Convert forever-ui to a Kotlin Multiplatform module

app/shared/forever-ui/build.gradle.kts

@@ -1,5 +1,6 @@
 plugins {
-  id("hedvig.android.library")
+  id("hedvig.multiplatform.library")
+  id("hedvig.multiplatform.library.android")
   id("hedvig.gradle.plugin")
 }
 
@@ -10,22 +11,40 @@ hedvig {
   viewModels()
 }
 
-dependencies {
-  implementation(libs.androidx.other.core)
-  implementation(libs.apollo.normalizedCache)
-  implementation(libs.arrow.core)
-  implementation(libs.coroutines.core)
-  implementation(libs.jetbrains.lifecycle.runtime.compose)
-  implementation(projects.apolloCore)
-  implementation(projects.apolloOctopusPublic)
-  implementation(projects.composeUi)
-  implementation(projects.coreBuildConstants)
-  implementation(projects.coreCommonPublic)
-  implementation(projects.coreDemoMode)
-  implementation(projects.coreResources)
-  implementation(projects.coreUiData)
-  implementation(projects.designSystemHedvig)
-  implementation(projects.languageCore)
-  implementation(projects.moleculePublic)
-  implementation(projects.pullrefresh)
+kotlin {
+  sourceSets {
+    commonMain.dependencies {
+      implementation(libs.apollo.api)
+      implementation(libs.apollo.normalizedCache)
+      implementation(libs.apollo.runtime)
+      implementation(libs.arrow.core)
+      implementation(libs.coroutines.core)
+      implementation(libs.jetbrains.compose.animation)
+      implementation(libs.jetbrains.compose.foundation)
+      implementation(libs.jetbrains.compose.runtime)
+      implementation(libs.jetbrains.compose.ui)
+      implementation(libs.jetbrains.compose.ui.tooling.preview)
+      implementation(libs.jetbrains.lifecycle.runtime.compose)
+      implementation(libs.uri.kmp)
+      implementation(projects.apolloCore)
+      implementation(projects.apolloOctopusPublic)
+      implementation(projects.composeUi)
+      implementation(projects.coreBuildConstants)
+      implementation(projects.coreCommonPublic)
+      implementation(projects.coreDemoMode)
+      implementation(projects.coreResources)
+      implementation(projects.coreUiData)
+      implementation(projects.designSystemHedvig)
+      implementation(projects.languageCore)
+      implementation(projects.moleculePublic)
+      implementation(projects.pullrefresh)
+    }
+    androidMain.dependencies {
+      implementation(libs.androidx.other.core)
+    }
+    jvmTest.dependencies {
+      implementation(libs.assertK)
+      implementation(libs.junit)
+    }
+  }
 }

app/shared/forever-ui/src/androidMain/kotlin/com/hedvig/android/shared/foreverui/ui/ui/ReferralSharing.android.kt

@@ -0,0 +1,34 @@
+package com.hedvig.android.shared.foreverui.ui.ui
+
+import android.content.Intent
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.remember
+import androidx.compose.ui.platform.LocalContext
+import hedvig.resources.REFERRALS_SHARE_SHEET_TITLE
+import hedvig.resources.Res
+import org.jetbrains.compose.resources.stringResource
+
+@Composable
+internal actual fun rememberShareHandler(): (text: String) -> Unit {
+  val context = LocalContext.current
+  val shareSheetTitle = stringResource(Res.string.REFERRALS_SHARE_SHEET_TITLE)
+  return remember(context, shareSheetTitle) {
+    { text ->
+      context.showShareSheet(shareSheetTitle) { intent ->
+        intent.putExtra(
+          Intent.EXTRA_TEXT,
+          text,
+        )
+        intent.type = "text/plain"
+      }
+    }
+  }
+}
+
+@Composable
+internal actual fun rememberCopyToClipboard(): (text: String) -> Unit {
+  val context = LocalContext.current
+  return remember(context) {
+    { text -> context.copyToClipboard(text) }
+  }
+}

app/shared/forever-ui/src/main/kotlin/com/hedvig/android/shared/foreverui/ui/ui/ForeverDestination.kt → app/shared/forever-ui/src/commonMain/kotlin/com/hedvig/android/shared/foreverui/ui/ui/ForeverDestination.kt

@@ -1,6 +1,5 @@
 package com.hedvig.android.shared.foreverui.ui.ui
 
-import android.content.Intent
 import androidx.compose.animation.AnimatedContent
 import androidx.compose.animation.fadeIn
 import androidx.compose.animation.fadeOut
@@ -35,7 +34,6 @@ import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
-import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.platform.LocalDensity
 import androidx.compose.ui.semantics.contentDescription
 import androidx.compose.ui.semantics.heading
@@ -86,7 +84,6 @@ import com.hedvig.android.shared.foreverui.ui.ui.ForeverUiState.Success
 import hedvig.resources.FOREVER_TAB_MONTHLY_DISCOUNT
 import hedvig.resources.OFFER_COST_AND_PREMIUM_PERIOD_ABBREVIATION
 import hedvig.resources.REFERRALS_INFO_BUTTON_CONTENT_DESCRIPTION
-import hedvig.resources.REFERRALS_SHARE_SHEET_TITLE
 import hedvig.resources.REFERRAL_SMS_MESSAGE
 import hedvig.resources.Res
 import hedvig.resources.TAB_REFERRALS_TITLE
@@ -106,8 +103,7 @@ import org.jetbrains.compose.resources.stringResource
 @Composable
 fun ForeverDestination(viewModel: ForeverViewModel) {
   val uiState by viewModel.uiState.collectAsStateWithLifecycle()
-  val context = LocalContext.current
-  val shareSheetTitle = stringResource(Res.string.REFERRALS_SHARE_SHEET_TITLE)
+  val shareText = rememberShareHandler()
   val coroutineScope = rememberCoroutineScope()
   val resourceEnvironment = rememberResourceEnvironment()
   ForeverScreen(
@@ -126,13 +122,7 @@ fun ForeverDestination(viewModel: ForeverViewModel) {
           incentive.toString(),
           viewModel.referralShareUrl(code),
         )
-        context.showShareSheet(shareSheetTitle) { intent ->
-          intent.putExtra(
-            Intent.EXTRA_TEXT,
-            string,
-          )
-          intent.type = "text/plain"
-        }
+        shareText(string)
       }
     },
   )
@@ -465,10 +455,10 @@ private fun ForeverScrollableContent(
 
 @Composable
 internal fun ReferralCodeCard(campaignCode: String, modifier: Modifier = Modifier) {
-  val context = LocalContext.current
+  val copyToClipboard = rememberCopyToClipboard()
   HedvigBigCard(
     onClick = {
-      context.copyToClipboard(campaignCode)
+      copyToClipboard(campaignCode)
     },
     enabled = true,
     modifier = modifier.fillMaxWidth(),

app/shared/forever-ui/src/main/kotlin/com/hedvig/android/shared/foreverui/ui/ui/ForeverViewModel.kt → app/shared/forever-ui/src/commonMain/kotlin/com/hedvig/android/shared/foreverui/ui/ui/ForeverViewModel.kt

@@ -1,6 +1,5 @@
 package com.hedvig.android.shared.foreverui.ui.ui
 
-import android.net.Uri
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.getValue
@@ -9,6 +8,7 @@ import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
 import arrow.core.raise.either
+import com.eygraber.uri.Uri
 import com.hedvig.android.core.buildconstants.HedvigBuildConstants
 import com.hedvig.android.core.common.di.ActivityRetainedScope
 import com.hedvig.android.core.common.di.HedvigViewModel

app/shared/forever-ui/src/commonMain/kotlin/com/hedvig/android/shared/foreverui/ui/ui/ReferralSharing.kt

@@ -0,0 +1,9 @@
+package com.hedvig.android.shared.foreverui.ui.ui
+
+import androidx.compose.runtime.Composable
+
+@Composable
+internal expect fun rememberShareHandler(): (text: String) -> Unit
+
+@Composable
+internal expect fun rememberCopyToClipboard(): (text: String) -> Unit

app/shared/forever-ui/src/jvmMain/kotlin/com/hedvig/android/shared/foreverui/ui/ui/ReferralSharing.jvm.kt

@@ -0,0 +1,18 @@
+package com.hedvig.android.shared.foreverui.ui.ui
+
+import androidx.compose.runtime.Composable
+import java.awt.Toolkit
+import java.awt.datatransfer.StringSelection
+
+/**
+ * There is no system share sheet on the JVM, so sharing puts the text on the system clipboard.
+ */
+@Composable
+internal actual fun rememberShareHandler(): (text: String) -> Unit = ::copyToSystemClipboard
+
+@Composable
+internal actual fun rememberCopyToClipboard(): (text: String) -> Unit = ::copyToSystemClipboard
+
+private fun copyToSystemClipboard(text: String) {
+  Toolkit.getDefaultToolkit().systemClipboard.setContents(StringSelection(text), null)
+}

app/shared/forever-ui/src/jvmTest/kotlin/com/hedvig/android/shared/foreverui/ui/ui/ReferralCodeUrlEncodingTest.kt

@@ -0,0 +1,43 @@
+package com.hedvig.android.shared.foreverui.ui.ui
+
+import assertk.assertThat
+import assertk.assertions.isEqualTo
+import com.eygraber.uri.Uri
+import org.junit.Test
+
+/**
+ * [ForeverViewModel.referralShareUrl] percent-encodes the referral code with [Uri.encode]. The expected values are what
+ * `android.net.Uri.encode` produces: letters, digits and `_-!.~'()*` stay as they are, everything else becomes UTF-8
+ * percent-encoded, and a space becomes `%20`.
+ */
+class ReferralCodeUrlEncodingTest {
+  @Test
+  fun `letters and digits are unchanged`() {
+    assertThat(Uri.encode("HEDV1G")).isEqualTo("HEDV1G")
+    assertThat(Uri.encode("abc123")).isEqualTo("abc123")
+  }
+
+  @Test
+  fun `unreserved punctuation is unchanged`() {
+    assertThat(Uri.encode("_-!.~'()*")).isEqualTo("_-!.~'()*")
+  }
+
+  @Test
+  fun `space becomes percent 20`() {
+    assertThat(Uri.encode("MY CODE")).isEqualTo("MY%20CODE")
+  }
+
+  @Test
+  fun `reserved characters are percent-encoded`() {
+    assertThat(Uri.encode("A+B")).isEqualTo("A%2BB")
+    assertThat(Uri.encode("A/B")).isEqualTo("A%2FB")
+    assertThat(Uri.encode("A&B")).isEqualTo("A%26B")
+    assertThat(Uri.encode("A%B")).isEqualTo("A%25B")
+  }
+
+  @Test
+  fun `non-ASCII characters are percent-encoded as UTF-8`() {
+    assertThat(Uri.encode("KÖD")).isEqualTo("K%C3%96D")
+    assertThat(Uri.encode("å")).isEqualTo("%C3%A5")
+  }
+}