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amichan.go
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/
amichan.go
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// Package amichan implements simple wrapper for github.com/ivahaev/amigo
// with channels for errors and events
package amichan
import (
"errors"
"strconv"
"time"
"github.com/ivahaev/amigo"
)
// Amichan presents struct for interact with Asterisk
type Amichan struct {
err chan error
event chan Event
amigo *amigo.Amigo
}
// New returns new Amichan example
func New(username, password, host string, port int, keepalive bool) *Amichan {
s := &amigo.Settings{
Username: username,
Password: password,
Host: host,
Port: strconv.Itoa(port),
Keepalive: keepalive,
}
a := amigo.New(s)
ac := &Amichan{
amigo: a,
err: make(chan error),
event: make(chan Event, 100),
}
a.RegisterDefaultHandler(ac.eventHandler)
a.On("error", ac.errorHandler)
return ac
}
// Err returns errors channel
func (ac *Amichan) Err() <-chan error {
return ac.err
}
// Event returns events channel
func (ac *Amichan) Event() <-chan Event {
return ac.event
}
// Connect connects with Asterisk
func (ac *Amichan) Connect() {
ac.amigo.Connect()
}
// Event presents AMI event interface
type Event interface {
// Field returns event field value by name
Field(name string) (val string, ok bool)
// Fields returns all field names in event
Fields() []string
// Name returns event name
Name() string
// Time returns event time
Time() time.Time
}
type event map[string]string
func (e event) Field(name string) (string, bool) {
val, ok := e[name]
return val, ok
}
func (e event) Fields() []string {
fields := make([]string, len(e))
var idx int
for k := range e {
fields[idx] = k
idx++
}
return fields
}
func (e event) Name() string {
return e["Event"]
}
func (e event) Time() time.Time {
t, _ := time.Parse(time.RFC3339Nano, e["Time"])
return t
}
func (ac *Amichan) eventHandler(m map[string]string) {
ac.event <- event(m)
}
func (ac *Amichan) errorHandler(message string) {
ac.err <- errors.New(message)
}