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use futures_util::{StreamExt, SinkExt};
use indicatif::{MultiProgress, ProgressBar};
use reqwest::StatusCode;
use serde::Deserialize;
use tokio_tungstenite::{connect_async, tungstenite::Message};
use crate::{error::CliError, default_headers, ErrorResponse, format_url, Protocols, OVERVIEW_STYLE, DEFAULT_STYLE, DONE_STYLE, finish_pb, ERROR_STYLE, OVERVIEW_ERROR, OVERVIEW_DONE, add_pb};
pub async fn start(id: String, ping: bool) -> Result<(), CliError> {
let send_start = MultiProgress::new();
let overview = add_pb(&send_start, OVERVIEW_STYLE, format!(") start {}", id));
// TODO: calculate average start-time on server
let url = format_url("start", Protocols::Http)?;
let connect = add_pb(&send_start, DEFAULT_STYLE, format!("connect to {}", url));
let res = reqwest::Client::new()
.post(url)
.headers(default_headers()?)
.body(
format!(r#"{{"id": "{}", "ping": {}}}"#, id, ping)
)
.send()
.await
.map_err(CliError::Reqwest)?;
finish_pb(connect, "connected, got response".to_string(), DONE_STYLE);
let res_pb = add_pb(&send_start, DEFAULT_STYLE, "analyzing response".to_string());
match res.status() {
StatusCode::OK => {
let body = serde_json::from_str::<StartResponse>(
&res.text().await.map_err(CliError::Reqwest)?
)
.map_err(CliError::Serde)?;
if body.boot {
finish_pb(res_pb, "sent start packet".to_string(), DONE_STYLE);
}
if ping {
let status = status_socket(body.uuid, &send_start, &overview, id).await?;
if status {
finish_pb(overview, format!("successfully started {}", body.id), OVERVIEW_DONE);
} else {
finish_pb(overview, format!("error while starting {}", body.id), OVERVIEW_ERROR);
}
}
},
_ => {
let body = serde_json::from_str::<ErrorResponse>(
&res.text().await.map_err(CliError::Reqwest)?
)
.map_err(CliError::Serde)?;
res_pb.finish_with_message(format!("✗ got error: {}", body.error));
}
}
Ok(())
}
async fn status_socket(uuid: String, pb: &MultiProgress, overview: &ProgressBar, id: String) -> Result<bool, CliError> {
// TODO: Remove unwraps
let ws_pb = add_pb(pb, DEFAULT_STYLE, "connect to websocket".to_string());
let (mut ws_stream, _response) = connect_async(format_url("status", Protocols::Websocket)?)
.await
.expect("Failed to connect");
finish_pb(ws_pb, "connected to websocket".to_string(), DONE_STYLE);
ws_stream.send(Message::Text(uuid.clone())).await.unwrap();
// Get ETA
let eta_msg = ws_stream.next().await.unwrap().unwrap();
let eta = get_eta(eta_msg.into_text().unwrap(), uuid.clone())? + overview.elapsed().as_secs();
overview.set_message(format!("/{}) start {}", eta, id));
let msg_pb = add_pb(pb, DEFAULT_STYLE, "await message".to_string());
let msg = ws_stream.next().await.unwrap();
finish_pb(msg_pb, "received message".to_string(), DONE_STYLE);
ws_stream.close(None).await.unwrap();
let v_pb = add_pb(pb, DEFAULT_STYLE, "verify response".to_string());
let res = verify_response(msg.unwrap().to_string(), uuid)?;
match res {
Verified::WrongUuid => {
finish_pb(v_pb, "returned wrong uuid".to_string(), ERROR_STYLE);
Ok(false)
},
Verified::ResponseType(res_type) => {
match res_type {
ResponseType::Start => {
finish_pb(v_pb, "device started".to_string(), DONE_STYLE);
Ok(true)
},
ResponseType::Timeout => {
finish_pb(v_pb, "ping timed out".to_string(), ERROR_STYLE);
Ok(false)
},
ResponseType::NotFound => {
finish_pb(v_pb, "unknown uuid".to_string(), ERROR_STYLE);
Ok(false)
},
}
}
}
}
fn get_eta(msg: String, uuid: String) -> Result<u64, CliError> {
let spl: Vec<&str> = msg.split('_').collect();
if (spl[0] != "eta") || (spl[2] != uuid) { return Err(CliError::WsResponse); };
Ok(u64::from_str_radix(spl[1], 10).map_err(CliError::Parse)?)
}
fn verify_response(res: String, org_uuid: String) -> Result<Verified, CliError> {
let spl: Vec<&str> = res.split('_').collect();
let res_type = spl[0];
let uuid = spl[1];
if uuid != org_uuid { return Ok(Verified::WrongUuid) };
Ok(Verified::ResponseType(ResponseType::from(res_type)?))
}
#[derive(Debug, Deserialize)]
struct StartResponse {
boot: bool,
id: String,
uuid: String,
}
enum Verified {
ResponseType(ResponseType),
WrongUuid
}
enum ResponseType {
Start,
Timeout,
NotFound,
}
impl ResponseType {
fn from(value: &str) -> Result<Self, CliError> {
match value {
"start" => Ok(ResponseType::Start),
"timeout" => Ok(ResponseType::Timeout),
"notfound" => Ok(ResponseType::NotFound),
_ => Err(CliError::WsResponse),
}
}
}
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