add: getAllFeatureFlagDetails method

.changeset/polite-memes-look.md

@@ -0,0 +1,6 @@
+---
+"posthog": minor
+"posthog-android": minor
+---
+
+add getAllFeatureFlags support

posthog-android/src/test/java/com/posthog/android/PostHogFake.kt

@@ -80,6 +80,10 @@ public class PostHogFake : PostHogInterface {
         return null
     }
 
+    override fun getAllFeatureFlags(): List<FeatureFlagResult>? {
+        return null
+    }
+
     override fun flush() {
         flushes++
     }

posthog/api/posthog.api

@@ -32,6 +32,7 @@ public final class com/posthog/PostHog : com/posthog/PostHogStateless, com/posth
 	public fun distinctId ()Ljava/lang/String;
 	public fun endSession ()V
 	public fun flush ()V
+	public fun getAllFeatureFlags ()Ljava/util/List;
 	public fun getConfig ()Lcom/posthog/PostHogConfig;
 	public fun getDeviceId ()Ljava/lang/String;
 	public fun getFeatureFlag (Ljava/lang/String;Ljava/lang/Object;Ljava/lang/Boolean;)Ljava/lang/Object;
@@ -73,6 +74,7 @@ public final class com/posthog/PostHog$Companion : com/posthog/PostHogInterface
 	public fun distinctId ()Ljava/lang/String;
 	public fun endSession ()V
 	public fun flush ()V
+	public fun getAllFeatureFlags ()Ljava/util/List;
 	public fun getConfig ()Lcom/posthog/PostHogConfig;
 	public fun getDeviceId ()Ljava/lang/String;
 	public fun getFeatureFlag (Ljava/lang/String;Ljava/lang/Object;Ljava/lang/Boolean;)Ljava/lang/Object;
@@ -312,6 +314,7 @@ public abstract interface class com/posthog/PostHogInterface : com/posthog/PostH
 	public abstract fun captureFeatureView (Ljava/lang/String;Ljava/lang/String;)V
 	public abstract fun distinctId ()Ljava/lang/String;
 	public abstract fun endSession ()V
+	public abstract fun getAllFeatureFlags ()Ljava/util/List;
 	public abstract fun getConfig ()Lcom/posthog/PostHogConfig;
 	public abstract fun getDeviceId ()Ljava/lang/String;
 	public abstract fun getFeatureFlag (Ljava/lang/String;Ljava/lang/Object;Ljava/lang/Boolean;)Ljava/lang/Object;

posthog/src/main/java/com/posthog/PostHog.kt

@@ -1145,6 +1145,17 @@ public class PostHog private constructor(
         return flagValue
     }
 
+    public override fun getAllFeatureFlags(): List<FeatureFlagResult>? {
+        if (!isEnabled()) return null
+        val flags = remoteConfig?.getFeatureFlags()
+        val results =
+            flags?.mapNotNull { item ->
+                val featureFlagResult = remoteConfig?.getFeatureFlagResult(item.key)
+                featureFlagResult
+            }
+        return results
+    }
+
     public override fun getFeatureFlagPayload(
         key: String,
         defaultValue: Any?,
@@ -1551,6 +1562,10 @@ public class PostHog private constructor(
             sendFeatureFlagEvent: Boolean?,
         ): Any? = shared.getFeatureFlag(key, defaultValue = defaultValue, sendFeatureFlagEvent)
 
+        override fun getAllFeatureFlags(): List<FeatureFlagResult>? {
+            return shared.getAllFeatureFlags()
+        }
+
         public override fun getFeatureFlagPayload(
             key: String,
             defaultValue: Any?,

posthog/src/main/java/com/posthog/PostHogInterface.kt

@@ -68,6 +68,12 @@ public interface PostHogInterface : PostHogCoreInterface {
         sendFeatureFlagEvent: Boolean? = null,
     ): Any?
 
+    /**
+     * Returns list of all feature flag result containing both value and payload.
+     * Docs https://posthog.com/docs/feature-flags and https://posthog.com/docs/experiments
+     */
+    public fun getAllFeatureFlags(): List<FeatureFlagResult>?
+
     /**
      * Returns the feature flag payload
      * Docs https://posthog.com/docs/feature-flags and https://posthog.com/docs/experiments

posthog/src/test/java/com/posthog/PostHogTest.kt

@@ -24,6 +24,7 @@ import kotlin.test.AfterTest
 import kotlin.test.Test
 import kotlin.test.assertEquals
 import kotlin.test.assertFalse
+import kotlin.test.assertIs
 import kotlin.test.assertNotEquals
 import kotlin.test.assertNotNull
 import kotlin.test.assertNull
@@ -519,6 +520,39 @@ internal class PostHogTest {
         sut.close()
     }
 
+    @Test
+    fun `getAllFeatureFlags returns list of feature flags if enabled`() {
+        val file = File("src/test/resources/json/basic-flags-with-non-active-flags.json")
+        val responseFlagsApi = file.readText()
+        val http =
+            mockHttp(
+                response =
+                    MockResponse()
+                        .setBody(responseFlagsApi),
+            )
+        val url = http.url("/")
+
+        val sut = getSut(url.toString(), preloadFeatureFlags = false)
+
+        sut.reloadFeatureFlags()
+
+        remoteConfigExecutor.shutdownAndAwaitTermination()
+
+        val flags = sut.getAllFeatureFlags()
+
+        val result = flags?.first()
+
+        assertNotNull(result)
+        assertIs<FeatureFlagResult>(result)
+        assertEquals("4535-funnel-bar-viz", result.key)
+        assertTrue(result.enabled)
+        assertNull(result.variant)
+        assertTrue(result.payload as Boolean)
+        assertTrue(result.value as Boolean)
+
+        sut.close()
+    }
+
     @Test
     fun `getFeatureFlagResult returns the result after reloaded`() {
         val http =