import urllib3

def finde(s,f):
    index = s.find(f)
    if(index == -1):
        raise ValueError("Could not find")
    return(index)

def getDate(s,e):
    s= s[finde(s,e)+len(e):]
    s= s[finde(s,"op"):]
    s= s[finde(s,"td")+1:]
    s= s[finde(s,"td")+1:]
    s= s[finde(s,">")+1:]
    t= s[:finde(s,"<")]

    datum = t.split("&nbsp;")
    #print(f"{e} op {datum[0]} {datum[1]} {datum[2]}")
    return(s,datum)

stationWeb = {"bandijk"         : "deventerijsselbrugwest",
              "utrechtcentraal" : "utrechtcs",

              }


def stationInfo(name):
    if(name in stationWeb.keys()):
        name = stationWeb[name]
    user_agent = {'user-agent': 'agen'}
    http = urllib3.PoolManager(10,headers=user_agent)
    url = http.urlopen('GET',"https://www.stationsweb.nl"+name)
    s = str(url.data)
    #f = open("station.asp?station=bobeldijk")
    #s = f.read()
    #s= s[finde(s,"Geopend")+5:]
    openings = []
    closings = []
    try:
        (s,datum) = getDate(s,"Geopend")
        openings.append(datum)


        while(True):
        #s= s[finde(s,"Gesloten"):]
            (s,datum)= getDate(s,"Gesloten")
            closings.append(datum)
            (s,datum)=getDate(s,"Heropend")
            openings.append(datum)
    except:
        return((openings,closings))
#print(stationInfo("apeldoorn"))
#stationInfo("voorst")