n' 
                            if not done else f'`{mutable[thread_index][2]}`\n\n' 
                            for thread_index, done, obs in zip(range(len(worker_done)), worker_done, observe_win)])
        # 在前端打印些好玩的东西
        chatbot[-1] = [chatbot[-1][0], f'多线程操作已经开始,完成情况: \n\n{stat_str}' + ''.join(['.']*(cnt % 10+1))]
        yield from update_ui(chatbot=chatbot, history=[]) # 刷新界面
        if all(worker_done):
            executor.shutdown()
            break

    # 异步任务结束
    gpt_response_collection = []
    for inputs_show_user, f in zip(inputs_show_user_array, futures):
        gpt_res = f.result()
        gpt_response_collection.extend([inputs_show_user, gpt_res])
    
    # 是否在结束时,在界面上显示结果
    if show_user_at_complete:
        for inputs_show_user, f in zip(inputs_show_user_array, futures):
            gpt_res = f.result()
            chatbot.append([inputs_show_user, gpt_res])
            yield from update_ui(chatbot=chatbot, history=[]) # 刷新界面
            time.sleep(0.5)
    return gpt_response_collection



def read_and_clean_pdf_text(fp):
    """
    这个函数用于分割pdf,用了很多trick,逻辑较乱,效果奇好

    **输入参数说明**
    - `fp`:需要读取和清理文本的pdf文件路径

    **输出参数说明**
    - `meta_txt`:清理后的文本内容字符串
    - `page_one_meta`:第一页清理后的文本内容列表

    **函数功能**
    读取pdf文件并清理其中的文本内容,清理规则包括:
    - 提取所有块元的文本信息,并合并为一个字符串
    - 去除短块(字符数小于100)并替换为回车符
    - 清理多余的空行
    - 合并小写字母开头的段落块并替换为空格
    - 清除重复的换行
    - 将每个换行符替换为两个换行符,使每个段落之间有两个换行符分隔
    """
    import fitz, copy
    import re
    import numpy as np
    from colorful import print亮黄, print亮绿
    fc = 0  # Index 0 文本
    fs = 1  # Index 1 字体
    fb = 2  # Index 2 框框
    REMOVE_FOOT_NOTE = True # 是否丢弃掉 不是正文的内容 (比正文字体小,如参考文献、脚注、图注等)
    REMOVE_FOOT_FFSIZE_PERCENT = 0.95 # 小于正文的?时,判定为不是正文(有些文章的正文部分字体大小不是100%统一的,有肉眼不可见的小变化)
    def primary_ffsize(l):
        """
        提取文本块主字体
        """
        fsize_statiscs = {}
        for wtf in l['spans']:
            if wtf['size'] not in fsize_statiscs: fsize_statiscs[wtf['size']] = 0
            fsize_statiscs[wtf['size']] += len(wtf['text'])
        return max(fsize_statiscs, key=fsize_statiscs.get)
        
    def ffsize_same(a,b):
        """
        提取字体大小是否近似相等
        """
        return abs((a-b)/max(a,b)) < 0.02

    with fitz.open(fp) as doc:
        meta_txt = []
        meta_font = []

        meta_line = []
        meta_span = []
        ############################## <第 1 步,搜集初始信息> ##################################
        for index, page in enumerate(doc):
            # file_content += page.get_text()
            text_areas = page.get_text("dict")  # 获取页面上的文本信息
            for t in text_areas['blocks']:
                if 'lines' in t:
                    pf = 998
                    for l in t['lines']:
                        txt_line = "".join([wtf['text'] for wtf in l['spans']])
                        if len(txt_line) == 0: continue
                        pf = primary_ffsize(l)
                        meta_line.append([txt_line, pf, l['bbox'], l])
                        for wtf in l['spans']: # for l in t['lines']:
                            meta_span.append([wtf['text'], wtf['size'], len(wtf['text'])])
                    # meta_line.append(["NEW_BLOCK", pf])
            # 块元提取                           for each word segment with in line                       for each line         cross-line words                          for each block
            meta_txt.extend([" ".join(["".join([wtf['text'] for wtf in l['spans']]) for l in t['lines']]).replace(
                '- ', '') for t in text_areas['blocks'] if 'lines' in t])
            meta_font.extend([np.mean([np.mean([wtf['size'] for wtf in l['spans']])
                             for l in t['lines']]) for t in text_areas['blocks'] if 'lines' in t])
            if index == 0:
                page_one_meta = [" ".join(["".join([wtf['text'] for wtf in l['spans']]) for l in t['lines']]).replace(
                    '- ', '') for t in text_areas['blocks'] if 'lines' in t]
                
        ############################## <第 2 步,获取正文主字体> ##################################
        try:
            fsize_statiscs = {}
            for span in meta_span:
                if span[1] not in fsize_statiscs: fsize_statiscs[span[1]] = 0
                fsize_statiscs[span[1]] += span[2]
            main_fsize = max(fsize_statiscs, key=fsize_statiscs.get)
            if REMOVE_FOOT_NOTE:
                give_up_fize_threshold = main_fsize * REMOVE_FOOT_FFSIZE_PERCENT
        except:
            raise RuntimeError(f'抱歉, 我们暂时无法解析此PDF文档: {fp}。')
        ############################## <第 3 步,切分和重新整合> ##################################
        mega_sec = []
        sec = []
        for index, line in enumerate(meta_line):
            if index == 0: 
                sec.append(line[fc])
                continue
            if REMOVE_FOOT_NOTE:
                if meta_line[index][fs] <= give_up_fize_threshold:
                    continue
            if ffsize_same(meta_line[index][fs], meta_line[index-1][fs]):
                # 尝试识别段落
                if meta_line[index][fc].endswith('.') and\
                    (meta_line[index-1][fc] != 'NEW_BLOCK') and \
                    (meta_line[index][fb][2] - meta_line[index][fb][0]) < (meta_line[index-1][fb][2] - meta_line[index-1][fb][0]) * 0.7:
                    sec[-1] += line[fc]
                    sec[-1] += "\n\n"
                else:
                    sec[-1] += " "
                    sec[-1] += line[fc]
            else:
                if (index+1 < len(meta_line)) and \
                    meta_line[index][fs] > main_fsize:
                    # 单行 + 字体大
                    mega_sec.append(copy.deepcopy(sec))
                    sec = []
                    sec.append("# " + line[fc])
                else:
                    # 尝试识别section
                    if meta_line[index-1][fs] > meta_line[index][fs]:
                        sec.append("\n" + line[fc])
                    else:
                        sec.append(line[fc])
        mega_sec.append(copy.deepcopy(sec))

        finals = []
        for ms in mega_sec:
            final = " ".join(ms)
            final = final.replace('- ', ' ')
            finals.append(final)
        meta_txt = finals

        ############################## <第 4 步,乱七八糟的后处理> ##################################
        def 把字符太少的块清除为回车(meta_txt):
            for index, block_txt in enumerate(meta_txt):
                if len(block_txt) < 100:
                    meta_txt[index] = '\n'
            return meta_txt
        meta_txt = 把字符太少的块清除为回车(meta_txt)

        def 清理多余的空行(meta_txt):
            for index in reversed(range(1, len(meta_txt))):
                if meta_txt[index] == '\n' and meta_txt[index-1] == '\n':
                    meta_txt.pop(index)
            return meta_txt
        meta_txt = 清理多余的空行(meta_txt)

        def 合并小写开头的段落块(meta_txt):
            def starts_with_lowercase_word(s):
                pattern = r"^[a-z]+"
                match = re.match(pattern, s)
                if match:
                    return True
                else:
                    return False
            for _ in range(100):
                for index, block_txt in enumerate(meta_txt):
                    if starts_with_lowercase_word(block_txt):
                        if meta_txt[index-1] != '\n':
                            meta_txt[index-1] += ' '
                        else:
                            meta_txt[index-1] = ''
                        meta_txt[index-1] += meta_txt[index]
                        meta_txt[index] = '\n'
            return meta_txt
        meta_txt = 合并小写开头的段落块(meta_txt)
        meta_txt = 清理多余的空行(meta_txt)

        meta_txt = '\n'.join(meta_txt)
        # 清除重复的换行
        for _ in range(5):
            meta_txt = meta_txt.replace('\n\n', '\n')

        # 换行 -> 双换行
        meta_txt = meta_txt.replace('\n', '\n\n')

        ############################## <第 5 步,展示分割效果> ##################################
        # for f in finals:
        #    print亮黄(f)
        #    print亮绿('***************************')

    return meta_txt, page_one_meta


def get_files_from_everything(txt, type): # type='.md'
    """
    这个函数是用来获取指定目录下所有指定类型(如.md)的文件,并且对于网络上的文件,也可以获取它。
    下面是对每个参数和返回值的说明:
    参数 
    - txt: 路径或网址,表示要搜索的文件或者文件夹路径或网络上的文件。 
    - type: 字符串,表示要搜索的文件类型。默认是.md。
    返回值 
    - success: 布尔值,表示函数是否成功执行。 
    - file_manifest: 文件路径列表,里面包含以指定类型为后缀名的所有文件的绝对路径。 
    - project_folder: 字符串,表示文件所在的文件夹路径。如果是网络上的文件,就是临时文件夹的路径。
    该函数详细注释已添加,请确认是否满足您的需要。
    """
    import glob, os

    success = True
    if txt.startswith('http'):
        # 网络的远程文件
        import requests
        from toolbox import get_conf
        from toolbox import get_log_folder, gen_time_str
        proxies = get_conf('proxies')
        try:
            r = requests.get(txt, proxies=proxies)
        except:
            raise ConnectionRefusedError(f"无法下载资源{txt},请检查。")
        path = os.path.join(get_log_folder(plugin_name='web_download'), gen_time_str()+type)
        with open(path, 'wb+') as f: f.write(r.content)
        project_folder = get_log_folder(plugin_name='web_download')
        file_manifest = [path]
    elif txt.endswith(type):
        # 直接给定文件
        file_manifest = [txt]
        project_folder = os.path.dirname(txt)
    elif os.path.exists(txt):
        # 本地路径,递归搜索
        project_folder = txt
        file_manifest = [f for f in glob.glob(f'{project_folder}/**/*'+type, recursive=True)]
        if len(file_manifest) == 0:
            success = False
    else:
        project_folder = None
        file_manifest = []
        success = False

    return success, file_manifest, project_folder



@Singleton
class nougat_interface():
    def __init__(self):
        self.threadLock = threading.Lock()

    def nougat_with_timeout(self, command, cwd, timeout=3600):
        import subprocess
        from toolbox import ProxyNetworkActivate
        logging.info(f'正在执行命令 {command}')
        with ProxyNetworkActivate("Nougat_Download"):
            process = subprocess.Popen(command, shell=True, cwd=cwd, env=os.environ)
        try:
            stdout, stderr = process.communicate(timeout=timeout)
        except subprocess.TimeoutExpired:
            process.kill()
            stdout, stderr = process.communicate()
            print("Process timed out!")
            return False
        return True


    def NOUGAT_parse_pdf(self, fp, chatbot, history):
        from toolbox import update_ui_lastest_msg

        yield from update_ui_lastest_msg("正在解析论文, 请稍候。进度:正在排队, 等待线程锁...", 
                                         chatbot=chatbot, history=history, delay=0)
        self.threadLock.acquire()
        import glob, threading, os
        from toolbox import get_log_folder, gen_time_str
        dst = os.path.join(get_log_folder(plugin_name='nougat'), gen_time_str())
        os.makedirs(dst)

        yield from update_ui_lastest_msg("正在解析论文, 请稍候。进度:正在加载NOUGAT... (提示:首次运行需要花费较长时间下载NOUGAT参数)", 
                                         chatbot=chatbot, history=history, delay=0)
        self.nougat_with_timeout(f'nougat --out "{os.path.abspath(dst)}" "{os.path.abspath(fp)}"', os.getcwd(), timeout=3600)
        res = glob.glob(os.path.join(dst,'*.mmd'))
        if len(res) == 0:
            self.threadLock.release()
            raise RuntimeError("Nougat解析论文失败。")
        self.threadLock.release()
        return res[0]




def try_install_deps(deps, reload_m=[]):
    import subprocess, sys, importlib
    for dep in deps:
        subprocess.check_call([sys.executable, '-m', 'pip', 'install', '--user', dep])
    import site
    importlib.reload(site)
    for m in reload_m:
        importlib.reload(__import__(m))


def get_plugin_arg(plugin_kwargs, key, default):
    # 如果参数是空的
    if (key in plugin_kwargs) and (plugin_kwargs[key] == ""): plugin_kwargs.pop(key)
    # 正常情况
    return plugin_kwargs.get(key, default)