from django.shortcuts import render
from rest_framework.views import APIView
from rest_framework.parsers import MultiPartParser
from rest_framework.response import Response
from rest_framework import status
import easyocr

import cv2 
import pytesseract
from pytesseract import Output
import json

def UploaderView(request):
    return render(request, 'sumasen_easyocr/index.html')

class FileUploadView(APIView):
    parser_classes = [MultiPartParser,]

    def post(self, request, format='jpg'):
        ocr =  request.POST.get("engine", None)
    
        up_file = request.FILES['file']
        destination = open('/Users/mohamednouffer/workspace/akira_san/sumasen_ocr/sumasen_easyocr/uploaded' + up_file.name, 'wb+')
        #destination = open('/home/sumasen/django_easyocr_api/orc_api/sumasen_easyocr/uploaded' + up_file.name, 'wb+')
        for chunk in up_file.chunks():
            destination.write(chunk)
        destination.close()

        if ocr == 'EasyOCR':
            try:
                reader = easyocr.Reader(['ja','en'])
                #result = reader.readtext('/home/sumasen/django_easyocr_api/orc_api/sumasen_easyocr/uploaded' + up_file.name)
                result = reader.readtext('/Users/mohamednouffer/workspace/akira_san/sumasen_ocr/sumasen_easyocr/uploaded' + up_file.name)
                #print('@@@@@@@@@@')
                #print(result)
                #print('@@@@@@@@@@')
                return Response(result, status.HTTP_201_CREATED)
                #return Response({''}, status.HTTP_201_CREATED)
            
            except Exception as e:
                print(e)
                return Response({'Error': "Error occured"}, status.HTTP_400_BAD_REQUEST)
        else:
            try:
                
                img = cv2.imread('/Users/mohamednouffer/workspace/akira_san/sumasen_ocr/sumasen_easyocr/uploaded' + up_file.name)
                custom_config = r'--oem 3 --psm 6'
                res = pytesseract.image_to_data(img, lang='jpn', config=custom_config, output_type=Output.DICT)
                app_json = json.dumps(res)
                return Response(app_json, status.HTTP_201_CREATED)
                
            except Exception as e:
                print(e)
                return Response({'Error': "Error occured"}, status.HTTP_400_BAD_REQUEST)