import argparse
import itertools
import json
import os
import re
from functools import partial
from pathlib import Path
import numpy as np
import torch
from qwen_vl_utils import process_vision_info
from torchvision.ops.boxes import box_area
from tqdm import tqdm
from transformers import AutoProcessor, Qwen2VLForConditionalGeneration
import cv2
import pandas as pd
import random
# from utils import seed_everything, get_model_id, update_res
import datetime
from num2words import num2words
import ast
import warnings
import csv

CAPABILITY_NAME = 'category'
def update_data_format(df_data):
    df_data = df_data.rename(columns={'capability': CAPABILITY_NAME})
    if 'dataset_name' in df_data.columns:
        df_data['sub_task'] = df_data['dataset_name']
        df_data.drop(columns=['dataset_name'], inplace=True)
        df_data.loc[df_data['sub_task'] == 'OCR-VQA', 'sub_task'] = 'BookOCR'
        df_data.loc[df_data[CAPABILITY_NAME] != 'Visual Reasoning', CAPABILITY_NAME] = 'Visual Perception'
        df_data['reasoning_type'] = df_data['reasoning_type'].fillna('')
        df_data.loc[df_data['reasoning_type'] == 'algebraic', 'reasoning_type'] = 'arithmetic'
        df_data.loc[df_data['task'] == 'Text Localization Bbox2Text', 'sub_task'] = 'Bbox2Text'
        df_data.loc[df_data['task'] == 'Text Localization Text2Bbox', 'sub_task'] = 'Text2Bbox'
        df_data.loc[df_data['task'] == 'Text Localization Bbox2Text', 'task'] = 'Text Localization'
        df_data.loc[df_data['task'] == 'Text Localization Text2Bbox', 'task'] = 'Text Localization'

        df_perception = df_data[df_data[CAPABILITY_NAME] == 'Visual Perception']
        df_reasoning = df_data[df_data[CAPABILITY_NAME] == 'Visual Reasoning'].copy()
        df_reasoning['task'] = df_reasoning['reasoning_type'].str.title()
        df_reasoning['task'] = df_reasoning['task'].apply(
            lambda x: x + ' Reasoning' if x in ['Arithmetic', 'Logical', 'Spatial'] else x
        )
        df_reasoning = df_reasoning.drop(columns=['reasoning_type'])  # mute SettingWithCopyWarning warnings
        return pd.concat([df_perception, df_reasoning], ignore_index=True)
    return df_data

answer_pattern = re.compile(r'<answer>(.*?)</answer>')
markdown_json_pattern = re.compile(r'```json(.*?)```', re.DOTALL)
def process_answer(answer):
    answer = answer.split('### Final Answer ###')[-1].strip() if '### Final Answer ###' in answer else answer
    answer = answer.split('Answer:')[-1].strip() if 'Answer:' in answer else answer
    matches = re.findall(answer_pattern, answer)
    answer = matches[-1] if matches else answer
    matches = re.findall(markdown_json_pattern, answer)
    answer = matches[-1] if matches else answer
    try:
        answer_json = json.loads(answer)
        answer = answer_json["answer"]
    except:
        pass
    return str(answer)

class NoMatchedEquationError(Exception):
    pass


def calculate(expression):
    try:
        exp = expression.split('=')[0].strip()
        node = ast.parse(exp, mode='eval')
        result = eval(compile(node, '<string>', 'eval'))
        return result
    except:
        return None
    
def extract_and_judge(expression, target_result):
    expression = expression.replace(" ", "").replace("$", "")
    result = calculate(expression)
    if result is None:
        raise NoMatchedEquationError(f"none error")
    else:
        return target_result.strip() in str(result).strip()
    
def check_relation(gt, ans, strict=False):
    # # cot: 200 direct: 25
    if strict:
        delta_len = 25
    else:
        delta_len = 200
    if abs(len(str(ans)) - len(str(gt))) > 200:
        return False
    
    gt = str(gt).strip()
    ans = str(ans).strip()

    if gt.lower() == ans.lower():
        return True

    ## rule 1: if string has million, then parse number
    # if "million" in ans or "increase" in ans or "decrease" in ans:
    #     a = re.findall(r'\d+', gt)
    #     for i in a:
    #         if str(i) in ans:
    #             return True

    ## rule 2: string exact match
    try:
        aa = int(gt.replace(",", "").replace("$", "").replace("*", "").replace("**", "").replace("@", "").replace("-","").replace(" ", "").replace("%", ""))
        # print(aa)
        words_list = ans.split(" ")
        for i in words_list:
            if int(aa) == int(i.replace(",", "").replace("$", "").replace("*", "").replace("**", "").replace("@", "").replace("-", "").replace(" ", "").replace("%", "").replace("million","").replace("increase","").replace("decrease","")):
                if len(words_list)<5:
                    return True
    except:
        pass
    
    try:
        aa = float(gt.replace(",", "").replace("$", "").replace("*", "").replace("**", "").replace("@", "").replace("-","").replace(" ", "").replace("%", ""))
        # print(aa)
        words_list = ans.split(" ")
        for i in words_list:
            if round(aa,4) ==round(float(i.replace(",", "").replace("$", "").replace("*", "").replace("**", "").replace("@", "").replace("-", "").replace(" ", "").replace("%", "").replace("million","").replace("increase","").replace("decrease","")),4):
                if len(words_list) < 3:
                    return True
    except:
        pass

    ## rule 3: if string can be converted to number, then use number to test, avoid '1' and '12'
    try:
        a_f = float(ans.replace(",", "").replace("$", ""))
        g_f = float(gt.replace(",", "").replace("$", ""))
        if a_f == g_f:
            return True
        else:
            return False
    except:
        pass
    ## rule 4: if answer contains equation e.g. 141-111=30
    try:
        aa = extract_and_judge(ans, gt)
        return aa
    except:
        pass

    ## rule 5: string contains thousandths like 1,000 or percentage like 10% 
    try:
        num_gt = float(gt.lstrip('$').replace(',', '').rstrip('%')) / 100 if "%" in gt else float(
            gt.lstrip('$').replace(',', ''))
        num_ans = float(ans.lstrip('$').replace(',', '').rstrip('%')) / 100 if "%" in ans else float(
            ans.lstrip('$').replace(',', ''))
        if num_gt == num_ans:
            return True
        else:
            return False
    except ValueError:
        pass

    ## rule 6: number to word e.g. eleven=>11
    try:
        num_gt = float(gt.lstrip('$').replace(',', '').rstrip('%')) / 100 if "%" in gt else float(
            gt.lstrip('$').replace(',', ''))
        if num2words(int(num_gt)).lower() == ans.lower():
            return True
        else:
            return False
    except ValueError:
        pass
    
    ## rule 7: string convert
    aa = gt.lower() in ans.lower()
    if aa:
        try:
            a = int(ans.lower().replace(gt.lower(), "").replace(" ", ""))
            if a:
                return False
            else:
                return True
        except:
            return True
        
def eval_mmdocbench(ans, gt_obj, strict=False):
    # 1.process ans
    ans = process_answer(ans)
    # 2.process ground truth
    # if isinstance(gt_obj[0], str):
    #     gt_obj = json.loads(gt_obj[0])
    # for gt_obj_ in gt_obj:
    #     gt_ls = []
    #     if isinstance(gt_obj_, list):
    #         for sub_gt_obj_ in gt_obj_:
    #             gt_ls.append(str(sub_gt_obj_['answer']))
    #     else:
    #         gt_ls.append(str(gt_obj_['answer']))
    gt_ls = []
    gt_obj_lst = json.loads(gt_obj)
    
    if type(gt_obj_lst[0]) == list:
        gt_obj_lst = gt_obj_lst[0]
    for item in gt_obj_lst: # gt_obj_lst is list
        gt_ls.append(item["answer"])

    # 3.calculate em
    cnt = 0
    em = 0
    for gt in gt_ls:
        if gt != "":
            cnt += 1
            flag = check_relation(gt, ans, strict)
            if flag:
                em += 1
    em /= cnt
    return em