♻️ Refactor formatters conditions

src/index.ts

@@ -50,7 +50,7 @@ const objEmpty = (obj: object) => Object.keys(obj).length === 0;
 
 // This is a custom slightly edited version of pino-multistream's write method, which adds support for maximum log level
 // The original version was pino-multistream 4.2.0 (commit bf7941f) - https://github.com/pinojs/pino-multi-stream/blob/bf7941f77661b6c14dd40840ff4a4db6897f08eb/multistream.js#L43
-const maxLevelWrite: pino.WriteFn = function(this: any, data: object): void {
+const maxLevelWrite: pino.WriteFn = function (this: any, data: object): void {
     let stream;
     const metadata = Symbol.for('pino.metadata');
     const level = this.lastLevel;
@@ -89,12 +89,12 @@ const initFormatters = (options: CosmasOptions & { loggerName?: string }) => {
 
     // do not put logger name field to pretty outputs
     formatters.log = (object: { [key: string]: any }) => {
-        if (options.loggerName && !options.pretty) {
-            object[loggerNameKey] = options.loggerName;
-        }
+        if (options.pretty) return object;
+
         // put pkgVersion to non-pretty outputs
-        if (!options.pretty) {
-            object[pkgVersionKey] = pkgJson.version;
+        object[pkgVersionKey] = pkgJson.version;
+        if (options.loggerName) {
+            object[loggerNameKey] = options.loggerName;
         }
         return object;
     };
@@ -106,7 +106,7 @@ const initHooks = (options: CosmasOptions & { loggerName?: string }) => {
     if (!options.loggerName) return hooks;
 
     // always put logger name to message
-    hooks.logMethod = function(inputArgs, method) {
+    hooks.logMethod = function (inputArgs, method) {
         const text = inputArgs[inputArgs.length - 1];
         if (typeof text === 'string' || text instanceof String) {
             inputArgs[inputArgs.length - 1] = `[${options.loggerName}] ${text}`;