Twilio匿名呼叫转接：未接来电自动转语音留言实现指南

const twilio = require("twilio");
const express = require("express");
const router = express.Router();

// 假设这些是您的数据库操作和邮件发送函数
// const { getNumberWithoutUser, updateQuota } = require("../db/dbOperations");
// const { sendMessageNotificationEmail } = require("../emailing/email");
// const { appendCall } = require("../db/callsCollectionUtils");

// 模拟数据库操作和邮件发送函数
async function getNumberWithoutUser(maskedNumber) {
    // 模拟从数据库获取号码信息
    if (maskedNumber === "+1234567890") { // 假设这是匿名号码
        return [{
            _id: "user123",
            numbers: {
                subscriptions: [{ active: true, type: "premium" }],
                settings: {
                    forwarding: { toPrimaryPhone: true, primaryPhoneNumber: "+1987654321" }, // 真实号码
                    emailForVoicemail: "user@example.com" // 接收语音留言的邮箱
                }
            }
        }];
    }
    return [null];
}

async function updateQuota(userId, maskedNumber, type, subscriptionType) {
    console.log(`Updating quota for user ${userId} for masked number ${maskedNumber}, type: ${type}, subscription: ${subscriptionType}`);
    // 实际的配额更新逻辑
}

async function appendCall(userId, to, from, callDetails) {
    console.log(`Appending call record for user ${userId}: From ${from} to ${to}`);
    // 实际的通话记录存储逻辑
}

async function sendMessageNotificationEmail(toEmail, subject, body) {
    console.log(`Sending email to ${toEmail} with subject: "${subject}"`);
    // 实际的邮件发送逻辑
}


router.post("/webhook/voice", async (req, res) => {
    const { To, From, CallStatus } = req.body;
    console.log(`Incoming call status: ${CallStatus}, From: ${From}, To: ${To}`);

    const [numbers] = await getNumberWithoutUser(To);

    if (!numbers) {
        console.warn(`User does not own this number: ${To}`);
        return res.status(400).send("User does not own this number");
    }

    const isToPrimaryPhone = numbers?.numbers?.settings?.forwarding?.toPrimaryPhone;
    const primaryPhoneNumber = numbers?.numbers?.settings?.forwarding?.primaryPhoneNumber;

    if (isToPrimaryPhone && primaryPhoneNumber) {
        const twiml = new twilio.twiml.VoiceResponse();
        if (CallStatus === "ringing") {
            // 播放欢迎语（可选），使用中文女声
            twiml.say({ voice: 'woman', language: 'zh-CN' }, "您好，正在为您转接，请稍候。");

            // 尝试拨打用户真实号码，设置7