237 lines
7 KiB
Rust
237 lines
7 KiB
Rust
//! WebSocket message protocol for channel presence.
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//!
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//! Shared message types used by both server and WASM client.
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use serde::{Deserialize, Serialize};
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use uuid::Uuid;
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use crate::models::{AvatarRenderData, ChannelMemberInfo, ChannelMemberWithAvatar, LooseProp};
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/// Default function for serde that returns true (for is_same_scene field).
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/// Must be pub for serde derive macro to access via full path.
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pub fn default_is_same_scene() -> bool {
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true
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}
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/// WebSocket configuration sent to client on connect.
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#[derive(Debug, Clone, Serialize, Deserialize)]
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pub struct WsConfig {
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/// Interval for client to send ping to keep connection alive (seconds).
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pub ping_interval_secs: u64,
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}
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/// WebSocket close codes (custom range: 4000-4999).
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pub mod close_codes {
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/// Scene change (user navigating to different scene).
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pub const SCENE_CHANGE: u16 = 4000;
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/// Server timeout (no message received within timeout period).
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pub const SERVER_TIMEOUT: u16 = 4001;
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}
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/// Reason for member disconnect.
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#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
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#[serde(rename_all = "snake_case")]
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pub enum DisconnectReason {
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/// Graceful disconnect (browser close, normal WebSocket close).
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Graceful,
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/// Scene navigation (custom close code 4000).
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SceneChange,
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/// Timeout (connection lost, no ping response).
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Timeout,
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}
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/// Client-to-server WebSocket messages.
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#[derive(Debug, Clone, Serialize, Deserialize)]
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#[serde(tag = "type", rename_all = "snake_case")]
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pub enum ClientMessage {
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/// Update position in the channel.
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UpdatePosition {
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/// X coordinate in scene space.
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x: f64,
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/// Y coordinate in scene space.
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y: f64,
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},
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/// Update emotion by name.
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UpdateEmotion {
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/// Emotion name (e.g., "happy", "sad", "neutral").
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emotion: String,
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},
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/// Ping to keep connection alive.
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Ping,
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/// Send a chat message to the channel or directly to a user.
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SendChatMessage {
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/// Message content (max 500 chars).
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content: String,
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/// Target display name for direct whisper. None = broadcast to scene.
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#[serde(default)]
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target_display_name: Option<String>,
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},
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/// Drop a prop from inventory to the canvas.
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DropProp {
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/// Inventory item ID to drop.
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inventory_item_id: Uuid,
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},
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/// Pick up a loose prop from the canvas.
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PickUpProp {
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/// Loose prop ID to pick up.
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loose_prop_id: Uuid,
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},
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/// Request to broadcast avatar appearance to other users.
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SyncAvatar,
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/// Request to teleport to a different scene.
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Teleport {
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/// Scene ID to teleport to.
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scene_id: Uuid,
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},
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}
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/// Server-to-client WebSocket messages.
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#[derive(Debug, Clone, Serialize, Deserialize)]
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#[serde(tag = "type", rename_all = "snake_case")]
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pub enum ServerMessage {
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/// Welcome message with initial state after connection.
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Welcome {
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/// This user's member info.
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member: ChannelMemberInfo,
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/// All current members with avatars.
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members: Vec<ChannelMemberWithAvatar>,
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/// WebSocket configuration for the client.
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config: WsConfig,
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},
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/// A member joined the channel.
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MemberJoined {
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/// The member that joined.
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member: ChannelMemberWithAvatar,
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},
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/// A member left the channel.
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MemberLeft {
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/// User ID (if authenticated user).
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user_id: Option<Uuid>,
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/// Guest session ID (if guest).
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guest_session_id: Option<Uuid>,
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/// Reason for disconnect.
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reason: DisconnectReason,
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},
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/// A member updated their position.
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PositionUpdated {
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/// User ID (if authenticated user).
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user_id: Option<Uuid>,
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/// Guest session ID (if guest).
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guest_session_id: Option<Uuid>,
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/// New X coordinate.
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x: f64,
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/// New Y coordinate.
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y: f64,
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},
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/// A member changed their emotion.
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EmotionUpdated {
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/// User ID (if authenticated user).
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user_id: Option<Uuid>,
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/// Guest session ID (if guest).
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guest_session_id: Option<Uuid>,
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/// Emotion name (e.g., "happy", "sad", "neutral").
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emotion: String,
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/// Asset paths for all 9 positions of the new emotion layer.
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emotion_layer: [Option<String>; 9],
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},
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/// Pong response to client ping.
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Pong,
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/// Error message.
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Error {
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/// Error code.
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code: String,
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/// Error message.
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message: String,
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},
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/// A chat message was received.
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ChatMessageReceived {
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/// Unique message ID.
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message_id: Uuid,
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/// User ID of sender (if authenticated user).
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user_id: Option<Uuid>,
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/// Guest session ID (if guest).
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guest_session_id: Option<Uuid>,
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/// Display name of sender.
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display_name: String,
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/// Message content.
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content: String,
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/// Emotion name for bubble styling (e.g., "happy", "sad", "neutral").
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emotion: String,
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/// Sender's X position at time of message.
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x: f64,
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/// Sender's Y position at time of message.
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y: f64,
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/// Server timestamp (milliseconds since epoch).
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timestamp: i64,
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/// Whether this is a whisper (direct message).
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/// Default: false (broadcast message).
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#[serde(default)]
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is_whisper: bool,
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/// Whether sender is in the same scene as recipient.
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/// For whispers: true = same scene (show as bubble), false = cross-scene (show as notification).
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/// For broadcasts: always true.
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/// Default: true (same scene).
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#[serde(default = "self::default_is_same_scene")]
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is_same_scene: bool,
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},
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/// Initial list of loose props when joining channel.
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LoosePropsSync {
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/// All current loose props in the channel.
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props: Vec<LooseProp>,
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},
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/// A prop was dropped on the canvas.
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PropDropped {
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/// The dropped prop.
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prop: LooseProp,
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},
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/// A prop was picked up from the canvas.
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PropPickedUp {
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/// ID of the prop that was picked up.
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prop_id: Uuid,
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/// User ID who picked it up (if authenticated).
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picked_up_by_user_id: Option<Uuid>,
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/// Guest session ID who picked it up (if guest).
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picked_up_by_guest_id: Option<Uuid>,
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},
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/// A prop expired and was removed.
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PropExpired {
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/// ID of the expired prop.
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prop_id: Uuid,
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},
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/// A member updated their avatar appearance.
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AvatarUpdated {
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/// User ID (if authenticated user).
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user_id: Option<Uuid>,
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/// Guest session ID (if guest).
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guest_session_id: Option<Uuid>,
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/// Updated avatar render data.
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avatar: AvatarRenderData,
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},
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/// Teleport approved - client should disconnect and reconnect to new scene.
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TeleportApproved {
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/// Scene ID to navigate to.
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scene_id: Uuid,
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/// Scene slug for URL.
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scene_slug: String,
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},
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}
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