from django.contrib import admin
from modeltranslation.admin import TabbedTranslationAdmin

from .models import Category, Course, CourseFAQ, CourseHighlight, Lesson, Section


@admin.register(Category)
class CategoryAdmin(TabbedTranslationAdmin):
    list_display = ("name", "slug", "order")
    search_fields = ("name", "slug")
    ordering = ("order", "slug")


class CourseHighlightInline(admin.TabularInline):
    model = CourseHighlight
    extra = 0


class CourseFAQInline(admin.TabularInline):
    model = CourseFAQ
    extra = 0


class SectionInline(admin.TabularInline):
    model = Section
    extra = 0
    fields = ("title", "order")
    show_change_link = True


@admin.register(Course)
class CourseAdmin(TabbedTranslationAdmin):
    list_display = ("title", "instructor", "category", "level", "status", "created_at")
    list_filter = ("status", "level", "category")
    search_fields = ("title", "slug")
    raw_id_fields = ("instructor",)
    readonly_fields = ("created_at", "updated_at", "published_at")
    prepopulated_fields = {}
    inlines = [CourseHighlightInline, CourseFAQInline, SectionInline]


class LessonInline(admin.TabularInline):
    model = Lesson
    extra = 0
    fields = ("title", "kind", "order", "is_preview", "status")
    show_change_link = True


@admin.register(Section)
class SectionAdmin(TabbedTranslationAdmin):
    list_display = ("title", "course", "order")
    list_filter = ("course",)
    raw_id_fields = ("course",)
    inlines = [LessonInline]


@admin.register(Lesson)
class LessonAdmin(TabbedTranslationAdmin):
    list_display = ("title", "section", "kind", "status", "is_preview", "order")
    list_filter = ("kind", "status", "is_preview")
    search_fields = ("title",)
    raw_id_fields = ("section",)