refactor: merge both shard systems

src/ws/create_shard.ts

@@ -0,0 +1,49 @@
+import { identify } from "./identify.ts";
+import { handleOnMessage } from "./proxy/shard.ts";
+import { resume } from "./resume.ts";
+import { ws } from "./ws.ts";
+
+// deno-lint-ignore require-await
+export async function createShard(shardID: number) {
+  const socket = new WebSocket(ws.botGatewayData.url);
+  socket.binaryType = "arraybuffer";
+
+  socket.onerror = (errorEvent) => {
+    ws.log("ERROR", { shardID, error: errorEvent });
+  };
+
+  socket.onmessage = ({ data: message }) => handleOnMessage(message, shardID);
+
+  socket.onclose = (event) => {
+    ws.log("CLOSED", { shardID, payload: event });
+
+    // TODO: ENUM FOR THESE CODES?
+    switch (event.code) {
+      case 4001:
+      case 4002:
+      case 4004:
+      case 4005:
+      case 4010:
+      case 4011:
+      case 4012:
+      case 4013:
+      case 4014:
+        throw new Error(
+          event.reason || "Discord gave no reason! GG! You broke Discord!"
+        );
+      // THESE ERRORS CAN NO BE RESUMED! THEY MUST RE-IDENTIFY!
+      case 4003:
+      case 4007:
+      case 4008:
+      case 4009:
+        ws.log("CLOSED_RECONNECT", { shardID, payload: event });
+        identify(shardID, ws.maxShards);
+        break;
+      default:
+        resume(shardID);
+        break;
+    }
+  };
+
+  return socket;
+}