Go 如何从 Asterisk Manager Interface Event 获取活动呼叫数

我已经连接到Asterisk，并设法从Event PeerStatus获取活动和非活动对等体的数量，但现在我需要获取活动呼叫和通道的数量并显示它们.我try 了查找ChannelStateDesc=up的方法，但不起作用.即使当我放入日志(log)时，我也看不到事件正在被找到.我如何修复它(可能使用Event CoreShowChannelsComplete？)预先感谢

//server.go
package server

import (
    "bufio"
    "fmt"
    "net"
    "strings"

    "data"
)

func ConnectToAMI(address, username, password string) error {
    conn, err := net.Dial("tcp", address)
    if err != nil {
        return err
    }
    defer conn.Close()

    fmt.Fprintf(conn, "Action: Login\r\nUsername: %s\r\nSecret: %s\r\n\r\n", username, password)

    peerStatus := &data.PeerStatus{}
    callStatus := &data.CallStatus{}

    scanner := bufio.NewScanner(conn)
    for scanner.Scan() {
        line := scanner.Text()
        fmt.Println(line)

        if strings.HasPrefix(line, "PeerStatus") {
            data.GetPeerStatus(line, peerStatus)
            fmt.Println("Active peers:", peerStatus.Active)
            fmt.Println("Inactive peers:", peerStatus.Inactive)
        } else if strings.HasPrefix(line, "CoreShowChannel") {
            data.GetChannelStatus(line, callStatus)
            fmt.Println("Active peers:", peerStatus.Active)
            fmt.Println("Inactive peers:", peerStatus.Inactive)
        }

    }

    if err := scanner.Err(); err != nil {
        return err
    }

    return nil
}

//calls.go
package data

import (
    "encoding/json"
    "fmt"
    "strings"
)

type CallStatus struct {
    ActiveCalls    int `json:"active_calls"`
    ActiveChannels int `json:"active_channels"`
}

func (cs *CallStatus) UpdateCallStatus(state string) {
    fmt.Println("UpdateCallStatus function", state)

    switch state {
    case "Up":
        cs.ActiveCalls++
        cs.ActiveChannels = cs.ActiveCalls * 2
    case "Down":
        cs.ActiveCalls--
        cs.ActiveChannels=cs.ActiveChannels-2
    default:
    }
}

func GetChannelStatus(event string, callStatus *CallStatus) {
    fmt.Println("GetChannelStatus function", event)
    for _, line := range strings.Split(event, "\r\n") {
        if strings.HasPrefix(line, "ChannelStateDesc: ") {
            state := strings.TrimSpace(strings.TrimPrefix(line, "ChannelStateDesc: "))
            callStatus.UpdateCallStatus(state)
        }
    }
}