import nested_admin
from django import forms
from django.db import models
from django.forms import TextInput, Textarea
from django.http import HttpRequest

from ..models.missions import Training
from ..models.weekpref import WeekPreference

from ..custom.student_permissions import has_edit_permission

from datetime import date

class TrainingForm(forms.ModelForm):
    model=Training

class TrainingInLIne(nested_admin.NestedTabularInline):
    model = Training
    form = TrainingForm
    extra = 0
    fk_name = 'weekpref'
    verbose_name_plural = "Training Missions"
    max_num = 7

    formfield_overrides = {
        models.CharField: {'widget': TextInput(attrs={'size':'20'})},
        models.TextField: {'widget': Textarea(attrs={'rows':4, 'cols':35})},
    }

    # If user is a student deny edit permission for week past the current one
    def has_change_permission(self, request: HttpRequest, obj: WeekPreference | None = None) -> bool:
        return has_edit_permission(request=request, obj=obj)
    
    def has_delete_permission(self, request: HttpRequest, obj: WeekPreference | None = None) -> bool:
        return self.has_change_permission(request=request, obj=obj)
    
    def has_add_permission(self, request: HttpRequest, obj: WeekPreference | None = None) -> bool:
        return self.has_change_permission(request=request, obj=obj)