From 6d69e15d7ea317053e8dea7951d969ec4b197e83 Mon Sep 17 00:00:00 2001
From: Ren Amamiya <reyakov@proton.me>
Date: Thu, 25 Jun 2026 14:00:23 +0700
Subject: [PATCH] add prune database function

---
 shared/src/commonMain/kotlin/su/reya/coop/Nostr.kt     | 10 +++++++++-
 .../commonMain/kotlin/su/reya/coop/NostrViewModel.kt   |  7 +++++--
 2 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/shared/src/commonMain/kotlin/su/reya/coop/Nostr.kt b/shared/src/commonMain/kotlin/su/reya/coop/Nostr.kt
index 0ef6116..ca2ce5f 100644
--- a/shared/src/commonMain/kotlin/su/reya/coop/Nostr.kt
+++ b/shared/src/commonMain/kotlin/su/reya/coop/Nostr.kt
@@ -188,6 +188,14 @@ class Nostr {
         }
     }
 
+    suspend fun prune() {
+        try {
+            client?.database()?.wipe()
+        } catch (e: Exception) {
+            throw IllegalStateException("Failed to prune database: ${e.message}", e)
+        }
+    }
+
     suspend fun setSigner(new: AsyncNostrSigner) {
         try {
             signer.switch(new)
@@ -994,7 +1002,7 @@ class Nostr {
         try {
             val currentUser =
                 signer.getPublicKeyAsync() ?: throw IllegalStateException("User not signed in")
-            
+
             val kind = Kind.fromStd(KindStandard.CONTACT_LIST)
             val filter = Filter().kind(kind).author(currentUser).limit(1u)
 
diff --git a/shared/src/commonMain/kotlin/su/reya/coop/NostrViewModel.kt b/shared/src/commonMain/kotlin/su/reya/coop/NostrViewModel.kt
index 052c5d9..dd1aced 100644
--- a/shared/src/commonMain/kotlin/su/reya/coop/NostrViewModel.kt
+++ b/shared/src/commonMain/kotlin/su/reya/coop/NostrViewModel.kt
@@ -325,8 +325,11 @@ class NostrViewModel(
 
     fun logout() {
         viewModelScope.launch {
-            secretStore.clear("user_signer")
+            // Reset the nostr state and wipe database
             nostr.signer.switch(Keys.generate())
+            nostr.prune()
+            // Clear credential
+            secretStore.clear("user_signer")
             _signerRequired.value = true
         }
     }
@@ -821,7 +824,7 @@ class NostrViewModel(
         }
         return emptyList()
     }
-    
+
     suspend fun verifyActivity(pubkey: PublicKey): Timestamp? {
         return try {
             nostr.verifyActivity(pubkey)