<?php

namespace App\Services;

use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Log;

/**
 * 视图管理
 */
class ViewService
{
    /**
     * 获取视图列表
     *
     * @param  string  $viewName  视图名称
     * @param  array  $whereParams  查询参数
     * @param  array  $pageParams  分页参数
     * @param  array  $sortParams  排序参数
     */
    public function viewList($viewName, array $whereParams, array $pageParams, array $sortParams = []): array
    {
        try {
            $query = DB::table($viewName);

            // 条件筛选
            foreach ($whereParams as $key => $value) {
                if (is_string($value)) {
                    $query->where($key, 'like', "%{$value}%");
                } else {
                    $query->where($key, $value);
                }
            }

            // 排序
            if (! empty($sortParams)) {
                $query->orderBy($sortParams['orderBy'], $sortParams['orderDir']);
            }

            $result = $query->paginate($pageParams['perPage'], ['*'], 'page', $pageParams['page']);

            return [
                'data' => [
                    'items' => $result->items(),
                    'total' => $result->total(),
                ],
                'msg' => 'success',
                'status' => 0,
            ];

        } catch (\Exception $e) {
            Log::error('获取视图数据失败', [
                'view_name' => $viewName,
                'error' => $e->getMessage(),
                'trace' => $e->getTraceAsString(),
            ]);

            return [
                'data' => [
                    'items' => [],
                ],
                'msg' => '获取数据失败',
                'status' => 1,
            ];
        }
    }
}