import os
from dotenv import load_dotenv
import requests
import datetime
from threading import Thread, Lock
import time
import copy

load_dotenv()

OKAPI_POSTE_KEY = os.getenv('OKAPI_POSTE_KEY')
DHL_KEY = os.getenv('DHL_KEY')
DHL_SECRET = os.getenv('DHL_SECRET')

POSTE_ENDPOINT = 'https://api.laposte.fr/suivi/v2/idships/'
DHL_ENDPOINT = 'https://api-eu.dhl.com/track/shipments'


class Event:
    def __init__(self, date, label, description="", location=""):
        self.date = date
        self.label = label
        self.description = description
        self.location = location
    
    def __lt__(self, other):
        return self.date.__lt__(other.date)
    
    def __str__(self):
        return "Event<date:" + str(self.date) + "; label:" + self.label + "; desciption:" + self.description + "; location:" + self.location + ">"
    
    def __repr__(self):
        return self.__str__()

class Tracking:

    def __init__(self, tracking_num):
        self.tracking_num = tracking_num
        self.events = []
        self.service = ""
        self.eta = None
        return
    
    def track(self):
        pass

    def get_history(self):
        self.events.sort()
        return self.events
    
    def get_last_event(self):
        self.events.sort()
        if len(self.events) == 0:
            return None
        return self.events[-1]

class Poste_tracking(Tracking):
    codes = {"DR1":"Déclaratif réceptionné",
                "DR2":"Problème lors de la préparation",
                "PC1":"Pris en charge",
                "PC2":"Pris en charge dans le pays d'expédition",
                "ET1":"En cours de traitement",
                "ET2":"En cours de traitement dans le pays d'expédition",
                "ET3":"En cours de traitement dans le pays de destination",
                "ET4":"En cours de traitement dans un pays de transit",
                "EP1":"En attente de présentation",
                "DO1":"Entrée en Douane",
                "DO2":"Sortie  de Douane",
                "DO3":"Retenu en Douane",
                "PB1":"Problème en cours",
                "PB2":"Problème résolu",
                "MD2":"Mis en distribution",
                "ND1":"Non distribuable",
                "AG1":"En attente d'être retiré au guichet",
                "RE1":"Retourné à l'expéditeur",
                "DI0":"Distribué en lot",
                "DI1":"Distribué",
                "DI2":"Distribué à l'expéditeur",
                "DI3":"Retardé"}
    def track(self):
        auth_headers = {'X-Okapi-Key' : OKAPI_POSTE_KEY, 'Accept' : 'application/json'}
        response = requests.get(POSTE_ENDPOINT + self.tracking_num, headers = auth_headers)
        js = response.json()
        if "product" in js:
            self.service = js["product"]
        if "shipment" in js:
            for jev in js["shipment"]["event"]:
                self.events.append(Event(datetime.datetime.fromisoformat(jev["date"]), self.codes[jev["code"]],description=jev["label"]))
            if "estimDate" in js["shipment"]:
                self.eta = datetime.datetime.fromisoformat(js["shipment"]["estimDate"])

class DHL_tracking(Tracking):
    def track(self):
        auth_headers = {'DHL-API-Key' : DHL_KEY}
        query = {'trackingNumber' : self.tracking_num}
        response = requests.get(DHL_ENDPOINT, params = query, headers = auth_headers)
        js = response.json()
        if "shipments" in js:
            if len(js["shipments"]) == 1:
                self.service = js["shipments"][0]["service"]
                if "estimatedDeliveryTimeFrame" in js["shipments"][0]:
                    self.eta = datetime.datetime.fromisoformat(js["shipments"][0]["estimatedDeliveryTimeFrame"]["estimatedFrom"])
                if "estimatedTimeOfDelivery" in js["shipments"][0]:
                    self.eta = datetime.datetime.fromisoformat(js["shipments"][0]["estimatedTimeOfDelivery"])
                for jev in js["shipments"][0]["events"]:
                    loc = ""
                    if "location" in jev:
                        loc=jev["location"]["address"]["addressLocality"]
                    self.events.append(Event(datetime.datetime.fromisoformat(jev["timestamp"]), jev["statusCode"],description=jev["description"], location=loc))


class TrackingManager:

    def __init__(self):
        self.trackers = []
        self.trackers_lock = Lock()
        self.daemon_task = Thread(target=self.tracking_task)
        self.daemon_task.start()
        return
    
    def add_tracker(self, trckr):
        self.trackers_lock.acquire()
        self.trackers.append(trckr)
        self.trackers_lock.release()
        return

    def track_all(self):
        self.trackers_lock.acquire()
        for trckr in self.trackers:
            trckr.track()
        self.trackers_lock.release()
        return
    
    def tracking_task(self):
        while True:
            self.track_all()
            print("Tracking !")
            time.sleep(10)
        return
    
    def get_trackers(self):
        self.trackers_lock.acquire()
        c = copy.deepcopy(self.trackers)
        self.trackers_lock.release()
        return c

tman = TrackingManager()
#print('[')
Ptrack = Poste_tracking("CC550445947DE")

#print(Ptrack.get_last_event())
#print(',')

#Chronotrack = Poste_tracking("XA420959322FR")
#Chronotrack.track()
#print(Chronotrack.get_last_event())
#print(',')

DHLtrack = DHL_tracking("CC550445947DE")

tman.add_tracker(Ptrack)
tman.add_tracker(DHLtrack)

time.sleep(20)

print(tman.get_trackers())

#print(DHLtrack.get_history())
#print(Ptrack.get_history())
#print(']')