Restructuring, prepare for room, Discord support

src/response.rs

@@ -0,0 +1,62 @@
+use crate::word::Word;
+
+use serde::Serialize;
+use simple_websockets::Message;
+
+#[derive(Serialize)]
+pub struct MessageResponse {
+    event: String,
+    data: MessageResponseData,
+}
+
+impl MessageResponse {
+    pub fn to_message(&self) -> Message {
+        Message::Text(serde_json::to_string(&self).unwrap())
+    }
+}
+
+#[derive(Serialize)]
+#[serde(untagged)]
+pub enum MessageResponseData {
+    Greeting {
+        id: u64,
+        next_mora: Option<String>,
+    },
+    Word {
+        author: u64,
+        word: Word,
+        next_mora: String,
+    },
+    History {
+        words: Vec<Word>,
+    },
+    PlayerCount {
+        players: u64,
+    },
+    Error {
+        message: String,
+    },
+}
+
+impl MessageResponseData {
+    pub fn get_name(&self) -> String {
+        String::from(match self {
+            Self::Greeting { .. } => "greeting",
+            Self::Word { .. } => "word",
+            Self::History { .. } => "history",
+            Self::PlayerCount { .. } => "playerCount",
+            Self::Error { .. } => "error",
+        })
+    }
+
+    pub fn into_response(self) -> MessageResponse {
+        MessageResponse {
+            event: self.get_name(),
+            data: self,
+        }
+    }
+
+    pub fn into_message(self) -> Message {
+        self.into_response().to_message()
+    }
+}