DX improvements and more info in logs

.editorconfig

@@ -0,0 +1,14 @@
+# Apply to all files
+[*]
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+# Ruby specific rules
+[{*.rb,Fastfile,Gemfile}]
+indent_style = space
+indent_size = 2
+
+[*.{swift,h,m}]
+indent_style = space
+indent_size = 4

.github/workflows/ios.yml

@@ -34,11 +34,4 @@ jobs:
       with:
         xcode-version: ${{ matrix.xcode }}
     - name: Build and Test
-      run: |
-        xcodebuild test \
-          -project Demo/ParselyDemo.xcodeproj \
-          -scheme ParselyDemo \
-          -sdk iphonesimulator \
-          -destination 'platform=iOS Simulator,name=iPhone 14,OS=latest' \
-          | xcpretty \
-          && exit ${PIPESTATUS[0]}
+      run: make test

.gitignore

@@ -11,3 +11,7 @@ xcuserdata/*
 
 # Ruby tooling
 vendor/bundle
+
+
+# SwiftLint Remote Config Cache
+.swiftlint/RemoteConfigCache

.swiftlint.yml

@@ -0,0 +1,7 @@
+swiftlint_version: 0.57.0
+
+parent_config: https://raw.githubusercontent.com/Automattic/swiftlint-config/b497131f8d0fddbf3b23278cfc4ef8d86c9bcb20/.swiftlint.yml
+remote_timeout: 10.0
+
+excluded:
+  - .build

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)
+    }
 }

Makefile

@@ -0,0 +1,22 @@
+# TODO: Use newer Sim. Sticking with it at the moment because we know it works in the existing GitHub action setup.
+SIMULATOR_NAME ?= iPhone 14
+SIMULATOR_OS ?= latest
+XCODE_PATH ?= /Applications/Xcode.app
+
+# Convenience to open the lib and demo project with Xcode, given it's not in the root.
+open:
+	open -a $(XCODE_PATH) ./Demo/ParselyDemo.xcodeproj
+
+# TODO: Move off xcpretty to xcbeautify. Sticking with it at the moment because we know it works in the existing GitHub action setup.
+test:
+	set -o pipefail \
+		&& xcodebuild test \
+		-project Demo/ParselyDemo.xcodeproj \
+		-scheme ParselyDemo \
+		-sdk iphonesimulator \
+		-destination 'platform=iOS Simulator,name=$(SIMULATOR_NAME),OS=$(SIMULATOR_OS)' \
+		| xcpretty
+
+# TODO: Add automation to set up SwiftLint
+format:
+	swiftlint --fix --format

Sources/Sampler.swift

@@ -147,18 +147,28 @@ class Sampler {
             os_log("No accumulator found for %s, skipping sendHeartbeat", log: OSLog.tracker, type:.debug, key)
             return
         }
+        let now = Date()
         let incSecs: TimeInterval = trackedData.accumulatedTime
         if incSecs > 0 {
-            os_log("Sending heartbeat for %s", log: OSLog.tracker, type:.debug, key)
+            os_log(
+                "Sending heartbeat for %s. Timestamp: %s.",
+                log: OSLog.tracker,
+                type:.debug,
+                key,
+                now.description
+            )
             heartbeatFn(data: trackedData, enableHeartbeats: true)
         }
         trackedData.accumulatedTime = 0
-        let totalTrackedTime: TimeInterval = Date().timeIntervalSince(trackedData.firstSampleTime!);
-        trackedData.heartbeatTimeout = self.getHeartbeatInterval(
+        let totalTrackedTime: TimeInterval = now.timeIntervalSince(trackedData.firstSampleTime!)
+        trackedData.heartbeatTimeout = getHeartbeatInterval(
             existingTimeout: trackedData.heartbeatTimeout!,
-            totalTrackedTime: totalTrackedTime)
+            totalTrackedTime: totalTrackedTime
+        )
         updateAccumulator(acc: trackedData)
         heartbeatInterval = trackedData.heartbeatTimeout!
+
+        os_log("Send heartbeat completed. New heartbeat timeout %.2f seconds.", trackedData.heartbeatTimeout!)
     }
 
     @objc internal func sendHeartbeats() -> Void {

Sources/Track.swift

@@ -22,8 +22,7 @@ class Track {
         parselyTracker.startFlushTimer();
 
         pixel.beacon(event: event)
-        os_log("Sending an event from Track", log: OSLog.tracker, type:.debug)
-        dump(event.toDict())
+        os_log_sending_event(event)
     }
 
     func pageview(url: String, urlref: String = "", metadata: ParselyMetadata?, extra_data: Dictionary<String, Any>?, idsite: String) {
@@ -82,3 +81,10 @@ class Track {
         videoManager.sendHeartbeats()
     }
 }
+
+/// Utility to log sending event with a dump of the event.
+private func os_log_sending_event(_ event: Event, log: OSLog = .tracker, type: OSLogType = .debug) {
+    var eventDump = ""
+    dump(event.toDict(), to: &eventDump)
+    os_log("Sending an event from Track:\n%@", log: log, type: type, eventDump)
+}