chore: initialize native ios sdk in flutter (#160)

ios/Classes/Bridge/CustomerIOSDKConfigMapper.swift

@@ -0,0 +1,59 @@
+import CioDataPipelines
+
+enum SDKConfigBuilderError: Error {
+    case missingCdpApiKey
+}
+
+extension SDKConfigBuilder {
+    private enum Config: String {
+        case migrationSiteId
+        case cdpApiKey
+        case region
+        case logLevel
+        case autoTrackDeviceAttributes
+        case trackApplicationLifecycleEvents
+        case flushAt
+        case flushInterval
+        case apiHost
+        case cdnHost
+    }
+
+    @available(iOSApplicationExtension, unavailable)
+    static func create(from config: [String: Any?]) throws -> SDKConfigBuilder {
+        guard let cdpApiKey = config[Config.cdpApiKey.rawValue] as? String else {
+            throw SDKConfigBuilderError.missingCdpApiKey
+        }
+
+        let builder = SDKConfigBuilder(cdpApiKey: cdpApiKey)
+        Config.migrationSiteId.ifNotNil(in: config, thenPassItTo: builder.migrationSiteId)
+        Config.region.ifNotNil(in: config, thenPassItTo: builder.region, transformingBy: Region.getRegion)
+        Config.logLevel.ifNotNil(in: config, thenPassItTo: builder.logLevel, transformingBy: CioLogLevel.getLogLevel)
+        Config.autoTrackDeviceAttributes.ifNotNil(in: config, thenPassItTo: builder.autoTrackDeviceAttributes)
+        Config.trackApplicationLifecycleEvents.ifNotNil(in: config, thenPassItTo: builder.trackApplicationLifecycleEvents)
+        Config.flushAt.ifNotNil(in: config, thenPassItTo: builder.flushAt) { (value: NSNumber) in value.intValue }
+        Config.flushInterval.ifNotNil(in: config, thenPassItTo: builder.flushInterval) { (value: NSNumber) in value.doubleValue }
+        Config.apiHost.ifNotNil(in: config, thenPassItTo: builder.apiHost)
+        Config.cdnHost.ifNotNil(in: config, thenPassItTo: builder.cdnHost)
+
+        return builder
+    }
+}
+
+extension RawRepresentable where RawValue == String {
+    func ifNotNil<Raw>(
+        in config: [String: Any?]?,
+        thenPassItTo handler: (Raw) -> Any
+    ) {
+        ifNotNil(in: config, thenPassItTo: handler) { $0 }
+    }
+
+    func ifNotNil<Raw, Transformed>(
+        in config: [String: Any?]?,
+        thenPassItTo handler: (Transformed) -> Any,
+        transformingBy transform: (Raw) -> Transformed?
+    ) {
+        if let value = config?[self.rawValue] as? Raw, let result = transform(value) {
+            _ = handler(result)
+        }
+    }
+}

ios/Classes/SwiftCustomerIoPlugin.swift

@@ -1,12 +1,15 @@
 import Flutter
 import UIKit
+import CioDataPipelines
 import CioInternalCommon
 import CioMessagingInApp
 
 public class SwiftCustomerIoPlugin: NSObject, FlutterPlugin {
 
     private var methodChannel: FlutterMethodChannel!
     private var inAppMessagingChannelHandler: CusomterIOInAppMessaging!
+
+    private let logger: CioInternalCommon.Logger = DIGraphShared.shared.logger
 
     public static func register(with registrar: FlutterPluginRegistrar) {
         let instance = SwiftCustomerIoPlugin()
@@ -175,29 +178,15 @@ public class SwiftCustomerIoPlugin: NSObject, FlutterPlugin {
     }
 
     private func initialize(params : Dictionary<String, AnyHashable>){
-        // TODO: Fix initialize implementation
-        /*
-        guard let siteId = params[Keys.Environment.siteId] as? String,
-              let apiKey = params[Keys.Environment.apiKey] as? String,
-              let regionStr = params[Keys.Environment.region] as? String
-        else {
-            return
-        }
-        
-        let region = Region.getRegion(from: regionStr)
-        
-        CustomerIO.initialize(siteId: siteId, apiKey: apiKey, region: region){
-            config in
-            config.modify(params: params)
-        }
-        
-        
-        if let enableInApp = params[Keys.Environment.enableInApp] as? Bool {
-            if enableInApp{
-                initializeInApp()
-            }
+        do {
+            let sdkConfigBuilder = try SDKConfigBuilder.create(from: params)
+            CustomerIO.initialize(withConfig: sdkConfigBuilder.build())
+
+            // TODO: Initialize in-app module with given config
+            logger.debug("Customer.io SDK initialized with config: \(params)")
+        } catch {
+            logger.error("Initializing Customer.io SDK failed with error: \(error)")
         }
-        */
     }
 
     /**