auto

#!/usr/bin/env python3
# -*- coding: utf-8 -*-

import os
import yaml
import json
import urllib.request
from collections import namedtuple

Location        = namedtuple("Location", "lat lng")
Station         = namedtuple("Station", "id name")
PriceResponse   = namedtuple("PriceResponse", "status e5 e10 diesel")
StationResponse = namedtuple("StationResponse",
                             ("id name brand street place lat lng dist diesel "
                              "e5 e10 isOpen houseNumber postCode"))
DetailResponse  = namedtuple("DetailResponse",
                             ("id name brand street houseNumber postCode place "
                              "openingTimes overrides wholeDay isOpen e5 e10 "
                              "diesel lat lng state"))



class Fuel:
    _URL_BASE  = "https://creativecommons.tankerkoenig.de/json/"
    URL_LIST   = _URL_BASE + (
                 "list.php?lat={loc.lat}&lng={loc.lng}"
                 "&rad={rad}&type={type}&sort={sort}"
                 "&apikey={apikey}")
    URL_PRICES = _URL_BASE + ("prices.php?ids={ids_string}&apikey={apikey}")
    URL_DETAIL = _URL_BASE + ("detail.php?id={id}&apikey={apikey}")

    def __init__(self, key):
        self._key = key

    def list(self, loc, rad, sort="dist"):
        assert sort in ("dist", "price")

        answer = urllib.request.urlopen(self.URL_LIST.format(
            loc=loc, rad=rad, type="all", sort=sort, apikey=self._key))
        d = json.load(answer)
        
        return [StationResponse(**s) for s in d["stations"]]

    def prices(self, stations):
        if len(stations) > 10:
            raise ValueError("len(stations) > 10")

        answer = urllib.request.urlopen(self.URL_PRICES.format(
            ids_string=",".join(s.id for s in stations), apikey=self._key))
        d = json.load(answer)
        
        return {item[0]: PriceResponse(**item[1])
                for item in d["prices"].items()}
        
    def detail(self, station):
        answer = urllib.request.urlopen(self.URL_DETAIL.format(
            id=station, apikey=self._key))
        d = json.load(answer)
        
        return DetailResponse(**d["station"])



class Traffic:
    _URL_BASE = "https://route.api.here.com/routing/7.2/"
    URL_ROUTING = _URL_BASE + (
                  "calculateroute.json"
                  "?app_id={app_id}"
                  "&app_code={app_code}"
                  "&mode=fastest;car;traffic:disabled"
                  "&{waypoints}")

    Duration = namedtuple("Duration", "ideal delay")
    
    def __init__(self, app_id, app_code):
        self._app_id = app_id
        self._app_code = app_code
        
    def duration(self, waypoints):        
        waypoint_string = "&".join(
            "waypoint{}={wp.lat},{wp.lng}".format(i, wp=wp)
             for i, wp in enumerate(waypoints))
        answer = urllib.request.urlopen(self.URL_ROUTING.format(
            app_id=self._app_id, app_code=self._app_code,
            waypoints=waypoint_string))
        d = json.load(answer)
        summary = d["response"]["route"][0]["summary"]

        
        return self.Duration(ideal=round(summary["baseTime"] / 60),
                             delay=round(summary["trafficTime"] / 60))

    
if __name__ == "__main__":
    with open(os.path.expanduser('~/.config/scripts/auto.yaml')) as f:
        config = yaml.load(f)
    
    f = Fuel(config["gas"]["auth"])
    t = Traffic(*config["traffic"]["auth"])    

    print("=========== Verkehr ==================================================")
    routes = [[(Location(location["lat"], location["long"]), location["name"])
              for location in waypoint] 
              for waypoint in config["traffic"]["routes"]]
    
    for r in routes:
        dur = t.duration(l[0] for l in r)
        route_string = " -> ".join(l[1] for l in r)
        if dur.delay > dur.ideal:
            info_string = "{:50.50s}: {:>5d} min ({:+4d})".format(
                route_string, dur.delay, dur.delay-dur.ideal)
        else:
            info_string = "{:50.50s}: {:>5d} min".format(
                route_string, dur.delay)

        print(info_string)


    print("=========== Tankstellen ==============================================")

    stations = f.list(Location(config["gas"]["location"]["lat"],
                               config["gas"]["location"]["long"]),
                      config["gas"]["location"]["radius"])
    stations = [s for s in stations if s.e5 is not None]
    stations.sort(key=lambda s: s.e5)

    for s in stations[:5]:
        print("{:<10.10s}, {:<20.20s}, {:<10.10s}, E5 = {:>6.3f} €, ({:4.2f} km)".format(
            s.brand, s.street.title()
	    + " " + s.houseNumber, s.place.title(), s.e5, s.dist))