hsxtxxcykcds2026-backend/app/Models/AudienceRegistration.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;

class AudienceRegistration extends Model
{
    public const PURPOSES = [
        '项目交流',
        '产业合作',
        '投资对接',
        '学习参访',
        '媒体报道',
        '其他',
    ];

    protected $fillable = [
        'competition_id',
        'audience_session_id',
        'user_id',
        'name',
        'phone',
        'company',
        'job',
        'purpose',
        'ticket_code',
        'registered_at',
        'checked_in_at',
        'checked_in_by_admin_id',
        'checked_in_by_competition_admin_id',
    ];

    /**
     * @var array<string, string>
     */
    protected $casts = [
        'registered_at' => 'datetime',
        'checked_in_at' => 'datetime',
    ];

    protected static function booted(): void
    {
        static::creating(function (self $row) {
            if (! filled($row->ticket_code)) {
                $row->ticket_code = self::newTicketCode();
            }
        });
    }

    public static function newTicketCode(): string
    {
        do {
            $code = bin2hex(random_bytes(8));
        } while (self::query()->where('ticket_code', $code)->exists());

        return $code;
    }

    public function competition(): BelongsTo
    {
        return $this->belongsTo(Competition::class);
    }

    public function session(): BelongsTo
    {
        return $this->belongsTo(AudienceSession::class, 'audience_session_id');
    }

    public function user(): BelongsTo
    {
        return $this->belongsTo(User::class);
    }

    public function checkedInBy(): BelongsTo
    {
        return $this->belongsTo(AdminUser::class, 'checked_in_by_admin_id');
    }

    public function checkedInByCompetitionAdmin(): BelongsTo
    {
        return $this->belongsTo(CompetitionAdmin::class, 'checked_in_by_competition_admin_id');
    }

    public function isCheckedIn(): bool
    {
        return $this->checked_in_at !== null;
    }
}