ui: home screen

- monochrome launcher icon

app/build.gradle.kts

@@ -85,6 +85,10 @@ dependencies {
     implementation(libs.androidx.activity.ktx)
     implementation(libs.androidx.material3)
     implementation(libs.androidx.material)
+
+    debugImplementation("androidx.compose.ui:ui-tooling:1.4.3")
+    implementation("androidx.compose.ui:ui-tooling-preview:1.4.3")
+    implementation(kotlin("reflect"))
 }
 
 afterEvaluate {

app/src/main/AndroidManifest.xml

@@ -7,16 +7,16 @@
     <uses-permission android:name="android.permission.DOWNLOAD_WITHOUT_NOTIFICATION" />
     <uses-permission android:name="android.permission.INTERNET" />
 
-    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
-    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"
-        tools:ignore="ScopedStorage" />
-    <uses-permission android:name="android.permission.MANAGE_EXTERNAL_STORAGE"
-        tools:ignore="ScopedStorage" />
+    <queries>
+        <package android:name="com.snapchat.android" />
+    </queries>
+
     <application
         android:usesCleartextTraffic="true"
         android:requestLegacyExternalStorage="true"
         android:label="@string/app_name"
-        tools:targetApi="31"
+        tools:targetApi="34"
+        android:enableOnBackInvokedCallback="true"
         android:icon="@mipmap/launcher_icon">
         <meta-data
             android:name="xposedmodule"

app/src/main/kotlin/me/rhunk/snapenhance/manager/MainActivity.kt

@@ -16,10 +16,12 @@ import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Scaffold
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.tooling.preview.Preview
 import androidx.navigation.compose.NavHost
 import androidx.navigation.compose.composable
 import androidx.navigation.compose.navigation
 import androidx.navigation.compose.rememberNavController
+import me.rhunk.snapenhance.manager.data.ManagerContext
 
 class MainActivity : ComponentActivity() {
     @SuppressLint("UnusedMaterialScaffoldPaddingParameter")
@@ -27,39 +29,23 @@ class MainActivity : ComponentActivity() {
         super.onCreate(savedInstanceState)
 
         setContent {
-            App()
+            App(ManagerContext(this))
         }
     }
 }
 
-@OptIn(ExperimentalMaterial3Api::class)
 @Composable
-fun App() {
+fun App(
+    context: ManagerContext
+) {
     val navController = rememberNavController()
+    val navigation = Navigation(context)
     AppMaterialTheme {
         Scaffold(
-            topBar = {
-                TopAppBar(
-                    title = { Text(text = "SnapEnhance") },
-                    actions = {
-                        IconButton(onClick = { /*TODO*/ }) {
-                            Icon(Icons.Filled.Settings, contentDescription = "Settings")
-                        }
-                    }
-                )
-            },
             containerColor = MaterialTheme.colorScheme.background,
-            bottomBar = { NavBar(navController = navController) }
+            bottomBar = { navigation.NavBar(navController = navController) }
         ) { innerPadding ->
-            NavHost(navController, startDestination = "main", Modifier.padding(innerPadding)) {
-                navigation(MainSections.HOME.route, "main") {
-                    MainSections.values().toList().forEach { section ->
-                        composable(section.route) {
-                            section.content()
-                        }
-                    }
-                }
-            }
+            navigation.NavigationHost(navController = navController, innerPadding = innerPadding)
         }
     }
 }

app/src/main/kotlin/me/rhunk/snapenhance/manager/Navigation.kt

@@ -1,77 +1,63 @@
 package me.rhunk.snapenhance.manager
 
 import androidx.compose.animation.core.animateDpAsState
+import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.fillMaxHeight
 import androidx.compose.foundation.layout.offset
+import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.requiredWidth
-import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.filled.BugReport
-import androidx.compose.material.icons.filled.Download
-import androidx.compose.material.icons.filled.Group
-import androidx.compose.material.icons.filled.Home
-import androidx.compose.material.icons.filled.Stars
 import androidx.compose.material3.Icon
 import androidx.compose.material3.NavigationBar
 import androidx.compose.material3.NavigationBarItem
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
+import androidx.compose.runtime.remember
 import androidx.compose.ui.Modifier
-import androidx.compose.ui.graphics.vector.ImageVector
 import androidx.compose.ui.unit.dp
 import androidx.navigation.NavController
 import androidx.navigation.NavDestination.Companion.hierarchy
 import androidx.navigation.NavGraph.Companion.findStartDestination
+import androidx.navigation.NavHostController
+import androidx.navigation.compose.NavHost
+import androidx.navigation.compose.composable
 import androidx.navigation.compose.currentBackStackEntryAsState
-import me.rhunk.snapenhance.manager.sections.NotImplemented
+import me.rhunk.snapenhance.manager.data.ManagerContext
 
 
-enum class MainSections(
-    val route: String,
-    val title: String,
-    val icon: ImageVector,
-    val content: @Composable () -> Unit
+class Navigation(
+    private val context: ManagerContext
 ) {
-    DOWNLOADS(
-        route = "downloads",
-        title = "Downloads",
-        icon = Icons.Filled.Download,
-        content = { NotImplemented() }
-    ),
-    FEATURES(
-        route = "features",
-        title = "Features",
-        icon = Icons.Filled.Stars,
-        content = { NotImplemented() }
-    ),
-    HOME(
-        route = "home",
-        title = "Home",
-        icon = Icons.Filled.Home,
-        content = { NotImplemented() }
-    ),
-    FRIENDS(
-        route = "friends",
-        title = "Friends",
-        icon = Icons.Filled.Group,
-        content = { NotImplemented() }
-    ),
-    DEBUG(
-        route = "debug",
-        title = "Debug",
-        icon = Icons.Filled.BugReport,
-        content = { NotImplemented() }
-    );
-}
+    @Composable
+    fun NavigationHost(
+        navController: NavHostController,
+        innerPadding: PaddingValues
+    ) {
+        val sections = remember { EnumSection.values().toList().map {
+            it to it.section.constructors.first().call()
+        }.onEach { (_, instance) ->
+            instance.manager = context
+            instance.navController = navController
+        } }
+        val homeSection = EnumSection.HOME
 
-@Composable
-fun NavBar(
+        NavHost(navController, startDestination = homeSection.route, Modifier.padding(innerPadding)) {
+            sections.forEach { (section, instance) ->
+                composable(section.route) {
+                    instance.Content()
+                }
+            }
+        }
+    }
+
+    @Composable
+    fun NavBar(
         navController: NavController
-) {
+    ) {
         NavigationBar {
             val navBackStackEntry by navController.currentBackStackEntryAsState()
             val currentDestination = navBackStackEntry?.destination
-        MainSections.values().toList().forEach { section ->
+            EnumSection.values().toList().forEach { section ->
                 fun selected() = currentDestination?.hierarchy?.any { it.route == section.route } == true
 
                 NavigationBarItem(
@@ -110,4 +96,5 @@ fun NavBar(
                 )
             }
         }
+    }
 }

app/src/main/kotlin/me/rhunk/snapenhance/manager/Section.kt

@@ -0,0 +1,61 @@
+package me.rhunk.snapenhance.manager
+
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.BugReport
+import androidx.compose.material.icons.filled.Download
+import androidx.compose.material.icons.filled.Group
+import androidx.compose.material.icons.filled.Home
+import androidx.compose.material.icons.filled.Stars
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.graphics.vector.ImageVector
+import androidx.navigation.NavController
+import me.rhunk.snapenhance.manager.data.ManagerContext
+import me.rhunk.snapenhance.manager.sections.FeaturesSection
+import me.rhunk.snapenhance.manager.sections.HomeSection
+import me.rhunk.snapenhance.manager.sections.NotImplemented
+import kotlin.reflect.KClass
+
+enum class EnumSection(
+    val route: String,
+    val title: String,
+    val icon: ImageVector,
+    val section: KClass<out Section> = NotImplemented::class
+) {
+    DOWNLOADS(
+        route = "downloads",
+        title = "Downloads",
+        icon = Icons.Filled.Download
+    ),
+    FEATURES(
+        route = "features",
+        title = "Features",
+        icon = Icons.Filled.Stars,
+        section = FeaturesSection::class
+    ),
+    HOME(
+        route = "home",
+        title = "Home",
+        icon = Icons.Filled.Home,
+        section = HomeSection::class
+    ),
+    FRIENDS(
+        route = "friends",
+        title = "Friends",
+        icon = Icons.Filled.Group
+    ),
+    DEBUG(
+        route = "debug",
+        title = "Debug",
+        icon = Icons.Filled.BugReport
+    );
+}
+
+
+
+open class Section {
+    lateinit var manager: ManagerContext
+    lateinit var navController: NavController
+
+    @Composable
+    open fun Content() { NotImplemented() }
+}

app/src/main/kotlin/me/rhunk/snapenhance/manager/Theme.kt

@@ -74,8 +74,6 @@ val md_theme_dark_scrim = Color(0xFF000000)
 val seed = Color(0xFF6750A4)
 
 
-
-
 private val LightThemeColors = lightColorScheme(
     primary = md_theme_light_primary,
     onPrimary = md_theme_light_onPrimary,

app/src/main/kotlin/me/rhunk/snapenhance/manager/data/InstallationSummary.kt

@@ -0,0 +1,17 @@
+package me.rhunk.snapenhance.manager.data
+
+
+data class SnapchatAppInfo(
+    val version: String,
+    val versionCode: Long
+)
+
+data class ModMappingsInfo(
+    val generatedSnapchatVersion: Long,
+    val isOutdated: Boolean
+)
+
+data class InstallationSummary(
+    val snapchatInfo: SnapchatAppInfo?,
+    val mappingsInfo: ModMappingsInfo?
+)

app/src/main/kotlin/me/rhunk/snapenhance/manager/data/ManagerContext.kt

@@ -0,0 +1,35 @@
+package me.rhunk.snapenhance.manager.data
+
+import android.content.Context
+import me.rhunk.snapenhance.bridge.wrapper.ConfigWrapper
+import me.rhunk.snapenhance.bridge.wrapper.MappingsWrapper
+import me.rhunk.snapenhance.bridge.wrapper.TranslationWrapper
+
+class ManagerContext(
+    private val context: Context
+) {
+    private val config = ConfigWrapper()
+    private val translation = TranslationWrapper()
+    private val mappings = MappingsWrapper(context)
+
+    init {
+        config.loadFromContext(context)
+        translation.loadFromContext(context)
+        mappings.apply { loadFromContext(context) }.init()
+    }
+
+    fun getInstallationSummary() = InstallationSummary(
+        snapchatInfo = mappings.getSnapchatPackageInfo()?.let {
+            SnapchatAppInfo(
+                version = it.versionName,
+                versionCode = it.longVersionCode
+            )
+        },
+        mappingsInfo = if (mappings.isMappingsLoaded()) {
+            ModMappingsInfo(
+                generatedSnapchatVersion = mappings.getGeneratedBuildNumber(),
+                isOutdated = mappings.isMappingsOutdated()
+            )
+        } else null
+    )
+}

app/src/main/kotlin/me/rhunk/snapenhance/manager/sections/DebugSection.kt

@@ -0,0 +1,4 @@
+package me.rhunk.snapenhance.manager.sections
+
+class DebugSection {
+}

app/src/main/kotlin/me/rhunk/snapenhance/manager/sections/FeaturesSection.kt

@@ -0,0 +1,52 @@
+package me.rhunk.snapenhance.manager.sections
+
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.material3.OutlinedCard
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import me.rhunk.snapenhance.manager.Section
+
+class FeaturesSection : Section() {
+    @Composable
+    @Preview
+    override fun Content() {
+        Column {
+            Text(
+                text = "Features",
+                modifier = Modifier.padding(all = 15.dp),
+                fontSize = 20.sp
+            )
+            LazyColumn(
+                modifier = Modifier
+                    .fillMaxSize(),
+                verticalArrangement = Arrangement.Center
+            ) {
+                items(100) { index ->
+                    OutlinedCard(
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .padding(all = 10.dp)
+                            .height(70.dp)
+                    ) {
+                        Column(
+                            modifier = Modifier.fillMaxSize(),
+                            verticalArrangement = Arrangement.Center
+                        ) {
+                            Text(text = "Feature $index", modifier = Modifier.padding(all = 15.dp))
+                        }
+                    }
+                }
+            }
+        }
+    }
+}

app/src/main/kotlin/me/rhunk/snapenhance/manager/sections/HomeSection.kt

@@ -0,0 +1,108 @@
+package me.rhunk.snapenhance.manager.sections
+
+import androidx.compose.foundation.ScrollState
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.ExperimentalLayoutApi
+import androidx.compose.foundation.layout.FlowRow
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Map
+import androidx.compose.material.icons.filled.Refresh
+import androidx.compose.material3.Button
+import androidx.compose.material3.Icon
+import androidx.compose.material3.OutlinedCard
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import me.rhunk.snapenhance.manager.Section
+import me.rhunk.snapenhance.manager.data.InstallationSummary
+
+class HomeSection : Section() {
+    companion object {
+        val cardMargin = 10.dp
+    }
+
+    @OptIn(ExperimentalLayoutApi::class)
+    @Composable
+    private fun SummaryCards(installationSummary: InstallationSummary) {
+        //installation summary
+        OutlinedCard(
+            modifier = Modifier
+                .padding(all = cardMargin)
+                .fillMaxWidth()
+        ) {
+            Column(modifier = Modifier.padding(all = 16.dp)) {
+                if (installationSummary.snapchatInfo != null) {
+                    Text("Snapchat version: ${installationSummary.snapchatInfo.version}")
+                    Text("Snapchat version code: ${installationSummary.snapchatInfo.versionCode}")
+                } else {
+                    Text("Snapchat not installed/detected")
+                }
+            }
+        }
+
+        OutlinedCard(
+            modifier = Modifier
+                .padding(all = cardMargin)
+                .fillMaxWidth()
+        ) {
+            FlowRow(
+                modifier = Modifier.padding(all = 16.dp),
+                horizontalArrangement = Arrangement.SpaceBetween
+            ) {
+                Icon(
+                    Icons.Filled.Map,
+                    contentDescription = "Mappings",
+                    modifier = Modifier
+                        .padding(end = 10.dp)
+                        .align(Alignment.CenterVertically)
+                )
+
+                Text(text = if (installationSummary.mappingsInfo == null || installationSummary.mappingsInfo.isOutdated) {
+                    "Mappings ${if (installationSummary.mappingsInfo == null) "not generated" else "outdated"}"
+                } else {
+                    "Mappings version ${installationSummary.mappingsInfo.generatedSnapchatVersion}"
+                }, modifier = Modifier.weight(1f)
+                    .align(Alignment.CenterVertically)
+                )
+
+                //inline button
+                Button(onClick = {}, modifier = Modifier.height(40.dp)) {
+                    Icon(Icons.Filled.Refresh, contentDescription = "Refresh")
+                }
+            }
+        }
+    }
+
+    @Composable
+    @Preview
+    override fun Content() {
+        Column(
+            modifier = Modifier
+                .fillMaxSize()
+                .verticalScroll(ScrollState(0))
+        ) {
+            Text(
+                "SnapEnhance",
+                fontSize = 32.sp,
+                modifier = Modifier.padding(32.dp)
+            )
+
+            Text(
+                text = "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec euismod, nisl eget ultricies ultrices, nunc nisl aliquam nunc, quis aliquam nisl nunc eu nisl. Donec euismod, nisl eget ultricies ultrices, nunc nisl aliquam nunc, quis aliquam nisl nunc eu nisl.",
+                modifier = Modifier.padding(16.dp)
+            )
+
+            SummaryCards(manager.getInstallationSummary())
+        }
+    }
+}

app/src/main/kotlin/me/rhunk/snapenhance/manager/sections/NotImplemented.kt

@@ -1,18 +1,20 @@
 package me.rhunk.snapenhance.manager.sections
 
+import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.tooling.preview.Preview
+import me.rhunk.snapenhance.manager.Section
 
-@Composable
-fun NotImplemented() {
-    Column(
-        modifier = Modifier.fillMaxSize(),
-        horizontalAlignment = Alignment.CenterHorizontally,
-    ) {
-        Text(text = "Not Implemented")
+class NotImplemented : Section() {
+    @Composable
+    override fun Content() {
+        Column {
+            Text(text = "Not implemented yet!")
+        }
     }
 }

app/src/main/res/drawable/launcher_icon_monochrome.xml

@@ -0,0 +1,26 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:width="48dp"
+    android:height="48dp"
+    android:viewportWidth="1000"
+    android:viewportHeight="1000">
+
+  <group
+      android:scaleX="0.65"
+      android:scaleY="0.65"
+      android:translateX="175"
+      android:translateY="175">
+
+    <path
+        android:fillColor="#ffffffff"
+        android:pathData="m397.9,491.5h-55.1c-10.1,0 -18.4,8.2 -18.4,18.4h0c0,10.1 8.2,18.4 18.4,18.4h55.1c15.3,0 27.8,13.7 27.8,30.6s-12.5,30.6 -27.8,30.6h-55.1c-10.1,0 -18.4,8.2 -18.4,18.4h0c0,10.1 8.2,18.4 18.4,18.4h55.1c33.8,0 61.2,-30.1 61.2,-67.3s-27.4,-67.3 -61.2,-67.3Z"/>
+    <path
+        android:fillColor="#ffffffff"
+        android:pathData="m814.2,491.5h-62.6v-49.7h-0.1c0,-2 0.1,-4.1 0.1,-6.1 0,-152.1 -123.3,-275.5 -275.5,-275.5s-275.5,123.3 -275.5,275.5c0,2 0,4.1 0.1,6.1h-0.1v302.1c0,29.6 13.5,57.6 36.7,76l11.9,9.4c18.3,13.9 47,13.8 65.2,0l18.5,-14c7.1,-5.4 21,-5.4 28.1,0l18.5,14c18.3,13.9 46.9,13.9 65.2,0l18.5,-14c3.3,-2.5 8.2,-3.8 13.1,-4 4.9,0.2 9.7,1.5 13,4l18.5,14c18.3,13.8 46.8,13.8 65.1,0l18.5,-14c7.1,-5.4 20.9,-5.4 28,0l18.5,14c18.2,13.8 46.8,13.8 65.1,0l11.9,-9.4c23.2,-18.4 36.7,-46.4 36.7,-75.9v-117.8h62.6c33.8,0 61.2,-30.1 61.2,-67.3s-27.4,-67.3 -61.2,-67.3ZM714.8,441.9v310.2c0,16.4 -7.7,31.9 -20.7,41.8l-9.6,7.3c-7.1,5.4 -20.9,5.4 -28,0l-18.5,-14c-18.2,-13.8 -46.8,-13.8 -65.1,0l-18.5,14c-7.1,5.4 -20.9,5.4 -28,0l-18.5,-14c-8.8,-6.7 -20.1,-10.1 -31.4,-10.3v-0c-0.1,0 -0.1,0 -0.2,0 -0,0 -0.1,0 -0.1,0h0c-11.4,0.2 -22.6,3.7 -31.5,10.4l-18.5,14c-7.1,5.4 -21,5.4 -28.1,0l-18.5,-14c-18.3,-13.8 -46.9,-13.8 -65.2,0l-18.5,14c-7.1,5.4 -21,5.4 -28,0l-9.7,-7.4c-13.1,-9.9 -20.8,-25.4 -20.8,-41.8v-310.1h0.1c-0.1,-2 -0.1,-4.1 -0.1,-6.1 0,-131.9 106.9,-238.7 238.7,-238.7s238.7,106.9 238.7,238.7c0,2 -0,4.1 -0.1,6.1h0.1ZM814.2,589.5h-62.6v-61.2h62.6c15.3,0 27.8,13.7 27.8,30.6s-12.5,30.6 -27.8,30.6Z"
+        tools:ignore="VectorPath" />
+    <path
+        android:fillColor="#ffffffff"
+        android:pathData="m711.1,336.1c-6.6,-1.6 -10.6,-1.7 -17.4,-2.8 -33.1,-5.4 -65.4,-0.8 -97.3,8.2 -7,2 -13.9,3.4 -20.9,3.5 -7,-0.2 -13.9,-1.5 -20.9,-3.5 -31.9,-9 -64.2,-13.6 -97.3,-8.2 -6.8,1.1 -10.8,1.1 -17.4,2.8 -6,1.5 -7.5,11.2 -5.5,29.1 0.9,8.2 3.3,16.1 4.9,24.2 1.6,8.1 3.6,16.1 7.9,23.3 4.1,6.8 10.1,11.6 17.5,13.9 16.9,5.4 34.1,6.2 51.3,1.4 14.5,-4.1 26.1,-12.6 33.4,-25.9 5.4,-9.9 9.7,-20.4 14.5,-30.7 0.7,-1.6 1.3,-3.2 2.1,-4.8 2.2,-4.4 5,-6.3 9.6,-6.3 4.5,-0 7.3,1.8 9.6,6.3 0.8,1.6 1.4,3.2 2.1,4.8 4.8,10.3 9.1,20.8 14.5,30.7 7.2,13.4 18.9,21.9 33.4,25.9 17.1,4.8 34.4,4 51.3,-1.4 7.4,-2.3 13.4,-7.1 17.5,-13.9 4.3,-7.2 6.3,-15.1 7.9,-23.3 1.5,-8.1 4,-16 4.9,-24.2 2,-17.9 0.5,-27.6 -5.5,-29.1Z"/>
+
+  </group>
+</vector>

app/src/main/res/mipmap-anydpi-v26/launcher_icon.xml

@@ -2,4 +2,5 @@
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
     <background android:drawable="@color/launcher_icon_background"/>
     <foreground android:drawable="@mipmap/launcher_icon_foreground"/>
+    <monochrome android:drawable="@drawable/launcher_icon_monochrome"/>
 </adaptive-icon>

core/src/main/kotlin/me/rhunk/snapenhance/bridge/BridgeClient.kt

@@ -91,7 +91,6 @@ class BridgeClient(
 
     fun deleteFile(fileType: BridgeFileType) = service.deleteFile(fileType.value)
 
-
     fun isFileExists(fileType: BridgeFileType) = service.isFileExists(fileType.value)
 
     fun getLoggedMessageIds(conversationId: String, limit: Int): LongArray = service.getLoggedMessageIds(conversationId, limit)

core/src/main/kotlin/me/rhunk/snapenhance/bridge/FileLoaderWrapper.kt

@@ -0,0 +1,35 @@
+package me.rhunk.snapenhance.bridge
+
+import android.content.Context
+import me.rhunk.snapenhance.bridge.types.BridgeFileType
+
+open class FileLoaderWrapper(
+    private val fileType: BridgeFileType,
+    private val defaultContent: ByteArray
+) {
+    lateinit var isFileExists: () -> Boolean
+    lateinit var write: (ByteArray) -> Unit
+    lateinit var read: () -> ByteArray
+    lateinit var delete: () -> Unit
+
+    fun loadFromContext(context: Context) {
+        val file = fileType.resolve(context)
+        isFileExists = { file.exists() }
+        read = {
+            if (!file.exists()) {
+                file.createNewFile()
+                file.writeBytes("{}".toByteArray(Charsets.UTF_8))
+            }
+            file.readBytes()
+        }
+        write = { file.writeBytes(it) }
+        delete = { file.delete() }
+    }
+
+    fun loadFromBridge(bridgeClient: BridgeClient) {
+        isFileExists = { bridgeClient.isFileExists(fileType) }
+        read = { bridgeClient.createAndReadFile(fileType, defaultContent) }
+        write = { bridgeClient.writeFile(fileType, it) }
+        delete = { bridgeClient.deleteFile(fileType) }
+    }
+}

core/src/main/kotlin/me/rhunk/snapenhance/bridge/wrapper/ConfigWrapper.kt

@@ -5,6 +5,7 @@ import com.google.gson.GsonBuilder
 import com.google.gson.JsonObject
 import me.rhunk.snapenhance.Logger
 import me.rhunk.snapenhance.bridge.BridgeClient
+import me.rhunk.snapenhance.bridge.FileLoaderWrapper
 import me.rhunk.snapenhance.bridge.types.BridgeFileType
 import me.rhunk.snapenhance.config.ConfigAccessor
 import me.rhunk.snapenhance.config.ConfigProperty
@@ -14,16 +15,14 @@ class ConfigWrapper: ConfigAccessor() {
         private val gson = GsonBuilder().setPrettyPrinting().create()
     }
 
-    private lateinit var isFileExistsAction: () -> Boolean
-    private lateinit var writeFileAction: (ByteArray) -> Unit
-    private lateinit var readFileAction: () -> ByteArray
+    private val file = FileLoaderWrapper(BridgeFileType.CONFIG, "{}".toByteArray(Charsets.UTF_8))
 
     fun load() {
         ConfigProperty.sortedByCategory().forEach { key ->
             set(key, key.valueContainer)
         }
 
-        if (!isFileExistsAction()) {
+        if (!file.isFileExists()) {
             writeConfig()
             return
         }
@@ -37,7 +36,7 @@ class ConfigWrapper: ConfigAccessor() {
     }
 
     private fun loadConfig() {
-        val configContent = readFileAction()
+        val configContent = file.read()
 
         val configObject: JsonObject = gson.fromJson(
             configContent.toString(Charsets.UTF_8),
@@ -54,27 +53,17 @@ class ConfigWrapper: ConfigAccessor() {
         entries().forEach { (key, value) ->
             configObject.addProperty(key.name, value.read())
         }
-        writeFileAction(gson.toJson(configObject).toByteArray(Charsets.UTF_8))
+
+        file.write(gson.toJson(configObject).toByteArray(Charsets.UTF_8))
     }
 
     fun loadFromContext(context: Context) {
-        val configFile = BridgeFileType.CONFIG.resolve(context)
-        isFileExistsAction = { configFile.exists() }
-        readFileAction = {
-            if (!configFile.exists()) {
-                configFile.createNewFile()
-                configFile.writeBytes("{}".toByteArray(Charsets.UTF_8))
-            }
-            configFile.readBytes()
-        }
-        writeFileAction = { configFile.writeBytes(it) }
+        file.loadFromContext(context)
         load()
     }
 
     fun loadFromBridge(bridgeClient: BridgeClient) {
-        isFileExistsAction = { bridgeClient.isFileExists(BridgeFileType.CONFIG) }
-        readFileAction = { bridgeClient.createAndReadFile(BridgeFileType.CONFIG, "{}".toByteArray(Charsets.UTF_8)) }
-        writeFileAction = { bridgeClient.writeFile(BridgeFileType.CONFIG, it) }
+        file.loadFromBridge(bridgeClient)
         load()
     }
 }

core/src/main/kotlin/me/rhunk/snapenhance/bridge/wrapper/MappingsWrapper.kt

@@ -0,0 +1,157 @@
+package me.rhunk.snapenhance.bridge.wrapper
+
+import android.content.Context
+import com.google.gson.GsonBuilder
+import com.google.gson.JsonElement
+import com.google.gson.JsonParser
+import me.rhunk.snapenhance.Constants
+import me.rhunk.snapenhance.Logger
+import me.rhunk.snapenhance.bridge.FileLoaderWrapper
+import me.rhunk.snapenhance.bridge.types.BridgeFileType
+import me.rhunk.snapmapper.Mapper
+import me.rhunk.snapmapper.impl.BCryptClassMapper
+import me.rhunk.snapmapper.impl.CallbackMapper
+import me.rhunk.snapmapper.impl.DefaultMediaItemMapper
+import me.rhunk.snapmapper.impl.EnumMapper
+import me.rhunk.snapmapper.impl.FriendsFeedEventDispatcherMapper
+import me.rhunk.snapmapper.impl.MediaQualityLevelProviderMapper
+import me.rhunk.snapmapper.impl.OperaPageViewControllerMapper
+import me.rhunk.snapmapper.impl.PlatformAnalyticsCreatorMapper
+import me.rhunk.snapmapper.impl.PlusSubscriptionMapper
+import me.rhunk.snapmapper.impl.ScCameraSettingsMapper
+import me.rhunk.snapmapper.impl.StoryBoostStateMapper
+import java.util.concurrent.ConcurrentHashMap
+import kotlin.system.measureTimeMillis
+
+class MappingsWrapper(
+    private val context: Context,
+) : FileLoaderWrapper(BridgeFileType.MAPPINGS, "{}".toByteArray(Charsets.UTF_8)) {
+    companion object {
+        private val gson = GsonBuilder().setPrettyPrinting().create()
+        private val mappers = arrayOf(
+            BCryptClassMapper::class,
+            CallbackMapper::class,
+            DefaultMediaItemMapper::class,
+            MediaQualityLevelProviderMapper::class,
+            EnumMapper::class,
+            OperaPageViewControllerMapper::class,
+            PlatformAnalyticsCreatorMapper::class,
+            PlusSubscriptionMapper::class,
+            ScCameraSettingsMapper::class,
+            StoryBoostStateMapper::class,
+            FriendsFeedEventDispatcherMapper::class
+        )
+    }
+
+    private val mappings = ConcurrentHashMap<String, Any>()
+    private var snapBuildNumber: Long = 0
+
+    @Suppress("deprecation")
+    fun init() {
+        snapBuildNumber = getSnapchatVersionCode()
+
+        if (isFileExists()) {
+            runCatching {
+                loadCached()
+            }.onFailure {
+                delete()
+            }
+        }
+    }
+
+    fun getSnapchatPackageInfo() = runCatching {
+        context.packageManager.getPackageInfo(
+            Constants.SNAPCHAT_PACKAGE_NAME,
+            0
+        )
+    }.getOrNull()
+
+    fun getSnapchatVersionCode() = getSnapchatPackageInfo()?.longVersionCode ?: -1
+    fun getApplicationSourceDir() = getSnapchatPackageInfo()?.applicationInfo?.sourceDir
+    fun getGeneratedBuildNumber() = snapBuildNumber
+
+    fun isMappingsOutdated(): Boolean {
+        return snapBuildNumber != getSnapchatVersionCode() || isMappingsLoaded().not()
+    }
+
+    fun isMappingsLoaded(): Boolean {
+        return mappings.isNotEmpty()
+    }
+
+    private fun loadCached() {
+        if (!isFileExists()) {
+            throw Exception("Mappings file does not exist")
+        }
+        val mappingsObject = JsonParser.parseString(read().toString(Charsets.UTF_8)).asJsonObject.also {
+            snapBuildNumber = it["snap_build_number"].asLong
+        }
+
+        mappingsObject.entrySet().forEach { (key, value): Map.Entry<String, JsonElement> ->
+            if (value.isJsonArray) {
+                mappings[key] = gson.fromJson(value, ArrayList::class.java)
+                return@forEach
+            }
+            if (value.isJsonObject) {
+                mappings[key] = gson.fromJson(value, ConcurrentHashMap::class.java)
+                return@forEach
+            }
+            mappings[key] = value.asString
+        }
+    }
+
+    fun refresh() {
+        val mapper = Mapper(*mappers)
+
+        runCatching {
+            mapper.loadApk(getApplicationSourceDir() ?: throw Exception("Failed to get APK"))
+        }.onFailure {
+            throw Exception("Failed to load APK", it)
+        }
+
+        measureTimeMillis {
+            val result = mapper.start().apply {
+                addProperty("snap_build_number", snapBuildNumber)
+            }
+            write(result.toString().toByteArray())
+        }.also {
+            Logger.xposedLog("Generated mappings in $it ms")
+        }
+    }
+
+    fun getMappedObject(key: String): Any {
+        if (mappings.containsKey(key)) {
+            return mappings[key]!!
+        }
+        throw Exception("No mapping found for $key")
+    }
+
+    fun getMappedObjectNullable(key: String): Any? {
+        return mappings[key]
+    }
+
+    fun getMappedClass(className: String): Class<*> {
+        return context.classLoader.loadClass(getMappedObject(className) as String)
+    }
+
+    fun getMappedClass(key: String, subKey: String): Class<*> {
+        return context.classLoader.loadClass(getMappedValue(key, subKey))
+    }
+
+    fun getMappedValue(key: String): String {
+        return getMappedObject(key) as String
+    }
+
+    @Suppress("UNCHECKED_CAST")
+    fun <T : Any> getMappedList(key: String): List<T> {
+        return listOf(getMappedObject(key) as List<T>).flatten()
+    }
+
+    fun getMappedValue(key: String, subKey: String): String {
+        return getMappedMap(key)[subKey] as String
+    }
+
+    @Suppress("UNCHECKED_CAST")
+    fun getMappedMap(key: String): Map<String, *> {
+        return getMappedObject(key) as Map<String, *>
+    }
+}