import urllib.request
from re import findall
import datetime
import csv
import os
import time

####################
# Gets the current directory and changes it to the desktop 
# REPLACE Kdog93 with YOUR USERNAME
####################
print("My current Directory is at\n", os.getcwd())
os.chdir('C:\\Users\\Kdog93\\Desktop')
class weather:
    def __init__(self):
        gustavo = True
        start = datetime.datetime.now()
        two_days = datetime.timedelta(days=2)
        #Naming the file todays date using the datetime module
        dateStr = str(start.month) + "." + str(start.day) + "." + str(start.year) 
        self.fName = "weather" + dateStr + ".csv"
        self.f = open(self.fName, "a", newline="")
        while gustavo:
            self.now = datetime.datetime.now()
            self.scrape()
            self.writeToFile()
            self.sleep()
            if (self.now - start) >= two_days:
                self.f.close()
                print("Done!")
                gustavo = False
                
    def sleep(self):
        #seconds as a parameter 
        #10 minute delay
        time.sleep(600)

    def scrape(self):
        url = "http://www.accuweather.com/en/us/atlanta-ga/30303/weather-forecast/348181"
        response = urllib.request.urlopen(url) #response if webpage is found ex.404 not found
        html = response.read() #Array of bytes
        htmlStr = html.decode() #Converts to string
        #Webscraping with three different capture groups
        #(weather condition, actual temperature, feels like temperature)
        data = findall('<div class="info"> <span class="cond">([A-Za-z &0-9]+)</span> <strong class="temp">([0-9]+)<span>&deg;</span></strong><br />\n?\t?\s*<span class="realfeel">RealFeel&reg; ([0-9]+)', htmlStr)
        for atup in data:
            newtup = atup + (str(self.now.time()),)
            self.newtup = newtup
        

    def writeToFile(self):
        #Appends to the file the weather data at that time        
        csvWriter = csv.writer(self.f)
        csvWriter.writerow(list(self.newtup))
        self.f.flush()  #Make sure that you can watch the progress...
        pstr ="Writing to file: " + self.fName + "\n\t"
        print(pstr, self.newtup)

   
weather()