from bs4 import BeautifulSoup
import requests
import datetime
import pytz

import workers.val
from classes import *

def getStation(name):
 return list(workers.val.validateName(name))[0]

def connRequest(frm, to, count = 3, time = datetime.datetime.now(), mode = False, details = False):
 outdate = datetime.datetime.strftime(time,"%d.%m.%Y")
 outtime = datetime.datetime.strftime(time,"%H:%M")

 url = "http://fahrplan.oebb.at/bin/query.exe/dn?start=1&S=%s&Z=%s&REQ0JourneyDate=%s&time=%s&REQ0HafasNumCons0=%s%s" % (frm.extid if frm.extid else frm.name, to.extid if to.extid else to.name, outdate, outtime, count, "&timesel=arrive" if mode else "")
 source = requests.get(url).text

 if "GO_conViewMode=outward" not in source:
  raise ValueError("No connection found.")

 juha = BeautifulSoup(source, "html5lib")
 
 if details:
  for a in juha.findAll("a"):
   if a.get("href") and "HWAI=CONNECTION$" in a.get("href"):
    dpage = a.get("href")

  ssource = requests.get(dpage).text
  suppe = BeautifulSoup(ssource, "html5lib")
  
  for i in range(0, count):
   cont = suppe.find("tr", id="trC0-%i" % i)
   if not cont:
    break

#   buyurl = None
#
#   for url in cont.findAll("a"):
#    if url.get("href") and "https://tickets.oebb.at/de/ticket/ticket?" in url.get("href"):
#     buyurl = url.get("href")

   conn = Connection(details)

   lines = cont.findAll("tr", { "class": "tpDetails" })[1:]
   cdate = None

   for line in range(0, len(lines), 3):
    serv = lines[line:line + 3]
    dep = serv[0]
    arr = serv[1]
    det = serv[2]

    depst = list(workers.val.validateName(dep.find("td", { "class": "station" }).findAll("a")[0].string))[0]
    depdate = dep.find("td", { "class": "date" }).string.strip() or cdate
    deptime = dep.find("td", { "class": "timeValue" }).find("span").string.split()[1].strip()
    depprog = (dep.find("span", { "class": "prognosis" }).find("span") or dep.find("span", { "class": "prognosis" })).string.strip() or None
    depplat = (dep.find("td", { "class": "platform" }).find("span") or dep.find("td", { "class": "platform" })).string.strip() or None

    walk = dep.find("img", { "class": "product" }).get("src") == "/img/vs_oebb/fuss_pic.gif"
    name = dep.find("img", { "class": "product" }).get("alt") if not walk else "Walk"

    if not walk:
     purl = dep.find("td", { "class": "product" }).find("a").get("href")
     psource = requests.get(purl).text

     zuppa = BeautifulSoup(psource, "html5lib")
     dest = list(workers.val.validateName(zuppa.findAll("div", { "class": "block" })[2].text.split(":")[1].strip()))[0]
    
    arrst = list(workers.val.validateName(arr.find("td", { "class": "station" }).findAll("a")[0].string))[0]
    arrdate = (arr.find("td", { "class": "date" }).find("span") or arr.find("td", { "class": "date" })).string.strip() or depdate
    arrtime = arr.find("td", { "class": "timeValue" }).find("span").string.split()[1].strip()
    arrprog = (arr.find("span", { "class": "prognosis" }).find("span") or arr.find("span", { "class": "prognosis" })).string.strip() or None
    arrplat = (arr.find("td", { "class": "platform" }).find("span") or arr.find("td", { "class": "platform" })).string.strip() or None

    depts = datetime.datetime.strptime("%s %s" % (depdate, deptime), "%d.%m.%Y %H:%M")
    arrts = datetime.datetime.strptime("%s %s" % (arrdate, arrtime), "%d.%m.%Y %H:%M")

    depprog = deptime if depprog == "pünktlich" else depprog
    arrprog = arrtime if arrprog == "pünktlich" else arrprog

    cdate = arrdate

    svc = Service(name, depst, depts, arrst, arrts, dest, depplat, depprog, arrplat, arrprog)
    conn.addService(svc)

   yield conn

 else:
  for i in range(0, count):
   det = juha.find("tr", id="trOverviewC0-%i" % i)
   if not det:
    break

   stations = det.find("td", { "class": "station" }).findAll("div")
   depst = getStation(stations[0].text.strip())
   arrst = getStation(stations[-1].text.strip())

   dates = list(det.find("td", { "class": "date" }).strings)
   depdate = dates[0]
   try:
    arrdate = dates[1]
   except:
    arrdate = depdate

   times = det.find("div", { "class": "planed" }).text
   deptime = times.split()[0]
   arrtime = times.split()[2]

   projections = det.find("div", { "class": "prognosis" })
   curdep = None
   curarr = None

   depts = datetime.datetime.strptime("%s %s" % (depdate, deptime), "%d.%m.%Y %H:%M")
   arrts = datetime.datetime.strptime("%s %s" % (arrdate, arrtime), "%d.%m.%Y %H:%M")

   name = "/".join([img.get("title") for img in det.findAll("img", { "class": "product" })])

#   ticketurl = det.find("td", { "class": "fares" }).find("a").get("href")

   svc = Service(name, depst, depts, arrst, arrts, currdep = curdep, curarr = curarr)
   con = Connection(details)

   con.addService(svc)

   yield con

def worker(frm, to, count = 3, time = datetime.datetime.now(pytz.timezone("Europe/Vienna")), mode = False, details = False, json = False):
 conns = list(connRequest(getStation(frm), getStation(to), count, time, mode, details))

 output = """<?xml version="1.0" encoding="UTF-8"?>
<connections>
""" if not json else """{
 \"connections\": [
 """

 for i in range(len(conns)):
  output += (conns[i].xml(1) + "\n") if not json else (conns[i].json(2) + ("\n" if i == len(conns) - 1 else ",\n"))

 output += "</connections>" if not json else " ]\n}"

 return output