Differentiate between SDK and demo app in Xcode console logs

Author: mokagio

Demo/ParselyDemo/FirstViewController.swift

@@ -6,27 +6,31 @@ class FirstViewController: UIViewController {
     let delegate = UIApplication.shared.delegate as! AppDelegate
 
     @IBAction func didTouchButton(_ sender: Any) {
-        os_log("didTouchButton", log: OSLog.default, type: .debug)
+        log("didTouchButton")
         let demoMetas = ParselyMetadata(authors: ["Yogi Berr"])
         delegate.parsely.trackPageView(url: "http://parsely.com/path/cool-blog-post/1?qsarg=nawp&anotherone=yup", metadata: demoMetas, extraData: ["product-id": "12345"], siteId: "subdomain.parsely-test.com")
     }
 
     @IBAction func didStartEngagement(_ sender: Any) {
-        os_log("didStartEngagement", log: OSLog.default, type: .debug)
+        log("didStartEngagement")
         delegate.parsely.startEngagement(url: "http://parsely.com/very-not-real", urlref:"http://parsely.com/not-real", extraData: ["product-id": "12345"], siteId: "engaged.parsely-test.com")
     }
 
     @IBAction func didStopEngagement(_ sender: Any) {
-        os_log("didStopEngagement", log: OSLog.default, type: .debug)
+        log("didStopEngagement")
         delegate.parsely.stopEngagement()
     }
     @IBAction func didStartVideo(_ sender: Any) {
-        os_log("didStartVideo", log: OSLog.default, type: .debug)
+        log("didStartVideo")
         let demoMetas = ParselyMetadata(authors: ["Yogi Berr"], duration: TimeInterval(10))
         delegate.parsely.trackPlay(url: "http://parsely.com/path/cool-blog-post/1?qsarg=nawp&anotherone=yup", urlref: "not-a-real-urlref", videoID: "videoOne", duration: TimeInterval(6000), metadata: demoMetas, extraData: ["product-id": "12345", "ts": "should be overwritten"])
     }
     @IBAction func didPauseVideo(_ sender: Any) {
-        os_log("didStopVideo", log: OSLog.default, type: .debug)
+        log("didStopVideo")
         delegate.parsely.trackPause()
     }
+
+    private func log(_ message: String) {
+        os_log("[Parsely Demo App] %@", log: OSLog.default, type: .debug, message)
+    }
 }