Data layer and baseline profile

baselineprofile/build.gradle.kts

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+plugins {
+    alias(libs.plugins.android.test)
+    alias(libs.plugins.androidx.baselineprofile)
+}
+
+// Generates the app's baseline profile on a connected device (the test TV, logged in):
+// ./gradlew :app:generateReleaseBaselineProfile
+android {
+    namespace = "ru.stenfredd.movies.baselineprofile"
+    compileSdk = 37
+    defaultConfig {
+        minSdk = 28
+        targetSdk = 36
+        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+    }
+    targetProjectPath = ":app"
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_17
+        targetCompatibility = JavaVersion.VERSION_17
+    }
+}
+
+baselineProfile {
+    useConnectedDevices = true
+}
+
+dependencies {
+    implementation(libs.androidx.test.junit)
+    implementation(libs.androidx.uiautomator)
+    implementation(libs.androidx.benchmark.macro.junit4)
+}

baselineprofile/src/main/kotlin/ru/stenfredd/movies/baselineprofile/BaselineProfileGenerator.kt

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+package ru.stenfredd.movies.baselineprofile
+
+import androidx.benchmark.macro.junit4.BaselineProfileRule
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import androidx.test.uiautomator.By
+import androidx.test.uiautomator.Until
+import org.junit.Rule
+import org.junit.Test
+import org.junit.runner.RunWith
+
+/**
+ * Records which code the app runs on its main path, so it is compiled ahead of time on install instead of being
+ * interpreted and JIT-compiled while the user scrolls (first passes over a screen used to drop frames).
+ *
+ * Path: cold start → home (snapshot, then fresh data) → along "Continue watching" → down through the rows, along
+ * each → open a card → back. The device must be logged in.
+ *
+ * Run: `./gradlew :app:generateReleaseBaselineProfile` with the TV connected over adb. The result is written to
+ * `app/src/release/generated/baselineProfiles/` and goes into the release APK.
+ */
+@RunWith(AndroidJUnit4::class)
+class BaselineProfileGenerator {
+    @get:Rule
+    val rule = BaselineProfileRule()
+
+    @Test
+    fun generate() = rule.collect(packageName = PACKAGE, includeInStartupProfile = true) {
+        pressHome()
+        startActivityAndWait()
+        check(device.wait(Until.hasObject(By.text("Продолжить просмотр")), 15_000)) { "Home did not show: is the TV logged in?" }
+        // Let the fresh data replace the snapshot.
+        device.waitForIdle()
+        Thread.sleep(2_000)
+
+        repeat(3) { press { device.pressDPadRight() } }
+        repeat(3) { press { device.pressDPadLeft() } }
+        repeat(ROWS) {
+            press { device.pressDPadDown() }
+            repeat(6) { press { device.pressDPadRight() } }
+        }
+        repeat(ROWS) { press { device.pressDPadUp() } }
+
+        press { device.pressDPadCenter() }
+        Thread.sleep(2_000)
+        press { device.pressBack() }
+        Thread.sleep(1_000)
+    }
+
+    private inline fun press(action: () -> Unit) {
+        action()
+        Thread.sleep(400)
+    }
+
+    private companion object {
+        const val PACKAGE = "ru.stenfredd.movies"
+        const val ROWS = 6
+    }
+}