from django.contrib import admin
from unfold.admin import ModelAdmin, TabularInline

from .current import AboutContent, AboutItem, HomeContent, ListingContent, SiteContent


class FixedContentAdmin(ModelAdmin):
    """The page records are installed by migration; editors only change them."""

    list_per_page = 20

    def has_add_permission(self, request):
        return False

    def has_delete_permission(self, request, obj=None):
        return False


@admin.register(SiteContent)
class SiteContentAdmin(FixedContentAdmin):
    fieldsets = (
        ("Association", {"fields": ("official_name", "short_name", "faculty_subline", "description", "logo", "logo_alt")}),
        ("Navigation labels", {"fields": ("nav_home", "nav_about", "nav_events", "nav_blog")}),
        ("Contact and footer", {"fields": ("email", "phone", "telegram_url", "instagram_url", "website_url", "address", "footer_copy")}),
        ("SEO defaults", {"fields": ("seo_title", "seo_description", "seo_image", "seo_image_alt")}),
    )


@admin.register(HomeContent)
class HomeContentAdmin(FixedContentAdmin):
    fieldsets = (
        ("Page introduction", {"fields": ("title", "intro")}),
        ("Hero", {"fields": ("hero_heading", "hero_body", "hero_image", "hero_image_alt", "hero_action_label")}),
        ("Featured events", {"fields": ("featured_events_heading", "featured_events_intro", "featured_events_link_label")}),
        ("Featured blog posts", {"fields": ("featured_posts_heading", "featured_posts_intro", "featured_posts_link_label")}),
        ("Participation", {"fields": ("participation_heading", "participation_body", "participation_image", "participation_image_alt", "participation_action_label")}),
        ("SEO", {"fields": ("seo_title", "seo_description", "seo_image", "seo_image_alt")}),
    )


class AboutItemInline(TabularInline):
    model = AboutItem
    extra = 0
    fields = ("kind", "title", "text", "position")

    def has_add_permission(self, request, obj=None):
        return request.user.has_perm("content.change_aboutcontent")

    def has_change_permission(self, request, obj=None):
        return request.user.has_perm("content.change_aboutcontent")

    def has_delete_permission(self, request, obj=None):
        return request.user.has_perm("content.change_aboutcontent")


@admin.register(AboutContent)
class AboutContentAdmin(FixedContentAdmin):
    inlines = (AboutItemInline,)
    fieldsets = (
        ("Page introduction", {"fields": ("title", "intro", "identity_heading", "identity_body")}),
        ("Mission", {"fields": ("mission_heading", "mission_body")}),
        ("Activities", {"fields": ("activities_heading", "activities_body")}),
        ("Values", {"fields": ("values_heading", "values_body")}),
        ("Committees", {"fields": ("committees_heading", "committees_body")}),
        ("Affiliations", {"fields": ("affiliations_heading", "affiliations_body")}),
        ("FAQ and contact", {"fields": ("faq_heading", "contact_heading")}),
        ("SEO", {"fields": ("seo_title", "seo_description", "seo_image", "seo_image_alt")}),
    )


@admin.register(ListingContent)
class ListingContentAdmin(FixedContentAdmin):
    list_display = ("slug", "title")
    readonly_fields = ("slug",)
    fieldsets = (
        ("Content", {"fields": ("slug", "title", "intro")}),
        ("SEO", {"fields": ("seo_title", "seo_description", "seo_image", "seo_image_alt")}),
    )