import datetime

import plotly
import plotly.graph_objs as go
from django.contrib.auth.mixins import LoginRequiredMixin
from django.shortcuts import get_object_or_404
from django.urls import reverse
from django.views import generic

from gym.forms import RoundForm
from gym.mixins import SessionResetMixin, QuickActionsMixin
from gym.models import Room, Equipment, Setting, Session, Round, TheoreticalMax


class RoomListView(LoginRequiredMixin, SessionResetMixin, generic.ListView):
    queryset = Room.objects.all().order_by("name")
    context_object_name = "rooms"
    template_name = "gym/rooms.html"


class RoomDetailView(
    LoginRequiredMixin, QuickActionsMixin, SessionResetMixin, generic.DetailView
):
    model = Room
    context_object_name = "room"
    template_name = "gym/room.html"

    def get_quick_actions(self):
        quick_actions = [
            {
                "url": reverse("rooms-list"),
                "category": "secondary",
                "display": "Liste des salles",
            },
            {
                "url": "{}?room={}".format(reverse("session-start"), self.object.pk),
                "category": "primary",
                "display": "Commencer une séance",
            },
            {
                "url": "{}?room={}".format(reverse("equipment-create"), self.object.pk),
                "category": "success",
                "display": "Ajouter une machine",
            },
        ]

        if self.object.latitude and self.object.longitude:
            from user_agents import parse

            user_agent = parse(self.request.META.get("HTTP_USER_AGENT"))

            if user_agent.is_mobile:
                url = f"waze://?ll={self.object.latitude},{self.object.longitude}&navigate=yes"
                name = "Waze"

                quick_actions.append(
                    {
                        "url": f"here-location://{self.object.latitude},{self.object.longitude}",
                        "category": "info",
                        "display": "Here WeGo",
                        "icon": "fas fa-location-arrow",
                    }
                )
            else:
                url = (
                    f"https://www.google.com/maps/place/{self.object.latitude},{self.object.longitude}"
                    f"/@{self.object.latitude},{self.object.longitude},18z"
                )
                name = "Google Maps"

            quick_actions.append(
                {
                    "url": url,
                    "category": "info",
                    "display": name,
                    "icon": "fas fa-location-arrow",
                }
            )
        return quick_actions

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context["sessions"] = self.object.sessions.all().order_by("-start")
        return context


class EquipmentDetailView(LoginRequiredMixin, QuickActionsMixin, generic.DetailView):
    model = Equipment
    context_object_name = "equipment"
    template_name = "gym/equipment.html"
    session = None

    def get_quick_actions(self):
        lst = []

        if self.session:
            lst.extend(
                [
                    {
                        "url": reverse("session-detail", args=(self.session.pk,)),
                        "category": "secondary",
                        "display": "Retourner à la séance",
                    },
                    {
                        "url": "{}?equipment={}".format(
                            reverse("round-create"), self.object.pk
                        ),
                        "category": "primary",
                        "display": "Commencer une série",
                    },
                ]
            )
        else:
            lst.append(
                {
                    "url": reverse("room-detail", args=(self.object.room.pk,)),
                    "category": "secondary",
                    "display": "Retourner à la salle",
                }
            )
        lst.extend(
            [
                {
                    "url": "{}?equipment={}".format(
                        reverse("setting-create"), self.object.pk
                    ),
                    "category": "success",
                    "display": "Ajouter un réglage",
                },
                {
                    "url": "{}?equipment={}".format(
                        reverse("theoretical-max-create"), self.object.pk
                    ),
                    "category": "success",
                    "display": "Ajouter un max théorique",
                },
            ]
        )

        if self.request.user.is_staff:
            lst.append(
                {
                    "url": reverse(
                        "admin:gym_equipment_change", args=(self.object.pk,)
                    ),
                    "category": "warning",
                    "display": "Éditer la machine",
                }
            )

        return lst

    def dispatch(self, request, *args, **kwargs):
        session_pk = self.request.session.get("session_pk")
        if session_pk:
            self.session = Session.objects.get(pk=session_pk)
        return super().dispatch(request, *args, **kwargs)

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        if self.session:
            context["session"] = self.session.pk
            context["rounds"] = Round.objects.filter(
                session=self.session, equipment=self.get_object()
            )
        return context


class EquipmentCreateView(LoginRequiredMixin, QuickActionsMixin, generic.CreateView):
    model = Equipment
    fields = ["room", "name", "default_work_form", "unit", "default_repetition_number"]
    template_name = "gym/equipment_edit.html"
    room = None

    def get_quick_actions(self):
        return [
            {
                "url": reverse("room-detail", args=(self.room.pk,)),
                "category": "secondary",
                "display": "Retourner à la salle",
            }
        ]

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context["room"] = self.room
        return context

    def get_success_url(self):
        return reverse("equipment-detail", kwargs={"pk": self.object.pk})

    def dispatch(self, request, *args, **kwargs):
        default_room_id = self.request.GET.get("room")
        if default_room_id:
            self.room = get_object_or_404(Room, pk=default_room_id)

        return super().dispatch(request, *args, **kwargs)

    def get_initial(self):
        initial = super().get_initial()
        initial["room"] = self.room

        return initial


class SettingCreateView(LoginRequiredMixin, QuickActionsMixin, generic.CreateView):
    model = Setting
    fields = ["equipment", "name", "value"]
    template_name = "gym/setting_edit.html"
    equipment = None

    def get_quick_actions(self):
        return [
            {
                "url": reverse("equipment-detail", args=(self.equipment.pk,)),
                "category": "secondary",
                "display": "Retourner à la machine",
            }
        ]

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context["title"] = "Ajouter"
        context["equipment"] = self.equipment
        return context

    def dispatch(self, request, *args, **kwargs):
        default_equipment_id = self.request.GET.get("equipment")
        if default_equipment_id:
            self.equipment = get_object_or_404(Equipment, pk=default_equipment_id)

        return super().dispatch(request, *args, **kwargs)

    def get_initial(self):
        initial = super().get_initial()
        initial["equipment"] = self.equipment

        return initial

    def get_success_url(self):
        return reverse("equipment-detail", kwargs={"pk": self.object.equipment.pk})


class SettingUpdateView(LoginRequiredMixin, QuickActionsMixin, generic.UpdateView):
    model = Setting
    fields = ["equipment", "name", "value"]
    template_name = "gym/setting_edit.html"

    def get_quick_actions(self):
        return [
            {
                "url": reverse("equipment-detail", args=(self.object.equipment.pk,)),
                "category": "secondary",
                "display": "Retourner à la machine",
            }
        ]

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context["edit"] = True
        context["title"] = "Modifier"
        context["equipment"] = self.object.equipment
        return context

    def get_success_url(self):
        return reverse("equipment-detail", kwargs={"pk": self.object.equipment.pk})


class SettingDeleteView(LoginRequiredMixin, generic.DeleteView):
    model = Setting
    template_name = "gym/confirm_delete.html"

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context["article"] = "une"
        context["name"] = "série"
        context["message"] = (
            "Êtes-vous sûr de vouloir supprimer le réglage "
            '<code>{}</code> pour la machine "{}" ?'.format(
                self.object, self.object.equipment
            )
        )
        return context

    def get_success_url(self):
        return reverse("equipment-detail", kwargs={"pk": self.object.equipment.pk})


class TheoreticalMaxCreateView(
    LoginRequiredMixin, QuickActionsMixin, generic.CreateView
):
    model = TheoreticalMax
    fields = ["equipment", "date", "value"]
    template_name = "gym/theoretical_max_edit.html"
    equipment = None

    def get_quick_actions(self):
        return [
            {
                "url": reverse("equipment-detail", args=(self.equipment.pk,)),
                "category": "secondary",
                "display": "Retourner à la machine",
            }
        ]

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context["title"] = "Ajouter"
        context["equipment"] = self.equipment
        return context

    def dispatch(self, request, *args, **kwargs):
        default_equipment_id = self.request.GET.get("equipment")
        if default_equipment_id:
            self.equipment = get_object_or_404(Equipment, pk=default_equipment_id)

        return super().dispatch(request, *args, **kwargs)

    def get_initial(self):
        initial = super().get_initial()
        initial["equipment"] = self.equipment
        initial["date"] = datetime.date.today()

        return initial

    def get_success_url(self):
        return reverse("theoretical-max-list", kwargs={"pk": self.object.equipment.pk})


class TheoreticalMaxListView(LoginRequiredMixin, QuickActionsMixin, generic.ListView):
    model = TheoreticalMax
    template_name = "gym/theoretical_max_list.html"
    context_object_name = "maxs"
    equipment = None

    def dispatch(self, request, *args, **kwargs):
        pk = self.kwargs.pop("pk")
        self.equipment = get_object_or_404(Equipment, pk=pk)

        return super().dispatch(request, *args, **kwargs)

    def get_queryset(self):
        return TheoreticalMax.objects.filter(equipment=self.equipment).order_by("date")

    def get_quick_actions(self):
        return [
            {
                "url": reverse("equipment-detail", args=(self.equipment.pk,)),
                "category": "secondary",
                "display": "Retourner à la machine",
            },
            {
                "url": "{}?equipment={}".format(
                    reverse("theoretical-max-create"), self.equipment.pk
                ),
                "category": "success",
                "display": "Ajouter un max théorique",
            },
        ]

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)

        data = [
            go.Scatter(
                x=[max.date for max in self.get_queryset()],
                y=[max.value for max in self.get_queryset()],
            )
        ]
        layout = go.Layout(
            title="Évolution du max théorique",
            yaxis={"title": "Charge ({})".format(self.equipment.unit.name)},
            xaxis={"title": "Date"},
        )
        figure = {"data": data, "layout": layout}
        graph = plotly.offline.plot(figure, auto_open=False, output_type="div")

        context["graph"] = graph
        context["equipment"] = self.equipment
        return context


class SessionCreateView(LoginRequiredMixin, QuickActionsMixin, generic.CreateView):
    model = Session
    fields = ["room", "start", "default_theoretical_max_percentage"]
    template_name = "gym/session_edit.html"
    room = None

    def get_quick_actions(self):
        room_pk = self.room.pk
        return [
            {
                "url": reverse("room-detail", args=(room_pk,)),
                "category": "secondary",
                "display": "Retourner à la salle",
            }
        ]

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context["title"] = "Démarrer"
        context["room"] = self.room
        return context

    def get_success_url(self):
        return reverse("session-detail", kwargs={"pk": self.object.pk})

    def dispatch(self, request, *args, **kwargs):
        self.room = get_object_or_404(Room, pk=self.request.GET.get("room"))
        return super().dispatch(request, *args, **kwargs)

    def get_initial(self):
        initial = super().get_initial()
        initial["room"] = self.room
        initial["start"] = datetime.datetime.now()

        return initial


class SessionDetailView(LoginRequiredMixin, QuickActionsMixin, generic.DetailView):
    model = Session
    context_object_name = "session"
    template_name = "gym/session_detail.html"

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        session = self.get_object()

        context["used_equipments"] = {
            k: Round.objects.filter(equipment=k, session=session).count()
            for k in Equipment.objects.filter(rounds__session=self.get_object())
        }

        return context

    def get_quick_actions(self):
        room_pk = self.get_object().room.pk
        return [
            {
                "url": reverse("room-detail", args=(room_pk,)),
                "category": "secondary",
                "display": "Retourner à la salle",
            },
            {
                "url": "{}?room={}".format(reverse("equipment-create"), room_pk),
                "category": "success",
                "display": "Ajouter une machine",
            },
        ]

    def dispatch(self, request, *args, **kwargs):
        request.session["session_pk"] = self.get_object().pk
        return super().dispatch(request, *args, **kwargs)


class RoundCreateView(LoginRequiredMixin, QuickActionsMixin, generic.CreateView):
    model = Round
    template_name = "gym/round_edit.html"
    equipment = None
    session = None
    form_class = RoundForm

    def get_quick_actions(self):
        return [
            {
                "url": reverse("equipment-detail", args=(self.equipment.pk,)),
                "category": "secondary",
                "display": "Retourner à la machine",
            }
        ]

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context["title"] = "Commencer"
        context["equipment"] = self.equipment
        return context

    def dispatch(self, request, *args, **kwargs):
        self.equipment = get_object_or_404(
            Equipment, pk=self.request.GET.get("equipment")
        )
        session_pk = self.request.session.get("session_pk")
        if session_pk:
            self.session = Session.objects.get(pk=session_pk)

        return super().dispatch(request, *args, **kwargs)

    def get_initial(self):
        theoretical_max_percentage = self.session.default_theoretical_max_percentage
        initial = super().get_initial()
        initial["equipment"] = self.equipment
        initial["session"] = self.session
        last_round = self.equipment.rounds.filter(
            session=self.session
        ).last()  # type: Round
        initial["theoretical_max_percentage"] = theoretical_max_percentage

        if last_round:
            initial["repetition_number"] = last_round.repetition_number
            initial["work_form"] = last_round.work_form
            initial["chosen_weight"] = last_round.chosen_weight
        else:
            initial["repetition_number"] = (
                self.equipment.default_repetition_number or 12
            )
            initial["work_form"] = self.equipment.default_work_form
            proposed_weight = 0
            theoretical_max = self.equipment.last_theoretical_max
            if theoretical_max:
                proposed_weight = (
                    theoretical_max.value * theoretical_max_percentage / 100
                )
            initial["chosen_weight"] = proposed_weight

        return initial

    def get_success_url(self):
        return reverse("equipment-detail", kwargs={"pk": self.object.equipment.pk})


class RoundUpdateView(LoginRequiredMixin, QuickActionsMixin, generic.UpdateView):
    model = Round
    fields = [
        "equipment",
        "session",
        "theoretical_max_percentage",
        "chosen_weight",
        "repetition_number",
        "work_form",
        "notes",
    ]
    template_name = "gym/round_edit.html"

    def get_quick_actions(self):
        return [
            {
                "url": reverse("equipment-detail", args=(self.object.equipment.pk,)),
                "category": "secondary",
                "display": "Retourner à la machine",
            }
        ]

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context["edit"] = True
        context["title"] = "Modifier"
        context["equipment"] = self.object.equipment
        return context

    def get_success_url(self):
        return reverse("equipment-detail", kwargs={"pk": self.object.equipment.pk})


class RoundDeleteView(LoginRequiredMixin, generic.DeleteView):
    model = Round
    template_name = "gym/confirm_delete.html"

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context["article"] = "une"
        context["name"] = "série"
        context["message"] = (
            "Êtes-vous sûr de vouloir supprimer "
            'la série <code>{}, {}x{}{}</code> pour la séance "{}" ?'.format(
                self.object.equipment,
                self.object.repetition_number,
                self.object.chosen_weight,
                self.object.equipment.unit,
                self.object.session,
            )
        )
        return context

    def get_success_url(self):
        return reverse("equipment-detail", kwargs={"pk": self.object.equipment.pk})