REGEX = r"SDS_ILS_BEGINN(#D#Leitstelle:\s+)(?P<number>\d*)(?P<sonderrechte>m|o|i)?(?P<fzg>RTW|NAW|KTW)? (?P<keyword>Trauma Gesicht/|Atemnot Akut|Trauma Extremit|Abdomen Akut|Person droht zu spr|Hilflose Person|\S*|) (?P<address>\D*)(.*) \$GPSN(.*)E(.*)SDS_ILS_ENDE"

import os
import PyPDF2
import re
from dotenv import load_dotenv
from geopy.geocoders import Nominatim
from logger import logging

load_dotenv(override=True)

DRAEGER_API_KEY = os.environ.get("DRAEGER_API_KEY", default=None)

def get_city(lat, lon):
    app = Nominatim(user_agent="Test")
    location = app.reverse(query="N" + lat[:2] + '.' + lat[2:] + ", E" + lon[:2] + '.' + lon[2:], namedetails=True)
    
    return [location.raw.get("address").get("postcode"), location.raw.get("address").get("city"), location.raw.get("address").get("city_district")]
        
def read_pdf(file_path):
    with open(file_path, 'rb') as file:
        reader = PyPDF2.PdfReader(file)
        text = ''
        for page in reader.pages:
            text += page.extract_text()
        
        return text

def get_draeger_json(text):
    match = re.findall(REGEX, text.replace("\n", ""))   

    if (len(match) != 0):
        data = {}
        data["apiKey"] = DRAEGER_API_KEY
        
        if(match[0][1].startswith("9")): # 9 => RD (First Rsponder)
            data["alertingKeyword"] = "Wachalarm"
        else:
            data["alertingKeyword"] = match[0][4]
        data["alertingKeywordText"] = match[0][1] + " " + match[0][4]
        data["street"] = match[0][5]
        data["houseNumber"] = match[0][6]
        
        try:
            city = get_city(match[0][7], match[0][8])
            data["city"] = city[0] + " " + city[1]
            data["cityDistrict"] = city[2]
        except Exception as e:
            logging.error(f'Fehler: {e}')
            
        data["lat"] = match[0][7][:2] + '.' + match[0][7][2:]
        data["lon"] = match[0][8][:2] + '.' + match[0][8][2:]

        logging.debug(data)
        return data
    else:
        return None