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If not, see . + +Also add information on how to contact you by electronic and paper mail. + + If the program does terminal interaction, make it output a short +notice like this when it starts in an interactive mode: + + Copyright (C) + This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, your program's commands +might be different; for a GUI interface, you would use an "about box". + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU GPL, see +. + + The GNU General Public License does not permit incorporating your program +into proprietary programs. If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +. diff --git a/README.md b/README.md new file mode 100644 index 0000000..f6bf8ab --- /dev/null +++ b/README.md @@ -0,0 +1,7 @@ +# Licenses + +| License | Author | Project | +|---------|--------|---------| +| [MIT](https://mit-license.org/) | tint | [rollback](https://git.tint.red/tint/rollback) | +| [GPLv3](https://www.gnu.org/licenses/gpl-3.0.en.html) | tylerm | tuxman | + diff --git a/client/css/main.css b/client/css/main.css new file mode 100644 index 0000000..fbe272c --- /dev/null +++ b/client/css/main.css @@ -0,0 +1,27 @@ +* { + margin: 0; + padding: 0; +} + +#container img { + image-rendering: -webkit-optimize-contrast; /* webkit */ + image-rendering: -moz-crisp-edges /* Firefox */ +} + +.rotate90 { + transform: rotate(90deg); +} + +.rotate180 { + transform: rotate(180deg); +} + +.rotate270 { + transform: rotate(270deg); +} + +.sprite { + position: absolute; + transition: left .1s, top .1s; + z-index: 2; +} diff --git a/client/index.html b/client/index.html new file mode 100644 index 0000000..9ba6b4c --- /dev/null +++ b/client/index.html @@ -0,0 +1,8 @@ + + + + + + + + diff --git a/client/js/main.js b/client/js/main.js new file mode 100644 index 0000000..7004fb5 --- /dev/null +++ b/client/js/main.js @@ -0,0 +1,25 @@ +import { Sprite } from './sprite.js' +import { Map } from './map.js' + +let width = 13 +let height = 5 +let data = [ + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, + 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, + 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 1, + 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1 +] + +let map = new Map(width, height, data) +let tux = new Sprite("/static/tux.png", map) + +tux.show() +const callback = () => { + + tux.add_pos(1, 0) + + setTimeout(callback, 500) +} + +callback() diff --git a/client/js/map.js b/client/js/map.js new file mode 100644 index 0000000..e293ad2 --- /dev/null +++ b/client/js/map.js @@ -0,0 +1,243 @@ +const create_style = (map) => { + const css = ` + * { + --scale: 100; + --aspect: ${map.width/map.height}; + --scaleX: calc(var(--scale) * 1vw); + --scaleY: calc(var(--scale) * 1vh); + } + + body { + background-color: #191919; + width: 100vw; + height: 100vh; + display: flex; + } + + #container { + width: calc(var(--scaleY) * var(--aspect)); + height: var(--scaleY); + margin-top: calc((100vh - var(--scaleY))/2); + margin-left: calc(50vw - var(--scaleY)*var(--aspect)/2); + position: relative; + } + + #container img { + display: inline-block; + width: ${100/map.width}%; + height: ${100/map.height}%; + } + + @media (max-aspect-ratio: ${map.width}/${map.height}) { + #container { + width: var(--scaleX); + height: calc(var(--scaleX) / var(--aspect)); + margin-left: calc((100vw - var(--scaleX))/2); + margin-top: calc(50vh - var(--scaleX)/var(--aspect)/2); + } + }`; + + map.style.innerHTML = css +} + +const Direction = { + EMPTY: 0, + WALL_HZ: 1, + WALL_VT: 2, + TURN_Q1: 3, + TURN_Q2: 4, + TURN_Q3: 5, + TURN_Q4: 6, + TEE_NORTH: 7, + TEE_EAST: 8, + TEE_SOUTH: 9, + TEE_WEST: 10, + CROSS: 11, + DOT: 12, + WALL_END_NORTH: 13, + WALL_END_SOUTH: 14, + WALL_END_EAST: 15, + WALL_END_WEST: 16 +} + +const place_tile = (container, type) => { + + const img = document.createElement("img") + + let image_src, class_name; + switch(type) { + case Direction.EMPTY: + image_src = "/static/empty.png" + class_name = "" + break + case Direction.WALL_HZ: + image_src = "/static/wall.png" + class_name = "" + break + case Direction.WALL_VT: + image_src = "/static/wall.png" + class_name = "rotate90" + break + case Direction.TURN_Q1: + image_src = "/static/turn.png" + class_name = "" + break + case Direction.TURN_Q2: + image_src = "/static/turn.png" + class_name = "rotate270" + break + case Direction.TURN_Q3: + image_src = "/static/turn.png" + class_name = "rotate180" + break + case Direction.TURN_Q4: + image_src = "/static/turn.png" + class_name = "rotate90" + break + case Direction.TEE_NORTH: + image_src = "/static/tee.png" + class_name = "rotate180" + break + case Direction.TEE_EAST: + image_src = "/static/tee.png" + class_name = "rotate270" + break + case Direction.TEE_SOUTH: + image_src = "/static/tee.png" + class_name = "" + break + case Direction.TEE_WEST: + image_src = "/static/tee.png" + class_name = "rotate90" + break + case Direction.CROSS: + image_src = "/static/cross.png" + class_name = "" + break + case Direction.DOT: + image_src = "/static/dot.png" + class_name = "" + break + case Direction.WALL_END_NORTH: + image_src = "/static/wall_end.png" + class_name = "" + break; + case Direction.WALL_END_EAST: + image_src = "/static/wall_end.png" + class_name = "rotate90" + break; + case Direction.WALL_END_SOUTH: + image_src = "/static/wall_end.png" + class_name = "rotate180" + break; + case Direction.WALL_END_WEST: + image_src = "/static/wall_end.png" + class_name = "rotate270" + break; + } + + img.setAttribute("class", class_name) + img.setAttribute("src", image_src) + + container.appendChild(img) +} + +const get_point = (width, height, data, x, y) => { + if (x < 0 || x >= width || y < 0 || y >= height) { + return 0 + } else { + return data[y * width + x] + } +} + +const gen_walls = (width, height, data) => { + + let walls = Array(width * height) + for (let y = 0; y < height; y++) { + for (let x = 0; x < width; x++) { + + let north = get_point(width, height, data, x, y-1) + let south = get_point(width, height, data, x, y+1) + let east = get_point(width, height, data, x+1, y) + let west = get_point(width, height, data, x-1, y) + let current = get_point(width, height, data, x, y) + + let point = Direction.EMPTY + + if (!current) { + walls[y * width + x] = point + continue + } + + if (north && south && east && west) { + point = Direction.CROSS + } else if (east && west && north) { + point = Direction.TEE_NORTH + } else if (east && west && south) { + point = Direction.TEE_SOUTH + } else if (north && south && east) { + point = Direction.TEE_EAST + } else if (north && south && west) { + point = Direction.TEE_WEST + } else if (east && west) { + point = Direction.WALL_HZ + } else if (north && south) { + point = Direction.WALL_VT + } else if (west && south) { + point = Direction.TURN_Q1 + } else if (south && east) { + point = Direction.TURN_Q2 + } else if (east && north) { + point = Direction.TURN_Q3 + } else if (north && west) { + point = Direction.TURN_Q4 + } else if (north) { + point = Direction.WALL_END_NORTH + } else if (east) { + point = Direction.WALL_END_EAST + } else if (south) { + point = Direction.WALL_END_SOUTH + } else if (west) { + point = Direction.WALL_END_WEST + } else { + point = Direction.DOT + } + + walls[y * width + x] = point + + } + } + + return walls +} + +const gen_map = (map) => { + let walls = gen_walls(map.width, map.height, map.data) + for (let y = 0; y < map.height; y++) { + for (let x = 0; x < map.width; x++) { + place_tile(map.container, walls[y * map.width + x]) + } + } + +} + +export class Map { + + constructor(width, height, data) { + this.width = width + this.height = height + this.data = data + this.container = document.body.appendChild(document.createElement("div")) + this.container.id = "container" + this.style = document.body.appendChild(document.createElement("style")) + + create_style(this) + gen_map(this) + } + + destroy() { + this.container.remove() + this.style.remove() + } + +} diff --git a/client/js/sprite.js b/client/js/sprite.js new file mode 100644 index 0000000..ec6ecbd --- /dev/null +++ b/client/js/sprite.js @@ -0,0 +1,43 @@ +export class Sprite { + + constructor(image_src, map) { + this.element = document.createElement("img") + this.element.src = image_src + this.element.className = "sprite" + this.map = map + this.map.container.appendChild(this.element) + this.x = 0 + this.y = 0 + this.hide() + } + + #update_pos() { + this.element.style.left = `${100/this.map.width*this.x}%`, + this.element.style.top = `${100/this.map.height*this.y}%` + } + + set_pos(x, y) { + this.x = x + this.y = y + this.#update_pos() + } + + add_pos(x, y) { + this.x += x + this.y += y + this.#update_pos() + } + + hide() { + this.element.style.display = "none" + } + + show() { + this.element.style.display = "initial" + } + + destory() { + this.element.remove() + } + +} diff --git a/client/static/cross.png b/client/static/cross.png new file mode 100644 index 0000000..4ee9824 Binary files /dev/null and b/client/static/cross.png differ diff --git a/client/static/dot.png b/client/static/dot.png new file mode 100644 index 0000000..600e373 Binary files /dev/null and b/client/static/dot.png differ diff --git a/client/static/empty.png b/client/static/empty.png new file mode 100644 index 0000000..6ca5e29 Binary files /dev/null and b/client/static/empty.png differ diff --git a/client/static/tee.png b/client/static/tee.png new file mode 100644 index 0000000..e3857fc Binary files /dev/null and b/client/static/tee.png differ diff --git a/client/static/turn.png b/client/static/turn.png new file mode 100644 index 0000000..e6a93cf Binary files /dev/null and b/client/static/turn.png differ diff --git a/client/static/tux.png b/client/static/tux.png new file mode 100644 index 0000000..b78a72b Binary files /dev/null and b/client/static/tux.png differ diff --git a/client/static/wall.png b/client/static/wall.png new file mode 100644 index 0000000..f54d2fa Binary files /dev/null and b/client/static/wall.png differ diff --git a/client/static/wall_end.png b/client/static/wall_end.png new file mode 100644 index 0000000..7b28b61 Binary files /dev/null and b/client/static/wall_end.png differ diff --git a/deployments/docker/Dockerfile b/deployments/docker/Dockerfile new file mode 100644 index 0000000..0565b6b --- /dev/null +++ b/deployments/docker/Dockerfile @@ -0,0 +1,16 @@ +FROM rust:alpine AS builder + +COPY Cargo.toml Cargo.lock /app/ +COPY src /app/src +WORKDIR /app +RUN apk add musl-dev +RUN cargo build --release + +FROM alpine +RUN apk add --no-cache tini + +RUN adduser -DH block +USER block +COPY --from=builder /app/target/release/rollback /rollback +COPY client /client +ENTRYPOINT ["/sbin/tini", "--", "/rollback"] diff --git a/src/main.rs b/src/main.rs new file mode 100644 index 0000000..34783ac --- /dev/null +++ b/src/main.rs @@ -0,0 +1,22 @@ +mod routes; +mod rooms; +mod room; + +#[tokio::main] +async fn main() { + let port = std::env::var("PORT") + .unwrap_or("8080".to_owned()) + .parse::() + .unwrap_or(8080); + + axum::Server::bind(&std::net::SocketAddr::new( + std::net::IpAddr::V6(std::net::Ipv6Addr::from(0)), + port + )) + .serve( + routes::routes() + .into_make_service() + ) + .await + .expect("Error running the web server"); +} diff --git a/src/room/handle.rs b/src/room/handle.rs new file mode 100644 index 0000000..d397c70 --- /dev/null +++ b/src/room/handle.rs @@ -0,0 +1,106 @@ +use std::collections::HashSet; + +use super::messages::{ClientMessage, ServerMessage}; + +// send a ServerMessage::Connections to all sockets +pub async fn send_connections(v: &mut super::Clients, added: Option, removed: Option, frame: u64) { + // get the list of connection IDs + let connections: Vec = v.iter() + .enumerate() + .filter(|(_, n)| n.is_some()) + .map(|(id, _)| id) + .collect(); + + super::send(v, |id, _c| { + Some(ServerMessage::Connections { + connections: connections.clone(), + added, + removed, + id, + frame, + }) + }).await; +} + +// handle incoming websocket messages +pub async fn handle( + v: &mut super::Clients, + requests: &mut HashSet<(u64, Option, usize)>, // frame, connection, client id + pending: &mut Vec<(Option, Option)>, + id: usize, + msg: ClientMessage, +) { + match msg { + // broadcast inputs to every other connection + ClientMessage::Input { data, frame } => { + super::broadcast(v, ServerMessage::Input { + data, + frame, + connection: id + }, Some(id)).await; + }, + // a client needs the current game state, grab it from another client + ClientMessage::RequestState { frame, connection } => { + let count = super::conn_count(v); + + if count < 2 { // nobody to request state *from* + if let Some(Some(client)) = v.get(id) { + client.send(ServerMessage::State { + state: serde_json::Value::Null, + frame: 0, + connection: None, + }).await.ok(); + } + return; + } + + // request state from other clients + requests.insert((frame, connection, id)); + + match connection { + None => { + super::broadcast(v, ServerMessage::RequestState { frame }, Some(id)).await; + }, + Some(id) => { // it's to a specific connection + let Some(Some(client)) = v.get(id) else { + return; + }; + client.send(ServerMessage::RequestState { frame }).await.ok(); + }, + } + }, + // a client responded to a request for game state, tell all the requestees + ClientMessage::State { state, frame } => { + let mut new_requests = HashSet::new(); + for (fr, conn, cid) in requests.drain() { + if + fr != frame || // this isn't the requested frame + (conn.is_some() && Some(id) != conn) // this isn't the requested connection + { + new_requests.insert((fr, conn, cid)); + continue; + } + if let Some(Some(client)) = v.get(cid) { + client.send(ServerMessage::State { + state: state.clone(), + frame, + connection: Some(id), + }).await.ok(); + } + } + *requests = new_requests; + }, + // a client said what frame they're on, actually send the connections message + ClientMessage::Frame { frame } => { + for (added, removed) in pending.into_iter() { + send_connections(v, *added, *removed, frame).await; + } + *pending = Vec::new(); + }, + ClientMessage::Ping { frame } => { + if let Some(Some(client)) = v.get(id) { + client.send(ServerMessage::Pong { frame }).await.ok(); + } + } + } +} diff --git a/src/room/messages.rs b/src/room/messages.rs new file mode 100644 index 0000000..72958a6 --- /dev/null +++ b/src/room/messages.rs @@ -0,0 +1,69 @@ +use serde::{Serialize, Deserialize}; +use serde_json::Value; + +#[derive(Deserialize, Clone, Debug)] +#[serde(tag = "type")] +pub enum ClientMessage { + #[serde(rename = "frame")] + Frame { + frame: u64, + }, + #[serde(rename = "input")] + Input { + data: Value, + frame: u64, + }, + #[serde(rename = "requeststate")] + RequestState { + connection: Option, + frame: u64, + }, + #[serde(rename = "state")] + State { + state: Value, + frame: u64, + }, + #[serde(rename = "ping")] + Ping { + frame: u64, + }, +} + +#[derive(Serialize, Clone, Debug)] +#[serde(tag = "type")] +pub enum ServerMessage { + #[serde(rename = "framerequest")] + FrameRequest, + #[serde(rename = "connections")] + Connections { + connections: Vec, + added: Option, + removed: Option, + id: usize, + frame: u64, + }, + #[serde(rename = "input")] + Input { + data: Value, + frame: u64, + connection: usize, + }, + #[serde(rename = "requeststate")] + RequestState { + frame: u64, + }, + #[serde(rename = "state")] + State { + state: Value, + frame: u64, + connection: Option, + }, + #[serde(rename = "pong")] + Pong { + frame: u64, + }, + #[serde(rename = "error")] + Error { + error: String, + }, +} diff --git a/src/room/mod.rs b/src/room/mod.rs new file mode 100644 index 0000000..8b3d8c2 --- /dev/null +++ b/src/room/mod.rs @@ -0,0 +1,128 @@ +use std::{time::Duration, collections::HashSet}; + +use axum::extract::ws::WebSocket; +use tokio::sync::mpsc; + +mod websocket; +mod messages; +mod handle; + +use messages::{ClientMessage, ServerMessage}; + +pub enum RoomMessage { + Add(WebSocket), + Remove(usize), + WsMessage(usize, ClientMessage), +} + +pub type Client = mpsc::Sender; +pub type Clients = Vec>; + +pub type Room = mpsc::Sender; + +// spawns a task for the room that listens for incoming messages from websockets as well as connections and disconnections +pub fn start_room(room_id: String, room_service: super::rooms::RoomService) -> Room { + let (tx, rx) = mpsc::channel::(20); + + let txret = tx.clone(); + + tokio::spawn(room_task(tx, rx, room_id, room_service)); + + txret +} + +async fn room_task(tx: mpsc::Sender, mut rx: mpsc::Receiver, room_id: String, room_service: super::rooms::RoomService) { + let mut ws = Vec::new(); + let mut state_requests = HashSet::new(); + let mut pending: Vec<(Option, Option)> = Vec::new(); + + while let Some(message) = rx.recv().await { + match message { + RoomMessage::Add(w) => { // a new connection is added + // create channels for the websocket and start a task to send and receive from it + let (wstx, wsrx) = mpsc::channel(5); + let id = ws.len(); + ws.push(Some(wstx)); + tokio::spawn(websocket::start_ws(w, id, tx.clone(), wsrx)); + + if conn_count(&ws) < 2 { // the first connection is on frame 0 + handle::send_connections(&mut ws, Some(id), None, 0).await; + } else { + // connections need to be added on a specific frame + // so ask the clients for a frame to put this event on + broadcast(&mut ws, ServerMessage::FrameRequest, Some(id)).await; + pending.push((Some(id), None)); + } + }, + RoomMessage::Remove(id) => { // a connection is closed (sent by the websocket task on exiting) + // only remove it if it exists + if let Some(item) = ws.get_mut(id) { + *item = None; + }; + let count = conn_count(&ws); + if count == 0 { // remove rooms once they become empty + room_service.send(super::rooms::RoomServiceRequest::Remove(room_id.clone())).await.ok(); + break; + } + + // disconnections happen on a specific frame, ask the clients for a frame + broadcast(&mut ws, ServerMessage::FrameRequest, None).await; + pending.push((None, Some(id))); + }, + RoomMessage::WsMessage(id, msg) => { // new data from a websocket + handle::handle(&mut ws, &mut state_requests, &mut pending, id, msg).await; + } + } + } +} + +// send the websocket to the room task +pub async fn add_connection(tx: &Room, ws: WebSocket) { + tx.send_timeout(RoomMessage::Add(ws), Duration::from_secs(1)).await.ok(); +} + +pub fn conn_count(v: &Clients) -> usize { + v.iter().filter(|i| i.is_some()).count() +} + +// send a message to all or some of the clients, in parallel rather than series, +// based on a callback +pub async fn send(v: &mut Clients, create_message: impl Fn(usize, &Client) -> Option) -> usize { + let tasks = v.iter() + .enumerate() + .map(|(id, c)| { + // send to existing clients + let Some(client) = c.clone() else { + return None; + }; + + let Some(msg) = create_message(id, &client) else { + return None; + }; + + Some(tokio::spawn(async move { + client.send(msg).await.ok(); + })) + }); + + let count = tasks.len(); + // make sure all the tasks complete + for task in tasks { + if let Some(t) = task { + t.await.ok(); + } + } + + count +} + +// send a message to all the websockets in the room (optionally excluding one) +pub async fn broadcast(v: &mut Clients, msg: ServerMessage, except: Option) -> usize { + send(v, |id, _client| { + if Some(id) == except { + return None; + } + + Some(msg.clone()) + }).await +} diff --git a/src/room/websocket.rs b/src/room/websocket.rs new file mode 100644 index 0000000..50a4537 --- /dev/null +++ b/src/room/websocket.rs @@ -0,0 +1,66 @@ +use std::time::Duration; + +use axum::extract::ws::{WebSocket, Message}; +use tokio::sync::mpsc; + +use super::RoomMessage; +use super::messages::ServerMessage; + +// set up some senders and receivers so that the websocket can receive messages from the task, send messages to the task, and notify the task when it closes +pub async fn start_ws(mut ws: WebSocket, id: usize, tx: mpsc::Sender, mut rx: mpsc::Receiver) { + loop { + tokio::select! { + m = ws.recv() => { // receive from the websocket and send it to `tx` + if let Some(Ok(msg)) = m { + // get the string contents + let optionstring = match msg { + Message::Text(s) => { + Some(s) + }, + Message::Binary(bin) => { + String::from_utf8(bin).ok() + }, + Message::Close(_) => { // quit the whole loop on disconnect + break; + }, + _ => None + }; + + // ignore things that aren't strings + let Some(s) = optionstring else { + continue; + }; + + // decode and send to the room + match serde_json::from_str(&s) { + Ok(message) => { + tx.send_timeout(RoomMessage::WsMessage(id, message), Duration::from_secs(1)).await.ok(); + }, + Err(e) => { // let the client know if they sent a bad message + if let Ok(text) = serde_json::to_string(&ServerMessage::Error{ + error: format!("Failed to decode JSON message: {}: {}", e, s), + }) { + ws.send(Message::Text(text)).await.ok(); + } + } + } + } else { // websocket error + break; + } + } + s = rx.recv() => { // receive from `rx` and send it to the websocket + if let Some(msg) = s { + if let Ok(string) = serde_json::to_string(&msg) { + ws.send(Message::Text(string)).await.ok(); + } + } else { // shouldn't happen but this is if the room drops the sender, it should close the websocket anyways + break; + } + } + } + } + + // websocket disconnect due to either error or normal disconnect + // notify the room that the socket should be removed + tx.send_timeout(RoomMessage::Remove(id), Duration::from_secs(1)).await.ok(); +} diff --git a/src/rooms.rs b/src/rooms.rs new file mode 100644 index 0000000..c8199d1 --- /dev/null +++ b/src/rooms.rs @@ -0,0 +1,59 @@ +use std::collections::HashMap; + +use axum::extract::ws::WebSocket; +use tokio::sync::mpsc; +use tokio::sync::oneshot; + +use super::room; + +pub enum RoomServiceRequest { + Exists(String, oneshot::Sender), + Join(String, WebSocket), + Remove(String), +} + +pub type RoomService = mpsc::Sender; + +type RoomMap = HashMap; + +async fn handle_room_server_message(rooms: &mut RoomMap, req: RoomServiceRequest, tx: RoomService) { + match req { + // check whether a given room exists + // the sender must provide a tokio::sync::oneshot sender to receive a response + RoomServiceRequest::Exists(code, reply) => { + reply.send(rooms.get(&code).is_some()).ok(); + }, + // send a websocket into the given room, starting it if it doesn't exist + RoomServiceRequest::Join(code, ws) => { + let room = match rooms.get(&code) { + Some(rm) => rm, + None => { + let rm = room::start_room(code.clone(), tx); + rooms.insert(code.clone(), rm); + &rooms[&code] + } + }; + + room::add_connection(room, ws).await; + }, + // remove a room (called by the room task itself once there are no more connections to it) + RoomServiceRequest::Remove(code) => { + rooms.remove(&code); + } + } +} + +// a task to manage a hashmap holding the room task senders +// returns a sender to interface with the task +pub fn start_room_server() -> RoomService { + let (tx, mut rx) = mpsc::channel::(10); + let txret = tx.clone(); + + tokio::spawn(async move { + let mut rooms: RoomMap = HashMap::new(); + while let Some(req) = rx.recv().await { + handle_room_server_message(&mut rooms, req, tx.clone()).await; + } + }); + txret +} diff --git a/src/routes.rs b/src/routes.rs new file mode 100644 index 0000000..1fa16c7 --- /dev/null +++ b/src/routes.rs @@ -0,0 +1,51 @@ +use axum::{ + extract::{ws::WebSocketUpgrade, Path}, + routing::get, + response::Response, + Router, Extension, +}; +use tokio::sync::oneshot; +use tower_http::services::ServeDir; + +use super::rooms; + +pub fn routes() -> Router { + let room_server: rooms::RoomService = rooms::start_room_server(); + + Router::new() + .route("/api/check", get(|| async {"ok"})) + .route("/api/exists/:code", get(game_exists)) + .route("/api/join/:code", get(game_join)) + .nest_service("/", ServeDir::new("client")) + .layer(Extension(room_server)) +} + +// check if a given room code exists already +async fn game_exists( + Path(code): Path, + Extension(room_server): Extension +) -> &'static str { + let (tx, rx) = oneshot::channel(); + room_server.send(rooms::RoomServiceRequest::Exists(code, tx)).await.ok(); + + if let Ok(res) = rx.await { + if res { + "true" + } else { + "false" + } + } else { + return "error"; + } +} + +// start a websocket connection and join it to the room +async fn game_join( + Path(code): Path, + ws: WebSocketUpgrade, + Extension(room_server): Extension +) -> Response { + ws.on_upgrade(|s| async move { + room_server.send(rooms::RoomServiceRequest::Join(code, s)).await.ok(); + }) +}