<?php

namespace app\mzl\common\org;

use support\Log;

class XunfeiSpark
{
    const apiPassword = 'NWoTmfLkvGNyNwEeRBat:gojsysouMrXbsfLNgcRU';

    public static function comment($param,int $max_tokens = 300){
        foreach ($param as $k=>$v){
            $param[$k]["content"] .= "模拟网络用户做出回答，引导客户购车，回答长度不要超过三百字";
        }
        return self::chat($param,$max_tokens);
    }

    /**
     * 调用讯飞星火API
     * @param array $messages 消息内容，格式为[['role' => 'user', 'content' => 'xxx'], ...]
     * @param int $max_tokens 回复长度
     * @param string $model 模型，默认generalv3.5
     * @param bool $stream 是否流式，默认true
     * @return string|false API响应内容，失败返回false
     */
    public static function chat(array $messages,int $max_tokens = 300, string $model = '4.0Ultra', bool $stream = false)
    {
        $url = 'https://spark-api-open.xf-yun.com/v1/chat/completions';
        $headers = [
            'Authorization: Bearer ' . self::apiPassword,
            'Content-Type: application/json',
        ];
        $data = [
            'model' => $model,
            'messages' => $messages,
            'stream' => $stream,
            'max_tokens' => 300,
        ];
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_POST, true);
        curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data, JSON_UNESCAPED_UNICODE));
        // 如需跳过SSL验证（不推荐生产环境使用）
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
        $response = curl_exec($ch);
        if (curl_errno($ch)) {
            curl_close($ch);
            return false;
        }
        curl_close($ch);
        // 处理API返回结果，只返回content内容
        $data = json_decode($response, true);
        if ($data['code'] == 0 && isset($data['choices'][0]['message']['content'])) {
            return $data['choices'][0]['message']['content'];
        }
        log::info('调用讯飞星火失败',$data);
        return false;
    }
}