add websocket server to this dir. fix stuff for client

websocket_server/node_modules/socket.io-adapter/dist/contrib/yeast.d.ts

@@ -0,0 +1,23 @@
+/**
+ * Return a string representing the specified number.
+ *
+ * @param {Number} num The number to convert.
+ * @returns {String} The string representation of the number.
+ * @api public
+ */
+export declare function encode(num: any): string;
+/**
+ * Return the integer value specified by the given string.
+ *
+ * @param {String} str The string to convert.
+ * @returns {Number} The integer value represented by the string.
+ * @api public
+ */
+export declare function decode(str: any): number;
+/**
+ * Yeast: A tiny growing id generator.
+ *
+ * @returns {String} A unique id.
+ * @api public
+ */
+export declare function yeast(): string;

websocket_server/node_modules/socket.io-adapter/dist/contrib/yeast.js

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+// imported from https://github.com/unshiftio/yeast
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.yeast = exports.decode = exports.encode = void 0;
+const alphabet = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_".split(""), length = 64, map = {};
+let seed = 0, i = 0, prev;
+/**
+ * Return a string representing the specified number.
+ *
+ * @param {Number} num The number to convert.
+ * @returns {String} The string representation of the number.
+ * @api public
+ */
+function encode(num) {
+    let encoded = "";
+    do {
+        encoded = alphabet[num % length] + encoded;
+        num = Math.floor(num / length);
+    } while (num > 0);
+    return encoded;
+}
+exports.encode = encode;
+/**
+ * Return the integer value specified by the given string.
+ *
+ * @param {String} str The string to convert.
+ * @returns {Number} The integer value represented by the string.
+ * @api public
+ */
+function decode(str) {
+    let decoded = 0;
+    for (i = 0; i < str.length; i++) {
+        decoded = decoded * length + map[str.charAt(i)];
+    }
+    return decoded;
+}
+exports.decode = decode;
+/**
+ * Yeast: A tiny growing id generator.
+ *
+ * @returns {String} A unique id.
+ * @api public
+ */
+function yeast() {
+    const now = encode(+new Date());
+    if (now !== prev)
+        return (seed = 0), (prev = now);
+    return now + "." + encode(seed++);
+}
+exports.yeast = yeast;
+//
+// Map each character to its index.
+//
+for (; i < length; i++)
+    map[alphabet[i]] = i;