feat(invite): add custom invite sheet with targeted messaging intents

apps/flipcash/app/build.gradle.kts

@@ -161,6 +161,7 @@ dependencies {
     implementation(project(":apps:flipcash:shared:permissions"))
     implementation(project(":apps:flipcash:shared:phone"))
     implementation(project(":apps:flipcash:shared:shareable"))
+    implementation(project(":apps:flipcash:shared:invite"))
     implementation(project(":apps:flipcash:shared:tokens"))
     implementation(project(":apps:flipcash:shared:web"))
     implementation(project(":apps:flipcash:shared:workers"))
@@ -186,6 +187,7 @@ dependencies {
     implementation(project(":apps:flipcash:features:bill-customization"))
     implementation(project(":apps:flipcash:features:currency-creator"))
     implementation(project(":apps:flipcash:features:direct-send"))
+    implementation(project(":apps:flipcash:features:invite"))
     implementation(project(":apps:flipcash:features:discovery"))
     implementation(project(":apps:flipcash:features:userflags"))
 

apps/flipcash/app/src/main/AndroidManifest.xml

@@ -26,6 +26,23 @@
             <action android:name="android.intent.action.VIEW" />
             <data android:host="phantom.app" />
         </intent>
+
+        <intent>
+            <action android:name="android.intent.action.MAIN" />
+            <category android:name="android.intent.category.APP_MESSAGING" />
+        </intent>
+
+        <intent>
+            <action android:name="android.intent.action.SENDTO" />
+            <data android:scheme="smsto" />
+        </intent>
+
+        <!-- Messaging apps for invite share sheet filtering -->
+        <package android:name="com.whatsapp" />
+        <package android:name="com.whatsapp.w4b" />
+        <package android:name="org.thoughtcrime.securesms" />
+        <package android:name="org.telegram.messenger" />
+        <package android:name="com.facebook.orca" />
     </queries>
 
     <application

apps/flipcash/app/src/main/kotlin/com/flipcash/app/MainActivity.kt

@@ -32,6 +32,8 @@ import com.flipcash.app.router.LocalRouter
 import com.flipcash.app.router.Router
 import com.flipcash.app.session.LocalSessionController
 import com.flipcash.app.session.SessionController
+import com.flipcash.app.invite.InviteController
+import com.flipcash.app.invite.LocalInviteController
 import com.flipcash.app.shareable.LocalShareController
 import com.flipcash.app.shareable.ShareSheetController
 import com.flipcash.app.updates.AppUpdateController
@@ -96,6 +98,9 @@ class MainActivity : FragmentActivity() {
     @Inject
     lateinit var shareController: ShareSheetController
 
+    @Inject
+    lateinit var inviteController: InviteController
+
     @Inject
     lateinit var appSettingsCoordinator: AppSettingsCoordinator
 
@@ -140,6 +145,7 @@ class MainActivity : FragmentActivity() {
                 LocalUserManager provides userManager,
                 LocalSessionController provides sessionController,
                 LocalShareController provides shareController,
+                LocalInviteController provides inviteController,
                 LocalAppSettings provides appSettingsCoordinator,
                 LocalFeatureFlags provides featureFlagController,
                 LocalPhoneUtils provides phoneUtils,

apps/flipcash/app/src/main/kotlin/com/flipcash/app/internal/ui/navigation/AppScreenContent.kt

@@ -29,6 +29,7 @@ import com.flipcash.app.currencycreator.CurrencyCreatorFlowScreen
 import com.flipcash.app.core.AppRoute
 import com.flipcash.app.currency.RegionSelectionScreen
 import com.flipcash.app.deposit.DepositFlowScreen
+import com.flipcash.app.invite.InviteContactScreen
 import com.flipcash.app.discovery.TokenDiscoveryScreen
 import com.flipcash.app.internal.ui.navigation.decorators.rememberNavMessagingEntryDecorator
 import com.flipcash.app.lab.LabsScreen
@@ -79,16 +80,16 @@ fun appEntryProvider(
     annotatedEntry<AppRoute.Main.AppRestricted> { key -> AppRestrictedScreen(key.restrictionType) }
     annotatedEntry<AppRoute.Main.Scanner> { ScannerScreen() }
     annotatedEntry<AppRoute.Main.RegionSelection> { RegionSelectionScreen() }
+    annotatedEntry<AppRoute.Main.InviteContact> { key -> InviteContactScreen(key.phoneNumber) }
 
     // Sheets (inner content — wrapped in Main.Sheet by navigateTo())
     annotatedEntry<AppRoute.Sheets.Give> { key -> CashScreen(key.mint, key.fromTokenInfo) }
-    annotatedEntry<AppRoute.Sheets.Send> {  }
+    annotatedEntry<AppRoute.Sheets.Send> { }
     annotatedEntry<AppRoute.Sheets.TokenSelection> { key -> TokenSelectScreen(key.purpose) }
     annotatedEntry<AppRoute.Sheets.Wallet> { BalanceScreen() }
     annotatedEntry<AppRoute.Sheets.ShareApp> { ShareAppScreen() }
     annotatedEntry<AppRoute.Sheets.Menu> { MenuScreen() }
 
-
     // Tokens
     annotatedEntry<AppRoute.Token.Info> { key ->
         TokenInfoScreen(key.mint, key.shortfall, key.fromDeeplink)
@@ -97,6 +98,7 @@ fun appEntryProvider(
     annotatedEntry<AppRoute.Token.Swap> { key ->
         SwapFlowScreen(route = key, resultStateRegistry = resultStateRegistry)
     }
+    // TODO: fold this into above entry
     annotatedEntry<AppRoute.Token.TxProcessing> { key ->
         TokenTxProcessingScreen(key.swapId, key.swapPurpose, key.amount, key.isFundingShortfall)
     }
@@ -120,6 +122,7 @@ fun appEntryProvider(
     annotatedEntry<AppRoute.Menu.DeviceLogs> { DeviceLogsScreen() }
 
     annotatedEntry<AppRoute.UserFlags> { UserFlagsScreen() }
+
     // Transfers
     annotatedEntry<AppRoute.Transfers.Deposit> { key ->
         DepositFlowScreen(route = key, resultStateRegistry = resultStateRegistry)

apps/flipcash/core/src/main/kotlin/com/flipcash/app/core/AppRoute.kt

@@ -101,6 +101,9 @@ sealed interface AppRoute : NavKey, Parcelable {
         @Serializable
         data object RegionSelection : Main
 
+        @Serializable
+        data class InviteContact(val phoneNumber: String) : com.getcode.navigation.Sheet, com.getcode.navigation.WrapContentSheet
+
         @Serializable
         @Parcelize
         data class Sheet(

apps/flipcash/core/src/main/kotlin/com/flipcash/app/core/util/Linkify.kt

@@ -8,6 +8,8 @@ import com.getcode.utils.urlEncode
 object Linkify {
     fun cashLink(entropy: String): String = "https://send.flipcash.com/c/#/e=${entropy}"
     fun download(shareRef: String): String = "https://flipcash.com/download?r=${shareRef}"
+    fun whatsApp(phoneNumber: String, message: String): String =
+        "https://wa.me/${phoneNumber.removePrefix("+")}?text=${message.urlEncode()}"
     fun tweet(message: String): String = "https://www.twitter.com/intent/tweet?text=${message.urlEncode()}"
     fun tokenInfo(token: Token): String = tokenInfo(token.address)
     fun tokenInfo(mint: Mint): String = "https://app.flipcash.com/token/${mint.base58()}"

apps/flipcash/core/src/main/kotlin/com/flipcash/app/core/util/MessagingPackages.kt

@@ -0,0 +1,14 @@
+package com.flipcash.app.core.util
+
+object MessagingPackages {
+    val whatsApp = listOf(
+        "com.whatsapp",
+        "com.whatsapp.w4b",
+    )
+
+    val all = setOf(
+        "org.thoughtcrime.securesms",       // Signal
+        "org.telegram.messenger",           // Telegram
+        "com.facebook.orca",                // Messenger
+    ) + whatsApp
+}

apps/flipcash/core/src/main/res/values/strings.xml

@@ -152,6 +152,8 @@
 
     <string name="title_shareDownloadLink">Get the Flipcash App</string>
     <string name="title_shareCashLink">Send %1$s</string>
+    <string name="title_inviteContact">Invite to Flipcash</string>
+    <string name="message_invite_contact">Download Flipcash so I can send you money\n\n%1$s</string>
 
     <string name="title_enterAddress">Enter Solana address</string>
     <string name="subtitle_whereWithdrawTo">Where would you like to withdraw your %1$s to?</string>
@@ -693,4 +695,7 @@
     <string name="content_description_leaderboard">Learn more</string>
     <string name="prompt_title_learnAboutLeaderboard">Leaderboard Ranking</string>
     <string name="prompt_description_learnAboutLeaderboard">People must have a minimum balance of %1$s to be counted</string>
+
+    <string name="action_invite">Invite</string>
+    <string name="action_inviteMoreOptions">More</string>
 </resources>

apps/flipcash/features/invite/.gitignore

@@ -0,0 +1,2 @@
+build/
+.gradle/

apps/flipcash/features/invite/build.gradle.kts

@@ -0,0 +1,11 @@
+plugins {
+    alias(libs.plugins.flipcash.android.feature)
+}
+
+android {
+    namespace = "${Gradle.flipcashNamespace}.features.invite"
+}
+
+dependencies {
+    implementation(project(":apps:flipcash:shared:invite"))
+}

apps/flipcash/features/invite/src/main/kotlin/com/flipcash/app/invite/InviteContactScreen.kt

@@ -0,0 +1,102 @@
+package com.flipcash.app.invite
+
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.MoreHoriz
+import androidx.compose.material3.Icon
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.unit.dp
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import coil3.compose.AsyncImage
+import com.flipcash.core.R
+import com.getcode.navigation.scenes.LocalBottomSheetDismissDispatcher
+import com.getcode.theme.CodeTheme
+import com.getcode.ui.core.rememberedClickable
+
+@Composable
+fun InviteContactScreen(phoneNumber: String) {
+    val controller = LocalInviteController.current
+    val dismiss = LocalBottomSheetDismissDispatcher.current
+    val channels by controller.channels.collectAsStateWithLifecycle()
+
+    Column(
+        modifier = Modifier
+            .fillMaxWidth()
+            .padding(
+                horizontal = CodeTheme.dimens.inset,
+                vertical = CodeTheme.dimens.grid.x4,
+            ),
+        horizontalAlignment = Alignment.CenterHorizontally,
+    ) {
+        Text(
+            text = stringResource(R.string.title_inviteContact),
+            style = CodeTheme.typography.textLarge,
+            color = CodeTheme.colors.textMain,
+            modifier = Modifier.padding(bottom = CodeTheme.dimens.grid.x4),
+        )
+
+        Row(
+            modifier = Modifier.fillMaxWidth(),
+            horizontalArrangement = Arrangement.SpaceEvenly,
+        ) {
+            channels.forEach { channel ->
+                ChannelItem(
+                    channel = channel,
+                    onClick = {
+                        controller.launch(channel, phoneNumber)
+                        dismiss()
+                    },
+                )
+            }
+        }
+    }
+}
+
+@Composable
+private fun ChannelItem(
+    channel: InviteChannel,
+    onClick: () -> Unit,
+) {
+    Column(
+        modifier = Modifier
+            .rememberedClickable(onClick = onClick)
+            .padding(CodeTheme.dimens.grid.x2),
+        horizontalAlignment = Alignment.CenterHorizontally,
+        verticalArrangement = Arrangement.spacedBy(CodeTheme.dimens.grid.x1),
+    ) {
+        if (channel.icon != null) {
+            AsyncImage(
+                model = channel.icon,
+                contentDescription = channel.label,
+                modifier = Modifier.size(CodeTheme.dimens.staticGrid.x10),
+            )
+        } else {
+            Icon(
+                imageVector = Icons.Filled.MoreHoriz,
+                contentDescription = channel.label,
+                modifier = Modifier.size(CodeTheme.dimens.staticGrid.x10),
+                tint = CodeTheme.colors.textMain,
+            )
+        }
+        Text(
+            text = channel.label,
+            style = CodeTheme.typography.textSmall,
+            color = CodeTheme.colors.textMain,
+            textAlign = TextAlign.Center,
+            maxLines = 1,
+            overflow = TextOverflow.Ellipsis,
+        )
+    }
+}

apps/flipcash/shared/invite/.gitignore

@@ -0,0 +1,2 @@
+build/
+.gradle/

apps/flipcash/shared/invite/build.gradle.kts

@@ -0,0 +1,11 @@
+plugins {
+    alias(libs.plugins.flipcash.android.feature)
+}
+
+android {
+    namespace = "${Gradle.flipcashNamespace}.shared.invite"
+}
+
+dependencies {
+    implementation(project(":apps:flipcash:shared:shareable"))
+}

apps/flipcash/shared/invite/src/main/kotlin/com/flipcash/app/invite/InviteController.kt

@@ -0,0 +1,34 @@
+package com.flipcash.app.invite
+
+import android.graphics.drawable.Drawable
+import androidx.compose.runtime.ProvidableCompositionLocal
+import androidx.compose.runtime.staticCompositionLocalOf
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+
+data class InviteChannel(
+    val label: String,
+    val icon: Drawable?,
+    val type: InviteChannelType,
+)
+
+sealed interface InviteChannelType {
+    data object Sms : InviteChannelType
+    data class WhatsApp(val packageName: String) : InviteChannelType
+    data object More : InviteChannelType
+}
+
+interface InviteController {
+    val channels: StateFlow<List<InviteChannel>>
+    fun refresh()
+    fun launch(channel: InviteChannel, phoneNumber: String)
+}
+
+private object NoOpInviteController : InviteController {
+    override val channels: StateFlow<List<InviteChannel>> = MutableStateFlow(emptyList())
+    override fun refresh() = Unit
+    override fun launch(channel: InviteChannel, phoneNumber: String) = Unit
+}
+
+val LocalInviteController: ProvidableCompositionLocal<InviteController> =
+    staticCompositionLocalOf { NoOpInviteController }

apps/flipcash/shared/invite/src/main/kotlin/com/flipcash/app/invite/inject/InviteModule.kt

@@ -0,0 +1,30 @@
+package com.flipcash.app.invite.inject
+
+import android.content.Context
+import com.flipcash.app.invite.InviteController
+import com.flipcash.app.invite.internal.InternalInviteController
+import com.flipcash.app.shareable.ShareSheetController
+import com.getcode.util.resources.ResourceHelper
+import dagger.Module
+import dagger.Provides
+import dagger.hilt.InstallIn
+import dagger.hilt.android.qualifiers.ApplicationContext
+import dagger.hilt.components.SingletonComponent
+import javax.inject.Singleton
+
+@Module
+@InstallIn(SingletonComponent::class)
+object InviteModule {
+
+    @Provides
+    @Singleton
+    fun provideInviteController(
+        @ApplicationContext context: Context,
+        resources: ResourceHelper,
+        shareController: ShareSheetController,
+    ): InviteController = InternalInviteController(
+        context = context,
+        resources = resources,
+        shareController = shareController,
+    )
+}