<?php

declare(strict_types=1);

namespace App\JsonRpc\Service;

use App\JsonRpc\Contract\CampusServiceInterface;
use App\Model\Campus;
use Hyperf\RpcServer\Annotation\RpcService;
use RuntimeException;

#[RpcService(
    name: 'DataCampus',
    server: 'jsonrpc-http',
    protocol: 'jsonrpc-http',
    publishTo: 'nacos'
)]
class CampusService implements CampusServiceInterface
{
    public function getCampus(int $id): array
    {
        $campus = Campus::find($id);
        if (! $campus) {
            throw new RuntimeException("校区不存在: {$id}");
        }
        return $campus->toArray();
    }

    public function batchGetCampus(array $ids): array
    {
        if (empty($ids)) {
            return [];
        }
        $campuses = Campus::whereIn('id', $ids)->get()->toArray();
        return array_column($campuses, null, 'id');
    }

    public function getCampusByProvince(string $province): array
    {
        return Campus::province($province)
            ->level(3)
            ->get()
            ->toArray();
    }

    public function getCampusByCity(string $province, string $city): array
    {
        return Campus::province($province)
            ->city($city)
            ->level(3)
            ->get()
            ->toArray();
    }

    public function getCampusHierarchy(int $campusId): array
    {
        $hierarchy = [];
        $current = Campus::find($campusId);

        if (! $current) {
            return $hierarchy;
        }

        // 从校区向上追溯层级
        while ($current) {
            array_unshift($hierarchy, [
                'id' => $current->id,
                'name' => $current->name,
                'level' => $current->level,
                'province' => $current->province,
                'city' => $current->city,
            ]);

            if ($current->parent_id === 0) {
                break;
            }

            $current = Campus::find($current->parent_id);
        }

        return $hierarchy;
    }
}