<?php

declare(strict_types=1);

namespace App\Filament\Pages;

use App\Models\User;
use App\Models\Workspace;
use App\Services\Auth\WorkspaceCapabilityResolver;
use App\Support\Ui\ActionSurface\ActionSurfaceDeclaration;
use App\Support\Ui\ActionSurface\Enums\ActionSurfaceProfile;
use App\Support\Ui\ActionSurface\Enums\ActionSurfaceSlot;
use App\Support\Workspaces\WorkspaceContext;
use App\Support\Workspaces\WorkspaceOverviewBuilder;
use BackedEnum;
use Filament\Navigation\NavigationItem;
use Filament\Pages\Page;
use UnitEnum;

class WorkspaceOverview extends Page
{
    protected static bool $isDiscovered = false;

    protected static bool $shouldRegisterNavigation = false;

    protected static ?string $title = 'Overview';

    protected static string|BackedEnum|null $navigationIcon = 'heroicon-o-home';

    protected static string|UnitEnum|null $navigationGroup = null;

    protected string $view = 'filament.pages.workspace-overview';

    /**
     * @var array<string, mixed>
     */
    public array $overview = [];

    public static function actionSurfaceDeclaration(): ActionSurfaceDeclaration
    {
        return ActionSurfaceDeclaration::forPage(ActionSurfaceProfile::ListOnlyReadOnly)
            ->exempt(ActionSurfaceSlot::ListHeader, 'Workspace overview is a singleton landing page with no page-header actions.')
            ->exempt(ActionSurfaceSlot::InspectAffordance, 'Workspace overview is already the canonical landing surface for the active workspace.')
            ->exempt(ActionSurfaceSlot::ListRowMoreMenu, 'Workspace overview does not render record rows with secondary actions.')
            ->exempt(ActionSurfaceSlot::ListBulkMoreGroup, 'Workspace overview does not expose bulk actions.')
            ->exempt(ActionSurfaceSlot::ListEmptyState, 'Workspace overview redirects or renders overview content instead of a list-style empty state.');
    }

    public function mount(WorkspaceOverviewBuilder $builder): void
    {
        $user = auth()->user();

        if (! $user instanceof User) {
            abort(403);
        }

        $workspaceId = app(WorkspaceContext::class)->currentWorkspaceId(request());

        if (! is_int($workspaceId)) {
            $this->redirect('/admin/choose-workspace');

            return;
        }

        $workspace = Workspace::query()->whereKey($workspaceId)->first();

        if (! $workspace instanceof Workspace) {
            abort(404);
        }

        /** @var WorkspaceCapabilityResolver $resolver */
        $resolver = app(WorkspaceCapabilityResolver::class);

        if (! $resolver->isMember($user, $workspace)) {
            abort(404);
        }

        $this->overview = $builder->build($workspace, $user);
    }

    public static function navigationItem(): NavigationItem
    {
        return NavigationItem::make('Overview')
            ->url(fn (): string => route('admin.home'))
            ->icon('heroicon-o-home')
            ->sort(-100)
            ->isActiveWhen(fn (): bool => request()->routeIs('admin.home'));
    }
}