<?php

namespace App\Console\Commands;

use App\Models\Course;
use App\Models\CourseSign;
use App\Models\User;
use Illuminate\Console\Command;


class AutoSchoolmate extends Command
{
    /**
     * The name and signature of the console command.
     *
     * @var string
     */
    protected $signature = 'auto_schoolmate';

    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = '已审核学员自动进入校友库';

    /**
     * Create a new command instance.
     *
     * @return void
     */
    public function __construct()
    {
        parent::__construct();
    }

    /**
     * Execute the console command.
     *
     * @return mixed
     */
    public function handle()
    {
        // 获取所有已开始且需要自动加入校友库的课程（只处理存在 start_date 的课程）
        $today = date('Y-m-d');
        $courses = Course::where('auto_schoolmate', 1)
            ->whereNotNull('start_date')
            ->where('start_date', '<=', $today)
            ->get();

        if ($courses->isEmpty()) {
            return $this->info('没有需要处理的课程');
        }

        $this->info("找到 {$courses->count()} 个需要处理的课程");

        $totalUpdated = 0;
        $totalSkipped = 0;
        $processedUserIds = []; // 记录已处理的用户ID，避免重复处理

        foreach ($courses as $course) {
            // 获取报名通过的学员，并排除已经是校友的用户
            $courseSigns = CourseSign::where('course_id', $course->id)
                ->where('status', 1)
                ->whereHas('user', function ($query) {
                    // 排除已经是校友的用户（is_schoolmate = 1）
                    $query->whereRaw('COALESCE(is_schoolmate, 0) != 1');
                })->get();

            if ($courseSigns->isEmpty()) {
                continue;
            }

            // 获取需要更新的用户ID，并排除已经在本脚本中处理过的用户
            $userIds = $courseSigns->pluck('user_id')
                ->unique()
                ->filter(function ($userId) use (&$processedUserIds) {
                    // 如果已经处理过，跳过
                    if (in_array($userId, $processedUserIds)) {
                        return false;
                    }
                    $processedUserIds[] = $userId;
                    return true;
                })
                ->values()
                ->toArray();

            if (empty($userIds)) {
                continue;
            }

            // 批量更新：只更新还不是校友的学员；使用课程开课时间作为 schoolmate_time
            $updated = User::batchUpdateToSchoolmate($userIds, $course->start_date);

            $totalUpdated += $updated;
            $skipped = count($userIds) - $updated;
            $totalSkipped += $skipped;

            if ($updated > 0) {
                $this->info("课程【{$course->name}】: 更新 {$updated} 位学员，跳过 {$skipped} 位已处理学员");
            }
        }

        return $this->info("更新完成，共处理 {$totalUpdated} 位学员，跳过 {$totalSkipped} 位已处理学员");
    }

}