<?php

namespace App\Services;

use App\Exceptions\BizException;
use App\Models\SmsCode;
use App\Models\User;
use Illuminate\Contracts\Cache\Repository as Cache;

class SmsCodeService
{
    /**
     * @var int
     */
    protected $expires = 180;

    /**
     * @param \Illuminate\Contracts\Cache\Repository $cache
     */
    public function __construct(
        protected Cache $cache,
    ) {
    }

    /**
     * 发送短信验证码
     *
     * @param string $phone
     * @param int $type
     * @param string $code
     * @param int $decaySeconds
     * @return \App\Models\SmsCode
     *
     * @throws \App\Exceptions\BizException
     */
    public function send(
        string $phone,
        int $type,
        string $code,
        int $decaySeconds = 60,
    ): SmsCode {
        if (! in_array($type, SmsCode::$allowedTypes)) {
            throw new BizException(__('Invalid verification code type'));
        }

        if ($type === SmsCode::TYPE_REGISTER) {
            if (User::where('phone', $phone)->exists()) {
                throw new BizException(__('The phone number is already registered'));
            }
        }

        if (! $this->cache->add("sms_lock_{$type}_{$phone}", 1, $decaySeconds)) {
            throw new BizException(__('Sending too frequently, please try again later'));
        }

        return SmsCode::create([
            'phone' => $phone,
            'code' => $code,
            'type' => $type,
            'expires_at' => now()->addSeconds($this->expires),
        ]);
    }

    /**
     * 校验验证码是否正确
     *
     * @param string $phone
     * @param int $type
     * @param string $code
     * @return void
     *
     * @throws \App\Exceptions\BizException
     */
    public function validate(string $phone, int $type, string $code): void
    {
        $smsCode = SmsCode::where('phone', $phone)
                        ->where('type', $type)
                        ->latest('id')
                        ->first();

        if ($smsCode === null || $smsCode->code !== $code || $smsCode->isInvalid()) {
            throw new BizException(__('Invalid verification code'));
        }

        $smsCode->update([
            'is_use' => true,
        ]);
    }
}