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.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
    fields = [
        "equipment",
        "session",
        "theoretical_max_percentage",
        "chosen_weight",
        "repetition_number",
        "work_form",
        "notes",
    ]
    template_name = "gym/round_edit.html"
    equipment = None
    session = 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"] = "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})