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use crate::*;
use xml::{
writer::{EventWriter, XmlEvent},
EmitterConfig,
};
#[derive(Debug)]
pub struct Dial<'a> {
method: Method,
action: Option<&'a str>,
timeout: usize,
number: &'a str,
recording_callback: Option<&'a str>,
record: Record,
}
impl<'a> Default for Dial<'a> {
fn default() -> Self {
Dial {
number: "",
method: Method::Post,
recording_callback: None,
record: Record::DoNotRecord,
action: None,
timeout: 30,
}
}
}
impl<'a> Dial<'a> {
pub fn new(number: &'a str) -> Self {
Dial {
number,
..Dial::default()
}
}
pub fn method(mut self, method: Method) -> Self {
self.method = method;
self
}
pub fn action(mut self, url: &'a str) -> Self {
self.action = Some(url);
self
}
pub fn record(mut self, status: Record) -> Self {
self.record = status;
self
}
pub fn recording_callback(mut self, url: &'a str) -> Self {
self.recording_callback = Some(url);
self
}
pub fn timeout(mut self, timeout: usize) -> Self {
self.timeout = timeout;
self
}
}
#[derive(Debug)]
pub enum Record {
DoNotRecord,
RecordFromAnswer,
RecordFromRinging,
}
impl Record {
fn to_str(&self) -> &str {
match *self {
Record::DoNotRecord => "do-not-record",
Record::RecordFromAnswer => "record-from-answer",
Record::RecordFromRinging => "record-from-ringing",
}
}
}
impl<'a> Twiml for Dial<'a> {
fn write<W: Write>(&self, w: &mut EventWriter<W>) -> TwimlResult<()> {
let timeout = self.timeout.to_string();
let el = XmlEvent::start_element("Dial")
.attr("method", self.method.to_str())
.attr("timeout", &timeout)
.attr("record", self.record.to_str());
match (self.action, self.recording_callback) {
(None, None) => w.write(el)?,
(Some(action), None) => w.write(el.attr("action", action))?,
(None, Some(callback)) => w.write(el.attr("recordingStatusCallback", callback))?,
(Some(action), Some(callback)) => w.write(
el.attr("action", action)
.attr("recordingStatusCallback", callback),
)?,
}
w.write(self.number)?;
w.write(XmlEvent::end_element())?;
Ok(())
}
fn build(&self) -> TwimlResult<String> {
let mut writer = Vec::with_capacity(30);
{
let mut w = EmitterConfig::new()
.write_document_declaration(false)
.create_writer(&mut writer);
self.write(&mut w)?;
}
Ok(String::from_utf8(writer)?)
}
}
impl<'a, T> From<T> for Dial<'a>
where
T: Into<&'a str>,
{
fn from(s: T) -> Self {
Dial::new(s.into())
}
}