# coding:utf-8
import os
import subprocess
from PIL import Image
 
 
def get_captcha(driver, captcha_id, full_screen_img_path, captcha_img_path, captcha_final_path, txt_path, ocr_path):
    # 瀏覽器界面截圖
    driver.save_screenshot(full_screen_img_path)
    # 找到驗證碼圖片，得到它的坐標(biāo)
    element = driver.find_element_by_id(captcha_id)
    left = element.location['x']
    top = element.location['y']
    right = element.location['x'] + element.size['width']
    bottom = element.location['y'] + element.size['height']
    left, top, right, bottom = int(left), int(top), int(right), int(bottom)
    img = Image.open(full_screen_img_path)
    img = img.crop((left, top, right, bottom))
    # 得到驗證碼圖片
    img.save(captcha_img_path)
    # 打開驗證碼圖片
    img = Image.open(captcha_img_path)
    # 顏色直方圖，255種顏色，255為白色
    # 新建一張圖片(大小和原圖大小相同，背景顏色為255白色)
    img_new = Image.new('P', img.size, 255)
    for x in range(img.size[1]):
        for y in range(img.size[0]):
            # 遍歷圖片的xy坐標(biāo)像素點顏色
            pix = img.getpixel((y, x))
            # print(pix)
            # 自己調(diào)色，r=0，g=0，b>0為藍色
            if pix[0] < 20 and pix[1] < 20 and pix[2] > 50:
                # 把遍歷的結(jié)果放到新圖片上，0為透明度，不透明
                img_new.putpixel((y, x), 0)
    img_new.save(captcha_final_path, format='png')
 
    # 通過tesseract工具解析驗證碼圖片，生成文本
    os.system(ocr_path)
 
    # 讀取txt文件里面的驗證碼
    with open(txt_path, 'r') as f:
        if f.read():
            t = f.read().strip()
            # 去掉中間空格
            if ' ' in t:
                t = t.replace(' ', '')
            if t.isdigit() and len(t) == 4:
                return t
            else:
                return 'fail'
 
 
def check_resp(result, msg):
    if msg in result:
        return 'pass'
    else:
        return 'failed'
 
 
# 接口 - 識別驗證碼
def get_captcha(captcha_img_path, captcha_final_path, txt_path, ocr_path):
 
    # 打開驗證碼圖片
    img = Image.open(captcha_img_path)
 
    # 新建一張圖片(大小和原圖大小相同，背景顏色為255白色)
    img_new = Image.new('P', img.size, 55)
    for x in range(img.size[1]):
        for y in range(img.size[0]):
            # 遍歷圖片的xy坐標(biāo)像素點顏色
            pix = img.getpixel((y, x))
            # print(pix)
            # 自己調(diào)色，r=0，g=0，b>0為藍色
            if pix[0] < 20 and pix[1] < 20 and pix[2] > 50:
                # 把遍歷的結(jié)果放到新圖片上，0為透明度，不透明
                img_new.putpixel((y, x), 0)
    img_new.save(captcha_final_path, format='png')
 
    # 通過tesseract工具解析驗證碼圖片，生成文本，【Tesseract-OCR必須和jpg的根目錄必須相同，如C盤、D盤！?。　?
    os.system(ocr_path)
 
    # 讀取txt文件里面的驗證碼
    with open(txt_path, 'r') as f:
        if r.read():
            t = f.read().strip()
            # 去掉中間空格
            if ' ' in t:
                t = t.replace(' ', '')
            # 如果是數(shù)字且長度為4，就返回數(shù)字，如果不是就返回 fail
            if t.isdigit() and len(t) == 4:
                return t
            else:
                return fail