from datetime import date
from django.contrib.auth.decorators import login_required
from django.contrib.auth.models import Group
from django.contrib.auth import get_user_model
from django.contrib.contenttypes.models import ContentType

from django.db.models import (
    Q,
    Avg,
)
from django.http import HttpResponseRedirect, JsonResponse
from django.shortcuts import render, get_object_or_404
from django.views.decorators.http import require_http_methods
from django.urls import reverse
from django.conf import settings

from django.core.mail import send_mail

import pendulum

from jarvis.followup.models import Event
from jarvis.followup.forms import GymnastHasRoutineForm

from jarvis.objective.models import GymnastTraining
from jarvis.followup.models import (
    Note,
    Plan,
    Skill,
    Point,
    Chrono,
    Injury,
    WellBeing,
    Intensity,
    LearnedSkill,
    HeightWeight,
    SeasonInformation,
    NumberOfRoutineDone,
)

from jarvis.tools.models import Season
from jarvis.tools.clean_name import clean_name
from .models import Gymnast
from .forms import GymnastForm, UserForm

User = get_user_model()


@login_required
@require_http_methods(["POST"])
def gymnast_lookup(request):
    """
    Récupère la liste des gymnastes à la volée suivant des caractères de
    recherche entrés (min 3 caractères).
    """

    results = []
    pattern = request.POST.get("pattern", None)

    if pattern is not None and len(pattern) > 2:
        name = clean_name(pattern)

        # gymnast_list = Gymnast.objects.filter(
        #     Q(cleaned_last_name__icontains=name) | Q(cleaned_first_name__icontains=name)
        # )

        gymnast_list = Gymnast.objects.filter(
            is_active=True, pk__in=request.session["available_gymnast"]
        ).filter(
            Q(cleaned_last_name__icontains=name) | Q(cleaned_first_name__icontains=name)
        )

        results = [{"ID": x.id, "Name": str(x)} for x in gymnast_list]

    return JsonResponse(results, safe=False)


@login_required
@require_http_methods(["GET"])
def gymnast_listing(request):
    """
    Si la personne connectée est un entraîneur : liste tous les gymnasts actifs connus mais n'aura
    accès qu'aux gymnastes autorisé(e)s.
    Si la personne connectée est un gymnaste : renvoie directement sa fiche détaillée.
    """
    season = Season()

    if request.user.groups.filter(name="trainer").exists():
        season_information_list = SeasonInformation.objects.filter(
            season=season.label
        ).select_related("gymnast")
        context = {"season_information_list": season_information_list}
        return render(request, "gymnasts/list.html", context)

    gymnast = Gymnast.objects.get(user=request.user)  # a mettre dans un TRY
    return gymnast_details(request, gymnast.id)


@login_required
@require_http_methods(["GET"])
def gymnast_details(request, gymnast_id, tab=None):
    """
    Récupère toutes les informations d'un gymnaste si la personne connectée est un "trainer".
    Si la personne connectée est un gymnaste : renvoie sa fiche détaillée.

    Args:
        gymnast_id  (int)    identifiant du gymnast
        tab         (str)    <string> de l'onglet désiré
    """

    if request.user.is_superuser or (
        request.session.has_key("available_gymnast")
        and gymnast_id in request.session["available_gymnast"]
    ):
        gymnast = get_object_or_404(Gymnast, pk=gymnast_id)
    else:
        return gymnast_listing(request)

    last_season_information = gymnast.season_informations.order_by("-season").first()

    gymnast_nb_known_skills = gymnast.known_skills.distinct(
        "skill"
    ).count()  # devrait disparaitre

    nb_skill = Skill.objects.all().count()
    nb_known_skill = (
        LearnedSkill.objects.filter(gymnast=gymnast_id).distinct("skill").count()
    )

    if nb_skill != 0:
        percentage_known_skill = (nb_known_skill / nb_skill) * 100
    else:
        percentage_known_skill = 0

    # base_queryset = Chrono.objects.filter(gymnast=gymnast_id).order_by("-date")
    chronos_list = Chrono.objects.filter(gymnast=gymnast_id).order_by("-date")[:10]
    straightjump_score = (
        Chrono.objects.filter(gymnast=gymnast_id)
        .filter(chrono_type=0)
        .order_by("-date")
    )
    best_straightjump = (
        Chrono.objects.filter(gymnast=gymnast_id)
        .filter(chrono_type=0)
        .order_by("-score")[:1]
    )
    best_routine = (
        Chrono.objects.filter(gymnast=gymnast_id)
        .filter(chrono_type=1)
        .order_by("-score")[:1]
    )

    context = {
        "gymnast": gymnast,
        "last_season_information": last_season_information,
        "gymnast_nb_known_skills": gymnast_nb_known_skills,
        "chronos_list": chronos_list,
        "straightjump_score": straightjump_score,
        "best_routine": best_routine,
        "best_straightjump": best_straightjump,
        "nb_skill": nb_skill,
        "nb_known_skill": nb_known_skill,
        "percentage_known_skill": percentage_known_skill,
        "tab": tab,
    }
    context["user_is_trainer"] = request.user.groups.filter(
        name="trainer"
    ).exists()  # TODO: utiliser les {{ perms }}
    return render(request, "gymnasts/details.html", context)


@login_required
@require_http_methods(["GET"])
def gymnast_display_events_and_notes(request, gymnast_id):
    """
    Renvoie deux listes d'évènements : ceux à venir et ceux passés.

    Args:
        gymnast_id  (int)    identifiant du gymnast
    """
    today = pendulum.now().date()
    next_event_list = Event.objects.filter(gymnasts=gymnast_id, date_begin__gte=today)
    previous_event_list = Event.objects.filter(
        gymnasts=gymnast_id, date_begin__lte=today
    )

    base_queryset = Note.objects.filter(gymnast=gymnast_id)
    if not request.user.groups.filter(name="trainer").exists():
        notes_list = base_queryset.filter(status=1)
    else:
        notes_list = base_queryset
    notes_list = notes_list.order_by("-created_at")

    last_notes_list = notes_list[:6]
    latest_published_note = (
        base_queryset.filter(status=1).order_by("-created_at").first()
    )

    context = {
        "next_event_list": next_event_list,
        "previous_event_list": previous_event_list,
        "last_notes_list": last_notes_list,
        "latest_published_note": latest_published_note,
        "gymnast_id": gymnast_id,
    }
    return render(request, "gymnasts/tabs/tab_events_and_notes.html", context)


@login_required
@require_http_methods(["GET"])
def gymnast_display_physiological(request, gymnast_id):
    """
    Renvoie les listes des tailles/poids, état d'esprit et blessures.

    Args:
        gymnast_id  (int)    identifiant du gymnast
    """
    number_of_injuries = Injury.objects.filter(gymnast=gymnast_id).count()
    start_date = pendulum.now().date().subtract(months=6)
    injuries_list = Injury.objects.filter(
        gymnast=gymnast_id, date__gte=start_date
    ).order_by("date")
    wellbeing_list = WellBeing.objects.filter(
        gymnast=gymnast_id, date__gte=start_date
    ).order_by("date")
    height_weight_list = HeightWeight.objects.filter(
        gymnast=gymnast_id, date__gte=start_date
    ).order_by("date")

    context = {
        "injuries_list": injuries_list,
        "number_of_injuries": number_of_injuries,
        "wellbeing_list": wellbeing_list,
        "height_weight_list": height_weight_list,
        "gymnast_id": gymnast_id,
    }
    return render(
        request, "gymnasts/tabs/tab_physiological_and_wellbeing.html", context
    )


@login_required
@require_http_methods(["GET"])
def gymnast_display_scores_chrono(request, gymnast_id):
    """
    Selectionne tous les scores réalisés par le gymnaste.
    Afin de ne pas avoir plusieurs valeurs pour une même date, nous faisons une
    moyenne par date.

    Args:
        gymnast_id  (int)    identifiant du gymnast

    TODO: limiter les intensités aux X derniers records/semaines/mois ?
    """
    start_date = pendulum.now().date().subtract(months=6)
    intensity_list = Intensity.objects.filter(gymnast=gymnast_id).order_by("date")
    chrono_list = Chrono.objects.filter(
        gymnast=gymnast_id, date__gte=start_date
    ).order_by("date")
    base_queryset = chrono_list.values("date").annotate(score_avg=Avg("tof"))
    today = pendulum.now().date()
    training_list = GymnastTraining.objects.filter(gymnast=gymnast_id, date__gte=today)

    context = {
        "intensity_list": intensity_list,
        "chrono_list": chrono_list,
        "chrono_10c": base_queryset.filter(chrono_type=0),
        "chrono_r1": base_queryset.filter(chrono_type=1),
        "chrono_r2": base_queryset.filter(chrono_type=2),
        "chrono_rf": base_queryset.filter(chrono_type=3),
        "training_list": training_list,
        "gymnast_id": gymnast_id,
    }
    return render(request, "gymnasts/tabs/tab_intensity_and_chronos.html", context)


@login_required
@require_http_methods(["GET"])
def gymnast_display_routine_statistics(request, gymnast_id):
    """
    Tag affichant les statistiques et informations de séries d'un gymnaste.

    Args:
        gymnast_id  (int)   identifiant de la classe Gymnast
    """
    gymnast = get_object_or_404(Gymnast, pk=gymnast_id)
    ghr_list = gymnast.has_routine.prefetch_related("routine").filter(
        Q(date_end__gte=date.today()) | Q(date_end__isnull=True)
    )

    has_routine_1 = ghr_list.filter(routine_type=1)
    has_routine_2 = ghr_list.filter(routine_type=2)
    has_routine_3 = ghr_list.filter(routine_type=3)
    has_routine_4 = ghr_list.filter(routine_type=4)
    has_routine_5 = ghr_list.filter(routine_type=5)

    routine_one_done_list = NumberOfRoutineDone.objects.filter(
        gymnast=gymnast_id, routine_type=1
    ).order_by("date")
    routine_two_done_list = NumberOfRoutineDone.objects.filter(
        gymnast=gymnast_id, routine_type=2
    ).order_by("date")
    score_list = Point.objects.filter(gymnast=gymnast_id).order_by("-event__date_begin")

    context = {
        "ghr_list": ghr_list,
        "has_routine_1": has_routine_1,
        "has_routine_2": has_routine_2,
        "has_routine_3": has_routine_3,
        "has_routine_4": has_routine_4,
        "has_routine_5": has_routine_5,
        "routine_one_done_list": routine_one_done_list,
        "routine_two_done_list": routine_two_done_list,
        "score_list": score_list,
        "score_routine1_list": score_list.filter(routine_type=1),
        "score_routine2_list": score_list.filter(routine_type=2),
        "score_routine3_list": score_list.filter(routine_type=3),
        "gymnast_id": gymnast_id,
    }
    return render(request, "gymnasts/tabs/tab_routines_and_scores.html", context)


@login_required
@require_http_methods(["GET", "POST"])
def link_routine_to_gymnast(request, gymnast_id=None):
    """Lie une série à un gymnaste

    Args:
        gymnast_id  (int)   identifiant de la classe Gymnast
    """

    if gymnast_id:
        gymnast = get_object_or_404(Gymnast, pk=gymnast_id)
        data = {
            "gymnast": gymnast_id,
            "gymnast_related": str(gymnast),
            "date_end": None,
        }
    else:
        gymnast = None
        data = {"date_end": None}

    if request.method == "POST":
        form = GymnastHasRoutineForm(request.POST)

        if form.is_valid():
            form.save()
            if not gymnast:
                gymnast = get_object_or_404(Gymnast, pk=form.cleaned_data["gymnast"])

            receiver = []
            functionality = ContentType.objects.get(model="gymnasthasroutine")
            for notification in gymnast.notifications.filter(
                functionality=functionality
            ):
                receiver.append(notification.user.email)

            send_mail(
                "Nouvelle série",
                "Une nouvelle série vous a été associée.",
                settings.EMAIL_HOST_USER,
                [gymnast.user.email, gymnast.email_trainer].append(receiver),
                fail_silently=False,
                html_message="""<p>Bonjour,</p>
                    <p>Une nouvelle série vous a été associée.</p><br />
                    <p>Excellente journée</p><p>Jarvis</p>""",
            )

            return HttpResponseRedirect(
                reverse("gymnast_details_tab", args=(gymnast_id, "routine"))
            )

    else:
        form = GymnastHasRoutineForm(instance=gymnast, initial=data)

    context = {"form": form, "gymnast_id": gymnast_id}
    return render(request, "gymnasts/link_to_routine.html", context)


@login_required
@require_http_methods(["GET", "POST"])
def gymnast_create_or_update(request, gymnast_id=None):
    """
    Formulaire de création et modification d'un gymnaste.

    Args:
        gymnast_id  (int)   Identifiant de la classe Gymnast
    """

    if gymnast_id and (
        request.user.is_superuser
        or (
            request.session.has_key("available_gymnast")
            and gymnast_id in request.session["available_gymnast"]
        )
    ):
        gymnast = get_object_or_404(Gymnast, pk=gymnast_id)
    else:
        gymnast = None

    if request.method == "POST":
        gymnast_form = GymnastForm(request.POST, instance=gymnast)

        if gymnast_form.is_valid():
            gymnast = gymnast_form.save()
            form_data = request.POST.dict()
            user_data = {}
            user_data["first_name"] = form_data["first_name"]
            user_data["last_name"] = form_data["last_name"]
            user_data["username"] = (
                form_data["first_name"].lower() + "_" + form_data["last_name"].lower()
            )
            user_data["email"] = form_data["email"].lower()
            user_data["is_active"] = True
            user_form = UserForm(user_data, instance=gymnast.user)

            if user_form.is_valid():
                user = user_form.save()

                gymnast_group, _ = Group.objects.get_or_create(name="gymnast")
                user.groups.add(gymnast_group)
                gymnast.user = user
                gymnast.save()

                # if not user.has_usable_password():
                #     user.set_password(gymnast.last_name.lower() + _ + str(gymnast.birthdate)[-2:])

            return HttpResponseRedirect(reverse("gymnast_details", args=(gymnast.pk,)))

        return render(request, "people/gymnasts/create.html", {"form": gymnast_form})

    form = GymnastForm(instance=gymnast)
    context = {"form": form, "gymnast_id": gymnast_id}
    return render(request, "gymnasts/create.html", context)


@login_required
@require_http_methods(["GET"])
def gymnast_display_skill(request, gymnast_id):
    """Tag affichant les statistiques de skill d'un gymnaste

    Le nombre de saut qu'il sait faire (total, par niveau, par rank, …), calcule la complétude, …

    .. todo:: Générer UNE fois la liste de skill que le gymnaste ne sait pas faire (1 query)
    et les counts puis, dans le template on parcourt plusieurs fois cette même liste mais on
    affiche conditionnellement (par age, par rank, ...)

    Il y a 4 étapes dans l'apprentissage :
        - skill confusion syndrom                       "No" - 0
        - avec aide (tapis, manip, …)                   "with help" - 1
        - sans aide ()                                  "without help" - 2
        - enchaîné (un saut avec et après)              "chained" - 3
        - maitrisé (dans n'importe quelle condition)    "masterised" - 4

    Args:
        gymnast_id  (int)   Identifiant de la classe Gymnast
    """

    context = {}
    gymnast = get_object_or_404(Gymnast, pk=gymnast_id)
    gymnast_nb_known_skills = gymnast.known_skills.distinct("skill").count()
    context = gymnast.get_informations_from_type("level")
    context.update(gymnast.get_informations_from_type("rank"))

    planned_skill = (
        Plan.objects.filter(gymnast=gymnast.id, educative__in=Skill.objects.all())
        .select_related("educative", "educative__skill")
        .order_by("-date", "educative__long_label")
    )

    context["planned_skill"] = planned_skill

    if gymnast.gender:
        context["skill_by_age"] = Skill.objects.filter(
            age_girl_masterised__lte=gymnast.age
        ).exclude(known_by__gymnast=gymnast.id)
    else:
        context["skill_by_age"] = Skill.objects.filter(
            age_boy_masterised__lte=gymnast.age
        ).exclude(known_by__gymnast=gymnast.id)

    learned_skills = (
        LearnedSkill.objects.filter(gymnast=gymnast_id)
        .select_related("skill")
        .order_by("skill_id", "-date")
        .distinct("skill_id")
    )

    # skill_learned_by_phase = [[]] * 5
    # print(skill_learned_by_phase)
    confused_skill = []
    skill_whith_help = []
    skill_without_help = []
    skill_chained = []
    skill_masterised = []
    for learned_skill in learned_skills:
        # print('Add skill for ' + str(learned_skill.learning_step) + ' phase')
        # skill_learned_by_phase[learned_skill.learning_step].append(learned_skill.skill)
        if learned_skill.learning_step == 0:
            confused_skill.append(learned_skill.skill)
        elif learned_skill.learning_step == 1:
            skill_whith_help.append(learned_skill.skill)
        elif learned_skill.learning_step == 2:
            skill_without_help.append(learned_skill.skill)
        elif learned_skill.learning_step == 3:
            skill_chained.append(learned_skill.skill)
        else:
            skill_masterised.append(learned_skill.skill)

    # for i in range(0,4):
    #     print(skill_learned_by_phase[i])

    # context["confused_skill"] = skill_learned_by_phase[0]
    # context["skill_whith_help"] = skill_learned_by_phase[1]
    # context["skill_without_help"] = skill_learned_by_phase[2]
    # context["skill_chained"] = skill_learned_by_phase[3]
    # context["skill_masterised"] = skill_learned_by_phase[4]
    context["confused_skill"] = confused_skill
    context["skill_whith_help"] = skill_whith_help
    context["skill_without_help"] = skill_without_help
    context["skill_chained"] = skill_chained
    context["skill_masterised"] = skill_masterised

    context["gymnast"] = gymnast
    context["gymnast_nb_known_skills"] = gymnast_nb_known_skills
    context["user_is_trainer"] = request.user.groups.filter(
        name="trainer"
    ).exists()  # TODO: utiliser les {{ perms }}
    return render(request, "gymnasts/tabs/tab_skills.html", context)