<?php

namespace App\Http\Controllers\Api;

use App\Http\Controllers\Controller;
use App\Models\TenantPackage;
use App\Support\ApiError;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;
use Symfony\Component\HttpFoundation\Response;

class TenantPackageController extends Controller
{
    public function index(Request $request): JsonResponse
    {
        $tenant = $request->attributes->get('tenant');

        if (! $tenant) {
            return ApiError::response(
                'tenant_not_found',
                'Tenant Not Found',
                'The authenticated tenant context could not be resolved.',
                Response::HTTP_NOT_FOUND
            );
        }

        $packages = TenantPackage::where('tenant_id', $tenant->id)
            ->with('package')
            ->orderBy('created_at', 'desc')
            ->get();

        $packages->each(fn (TenantPackage $package) => $this->hydratePackageSnapshot($package));

        $activePackage = $tenant->activeResellerPackage?->load('package');

        if ($activePackage instanceof TenantPackage) {
            $this->hydratePackageSnapshot($activePackage);
        }

        return response()->json([
            'data' => $packages,
            'active_package' => $activePackage,
            'message' => 'Tenant packages loaded successfully.',
        ]);
    }

    private function hydratePackageSnapshot(TenantPackage $package): void
    {
        $pkg = $package->package;

        $maxEvents = $pkg?->max_events_per_year;
        $package->remaining_events = $maxEvents === null ? null : max($maxEvents - $package->used_events, 0);
        $package->package_limits = array_merge(
            $pkg?->limits ?? [],
            [
                'branding_allowed' => $pkg?->branding_allowed,
                'watermark_allowed' => $pkg?->watermark_allowed,
                'features' => $pkg?->features ?? [],
            ]
        );
    }
}