Add an Android Client Builder following Coil, Koin patterns

okhttp-android/src/main/kotlin/okhttp3/android/AndroidClientBuilder.kt

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+/*
+ * Copyright (c) 2022 Block, Inc.
+ *
+ * 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.
+ *
+ */
+package okhttp3.android
+
+import android.annotation.SuppressLint
+import android.content.Context
+import okhttp3.Cache
+import okhttp3.ConnectionPool
+import okhttp3.OkHttpClient
+import okhttp3.brotli.BrotliInterceptor
+
+@SuppressLint("NewApi")
+fun OkHttpClient.Companion.newAndroidClient(
+  context: Context,
+  debug: Boolean,
+  clientConfig: OkHttpClient.Builder.() -> Unit = {},
+): OkHttpClient {
+  val clientBuilder = OkHttpClient.Builder()
+    .addInterceptor(TracingInterceptor())
+//    .addInterceptor(AlwaysHttpsInterceptor.AndroidNetworkSecurityPolicy)
+    .apply {
+      if (debug) {
+//        eventListenerFactory(LoggingEventListener.AndroidLogging())
+      }
+    }
+
+  with(clientBuilder) {
+    clientConfig()
+  }
+
+  val cache = Cache(context.cacheDir.resolve("okhttp"), 10_000_000)
+
+  clientBuilder
+    .addInterceptor(BrotliInterceptor)
+    .connectionPool(ConnectionPool(connectionListener = TracingConnectionListener()))
+    .cache(cache)
+
+  return clientBuilder.build()
+}

okhttp-android/src/main/kotlin/okhttp3/android/OkHttpClientContext.kt

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+package okhttp3.android
+
+import android.content.Context
+import android.content.pm.ApplicationInfo
+import okhttp3.OkHttpClient
+
+
+object OkHttpClientContext {
+  private var _okHttpClient: OkHttpClient? = null
+
+  val Context.okHttpClient: OkHttpClient
+    get() {
+      return _okHttpClient ?: newOkHttpClient(this)
+    }
+
+  @Synchronized
+  private fun newOkHttpClient(context: Context): OkHttpClient {
+    _okHttpClient?.let { return it }
+
+    val newOkHttpClient = (context.applicationContext as? OkHttpClientFactory)?.newOkHttpClient()
+      ?: OkHttpClient.newAndroidClient(context = context, debug = context.isDebug)
+    _okHttpClient = newOkHttpClient
+    return newOkHttpClient
+  }
+
+  private val Context.isDebug: Boolean
+    get() = (applicationInfo.flags and ApplicationInfo.FLAG_DEBUGGABLE) != 0
+}

okhttp-android/src/main/kotlin/okhttp3/android/OkHttpClientFactory.kt

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+package okhttp3.android
+
+import okhttp3.OkHttpClient
+
+interface OkHttpClientFactory {
+  fun newOkHttpClient(): OkHttpClient
+}