import requests
from fastapi import FastAPI
from paddleocr import PaddleOCR, draw_ocr
from io import BytesIO
from PIL import Image
import os
import re
from enum import Enum
class contractType(Enum):
    Display = 0
    Contract = 1
    Idcard = 3
    IdcardSide = 4
    Signature = 5
    Lisense = 6
ocr = PaddleOCR(use_angle_cls=True, use_gpu=False, lang="ch")
app = FastAPI()
def carvin():
    pass
def carnumber():
    pass
def display():
    pass
def contract():
    pass
def idcard(a):
    
    gender_ethnicity_pattern = re.compile(r'性别(\w+)民族(\w+)')
    
    id_card_pattern = re.compile(r'(\d{17}[\dXx])')
    
    gender_ethnicity_match = gender_ethnicity_pattern.search(a)
    
    id_card_match = id_card_pattern.search(a)
    gender = ''
    ethnicity = ''
    id_card = ''
    
    if gender_ethnicity_match:
        gender = gender_ethnicity_match.group(1)  
        ethnicity = gender_ethnicity_match.group(2)  
        print("性别:", gender)
        print("民族:", ethnicity)
        
    if id_card_match:
        id_card = id_card_match.group(1)  
        print("身份证号:", id_card)
    return [gender, ethnicity, id_card]
def licenseside(a):
    
    pattern_company_name = re.compile(r'名\s+称\s+(\S.+?)\s+类')
    pattern_credit_code = re.compile(r'统一社会信用代码\s+(\S+)\(')
    pattern_business_address = re.compile(r'经营场所\s+(\S.+?)\s+组成')
    pattern_operator_name = re.compile(r'经\s+营\s+者\s+(\S+)')
    
    company_name_match = pattern_company_name.search(a)
    credit_code_match = pattern_credit_code.search(a)
    business_address_match = pattern_business_address.search(a)
    operator_name_match = pattern_operator_name.search(a)
    company_name = ''
    credit_code = ''
    business_address = ''
    operator_name = ''
    
    if company_name_match:
        company_name = company_name_match.group(1)
    if credit_code_match:
        credit_code = credit_code_match.group(1)
    if business_address_match:
        business_address = business_address_match.group(1)
    if operator_name_match:
        operator_name = operator_name_match.group(1)
    return [company_name, credit_code, business_address, operator_name]
def signature():
    pass
@app.get("/")
async def root(url: str, type: int):
    try:
        
        response = requests.get(url, stream=True)
        
        response.raise_for_status()
        
        if 'image' not in response.headers.get('content-type', ''):
            
            return {"error": "The provided URL does not point to an image."}, 400
            
        image_bytes = BytesIO(response.content)
        
        image = Image.open(image_bytes)
        
        
        temp_image_path = "temp_image.jpg"
        with open(temp_image_path, "wb") as image_file:
            image.save(image_file, format='JPEG')
            
        result = ocr.ocr(temp_image_path, cls=True)
        if os.path.exists(temp_image_path):
            os.remove(temp_image_path)
        results = ""
        
        for item in result:
            
            for sub_item in item:
                
                text = sub_item[1][0]  
                probability = sub_item[1][1]  
                
                
                results = results + ' ' + text
        
        if type == contractType.Idcard.value:
            return {"error": 0, "message": idcard(results), "type": type}
        if type == contractType.Lisense.value:
            return {"error": 0, "message": licenseside(results), "type": type}
        return {"error": 0, "message": results, "type": type}
    except requests.exceptions.RequestException as e:
        
        return {"error": f"An error occurred while downloading the image: {str(e)}"}, 500
    except Exception as e:
        
        return {"error": f"An error occurred during OCR processing: {str(e)}"}, 500