<?php

namespace app\crm\model;


use app\common\model\Country;
use app\crm\utils\Util;
use config\constants\Constants;
use DateTimeInterface;
use Illuminate\Support\Carbon;
use support\Model;
use Illuminate\Database\Eloquent\SoftDeletes;
use app\common\model\User;

class Customer extends Model
{
    /**
     * The table associated with the model.
     *
     * @var string
     */
    protected $table = 'crm_customer';

    /**
     * The primary key associated with the table.
     *
     * @var string
     */
    protected $primaryKey = 'id';

    //设置黑名单
    protected $guarded = ['id','created_at','updated_at'];

    // 指定日期字段存储格式为时间戳
    protected $dateFormat = 'U';

    /**
     * Indicates if the model should be timestamped.
     *
     * @var bool
     */
    public $timestamps = true;

    use SoftDeletes;
    protected $dates = ['deleted_at'];

    protected $casts = [
        'updated_at' => 'datetime:Y-m-d H:i:s', // 指定序列化格式
        'created_at' => 'datetime:Y-m-d H:i:s', // 指定序列化格式
    ];

    /**
     * 重新格式化时间
     * @param DateTimeInterface $date
     * @return string
     */
    protected function serializeDate(DateTimeInterface $date): string
    {
        return $date->format(Carbon::parse($date)->toDateTimeString());
    }

    /**
     * 客户的标签
     */
    public function tags()
    {
        return $this->belongsToMany(Tag::class, 'crm_customer_tag', 'customer_id', 'tag_id')
            ->withTimestamps(); // 如果需要记录关联时间
    }


    // 定义与 变更历史 的一对多关系
    public function his()
    {
        return $this->hasMany(CustomerHis::class, 'customer_id', 'id');
    }

    // 定义反向多对一关联
    public function user()
    {
        return $this->belongsTo(User::class, 'user_id', 'id');
    }

    protected static function booted()
    {
        static::saved(function ($customer) {
            if (empty($customer->code)) {
                $customer->code = self::generateCustomerCode($customer);
                // 使用saveQuietly避免递归调用
                $customer->saveQuietly();
            }
        });
    }

    public static function generateCustomerCode($customer)
    {
        // 生成唯一16位code，CM+14位
        $unique = strtoupper(substr(md5($customer->id . microtime(true) . mt_rand(1000, 9999)), 8, 6));
        $code = 'CM' . date('Ymd') .$unique;
        return $code;
    }

    // 静默保存方法，不触发事件
    public function saveQuietly(array $options = [])
    {
        return static::withoutEvents(function () use ($options) {
            return $this->save($options);
        });
    }

    public function countryInfo()
    {
        return $this->hasOne(Country::class, 'id', 'country_id');
    }
}