feat: add logs screen and custom logger

Author: thunderbiscuit

app/src/main/java/org/bitcoindevkit/devkitwallet/domain/DwLogger.kt

@@ -0,0 +1,22 @@
+package org.bitcoindevkit.devkitwallet.domain
+
+object DwLogger {
+    private const val MAX_LOGS = 5000
+    private val logEntries = ArrayDeque<String>(MAX_LOGS)
+    private val lock = Any()
+
+    fun log(tag: String, message: String) {
+        synchronized(lock) {
+            if (logEntries.size >= MAX_LOGS) {
+                logEntries.removeLast()
+            }
+            logEntries.addFirst("${System.currentTimeMillis()} [$tag]: $message")
+        }
+    }
+
+    fun getLogs(): List<String> {
+        synchronized(lock) {
+            return logEntries.toList()
+        }
+    }
+}

app/src/main/java/org/bitcoindevkit/devkitwallet/presentation/DevkitWalletActivity.kt

@@ -20,6 +20,7 @@ import org.bitcoindevkit.devkitwallet.data.RecoverWalletConfig
 import org.bitcoindevkit.devkitwallet.data.SingleWallet
 import org.bitcoindevkit.devkitwallet.data.UserPreferences
 import org.bitcoindevkit.devkitwallet.data.UserPreferencesSerializer
+import org.bitcoindevkit.devkitwallet.domain.DwLogger
 import org.bitcoindevkit.devkitwallet.domain.UserPreferencesRepository
 import org.bitcoindevkit.devkitwallet.domain.Wallet
 import org.bitcoindevkit.devkitwallet.presentation.navigation.HomeNavigation
@@ -36,6 +37,10 @@ private val Context.userPreferencesStore: DataStore<UserPreferences> by dataStor
 class DevkitWalletActivity : AppCompatActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
+
+        // Initialize Devkit Wallet Logger (used in the LogsScreen)
+        DwLogger.log("INFO", "Devkit Wallet app started")
+
         val userPreferencesRepository = UserPreferencesRepository(userPreferencesStore)
         val onBuildWalletButtonClicked: (WalletCreateType) -> Unit = { walletCreateType ->
             try {
@@ -86,6 +91,7 @@ class DevkitWalletActivity : AppCompatActivity() {
 
             setContent {
                 if (!onboardingDone) {
+                    DwLogger.log("INFO", "First time opening the app, triggering onboarding screen")
                     OnboardingScreen(onFinishOnboarding)
                 } else {
                     DevkitTheme {

app/src/main/java/org/bitcoindevkit/devkitwallet/presentation/navigation/Destinations.kt

@@ -26,6 +26,8 @@ object AboutScreen
 object RecoveryPhraseScreen
 @Serializable
 object BlockchainClientScreen
+@Serializable
+object LogsScreen
 
 // Wallet navigation destinations
 @Serializable

app/src/main/java/org/bitcoindevkit/devkitwallet/presentation/navigation/HomeNavigation.kt

@@ -16,6 +16,7 @@ import org.bitcoindevkit.devkitwallet.domain.Wallet
 import org.bitcoindevkit.devkitwallet.presentation.ui.screens.WalletRoot
 import org.bitcoindevkit.devkitwallet.presentation.ui.screens.drawer.AboutScreen
 import org.bitcoindevkit.devkitwallet.presentation.ui.screens.drawer.BlockchainClientScreen
+import org.bitcoindevkit.devkitwallet.presentation.ui.screens.drawer.LogsScreen
 import org.bitcoindevkit.devkitwallet.presentation.ui.screens.drawer.RecoveryPhraseScreen
 import org.bitcoindevkit.devkitwallet.presentation.viewmodels.WalletViewModel
 
@@ -89,5 +90,20 @@ fun HomeNavigation(
             state = walletViewModel.state,
             navController = navController
         ) }
+
+        composable<LogsScreen>(
+            enterTransition = {
+                slideIntoContainer(AnimatedContentTransitionScope.SlideDirection.Start, animationSpec = tween(ANIMATION_DURATION))
+            },
+            popEnterTransition = {
+                slideIntoContainer(AnimatedContentTransitionScope.SlideDirection.Start, animationSpec = tween(ANIMATION_DURATION))
+            },
+            exitTransition = {
+                slideOutOfContainer(AnimatedContentTransitionScope.SlideDirection.Start, animationSpec = tween(ANIMATION_DURATION))
+            },
+            popExitTransition = {
+                slideOutOfContainer(AnimatedContentTransitionScope.SlideDirection.Start, animationSpec = tween(ANIMATION_DURATION))
+            }
+        ) { LogsScreen(navController = navController) }
     }
 }

app/src/main/java/org/bitcoindevkit/devkitwallet/presentation/ui/screens/WalletRoot.kt

@@ -42,12 +42,14 @@ import com.composables.icons.lucide.History
 import com.composables.icons.lucide.Info
 import com.composables.icons.lucide.Lucide
 import com.composables.icons.lucide.SatelliteDish
+import com.composables.icons.lucide.ScrollText
 import org.bitcoindevkit.devkitwallet.presentation.theme.DevkitWalletColors
 import org.bitcoindevkit.devkitwallet.presentation.navigation.WalletNavigation
 import org.bitcoindevkit.devkitwallet.R
 import org.bitcoindevkit.devkitwallet.domain.Wallet
 import org.bitcoindevkit.devkitwallet.presentation.navigation.AboutScreen
 import org.bitcoindevkit.devkitwallet.presentation.navigation.BlockchainClientScreen
+import org.bitcoindevkit.devkitwallet.presentation.navigation.LogsScreen
 import org.bitcoindevkit.devkitwallet.presentation.navigation.RecoveryPhraseScreen
 import org.bitcoindevkit.devkitwallet.presentation.theme.quattroRegular
 import org.bitcoindevkit.devkitwallet.presentation.viewmodels.WalletViewModel
@@ -144,6 +146,14 @@ internal fun WalletRoot(
                         colors = navigationItemColors,
                         modifier = Modifier.padding(NavigationDrawerItemDefaults.ItemPadding),
                     )
+                    NavigationDrawerItem(
+                        icon = { Icon(Lucide.ScrollText, contentDescription = "Logs", tint = DevkitWalletColors.white) },
+                        label = { DrawerItemLabel("Logs") },
+                        selected = items[3] == selectedItem.value,
+                        onClick = { navController.navigate(LogsScreen) },
+                        colors = navigationItemColors,
+                        modifier = Modifier.padding(NavigationDrawerItemDefaults.ItemPadding),
+                    )
                 }
             }
         },

app/src/main/java/org/bitcoindevkit/devkitwallet/presentation/ui/screens/drawer/LogsScreen.kt

@@ -0,0 +1,66 @@
+/*
+ * Copyright 2021-2025 thunderbiscuit and contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the ./LICENSE file.
+ */
+
+package org.bitcoindevkit.devkitwallet.presentation.ui.screens.drawer
+
+import androidx.compose.foundation.horizontalScroll
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.items
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.material3.Scaffold
+import androidx.compose.runtime.remember
+import androidx.compose.ui.unit.sp
+import org.bitcoindevkit.devkitwallet.domain.DwLogger
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.unit.dp
+import androidx.navigation.NavController
+import org.bitcoindevkit.devkitwallet.presentation.navigation.WalletScreen
+import org.bitcoindevkit.devkitwallet.presentation.theme.DevkitWalletColors
+import org.bitcoindevkit.devkitwallet.presentation.theme.quattroRegular
+import org.bitcoindevkit.devkitwallet.presentation.ui.components.SecondaryScreensAppBar
+
+@Composable
+fun LogsScreen(
+    navController: NavController
+) {
+    val logs: List<String> = remember { DwLogger.getLogs() }
+
+    Scaffold(
+        topBar = {
+            SecondaryScreensAppBar(
+                title = "Logs",
+                navigation = { navController.navigate(WalletScreen) }
+            )
+        },
+        containerColor = DevkitWalletColors.primary
+    ) { paddingValues ->
+        LazyColumn(
+            modifier = Modifier
+                .fillMaxSize()
+                .padding(paddingValues)
+                .padding(16.dp)
+        ) {
+            items(logs) { logLine ->
+                Text(
+                    text = logLine,
+                    fontSize = 14.sp,
+                    fontFamily = quattroRegular,
+                    color = DevkitWalletColors.white,
+                    maxLines = 1,
+                    overflow = TextOverflow.Visible,
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .horizontalScroll(rememberScrollState())
+                )
+            }
+        }
+    }
+}

app/src/main/java/org/bitcoindevkit/devkitwallet/presentation/ui/screens/intro/ActiveWalletsScreen.kt

@@ -5,7 +5,6 @@
 
 package org.bitcoindevkit.devkitwallet.presentation.ui.screens.intro
 
-import android.util.Log
 import androidx.compose.foundation.background
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Arrangement
@@ -39,8 +38,6 @@ internal fun ActiveWalletsScreen(
     navController: NavController,
     onBuildWalletButtonClicked: (WalletCreateType) -> Unit
 ) {
-    Log.i(TAG, "Active wallets = $activeWallets")
-    Log.i(TAG, "Active wallets script types = ${activeWallets.first().scriptType}")
     Scaffold(
         topBar = {
             SecondaryScreensAppBar(title = "Choose a Wallet", navigation = { navController.navigateUp() })
@@ -56,6 +53,15 @@ internal fun ActiveWalletsScreen(
             activeWallets.forEach {
                 ActiveWalletCard(wallet = it, onBuildWalletButtonClicked)
             }
+            if (activeWallets.isEmpty()) {
+                Text(
+                    text = "No active wallets.",
+                    fontSize = 16.sp,
+                    fontFamily = quattroRegular,
+                    color = DevkitWalletColors.white,
+                    modifier = Modifier.padding(16.dp).align(Alignment.CenterHorizontally)
+                )
+            }
             Spacer(modifier = Modifier.height(12.dp))
         }
     }