from django.shortcuts import render, get_object_or_404
from django.contrib.auth.decorators import login_required
from django.views.decorators.http import require_http_methods
from django.http import HttpResponse, HttpResponseRedirect
from django.db.models import Q, Min, Avg, Max, Sum
from django.urls import reverse

from django.contrib.auth import get_user_model
User = get_user_model()

from ultron.people.models import Gymnast
from ultron.planning.models import Event
from ultron.objective.models import Skill

from .models import (
    Plan,
    Note,
    Point,
    Chrono,
    Accident,
    MindState,
    LearnedSkill,
    HeightWeight,
    ChronoDetails,
    NumberOfRoutineDone,
)

from .forms import (
    PlanForm,
    NoteForm,
    ScoreForm,
    ChronoForm,
    AccidentForm,
    MindStateForm,
    HeightWeightForm,
    LearnedSkillForm,
    NumberOfRoutineDoneForm,
)

from datetime import date, datetime
import pendulum


@login_required
@require_http_methods(["GET"])
def jump_chrono_details(request, chrono_id):
    """Récupère toutes les informations d'un chrono"""

    chrono = get_object_or_404(Chrono, pk=chrono_id)

    sum_value = chrono.details.all().aggregate(total=Sum('value'))
    chrono.score = sum_value['total']
    if chrono.score_type == 0:
        chrono.tof = Chrono.compute_tof(sum_value['total'])
    chrono.save()

    mean_value = chrono.details.all().aggregate(Avg('value'))
    tmp_min_value = chrono.details.all().aggregate(Min('value'))
    tmp_max_value = chrono.details.all().aggregate(Max('value'))
    min_value = mean_value['value__avg'] - (tmp_min_value['value__min'] / 20)
    max_value = mean_value['value__avg'] - (tmp_max_value['value__max'] / 20)
    context = {"chrono": chrono, "average_value": mean_value['value__avg'], "min_value": min_value, "max_value": max_value}
    return render(request, "followup/chronos/details.html", context)


@login_required
@require_http_methods(["GET"])
def chrono_listing(request, gymnast_id=None):
    """
    Si la personne connectée est un entraîneur, la fonction récupère la liste des chronos d'un
    gymnaste précis ou de tout le monde.
    Si la personne connectée est un gymnaste, la fonction récupère la liste de ses chronos à
    lui/elle.

    Args:
        gymnast_id  (int)   identifiant d'un gymnaste
    """

    gymnast = None
    if request.user.groups.filter(name='trainer').exists():
        if gymnast_id:
            chrono_list = Chrono.objects.filter(gymnast=gymnast_id)
            gymnast = Gymnast.objects.get(pk=gymnast_id)
        else:
            chrono_list = Chrono.objects.all()
    else:
        chrono_list = Chrono.objects.filter(
                Q(gymnast__last_name=request.user.last_name)
                & Q(gymnast__first_name=request.user.first_name)
            )

    context = {"chrono_list": chrono_list, "gymnast": gymnast}
    return render(request, "followup/chronos/list.html", context)


@login_required
@require_http_methods(["GET"])
def note_listing(request, gymnast_id=None):
    """
    Si la personne connectée est un entraîneur, la fonction récupère la liste des notes d'un
    gymnaste précis ou de tout le monde.
    Si la personne connectée est un gymnaste, la fonction récupère la liste de ses notes à
    lui/elle.
    """

    gymnast = None
    if request.user.groups.filter(name='trainer').exists():
        if gymnast_id:
            note_list = Note.objects.filter(gymnast=gymnast_id)
            gymnast = Gymnast.objects.get(pk=gymnast_id)
        else:
            note_list = Note.objects.all()
    else:
        note_list = Note.objects.filter(
                Q(gymnast__last_name=request.user.last_name)
                & Q(gymnast__first_name=request.user.first_name)
            )

    context = {"note_list": note_list, "gymnast": gymnast}
    return render(request, "followup/notes/list.html", context)


@login_required
@require_http_methods(["GET"])
def note_details(request, note_id):
    """
    Récupère toutes les informations d'un note.
    """
    note = get_object_or_404(Note, pk=note_id)
    return render(request, "followup/notes/details.html", {"note": note})


@login_required
@require_http_methods(["GET", "POST"])
def note_create_or_update(request, note_id=None, gymnast_id=None):
    """Création ou modification d'un chrono

    Args:
        note_id     (int)   identifiant d'une note
        gymnast_id  (int)   identifiant d'un gymnaste

    TODO: pq ne puis-je pas récuperer l'idantifiant du caoch via le form. (cf ##..)
    """

    coach = User.objects.get(pk=request.user.id)##..
    if note_id:
        note = get_object_or_404(Note, pk=note_id)
        data = {
            "coach": coach.id,##..
            "gymnast": note.gymnast.id,
            "gymnast_related": str(note.gymnast),
        }
    else:
        note = None
        data = {
            "coach": coach.id,##..
        }
        if gymnast_id is not None:
            gymnast = get_object_or_404(Gymnast, pk=gymnast_id)
            data["gymnast"] = gymnast_id
            data["gymnast_related"] = str(gymnast)

    if request.method == "POST":
        form = NoteForm(request.POST, instance=note)

        if form.is_valid():
            new_note = form.save()
            return HttpResponseRedirect(reverse("gymnast_details_tab", args=(new_note.gymnast.id, 'event')))
        else:
            return render(request, "followup/notes/create.html", {'form': form})

    form = NoteForm(instance=note, initial=data)
    context = {"form": form, "note_id": note_id}
    return render(request, "followup/notes/create.html", context)


@login_required
@require_http_methods(["GET", "POST"])
def chrono_create_or_update(request, chrono_id=None, gymnast_id=None):
    """Création ou modification d'un chrono"""

    if chrono_id:
        chrono = get_object_or_404(Chrono, pk=chrono_id)
        data = {
            "gymnast": chrono.gymnast.id,
            "gymnast_related": str(chrono.gymnast),
        }
    else:
        chrono = None
        data = None
        if gymnast_id is not None:
            gymnast = get_object_or_404(Gymnast, pk=gymnast_id)
            data = {"gymnast": gymnast_id, "gymnast_related": gymnast}

    if request.method == "POST":
        form = ChronoForm(request.POST, instance=chrono)

        if form.is_valid():
            new_chrono = form.save(commit=False)

            if new_chrono.score_type == 1:
                new_chrono.tof = new_chrono.score
            else:
                new_chrono.tof = Chrono.compute_tof(new_chrono.score)

            new_chrono.save()
            return HttpResponseRedirect(reverse("gymnast_details_tab", args=(new_chrono.gymnast.id, 'scores')))
        else:
            return render(request, "followup/chronos/create.html", {'form': form})

    form = ChronoForm(instance=chrono, initial=data)
    context = {"form": form, "chrono_id": chrono_id}
    return render(request, "followup/chronos/create.html", context)


@login_required
@require_http_methods(["POST"])
def gymnast_learn_skill(request):
    """
    Lie un gymnast à une figure.
    """
    # utiliser un FORM pour cette fonction.
    gymnast_id = request.POST.get("gymnast_id", None)
    skill_id = request.POST.get("skill_id", None)
    learning_step = request.POST.get("learning_step", 0)

    if gymnast_id and skill_id:
        gymnast = get_object_or_404(Gymnast, pk=gymnast_id)
        skill = Skill.objects.get(pk=skill_id)
        learned_skill = LearnedSkill(
            gymnast=gymnast, skill=skill, learning_step=learning_step, date=datetime.now()
        )
        learned_skill.save()
        return HttpResponse(status=200)

    if gymnast_id:
        print("Error : can not link Gymnast and skill. Missing Skill_ID.")
    else:
        print("Error : can not link Gymnast and skill. Missing Gymnast_ID.")
    return HttpResponse(status=500)


@login_required
@require_http_methods(["GET", "POST"])
def learnedskill_create_or_update(request, gymnast_id=None):
    """
    Formulaire de creation et modification d'un lien skill/gymnaste.
    """

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

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

        if form.is_valid():
            form.save()
            return HttpResponseRedirect(
                reverse("gymnast_details", args=(form.cleaned_data["gymnast"].id,))
            )
        else:
            render(request, "followup/learnedskills/create.html", {"form": form})

    form = LearnedSkillForm(initial=data)
    context = {"form": form, "gymnast_id": gymnast_id}
    return render(request, "followup/learnedskills/create.html", context)


@login_required
@require_http_methods(["GET", "POST"])
def score_create_or_update(request, score_id=None, gymnast_id=None):
    """
    Formulaire de création d'un nouveau score.
    """

    if score_id:
        score = get_object_or_404(Point, pk=score_id)
        data = {
            "gymnast_related": str(score.gymnast),
            "event_related": str(score.event),
        }
    else:
        score = None
        data = None
        if gymnast_id is not None:
            gymnast = get_object_or_404(Gymnast, pk=gymnast_id)
            data = {"gymnast": gymnast_id, "gymnast_related": str(gymnast)}

    if request.method == "POST":
        form = ScoreForm(request.POST, instance=score)

        if form.is_valid():
            form.save()

            if form.cleaned_data['add_to_chrono']:
                new_chrono = Chrono(
                    gymnast=form.cleaned_data["gymnast"],
                    chrono_type=form.cleaned_data["routine_type"],
                    score_type=1,
                    score=form.cleaned_data["point_time_of_flight"],
                    tof=form.cleaned_data["point_time_of_flight"],
                    date=form.cleaned_data["event"].date_begin,
                )
                new_chrono.save()

            return HttpResponseRedirect(
                reverse(
                    "gymnast_details_tab",
                    args=(form.cleaned_data["gymnast"].id, 'scores')
                )
            )
        else:
            render(request, "followup/scores/create.html", {"form": form})

    form = ScoreForm(instance=score, initial=data)
    context = {"form": form, "score_id": score_id}
    return render(request, "followup/scores/create.html", context)


@login_required
@require_http_methods(["GET"])
def score_listing(request, gymnast_id=None):
    """
    Revoie la liste des scores
    """

    pattern = request.GET.get("pattern", None)
    gymnast = None

    if pattern:
        score_list = Point.objects.filter(
            Q(event__icontains=pattern) | Q(gymnast__icontains=pattern)
        )
    elif gymnast_id:
        score_list = Point.objects.filter(gymnast=gymnast_id)
        gymnast = get_object_or_404(Gymnast, pk=gymnast_id)
    else:
        score_list = Point.objects.all()

    context = {"score_list": score_list, "gymnast": gymnast}
    return render(request, "followup/scores/list.html", context)


@login_required
@require_http_methods(["GET"])
def accident_listing(request):
    """
    Récupère la liste des accidents.
    Si c'est un gymnaste qui est connecté, il ne peut récupérer que la liste de ses accidents.
    Si c'est un autre utilisateur (entraîneur), la liste peut répondre à un pattern si celui-ci est
    définit.
    """

    if request.user.groups.filter(name='trainer').exists():
        pattern = request.GET.get("pattern", None)
        if pattern:
            accident_list = Accident.objects.filter(
                Q(gymnast__last_name__icontains=pattern)
                | Q(gymnast__first_name__icontains=pattern)
            )
        else:
            accident_list = Accident.objects.all()
    else:
        accident_list = Accident.objects.filter(
                Q(gymnast__last_name=request.user.last_name)
                & Q(gymnast__first_name=request.user.first_name)
            )

    context = {"accident_list": accident_list}
    return render(request, "followup/accidents/list.html", context)


@login_required
@require_http_methods(["GET", "POST"])
def accident_create_or_update(request, accident_id=None, gymnast_id=None):
    """
    Formulaire de création d'un nouvel accident.
    """

    if accident_id:
        accident = get_object_or_404(Accident, pk=accident_id)
        data = {
            "gymnast_related": accident.gymnast,
            "skill_related": accident.skill,
        }
    else:
        accident = None
        data = None
        if gymnast_id is not None:
            gymnast = get_object_or_404(Gymnast, pk=gymnast_id)
            data = {"gymnast": gymnast_id, "gymnast_related": str(gymnast)}

    if request.method == "POST":
        form = AccidentForm(request.POST, instance=accident)

        if form.is_valid():
            accident = form.save()
            return HttpResponseRedirect(reverse("accident_details", args=(accident.pk,)))
        else:
            return render(request, "followup/accidents/create.html", {"form": form})

    form = AccidentForm(instance=accident, initial=data)
    context = {"form": form, "accident_id": accident_id}
    return render(request, "followup/accidents/create.html", context)


@login_required
@require_http_methods(["GET"])
def accident_detail(request, accident_id):
    """
    Récupère toutes les informations d'un accident.
    """
    accident = get_object_or_404(Accident, pk=accident_id)
    return render(request, "followup/accidents/details.html", {"accident": accident})


@login_required
@require_http_methods(["GET"])
def mindstate_listing(request, gymnast_id=None):
    """
    Récupère la liste des évaluations mentales suivant (d'un gymnaste si définit en paramètre).
    """
    gymnast = None
    if gymnast_id:
        mindstate_list = MindState.objects.filter(gymnast=gymnast_id)
        gymnast = get_object_or_404(Gymnast, pk=gymnast_id)
    else:
        mindstate_list = MindState.objects.all()

    context = {"mindstate_list": mindstate_list, "gymnast": gymnast}
    return render(request, "followup/mindstates/list.html", context)


@login_required
@require_http_methods(["GET", "POST"])
def mindstate_create_or_update(
    request, mindstate_id=None, gymnast_id=None, event_id=None
):
    """
    Formulaire de création d'un nouvel accident.
    """

    if mindstate_id:
        mindstate = get_object_or_404(MindState, pk=mindstate_id)
        data = {"gymnast_related": mindstate.gymnast, "event_related": mindstate.event}
    else:
        mindstate = None
        data = None
        if gymnast_id is not None:
            gymnast = get_object_or_404(Gymnast, pk=gymnast_id)
            data = {"gymnast": gymnast_id, "gymnast_related": str(gymnast)}
        if event_id is not None:
            event = get_object_or_404(Event, pk=event_id)
            data = {"event": event_id, "event_related": str(event)}

    if request.method == "POST":
        form = MindStateForm(request.POST, instance=mindstate)

        if form.is_valid():
            mindstate = form.save()
            return HttpResponseRedirect(reverse("mindstate_details", args=(mindstate.pk,)))
        else:
            return render(request, "followup/mindstates/create.html", {"form": form})

    form = MindStateForm(instance=mindstate, initial=data)
    context = {"form": form, "mindstate_id": mindstate_id}
    return render(request, "followup/mindstates/create.html", context)


@login_required
@require_http_methods(["GET"])
def mindstate_detail(request, mindstate_id):
    """
    Récupère toutes les informations d'une évaluation psychologique.
    """
    mindstate = get_object_or_404(MindState, pk=mindstate_id)
    return render(request, "followup/mindstates/details.html", {"mindstate": mindstate})


@login_required
@require_http_methods(["GET"])
def heightweight_listing(request, gymnast_id=None):
    """
    Récupère la liste des couples taille/poids suivant (d'un gymnast si définit en paramètre).
    """
    gymnast = None
    if gymnast_id:
        heightweight_list = HeightWeight.objects.filter(gymnast=gymnast_id)
        gymnast = Gymnast.objects.get(pk=gymnast_id)
    else:
        heightweight_list = HeightWeight.objects.all()

    context = {"heightweight_list": heightweight_list, "gymnast": gymnast}
    return render(request, "followup/heightweight/list.html", context)


@login_required
@require_http_methods(["GET", "POST"])
def heightweight_create_or_update(request, heightweight_id=None, gymnast_id=None):
    """
    Formulaire de creation et modification d'un couple taille/couple.
    """

    if heightweight_id:
        heightweight = get_object_or_404(HeightWeight, pk=heightweight_id)
        data = {"gymnast_related": heightweight.gymnast}
    else:
        heightweight = None
        data = None
        if gymnast_id:
            heightweight = (
                HeightWeight.objects.filter(gymnast=gymnast_id)
                .order_by("-date")
                .first()
            )
            gymnast = get_object_or_404(Gymnast, pk=gymnast_id)
            data = {"gymnast": gymnast_id, "gymnast_related": str(gymnast)}

    if request.method == "POST":
        form = HeightWeightForm(request.POST, instance=heightweight)

        if form.is_valid():
            form.save()
            return HttpResponseRedirect(
                reverse("gymnast_details_tab", args=(form.cleaned_data["gymnast"].id, 'physiological'))
            )
        else:
            print(form.errors)
            return render(request, "followup/heightweight/create.html", {"form": form})

    form = HeightWeightForm(instance=heightweight, initial=data)
    context = {
        "form": form,
        "gymnast_id": gymnast_id,
        "heightweight_id": heightweight_id,
    }
    return render(request, "followup/heightweight/create.html", context)


@login_required
@require_http_methods(["GET"])
def routine_done_listing(request, gymnast_id=None):
    """
    Liste tous les record de la table NumberOfRoutineDone
    """
    if gymnast_id:
        gymnast = get_object_or_404(Gymnast, pk=gymnast_id)
        routine_done_list = gymnast.number_of_routine_done.all()
    else:
        gymnast = None
        routine_done_list = NumberOfRoutineDone.objects.all()

    context = {"routine_done_list": routine_done_list, "gymnast": gymnast}
    return render(request, "followup/routinedone/list.html", context)


@require_http_methods(["POST"])
def increment_routinedone(request):
    """
    Incrémente le nombre de routine faite pour aujourd'hui et incrémente, si besoin, le nombre
    de routine réussie
    """

    data = {
        'gymnast': get_object_or_404(Gymnast, pk=request.POST.get("gymnast_id", None)),
        'routine_type': request.POST.get("routine_type", 1),
        'date': request.POST.get("date", date.today()),
    }

    routine = data['gymnast'].has_routine.filter(routine_type=request.POST.get("routine_type", 1)).first()
    data['routine'] = routine.routine

    routinedone, _ = NumberOfRoutineDone.objects.get_or_create(date=data["date"], gymnast=data["gymnast"], routine_type=data["routine_type"])
    data["number_of_try"] = routinedone.number_of_try + 1
    success = request.POST.get("success", 0)
    if int(success) == 1:
        data["number_of_successes"] = routinedone.number_of_successes + 1
    else:
        data["number_of_successes"] = routinedone.number_of_successes
    form = NumberOfRoutineDoneForm(data, instance=routinedone)

    if form.is_valid():
        form.save()
        return HttpResponse(status=200)
    else:
        return HttpResponse(status=406)


@login_required
@require_http_methods(["GET", "POST"])
def routinedone_create_or_update(request, routinedone_id=None, gymnast_id=None):
    """Création ou modification d'un chrono"""

    if routinedone_id:
        routinedone = get_object_or_404(NumberOfRoutineDone, pk=routinedone_id)
        data = {
            "gymnast": routinedone.gymnast.id,
            "gymnast_related": str(routinedone.gymnast),
            "routine": routinedone.routine.id,
            "routine_related": str(routinedone.routine),
        }
    else:
        routinedone = None
        data = None
        if gymnast_id is not None:
            gymnast = get_object_or_404(Gymnast, pk=gymnast_id)
            data = {"gymnast": gymnast_id, "gymnast_related": gymnast}

    if request.method == "POST":
        form = NumberOfRoutineDoneForm(request.POST, instance=routinedone)

        if form.is_valid():
            form.save()
            return HttpResponseRedirect(
                reverse("gymnast_details", args=(form.cleaned_data["gymnast"].id,))
            )
        else:
            return render(request, "followup/routinedone/create.html", {"form": form})


    form = NumberOfRoutineDoneForm(instance=routinedone, initial=data)
    context = {"form": form, "routinedone_id": routinedone_id}
    return render(request, "followup/routinedone/create.html", context)


@login_required
@require_http_methods(["GET", "POST"])
def plan_create_or_update(request, plan_id=None, gymnast_id=None, skill_id=None):
    """Création d'un plan.

    Args:
        plan_id (int):      identifiant d'un plan (classe <Plan>).
        gymnast_id (int):   identifiant d'un gymnaste (classe <Gymnast>).
        skill_id (int):     identifiant d'un skill (classe <Skill>).
    """

    if plan_id:
        plan = get_object_or_404(Plan, pk=plan_id)
        data = {
            "gymnast": plan.gymnast.id,
            "gymnast_related": str(plan.gymnast),
            "skill": plan.skill.id,
            "skill_related": str(plan.skill),
        }
    else:
        plan = None
        data = {}

        if gymnast_id:
            gymnast = get_object_or_404(Gymnast, pk=gymnast_id)
            data["gymnast"] = gymnast_id
            data["gymnast_related"] = str(gymnast)

        if skill_id:
            skill = get_object_or_404(Skill, pk=skill_id)
            data["educative"] = skill_id
            data["educative_related"] = str(skill)

    if request.method == "POST":
        form = PlanForm(request.POST, instance=plan)

        if form.is_valid():
            plan = form.save()
            return HttpResponseRedirect(
                reverse("gymnast_details", args=(form.cleaned_data["gymnast"].id,))
            )
        else:
            return render(request, "followup/plan/create.html", {"form": form})

    form = PlanForm(instance=plan, initial=data)
    context = {"form": form, "plan_id": plan_id}
    return render(request, "followup/plan/create.html", context)