from rowers.imports import *
import datetime

import requests
from requests_oauthlib import OAuth1,OAuth1Session
from requests_oauthlib.oauth1_session import TokenRequestDenied
from requests import Request, Session
import rowers.mytypes as mytypes
from rowers.mytypes import otwtypes
from rowers.rower_rules import is_workout_user,ispromember
from iso8601 import ParseError

import pandas as pd

import numpy
import json
from json.decoder import JSONDecodeError
from uuid import uuid4

from rowsandall_app.settings import (
    GARMIN_CLIENT_KEY, GARMIN_REDIRECT_URI, GARMIN_CLIENT_SECRET
    )

from pytz import timezone as tz, utc

from rowers.tasks import handle_get_garmin_file
import django_rq
queue = django_rq.get_queue('default')
queuelow = django_rq.get_queue('low')
queuehigh = django_rq.get_queue('low')
from rowers.utils import myqueue
from rowers.models import C2WorldClassAgePerformance,Rower,Workout,TombStone

from django.core.exceptions import PermissionDenied

from rowers.utils import custom_exception_handler,NoTokenError
from rowingdata import rowingdata

oauth_data = {
    'client_id': GARMIN_CLIENT_KEY,
    'client_secret': GARMIN_CLIENT_SECRET,
    'redirect_uri': GARMIN_REDIRECT_URI,
    'authorization_uri': "https://connectapi.garmin.com/oauth-service/oauth/request_token",
    'content_type': 'application/x-www-form-urlencoded',
    'tokenname': 'garmintoken',
    'refreshtokenname': 'garminrefreshtoken',
    'expirydatename': 'garmintokenexpirydate',
    'bearer_auth': True,
    'base_url': "https://connect.garmin.com/oauthConfirm",
    'scope':'write',
    'headers': 'Authorization: OAuth oauth_version="1.0"'
    }

columns = {
    'startTimeInSeconds':'TimeStamp (sec)',
    'latitudeInDegree':' latitude',
    'longitudeInDegree':' longitude',
    'heartRate':' HRCur (bpm)',
    'speedMetersPerSecond':' AverageBoatSpeed (m/s)',
    'totalDistanceInMeters':' Horizontal (meters)',
    'clockDurationInSeconds':' ElapsedTime (sec)',
    'powerInWatts':' Power (watts)',
    'bikeCadenceInRPM':' Cadence (stokes/min)',
}

def garmin_authorize():
    redirect_uri = oauth_data['redirect_uri']
    client_secret = oauth_data['client_secret']
    client_id = oauth_data['client_id']
    base_uri = oauth_data['base_url']


    garmin = OAuth1Session(oauth_data['client_id'],
                           client_secret=oauth_data['client_secret'],
                           )
    fetch_response = garmin.fetch_request_token(oauth_data['authorization_uri'])
    resource_owner_key = fetch_response.get('oauth_token')
    resource_owner_secret = fetch_response.get('oauth_token_secret')

    authorization_url = garmin.authorization_url(base_uri)
    return authorization_url,resource_owner_key,resource_owner_secret

def garmin_processcallback(redirect_response,resource_owner_key,resource_owner_secret):
    garmin = OAuth1Session(oauth_data['client_id'],
                           client_secret=oauth_data['client_secret'],
                           )
    oauth_response = garmin.parse_authorization_response(redirect_response)

    verifier = oauth_response.get('oauth_verifier')
    token = oauth_response.get('oauth_token')
    access_token_url = 'https://connectapi.garmin.com/oauth-service/oauth/access_token'

    # Using OAuth1Session
    garmin = OAuth1Session(oauth_data['client_id'],
                          client_secret=oauth_data['client_secret'],
                          resource_owner_key=resource_owner_key,
                          resource_owner_secret=resource_owner_secret,
                          verifier=verifier,)
    try:
        oauth_tokens = garmin.fetch_access_token(access_token_url)
        garmintoken = oauth_tokens.get('oauth_token')
        garminrefreshtoken = oauth_tokens.get('oauth_token_secret')
    except TokenRequestDenied:
        garmintoken = ''
        garminrefreshtoken = ''

    return garmintoken,garminrefreshtoken

def garmin_open(user):
    r = Rower.objects.get(user=user)
    token = Rower.garmintoken

    if (token == '') or (token is None):
        raise NoTokenError("User has no garmin token")

    return token

def get_garmin_file(r,callbackURL,starttime,fileType):
    job = myqueue(
        queue,
        handle_get_garmin_file,
        oauth_data['client_id'],
        oauth_data['client_secret'],
        r.garmintoken,
        r.garminrefreshtoken,
        r.user.id,
        callbackURL,
        fileType,
        )

    return job.id

def get_garmin_workout_list(user):
    r = Rower.objects.get(user=user)
    if (r.garmintoken == '') or (r.garmintoken is None):
        s = "Token doesn't exist. Need to authorize"
        return custom_exception_handler(401,s)

    garmin = OAuth1Session(oauth_data['client_id'],
                           client_secret=oauth_data['client_secret'],
                           resource_owner_key=r.garmintoken,
                           resource_owner_secret=r.garminrefreshtoken,
                           )

    url = 'https://healthapi.garmin.com/wellness-api/rest/activities?uploadStartTimeInSeconds=1593113760&uploadEndTimeInSeconds=1593279360'

    result = garmin.get(url)

    return result

def garmin_can_export_session(user):
    result = get_garmin_permissions(user)
    if 'WORKOUT_IMPORT' in result:
        return True

    return False

from rowers import utils

def step_to_garmin(step):
    out = {
        'type': step['type']
    }
    try:
        steps = step['steps']
        lijst = []
        for s in steps:
            sout = step_to_garmin(s)
            lijst.append(sout)
        out['steps'] = lijst
    except KeyError:
        pass

    return out

def ps_to_garmin(ps):
    payload = {
        'workoutName': ps.name,
        'sport': 'GENERIC',
        'description':'Uploaded from Rowsandall.com',
        'estimatedDurationInSecs':60*ps.approximate_duration,
        'estimatedDistanceInMeters': ps.approximate_distance,
        'workoutProvider': 'Rowsandall.com',
        'workoutSourceId': 'Rowsandall.com',
    }

    steps = []

    steplist = utils.ps_dict_order_dict(ps.steps)


    while steplist:
        step, steplist = utils.peel(steplist)
        steps.append(step)

    steps.append(step)

    lijst = []
    for step in steps:
        lijst.append(step_to_garmin(step))

    payload['steps'] = lijst

    return payload


def get_garmin_permissions(user):
    r = Rower.objects.get(user=user)
    if (r.garmintoken == '') or (r.garmintoken is None):
        s = "Token doesn't exist. Need to authorize"
        return custom_exception_handler(401,s)

    garmin = OAuth1Session(oauth_data['client_id'],
                           client_secret=oauth_data['client_secret'],
                           resource_owner_key=r.garmintoken,
                           resource_owner_secret=r.garminrefreshtoken,
                           )

    url = 'https://apis.garmin.com/userPermissions/'

    result = garmin.get(url)

    if result.status_code == 200:
        return result.json()

    return []

def garmin_session_create(ps,user):
    if not ps.steps:
        return 0
    if not garmin_can_export_session(user):
        return 0

    garmindict = ps_to_garmin(ps)

    r = Rower.objects.get(user=user)
    if (r.garmintoken == '') or (r.garmintoken is None):
        s = "Token doesn't exist. Need to authorize"
        return custom_exception_handler(401,s)

    garmin = OAuth1Session(oauth_data['client_id'],
                           client_secret=oauth_data['client_secret'],
                           resource_owner_key=r.garmintoken,
                           resource_owner_secret=r.garminrefreshtoken,
                           )

    url = 'http://apis.garmin.com/training-api/schedule/'

    response = garmin.post(url,data=garmindict)

    if response.status_code != 200:
        return 0

    return response.json()['workoutId']

def garmin_getworkout(garminid,r,activity):
    starttime = activity['startTimeInSeconds']
    startdatetime = arrow.get(starttime)
    try:
        offset = activity['startTimeOffsetInSeconds']
    except KeyError:
        offset = 0
    durationseconds = activity['durationInSeconds']
    duration = dataprep.totaltime_sec_to_string(durationseconds)
    activitytype = activity['activityType']
    name = ''
    date = startdatetime.date()
    try:
        distance = activity['distanceInMeters']
    except KeyError:
        distance = 0
    try:
        averagehr = activity['averageHeartRateInBeatsPerMinute']
        maxhr = activity['maxHeartRateInBeatsPerMinute']
    except KeyError:
        averagehr = 0
        maxhr = 0
    try:
        w = Workout.objects.get(uploadedtogarmin=garminid)
    except Workout.DoesNotExist:
        newcsvfile='media/garmin{code}_{importid}.csv'.format(
            code=uuid4().hex[:16],
            importid=garminid,
        )
        w = Workout(user=r,csvfilename=newcsvfile)

    utc_offset = datetime.timedelta(seconds=offset)
    now = datetime.datetime.now(pytz.utc)
    zones = [tz.zone for tz in map(pytz.timezone, pytz.all_timezones_set)
       if now.astimezone(tz).utcoffset() == utc_offset]
    if r.defaulttimezone in zones:
        thetimezone = r.defaulttimezone
    elif len(zones):
        thetimezone = zones[0]
    else:
        thetimezone = utc

    startdatetime =  datetime.datetime(
        year=startdatetime.year,
        month=startdatetime.month,
        day=startdatetime.day,
        hour=startdatetime.hour,
        minute=startdatetime.minute,
        second=startdatetime.second,
        ).astimezone(pytz.timezone(thetimezone))

    w.startdatetime = startdatetime
    w.starttime = w.startdatetime.time()
    try:
        w.duration = datetime.datetime.strptime(duration,"%H:%M:%S.%f").time()
    except ValueError:
        w.duration = datetime.datetime.strptime(duration,"%H:%M:%S")
    try:
        w.workouttype = mytypes.garminmappinginv[activitytype]
    except KeyError:
        w.workouttype = 'other'
    w.name = name
    w.date = date
    w.distance = distance
    w.uploadedtogarmin = garminid

    w.save()


    return w

def garmin_workouts_from_details(data):
    activities = data['activityDetails']
    for activity in activities:
        try:
            garmintoken = activity['userAccessToken']
        except KeyError:
            return 0
        except TypeError:
            return 0
        try:
            r = Rower.objects.get(garmintoken=garmintoken)
            garminid = activity['summaryId'][:-7]
            summary = activity['summary']
            w = garmin_getworkout(garminid,r,summary)
            samples = activity['samples']
            df = pd.DataFrame(samples)
            df.rename(columns=columns,inplace=True)
            try:
                pace = 500./df[' AverageBoatSpeed (m/s)']
            except KeyError:
                pace = 0
                df[' AverageBoatSpeed (m/s)'] = 0
            df[' Stroke500mPace (sec/500m)'] = pace
            try:
                spm = df[' Cadence (stokes/min)']
            except KeyError:
                df[' Cadence (stokes/min)'] = 0
            df['cum_dist'] = df[' Horizontal (meters)']
            try:
                power = df[' Power (watts)']
            except KeyError:
                df[' Power (watts)'] = 0
            df[' AverageDriveForce (lbs)'] = 0
            df[' DriveLength (meters)'] = 0
            df[' PeakDriveForce (lbs)'] = 1
            df[' DriveTime (ms)'] = 0

            rowdata = rowingdata(df=df)
            rowdata.write_csv(w.csvfilename,gzip=True)
            data = dataprep.dataprep(rowdata.df,id=w.id)
            summary = rowdata.allstats()
            w.summary=summary
            w.uploadedtogarmin = garminid
            w.save()
            trimp,hrtss = dataprep.workout_trimp(w)
            rscore,normp = dataprep.workout_rscore(w)
        except Rower.DoesNotExist:
            pass

    return 1

def garmin_workouts_from_summaries(activities):
    for activity in activities:
        garmintoken = activity['userAccessToken']
        try:
            r = Rower.objects.get(garmintoken=garmintoken)
            id = activity['summaryId']
            w = garmin_getworkout(id,r,activity)
        except Rower.DoesNotExist:
            pass

    return 1