<?php

/**
 * 文件功能：前台会员中心控制器
 * 负责展示会员等级、权益说明、当前会员状态以及用户自己的购买记录
 */

namespace App\Http\Controllers;

use App\Models\Sysparam;
use App\Models\VipLevel;
use App\Models\VipPaymentOrder;
use Illuminate\Contracts\Pagination\LengthAwarePaginator;
use Illuminate\Http\Request;
use Illuminate\View\View;

class VipCenterController extends Controller
{
    /**
     * 显示会员中心页面
     *
     * @param  Request  $request  当前请求对象
     */
    public function index(Request $request): View
    {
        $user = $request->user();

        // 会员等级按后台排序字段展示，方便用户对比不同档位权益。
        $vipLevels = VipLevel::query()
            ->withCount('users')
            ->orderByDesc('sort_order')
            ->orderBy('id')
            ->get();

        // 仅展示当前用户自己的购买记录，避免泄露其他会员订单信息。
        $paymentLogs = $this->buildPaymentLogs($user->id);

        $paidOrders = VipPaymentOrder::query()
            ->where('user_id', $user->id)
            ->where('status', 'paid')
            ->count();

        $totalAmount = (float) VipPaymentOrder::query()
            ->where('user_id', $user->id)
            ->where('status', 'paid')
            ->sum('amount');

        return view('vip.center', [
            'user' => $user,
            'vipLevels' => $vipLevels,
            'paymentLogs' => $paymentLogs,
            'vipPaymentEnabled' => Sysparam::getValue('vip_payment_enabled', '0') === '1',
            'paidOrders' => $paidOrders,
            'totalAmount' => $totalAmount,
        ]);
    }

    /**
     * 构建当前用户的购买记录分页数据
     *
     * @param  int  $userId  当前登录用户 ID
     */
    private function buildPaymentLogs(int $userId): LengthAwarePaginator
    {
        return VipPaymentOrder::query()
            ->with('vipLevel:id,name,color,icon')
            ->where('user_id', $userId)
            ->latest('id')
            ->paginate(10)
            ->withQueryString();
    }
}