From 25111552eb74a3d3bae765b3db04dc9bb983054a Mon Sep 17 00:00:00 2001
From: James Rich <2199651+jamesarich@users.noreply.github.com>
Date: Thu, 3 Jul 2025 12:42:04 +0000
Subject: [PATCH] feat: Add support for sharing contacts via deeplink (#2336)

Signed-off-by: James Rich <2199651+jamesarich@users.noreply.github.com>
---
 app/src/main/java/com/geeksville/mesh/MainActivity.kt    | 7 +++++++
 app/src/main/java/com/geeksville/mesh/model/UIState.kt   | 9 +++++++++
 .../com/geeksville/mesh/ui/sharing/ContactSharing.kt     | 9 +++++----
 3 files changed, 21 insertions(+), 4 deletions(-)

diff --git a/app/src/main/java/com/geeksville/mesh/MainActivity.kt b/app/src/main/java/com/geeksville/mesh/MainActivity.kt
index 1a3e4fefc..dd86e5a22 100644
--- a/app/src/main/java/com/geeksville/mesh/MainActivity.kt
+++ b/app/src/main/java/com/geeksville/mesh/MainActivity.kt
@@ -69,6 +69,7 @@ import com.geeksville.mesh.ui.MainMenuAction
 import com.geeksville.mesh.ui.MainScreen
 import com.geeksville.mesh.ui.common.theme.AppTheme
 import com.geeksville.mesh.ui.common.theme.MODE_DYNAMIC
+import com.geeksville.mesh.ui.sharing.toSharedContact
 import com.geeksville.mesh.ui.intro.AppIntroductionScreen
 import com.geeksville.mesh.util.Exceptions
 import com.geeksville.mesh.util.LanguageUtils
@@ -186,6 +187,12 @@ class MainActivity : AppCompatActivity(), Logging {
                     ) {
                         debug("App link data is a channel set")
                         model.requestChannelUrl(it)
+                    } else if (it.path?.startsWith("/v/") == true ||
+                        it.path?.startsWith("/V/") == true
+                    ) {
+                        val sharedContact = it.toSharedContact()
+                        debug("App link data is a shared contact: ${sharedContact.user.longName}")
+                        model.setSharedContactRequested(sharedContact)
                     } else {
                         debug("App link data is not a channel set")
                     }
diff --git a/app/src/main/java/com/geeksville/mesh/model/UIState.kt b/app/src/main/java/com/geeksville/mesh/model/UIState.kt
index 768f24a48..2ff35864b 100644
--- a/app/src/main/java/com/geeksville/mesh/model/UIState.kt
+++ b/app/src/main/java/com/geeksville/mesh/model/UIState.kt
@@ -623,6 +623,15 @@ class UIViewModel @Inject constructor(
         radioConfigRepository.onServiceAction(ServiceAction.Reaction(emoji, replyId, contactKey))
     }
 
+    private val _sharedContactRequested: MutableStateFlow<AdminProtos.SharedContact?> =
+        MutableStateFlow(null)
+    val sharedContactRequested: StateFlow<AdminProtos.SharedContact?> get() = _sharedContactRequested.asStateFlow()
+    fun setSharedContactRequested(sharedContact: AdminProtos.SharedContact?) {
+        viewModelScope.launch {
+            _sharedContactRequested.value = sharedContact
+        }
+    }
+
     fun addSharedContact(sharedContact: AdminProtos.SharedContact) = viewModelScope.launch {
         radioConfigRepository.onServiceAction(ServiceAction.AddSharedContact(sharedContact))
     }
diff --git a/app/src/main/java/com/geeksville/mesh/ui/sharing/ContactSharing.kt b/app/src/main/java/com/geeksville/mesh/ui/sharing/ContactSharing.kt
index 86b7cd1b2..7806d4922 100644
--- a/app/src/main/java/com/geeksville/mesh/ui/sharing/ContactSharing.kt
+++ b/app/src/main/java/com/geeksville/mesh/ui/sharing/ContactSharing.kt
@@ -53,6 +53,7 @@ import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import androidx.core.net.toUri
 import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import com.geeksville.mesh.AdminProtos
 import com.geeksville.mesh.MeshProtos
 import com.geeksville.mesh.R
@@ -82,7 +83,7 @@ fun AddContactFAB(
     onSharedContactImport: (AdminProtos.SharedContact) -> Unit = {},
 ) {
     val context = LocalContext.current
-    var contactToImport: AdminProtos.SharedContact? by remember { mutableStateOf(null) }
+    val contactToImport: AdminProtos.SharedContact? by model.sharedContactRequested.collectAsStateWithLifecycle(null)
 
     val barcodeLauncher = rememberLauncherForActivityResult(ScanContract()) { result ->
         if (result.contents != null) {
@@ -94,7 +95,7 @@ fun AddContactFAB(
                 null
             }
             if (sharedContact != null) {
-                contactToImport = sharedContact
+                model.setSharedContactRequested(sharedContact)
             }
         }
     }
@@ -134,12 +135,12 @@ fun AddContactFAB(
             },
             dismissText = stringResource(R.string.cancel),
             onDismiss = {
-                contactToImport = null
+                model.setSharedContactRequested(null)
             },
             confirmText = stringResource(R.string.import_label),
             onConfirm = {
                 onSharedContactImport(contactToImport!!)
-                contactToImport = null
+                model.setSharedContactRequested(null)
             }
         )
     }