<?php

namespace app\common\service;

use think\facade\Log;

/**
 * 语音通知服务
 * Class VoiceNotifyService
 * @package app\common\service
 */
class VoiceNotifyService
{
    // 云呼平台API地址
    protected $baseUrl = 'https://101.37.133.245:11008';

    // 平台和版本
    protected $platform = 'voice';
    protected $version = '1.0.0';

    // 超时时间
    protected $timeout = 30;

    // 用户凭证（从文档示例中获取）
    protected $appId = '100860';
    protected $token = '9ce17087d80140ce85e2b2e8cedc493e';

    // 功能代码：语音通知
    protected $functionCode = 'notify';

    /**
     * 构造函数（可传入自定义凭证）
     * @param string $appId  应用ID
     * @param string $token  令牌
     */
    public function __construct($appId = null, $token = null)
    {
        if ($appId) {
            $this->appId = $appId;
        }
        if ($token) {
            $this->token = $token;
        }
    }

    /**
     * 发送语音通知
     * @param string $phone       被叫手机号
     * @param string $templateId  模板ID
     * @param array  $templateArgs 模板参数
     * @param array  $options     其他选项
     * @return array
     */
    public function send($phone, $templateId, $templateArgs = [], $options = [])
    {
        try {
            // 验证手机号
            if (!$this->checkPhone($phone)) {
                return ['success' => false, 'message' => '手机号格式错误'];
            }

            // 验证模板ID
            if (empty($templateId)) {
                return ['success' => false, 'message' => '模板ID不能为空'];
            }

            // 准备请求数据
            $data = $this->prepareData($phone, $templateId, $templateArgs, $options);

            // 生成签名和时间戳
            $timestamp = $this->getTimestamp();
            $sig = $this->generateSig($timestamp);

            // 发送请求
            $result = $this->makeRequest($data, $sig, $timestamp);

            // 返回结果
            return [
                'success' => true,
                'call_id' => $result['callId'] ?? '',
                'result' => $result['result'] ?? '',
                'message' => $result['message'] ?? '发送成功',
                'raw_data' => $result
            ];

        } catch (\Exception $e) {
            Log::error('语音通知发送失败: ' . $e->getMessage());
            return [
                'success' => false,
                'message' => '发送失败: ' . $e->getMessage()
            ];
        }
    }

    /**
     * 准备请求数据
     * @param string $phone
     * @param string $templateId
     * @param array  $templateArgs
     * @param array  $options
     * @return array
     */
    protected function prepareData($phone, $templateId, $templateArgs, $options)
    {
        $data = [
            'calleeNumber' => $phone,
            'templateId' => $templateId,
        ];

        // 模板参数
        if (!empty($templateArgs)) {
            $data['templateArgs'] = $templateArgs;
        } else {
            // 如果模板无参数，传空对象
            $data['templateArgs'] = new \stdClass();
        }

        // 可选参数处理
        if (!empty($options['displayNumber'])) {
            $data['displayNumber'] = $options['displayNumber'];
        }

        if (isset($options['replayTimes']) && in_array($options['replayTimes'], [1, 2, 3])) {
            $data['replayTimes'] = $options['replayTimes'];
        }

        if (isset($options['ttsFirst']) && in_array($options['ttsFirst'], [0, 1])) {
            $data['ttsFirst'] = $options['ttsFirst'];
        }

        if (isset($options['recordButton']) && in_array($options['recordButton'], [0, 1])) {
            $data['recordButton'] = $options['recordButton'];
        }

        if (isset($options['callRec']) && in_array($options['callRec'], [0, 1])) {
            $data['callRec'] = $options['callRec'];
        }

        if (!empty($options['callbackUrl'])) {
            $data['callbackUrl'] = $options['callbackUrl'];
        }

        return $data;
    }

    /**
     * 生成签名
     * @param string $timestamp
     * @return string
     */
    protected function generateSig($timestamp)
    {
        $str = $this->appId . $this->token . $timestamp;
        return md5($str);
    }

    /**
     * 获取时间戳（毫秒）
     * @return string
     */
    protected function getTimestamp()
    {
        return round(microtime(true) * 1000);
    }

    /**
     * 发送HTTP请求
     * @param array  $data
     * @param string $sig
     * @param string $timestamp
     * @return array
     * @throws \Exception
     */
    protected function makeRequest($data, $sig, $timestamp)
    {
        // 构建URL
        $url = sprintf('%s/%s/%s/%s/%s/%s',
            $this->baseUrl,
            $this->platform,
            $this->version,
            $this->functionCode,
            $this->appId,
            $sig
        );

        // 构建Authorization头部
        $auth = base64_encode($this->appId . ':' . $timestamp);

        // 准备请求头
        $headers = [
            'Host: ' . parse_url($this->baseUrl, PHP_URL_HOST),
            'Authorization: ' . $auth,
            'Accept: application/json',
            'Content-Type: application/json',
        ];

        // 初始化cURL
        $ch = curl_init();

        curl_setopt_array($ch, [
            CURLOPT_URL => $url,
            CURLOPT_POST => true,
            CURLOPT_POSTFIELDS => json_encode($data, JSON_UNESCAPED_UNICODE),
            CURLOPT_RETURNTRANSFER => true,
            CURLOPT_HTTPHEADER => $headers,
            CURLOPT_TIMEOUT => $this->timeout,
            CURLOPT_SSL_VERIFYPEER => false,
            CURLOPT_SSL_VERIFYHOST => false,
        ]);

        // 执行请求
        $response = curl_exec($ch);

        // 检查错误
        if ($error = curl_error($ch)) {
            throw new \Exception('网络请求失败: ' . $error);
        }

        $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
        curl_close($ch);

        // 检查HTTP状态码
        if ($httpCode !== 200) {
            throw new \Exception('HTTP错误: ' . $httpCode);
        }

        // 解析JSON响应
        $result = json_decode($response, true);
        if (json_last_error() !== JSON_ERROR_NONE) {
            throw new \Exception('响应数据解析失败');
        }

        // 检查响应结果
        if (!isset($result['result'])) {
            throw new \Exception('响应缺少result字段');
        }

        // 000000 表示成功
        if ($result['result'] !== '000000') {
            $message = $result['message'] ?? '未知错误';
            throw new \Exception($message . ' (code: ' . $result['result'] . ')');
        }

        return $result;
    }

    /**
     * 验证手机号格式
     * @param string $phone
     * @return bool
     */
    protected function checkPhone($phone)
    {
        return preg_match('/^1[3-9]\d{9}$/', $phone) === 1;
    }

    /**
     * 设置自定义凭证
     * @param string $appId
     * @param string $token
     * @return $this
     */
    public function setCredentials($appId, $token)
    {
        $this->appId = $appId;
        $this->token = $token;
        return $this;
    }

    /**
     * 设置API地址
     * @param string $url
     * @return $this
     */
    public function setBaseUrl($url)
    {
        $this->baseUrl = $url;
        return $this;
    }

    /**
     * 设置超时时间
     * @param int $seconds
     * @return $this
     */
    public function setTimeout($seconds)
    {
        $this->timeout = $seconds;
        return $this;
    }
}