from selenium import webdriver
from selenium.webdriver.support.wait import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.common.by import By
import time
import traceback
import re


def bd_ocr_file(pictures):
    browser = webdriver.Chrome()
    browser.implicitly_wait(5)
    browser.maximize_window()
    browser.get('http://ai.baidu.com/tech/ocr/general')
    browser.execute_script("window.scrollTo(0, 850)")
    texts = []
    wait = WebDriverWait(browser, 5)
    wait.until(EC.presence_of_element_located((By.ID, "demo-photo-upload")))  # 等待id为table的元素被加载出来

    for picture in pictures:
        time.sleep(2)
        print("开始传文件")
        try:
            browser.find_element_by_css_selector('input[type="file"]').send_keys(picture)
            time.sleep(3)
            html = browser.find_element_by_id("demo-json").text
            res = re.compile(r'"words": "(.*)?"').findall(html)
            res = ' '.join(res)
            # print("开始图片识别")
            if not res:
                res = '空白'
            # print(res)
            texts.append(res)
            # print("完成图片识别\n")
        except Exception as e:
            print(e)
            traceback.print_exc()
            browser.quit()
    browser.quit()
    return texts