import re
from datetime import date
from django import forms
from django.core.exceptions import ValidationError
from django.contrib.admin.widgets import FilteredSelectMultiple

from .models import (
    Educative,
    Skill,
    Routine,
    RoutineSkill,
    TrainingRound,
    GymnastTraining,
    GymnastTrainingRound
)

from .validators import is_valid_routine_type, is_valid_subset, is_valid_regexp


class SkillForm(forms.ModelForm):
    class Meta:
        model = Skill
        fields = ("informations",)
        widgets = {
            "informations": forms.Textarea(
                attrs={
                    "class": "form-control",
                    "placeholder": "Informations about the skill : attention point, methodology, biomecanics, …",  # pylint: disable=line-too-long
                }
            ),
        }


class CombinationForm(forms.ModelForm):
    class Meta:
        model = Routine
        fields = (
            "long_label",
            "short_label",
            "difficulty",
            "level",
            "is_active",
            "is_routine",
            "is_competitive",
            "informations",
        )
        widgets = {
            "long_label": forms.TextInput(
                attrs={"class": "form-control", "placeholder": "Routine's long name"}
            ),
            "short_label": forms.TextInput(
                attrs={"class": "form-control", "placeholder": "Routine's short name"}
            ),
            "informations": forms.Textarea(
                attrs={
                    "class": "form-control",
                    "placeholder": "Informations about the psychological state of mind : context (why, where, …), possible consequencies, …",  # pylint: disable=line-too-long
                }
            ),
            "difficulty": forms.HiddenInput(),
            "level": forms.HiddenInput(),
            "is_active": forms.HiddenInput(),
        }


class CombinationSkillForm(forms.ModelForm):
    class Meta:
        model = RoutineSkill
        fields = (
            "routine",
            "skill",
            "rank",
        )
        widgets = {
            "routine": forms.HiddenInput(),
            "skill": forms.HiddenInput(),
            "rank": forms.NumberInput(),
        }


class TrainingRoundForm(forms.ModelForm):

    educatives = forms.ModelMultipleChoiceField(
        required=False,
        queryset=Educative.objects.all(),
        widget=FilteredSelectMultiple("Educatives", is_stacked=False),
        # widget=customFilteredSelectMultiple(verbose_name='test2',is_stacked=False)
    )

    class Media:
        css = {
            "all": ["admin/css/widgets.css"],
        }
        js = ["/admin/jsi18n/"]

    class Meta:
        model = TrainingRound
        fields = ("label", "regexp", "educatives", "informations")

        widgets = {
            "label": forms.TextInput(
                attrs={
                    "class": "form-control",
                    "placeholder": "Label (not mandatory)",
                    "maxlength": 30,
                }
            ),
            "regexp": forms.TextInput(attrs={"class": "form-control"}),
            "informations": forms.Textarea(
                attrs={
                    "class": "form-control",
                    "placeholder": "Informations about the passe…",  # pylint: disable=line-too-long
                }
            ),
        }

    def clean_regexp(self):
        """Vérifie que la regexp entrée par l'utilisateur est valide."""
        print(self.cleaned_data)
        regexp = self.cleaned_data["regexp"]
        if not is_valid_regexp(regexp):
            raise ValidationError("Entered regexp not valid.")

        return regexp

    def clean(self):
        """Vérifie le contenu des champs `educatives` par rapport à la valeur de `regexp`. Si
        `regexp` est définie par :
                - valeurs de ROUTINE_TYPE_CHOICE    il faut que     Educatives soit VIDE
                    - avec [x-y]
                - [x-y]                                 "           Educatives soit NON VIDE
                - WC                                    "           il y ait 2+ Educatives
                - x|                                    "           il y ait 1! Educatives
        """
        cleaned_data = super().clean()
        regexp = cleaned_data["regexp"]

        if not regexp:
            arguments = regexp.split(" ")
            educatives = cleaned_data["educatives"]

            if is_valid_routine_type(arguments[0]) and educatives:
                raise ValidationError(
                    "Educatives must be empty with the entered Regexp."
                )

            if is_valid_subset(arguments[0]) and educatives is None:
                raise ValidationError(
                    "Educatives can't be empty with the entered Regexp."
                )

            if re.match(r"[1-9]+\|", arguments[0]) and len(educatives) != 1:
                raise ValidationError(
                    "One and only one Educatives allowed with the entered Regexp."
                )

            if arguments[0] == "WC" and (educatives is None or len(educatives) < 2):
                raise ValidationError(
                    "At least two Educatives with the entered Regexp."
                )

        return cleaned_data

    # def save_model(self, request, obj, form, change):
    #     obj.save()
    #     for educative in form.cleaned_data["educatives"]:
    #         print(educative)
    # book = Book.objects.get(pk=bk.id)
    # book.quantity -= 1
    # if book.quantity == 0:
    #     book.sold = True;
    # book.save()

class GymnastTrainingForm(forms.ModelForm):

    # trainingrounds = forms.ModelMultipleChoiceField(
    #     required=False,
    #     queryset=Educative.objects.all(),
    #     widget=FilteredSelectMultiple("TrainingRound", is_stacked=False),
    #     # widget=customFilteredSelectMultiple(verbose_name='test2',is_stacked=False)
    # )

    # class Media:
    #     css = {
    #         "all": ["admin/css/widgets.css"],
    #     }
    #     js = ["/admin/jsi18n/"]

    class Meta:
        model = GymnastTraining
        fields = (
            "date",
            "label",
            "gymnast",
            "informations",
        )

        widgets = {
            "gymnast": forms.HiddenInput(),
            "date": forms.DateInput(
                attrs={
                    "class": "form-control datepicker",
                    "placeholder": date.today().strftime("%Y-%m-%d"),
                    "value": date.today().strftime("%Y-%m-%d"),
                }
            ),
            "label": forms.TextInput(
                attrs={
                    "class": "form-control",
                    "placeholder": "Label (not mandatory)",
                    "maxlength": 30,
                }
            ),
            "informations": forms.Textarea(
                attrs={
                    "class": "form-control",
                    "placeholder": "Informations about the passe…",  # pylint: disable=line-too-long
                }
            ),
        }

    gymnast_related = forms.CharField(
        required=False,
        widget=forms.TextInput(
            attrs={
                "class": "form-control",
                "placeholder": "Searching…",
                "data-ref": "#id_gymnast",
            }
        ),
    )

class GymnastTrainingRoundForm(forms.ModelForm):
    class Meta:
        model = GymnastTrainingRound
        fields = (
            "gymnast_training",
            "training_round",
            "repetition",
            "rank",
        )
        widgets = {
            "gymnast_training": forms.HiddenInput(),
            "training_round": forms.HiddenInput(),
            "repetition": forms.NumberInput(),
            "rank": forms.NumberInput(),
        }