Move Analytics from Managers to Modules.

Riot/Modules/Analytics/PostHogAnalyticsClient.swift

@@ -0,0 +1,65 @@
+// 
+// Copyright 2021 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import PostHog
+import AnalyticsEvents
+
+/// An analytics client that reports events to a PostHog server.
+class PostHogAnalyticsClient: AnalyticsClientProtocol {
+    /// The PHGPostHog object used to report events.
+    private var postHog: PHGPostHog?
+    
+    var isRunning: Bool { postHog?.enabled ?? false }
+    
+    func start() {
+        // Only start if analytics have been configured in BuildSettings
+        guard let configuration = PHGPostHogConfiguration.standard else { return }
+        
+        if postHog == nil {
+            postHog = PHGPostHog(configuration: configuration)
+        }
+        
+        postHog?.enable()
+    }
+    
+    func identify(id: String) {
+        postHog?.identify(id)
+    }
+    
+    func reset() {
+        postHog?.reset()
+    }
+    
+    func stop() {
+        postHog?.disable()
+        
+        // As of PostHog 1.4.4, setting the client to nil here doesn't release
+        // it. Keep it around to avoid having multiple instances if the user re-enables
+    }
+    
+    func flush() {
+        postHog?.flush()
+    }
+    
+    func capture(_ event: AnalyticsEventProtocol) {
+        postHog?.capture(event.eventName, properties: event.properties)
+    }
+    
+    func screen(_ event: AnalyticsScreenProtocol) {
+        postHog?.screen(event.screenName.rawValue, properties: event.properties)
+    }
+    
+}