import os
import re
import time
from re import match

from tqdm import tqdm
from scan_dir import scan_dir
from instance_locate import get_instances_by_title
from ocr_api import OcrAgent, find_current_row
import datetime


def is_price(word: str) -> bool:
    pattern = (
        r"(?:\b(?:[BS]/\.|R(?:D?\$|p))|\b(?:[TN]T|[CJZ])\$|Дин\.|\b(?:Bs|Ft|Gs|K[Mč]|Lek|B[Zr]|k[nr]|[PQLSR]|лв"
        r"|ден|RM|MT|lei|zł|USD|GBP|EUR|JPY|CHF|SEK|DKK|NOK|SGD|HKD|AUD|TWD|NZD|CNY|KRW|INR|CAD|VEF|EGP|THB|IDR"
        r"|PKR|MYR|PHP|MXN|VND|CZK|HUF|PLN|TRY|ZAR|ILS|ARS|CLP|BRL|RUB|QAR|AED|COP|PEN|CNH|KWD|SAR)|\$[Ub]|"
        r"[^\w\s])\s?(?:\d{1,3}(?:,\d{3})*|\d+)(?:\.\d{1,2})?(?!\.?\d)"
    )
    char_set = set('1234567890,.')
    if re.fullmatch(pattern, word):
        return True
    elif sum([0 if s in char_set else 1 for s in word]) == 0:
        return True
    else:
        return False


def extract_financial_report(path: str, year: int = None):
    instances = get_instances_by_title(path,
                                       ['财务状况', '{}年审计报告'.format(year - 1), '{}年审计报告'.format(year - 2)])
    results = []
    ocr_agent = OcrAgent("http://120.48.103.13:18000/ctr_ocr")
    for item in instances:
        if item['tables']:
            table_name = [t['table_name'] for t in item['tables']]
            profits = []
            for table in item['tables']:
                profit = []
                for row in table['table']:
                    if list(filter(lambda x: match(r'.*利润.*', x) is not None, row)):
                        profit.append(row)
                profits.append(profit)
            results.append({
                'title': table_name,
                'result': profits,
                'pages': [i['page_numbers'] for i in item['tables']],
                'chapter': item['title']
            })
        elif item['page_number'] >= item['end_page']:
            print('Wrong titles extracted at {}'.format(item['title']))
        else:
            images = list(filter(
                lambda x: (item['page_number'] <= int(x.split('_')[2]) <= item['end_page'])
                          and (x.endswith('.jpg') or x.endswith('.png'))
                          and os.path.isfile(os.path.join(item['image_loc'], x)),
                os.listdir(item['image_loc']))
            )
            # for image in images:
            #     ocr = table_pic_ocr(os.path.join(item['image_loc'], image))
            #     pass
            '''paddleOCR abandoned
            ocr_results = table_pic_ocr_batch([os.path.join(item['image_loc'], image) for image in images])
            candidate = []
            for i in range(len(images)):
                page = images[i]
                for data in ocr_results[i]:
                    if data['type'] in ('header', 'footer', 'table_caption', 'figure_caption', 'title'):
                        for text in data['res']:
                            if '利润' in text['text']:
                                candidate.append(page)
                                break
                    elif data['type'] in ('text', 'figure'):
                        for text in data['res']:
                            if '净利润' in text['text']:
                                candidate.append(page)
                                break
                    elif data['type'] in ('table',):
                        table = pd.read_html(data['res']['html'])[0].values.tolist()
                        for row in table:
                            if '净利润' in ''.join([str(i) for i in row]):
                                candidate.append(page)
                                break
                    else:
                        for text in data['res']:
                            if '净利润' in text['text']:
                                candidate.append(page)
                                break

            '''
            print('未找到表格 图片识别中')
            ocr_results = [ocr_agent.get_content(os.path.join(item['image_loc'], i))['rawjson']['ret'] for i in
                           tqdm(images)]
            candidate = []
            rows = []
            print('结果分析中')
            for i, ret in tqdm(enumerate(ocr_results)):
                for res in ret:
                    if re.match(r'.*(净利润).*', res['word']) is not None:
                        top = res['rect']['top']
                        bottom = res['rect']['top'] - res['rect']['height']
                        candidate.append(
                            {
                                'page': images[i],
                                'text': res['word'],
                                'top': top,
                                'bottom': bottom,
                            }
                        )
                        rows.append(find_current_row(ret, top, bottom))
            for it in candidate:
                print('定位:\t{}\t定位词:\t{}'.format(it['page'], it['text']))

            for i, row in enumerate(rows):
                title = []
                profits = []
                for w in row:
                    if is_price(w['word']):
                        profits.append(w['word'])
                    else:
                        title.append(w['word'])
                if title and profits:
                    results.append({
                        'chapter': item['title'],
                        'page': candidate[i]['page'],
                        'title': title,
                        'result': profits
                    })
            pass
        pass

    return results


if __name__ == '__main__':
    # print(extract_financial_report('./投标文件-修改版9-5-1-1.pdf'))

    os.environ["TRANSFORMERS_OFFLINE"] = '1'

    y = datetime.datetime.now().year
    print(extract_financial_report(
        '/home/zzh/ocr/pdf/美华建设有限公司/投标文件111.pdf',
        # '/home/zzh/ocr/pdf/南方电网数字电网研究院有限公司/南方电网数字研究院有限公司.pdf',
        # '/home/zzh/pdf_title_image/投标文件-修改版9-5-1-1.pdf',
        2022
    ))
    # start = time.time()
    # fs = scan_dir('/home/zzh/ocr/pdf/', 'pdf')
    #
    # for f in fs:
    #     try:
    #         print(f)
    #         print(extract_financial_report(f, 2022))
    #         print('\n*********Runtime {} s*********\n'.format(time.time() - start))
    #     except:
    #         print('Something wrong')
    #
    # print('\n\n{}'.format(time.time() - start))