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# Import all the things!
import urllib.request
from datetime import *
from lxml import html
from bs4 import BeautifulSoup


    

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# Scrape all HTML from webpage.
def scrapewebpage(url):
	# Open URL and get HTML.
	web = urllib.request.urlopen(url)

	# Make sure there wasn't any errors opening the URL.
	if (web.getcode() == 200):
		html = web.read()
		return(html)
	else:
		print("Error %s reading %s" % str(web.getcode()), url)

# Helper function that scrape the webpage and turn it into soup.
def makesoup(url):
	html = scrapewebpage(url)
	return(BeautifulSoup(html, "lxml"))


    

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weather_soup = makesoup("http://www.weatherpal.se/vader/Goteborg-2711537/")


    

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# Get minimium and maximum temperatures for the next 6 days.
soup_min_temps = weather_soup.find_all("div", "min-temp")
soup_max_temps = weather_soup.find_all("div", "max-temp")

# Create empty lists to store temperatures.
min_temps = []
max_temps = []

# For each minimum temperature, put it in a list.
for temp in soup_min_temps:
    min_temps.append(temp.get_text())

# For each maxiumum temperature, put it in a list.
for temp in soup_max_temps:
    max_temps.append(temp.get_text())


    

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# Lets check tomorrows weather.
print("Min celsius: " + min_temps[0])
print("Max celsius: " + max_temps[0])


    

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# What date is it tomorrow?
tomorrow = datetime.today() + timedelta(days=1)

# Name of weekdays.
weekdays = ["Monday", "Tuesday", "Wednesday", "Thursday", "Saturday", "Sunday"]


    

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# Use simpler names.
tomorrow_weekday = weekdays[tomorrow.weekday()]
tomorrow_mintemp = int(min_temps[0])
tomorrow_maxtemp = int(max_temps[0])


    

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# We start with the assumption that the data is news worthy.
IsNewsWorthy = True

# Are there errors in the data? 
if tomorrow_mintemp < -40:
    IsNewsWorthy = False
elif tomorrow_maxtemp > 60:
    IsNewsWorthy = False


    

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IsNewsWorthy


    

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text = ""
if IsNewsWorthy:
    if (tomorrow_mintemp < 0):
        text = "At {0} it will be freezing. The temperature will be {1} celsius, {2} at max."
        text = text.format(tomorrow_weekday, tomorrow_mintemp, tomorrow_maxtemp)
    elif (tomorrow_mintemp == 0):
        text = "At {0} it will be just above freezing point. The temperature will be between {1} and {2} celsius."
        text = text.format(tomorrow_weekday, tomorrow_mintemp, tomorrow_maxtemp)
    elif (tomorrow_mintemp > 0 and tomorrow_mintemp < 7):
        text = "Tomorrow, {0}, we will not freeze our socks off. Fortunately, the temperature will go down to {1} celsius but hopefully rise up to the maximum of {2}."
        text = text.format(tomorrow_weekday, tomorrow_mintemp, tomorrow_maxtemp)
    elif (tomorrow_mintemp > 7):
        text = "Tomorrow, {0}, it will be quite warm. Fortunately, the temperature will be {1} celsius at minimum, {2} maximum."
        text = text.format(tomorrow_weekday, tomorrow_mintemp, tomorrow_maxtemp)
        
    # Add this at the end of all texts.
    text = text + "\n\n" + "Published " + datetime.now().strftime("%Y-%m-%d %H:%M") + " by Ada the news robot"


    

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# Look at the text
print(text)


    

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# Function to save the text to a file.
def savefile(filename, text):
    f = open(filename, mode="w")   # Open file for writing (w = writing, a = append, r = reading)
    f.write(text)
    f.close()


    

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# Only save as text file if there is some text.
if text != "":
    savefile("newsrobot-weather.txt", text)
    print("Text published!")
else:
    print("Text is not published.")


    

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# Function that reads text from a file.
def readfile(filename):
    f = open(filename, mode="r")   # Open file for reading (w = writing, a = append, r = reading)
    lines = f.read()
    f.close()
    return(lines)


    

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# Read the file created earlier by the news robot.
text = readfile("newsrobot-weather.txt")


    

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# Look at the text from the file.
print(text)