From 2fdf344d8be1cf9a2330935cc5e45233a7cefed8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mehmedalija=20Kari=C5=A1ik?= <mehmedalija@appollo41.com>
Date: Fri, 21 Feb 2025 15:55:30 +0100
Subject: [PATCH] Implement deep link for profile links (#332)

---
 app/src/main/AndroidManifest.xml                 | 15 +++++++++++++++
 .../navigation/deeplinking/DeepLinkingHandler.kt | 16 ++++++++++++++++
 2 files changed, 31 insertions(+)

diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 968bd5cce..1a85fe035 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -75,6 +75,20 @@
                     android:scheme="https" />
             </intent-filter>
 
+            <intent-filter
+                android:autoVerify="true"
+                android:label="Primal Profile">
+                <action android:name="android.intent.action.VIEW" />
+
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+
+                <data
+                    android:host="primal.net"
+                    android:pathPrefix="/p/"
+                    android:scheme="https" />
+            </intent-filter>
+
             <intent-filter android:label="Wallet Connect">
                 <action android:name="android.intent.action.VIEW" />
 
@@ -95,6 +109,7 @@
                 <data android:scheme="nostrnwc+primal" />
                 <data android:host="connect"/>
             </intent-filter>
+
         </activity>
 
         <provider
diff --git a/app/src/main/kotlin/net/primal/android/navigation/deeplinking/DeepLinkingHandler.kt b/app/src/main/kotlin/net/primal/android/navigation/deeplinking/DeepLinkingHandler.kt
index 2eaf17fc5..85f4b7cf6 100644
--- a/app/src/main/kotlin/net/primal/android/navigation/deeplinking/DeepLinkingHandler.kt
+++ b/app/src/main/kotlin/net/primal/android/navigation/deeplinking/DeepLinkingHandler.kt
@@ -8,6 +8,7 @@ import net.primal.android.user.domain.isNwcUrl
 import net.primal.android.user.domain.parseNWCUrl
 
 private val PRIMAL_NOTE_REGEX = Regex("https://.*primal.net/e/")
+private val PRIMAL_PROFILE_REGEX = Regex("https://.*primal.net/p/")
 
 private const val NOSTR_WALLET_CONNECT_SCHEMA = "nostr+walletconnect://"
 private const val NOSTR_WALLET_CONNECT_ALT_SCHEMA = "nostrwalletconnect://"
@@ -22,6 +23,11 @@ fun String.parseDeepLinkOrNull(): DeepLink? =
             unknownNoteIdentifier.resolveNoteId()?.let { DeepLink.Note(it) }
         }
 
+        PRIMAL_PROFILE_REGEX.containsMatchIn(this) -> {
+            val unknownProfileIdentifier = PRIMAL_PROFILE_REGEX.replace(this, "")
+            unknownProfileIdentifier.resolveProfileId()?.let { DeepLink.Profile(it) }
+        }
+
         isNostrWalletConnectSchemaAndUrl() ->
             runCatching {
                 DeepLink.NostrWalletConnect(nwc = this.parseNWCUrl())
@@ -35,6 +41,16 @@ fun String.parseDeepLinkOrNull(): DeepLink? =
         else -> null
     }
 
+private fun String.resolveProfileId(): String? =
+    when {
+        this.startsWith("npub") -> runCatching { bech32ToHexOrThrow() }.getOrNull()
+        this.startsWith("nprofile1") -> {
+            val pubkey = Nip19TLV.parseUriAsNprofileOrNull(this)?.pubkey
+            runCatching { pubkey?.bech32ToHexOrThrow() }.getOrNull()
+        }
+        else -> this
+    }
+
 private fun String.resolveNoteId(): String? =
     when {
         this.startsWith("note1") -> runCatching { bech32ToHexOrThrow() }.getOrNull()