from django import forms
from django.contrib import admin
from django.utils import timezone

from simplemde.widgets import SimpleMDEEditor
from import_export.admin import ImportExportModelAdmin

from core.admin import SoftDeleteListFilter, BaseModelAdmin
from apps.communications.models import Announcement, PushNotificationDevice


class AnnouncementAdminForm(forms.ModelForm):
    content = forms.CharField(
        widget=SimpleMDEEditor(),
        help_text="Announcement content in Markdown format with live preview"
    )

    class Meta:
        model = Announcement
        fields = '__all__'


@admin.register(Announcement)
class AnnouncementAdmin(BaseModelAdmin, ImportExportModelAdmin):
    form = AnnouncementAdminForm
    list_display = [
        'title', 'announcement_type', 'priority', 'author', 
        'is_published', 'publish_date', 'created_at'
    ]
    list_filter = [
        'announcement_type', 'priority', 'is_published', 
        SoftDeleteListFilter, 'created_at'
    ]
    search_fields = ['title', 'content', 'author__username']
    readonly_fields = ['created_at', 'updated_at']
    
    fieldsets = (
        ('Content', {
            'fields': ('title', 'content', 'author')
        }),
        ('Settings', {
            'fields': ('announcement_type', 'priority', 'is_published', 'publish_date')
        }),
        ('Timestamps', {
            'fields': ('created_at', 'updated_at'),
            'classes': ('collapse',)
        }),
    )

    actions = BaseModelAdmin.actions + ['publish_announcements']

    def publish_announcements(self, request, queryset):
        queryset.update(is_published=True, publish_date=timezone.now())
        self.message_user(request, f"{queryset.count()} announcements published.")
    publish_announcements.short_description = "Publish selected announcements"

@admin.register(PushNotificationDevice)
class PushNotificationDeviceAdmin(BaseModelAdmin, ImportExportModelAdmin):
    list_display = ['user', 'device_type', 'is_active', 'created_at']
    list_filter = ['device_type', 'is_active', SoftDeleteListFilter, 'created_at']
    search_fields = ['user__username', 'user__email', 'device_token']
    readonly_fields = ['created_at', 'updated_at']
    
    fieldsets = (
        ('Device', {
            'fields': ('user', 'device_token', 'device_type', 'is_active')
        }),
        ('Timestamps', {
            'fields': ('created_at', 'updated_at'),
            'classes': ('collapse',)
        }),
    )