refactor: merge both shard systems

src/ws/start_gateway.ts

@@ -0,0 +1,51 @@
+import { StartGatewayOptions } from "./start_gateway_options.ts";
+import { DiscordGatewayIntents } from "../types/gateway/gateway_intents.ts";
+import { ws } from "./ws.ts";
+
+/** ADVANCED DEVS ONLY!!!!!!
+ * Starts the standalone gateway.
+ * This will require starting the bot separately.
+ */
+export async function startGateway(options: StartGatewayOptions) {
+  ws.identifyPayload.token = `Bot ${options.token}`;
+  ws.secretKey = options.secretKey;
+  ws.firstShardID = options.firstShardID;
+  ws.url = options.url;
+  if (options.shardsPerCluster) ws.shardsPerCluster = options.shardsPerCluster;
+  if (options.maxClusters) ws.maxClusters = options.maxClusters;
+
+  if (options.compress) {
+    ws.identifyPayload.compress = options.compress;
+  }
+  if (options.reshard) ws.reshard = options.reshard;
+  // Once an hour check if resharding is necessary
+  setInterval(ws.resharder, 1000 * 60 * 60);
+
+  ws.identifyPayload.intents = options.intents.reduce(
+    (bits, next) =>
+      (bits |= typeof next === "string" ? DiscordGatewayIntents[next] : next),
+    0
+  );
+
+  const data = (await fetch(`https://discord.com/api/gateway/bot`, {
+    headers: { Authorization: ws.identifyPayload.token },
+  }).then((res) => res.json())) as DiscordBotGatewayData;
+
+  ws.maxShards = options.maxShards || data.shards;
+  ws.lastShardID = options.lastShardID || data.shards - 1;
+
+  // TODO: ALL THE FOLLOWING CAN BE REPLACED BY THIS 1 LINE
+  // ws.botGatewayData = snakeToCamel(await getGatewayBot())
+  ws.botGatewayData.sessionStartLimit.total = data.session_start_limit.total;
+  ws.botGatewayData.sessionStartLimit.resetAfter =
+    data.session_start_limit.reset_after;
+  ws.botGatewayData.sessionStartLimit.remaining =
+    data.session_start_limit.remaining;
+  ws.botGatewayData.sessionStartLimit.maxConcurrency =
+    data.session_start_limit.max_concurrency;
+  ws.botGatewayData.shards = data.shards;
+  ws.botGatewayData.url = data.url;
+
+  ws.spawnShards(ws.firstShardID);
+  ws.cleanupLoadingShards();
+}