feat(android): t+1 file log system with firebase storage (#11945)

<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit

- **New Features**
  - Introduced file-based logging that saves daily log files within the app.
  - Old log files are now automatically uploaded to cloud storage for backup.
  - Enhanced logging initialization to include file-based logging alongside crash reporting.
- **Chores**
  - Added Firebase Storage as a new dependency to support log file uploads.
- **Style**
  - Cleaned up unused imports in the authentication plugin.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

packages/frontend/apps/android/App/app/build.gradle

@@ -124,6 +124,7 @@ dependencies {
     implementation platform(libs.firebase.bom)
     implementation libs.firebase.analytics
     implementation libs.firebase.crashlytics
+    implementation libs.firebase.storage
 
     implementation platform(libs.okhttp.bom)
     implementation libs.okhttp

packages/frontend/apps/android/App/app/src/main/java/app/affine/pro/AffineApp.kt

@@ -8,6 +8,7 @@ import app.affine.pro.utils.dataStore
 import app.affine.pro.utils.get
 import app.affine.pro.utils.logger.AffineDebugTree
 import app.affine.pro.utils.logger.CrashlyticsTree
+import app.affine.pro.utils.logger.FileTree
 import com.google.firebase.crashlytics.ktx.crashlytics
 import com.google.firebase.crashlytics.setCustomKeys
 import com.google.firebase.ktx.Firebase
@@ -26,7 +27,12 @@ class AffineApp : Application() {
         super.onCreate()
         _context = applicationContext
         // init logger
-        Timber.plant(if (BuildConfig.DEBUG) AffineDebugTree() else CrashlyticsTree())
+        if (BuildConfig.DEBUG) {
+            Timber.plant(AffineDebugTree())
+        } else {
+            Timber.plant(CrashlyticsTree(), FileTree(applicationContext))
+        }
+        Timber.i("Application started.")
         // init capacitor config
         CapacitorConfig.init(baseContext)
         // init crashlytics
@@ -50,6 +56,7 @@ class AffineApp : Application() {
                         ?: error("Parse user id cookie fail:[ cookie = $userIdCookieStr ]"),
                 )
                 CookieStore.saveCookies(BuildConfig.BASE_URL.toHttpUrl().host, cookies)
+                FileTree.get()?.checkAndUploadOldLogs()
             } catch (e: Exception) {
                 Timber.w(e, "[init] load persistent cookies fail.")
             }

packages/frontend/apps/android/App/app/src/main/java/app/affine/pro/plugin/AuthPlugin.kt

@@ -1,12 +1,9 @@
 package app.affine.pro.plugin
 
 import android.annotation.SuppressLint
-import app.affine.pro.AffineApp
 import app.affine.pro.CapacitorConfig
 import app.affine.pro.service.CookieStore
 import app.affine.pro.service.OkHttp
-import app.affine.pro.utils.clear
-import app.affine.pro.utils.dataStore
 import com.getcapacitor.JSObject
 import com.getcapacitor.Plugin
 import com.getcapacitor.PluginCall

packages/frontend/apps/android/App/app/src/main/java/app/affine/pro/utils/logger/FileTree.kt

@@ -0,0 +1,119 @@
+package app.affine.pro.utils.logger
+
+import android.content.Context
+import android.net.Uri
+import android.util.Log
+import app.affine.pro.BuildConfig
+import app.affine.pro.service.CookieStore
+import com.google.firebase.ktx.Firebase
+import com.google.firebase.storage.ktx.storage
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.MainScope
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.suspendCancellableCoroutine
+import kotlinx.coroutines.withContext
+import timber.log.Timber
+import java.io.File
+import java.io.FileOutputStream
+import java.io.IOException
+import java.text.SimpleDateFormat
+import java.util.Date
+import java.util.Locale
+
+class FileTree(context: Context) : Timber.Tree() {
+
+    private val dateFormat = SimpleDateFormat("yyyy-MM-dd", Locale.getDefault())
+    private val logDirectory: File = File(context.filesDir, "logs")
+    private val currentLogFile: File
+
+    init {
+        if (!logDirectory.exists()) {
+            logDirectory.mkdirs()
+        }
+        val today = dateFormat.format(Date())
+        currentLogFile = File(logDirectory, "$today.log")
+        if (!currentLogFile.exists()) {
+            try {
+                currentLogFile.createNewFile()
+            } catch (e: IOException) {
+                Timber.e(e, "Create log file fail.")
+            }
+        }
+    }
+
+    suspend fun checkAndUploadOldLogs() {
+        val today = dateFormat.format(Date())
+        logDirectory.listFiles()?.forEach { file ->
+            val fileName = file.name
+            if (fileName.endsWith(".log") && !fileName.startsWith(today)) {
+                uploadLogToFirebase(file)
+            }
+        }
+    }
+
+    private suspend fun uploadLogToFirebase(file: File) =
+        suspendCancellableCoroutine { continuation ->
+            val user = CookieStore.getCookie(BuildConfig.BASE_URL, CookieStore.AFFINE_USER_ID)
+                ?: return@suspendCancellableCoroutine
+            val storageRef = Firebase.storage.reference
+            val logFileRef = storageRef.child("android_log/$user/${file.name}")
+
+            val uploadTask = logFileRef.putFile(Uri.fromFile(file))
+            uploadTask.addOnSuccessListener {
+                if (file.delete()) {
+                    if (continuation.isActive) continuation.resume(true) { _, _, _ -> }
+                } else {
+                    if (continuation.isActive) continuation.resume(false) { _, _, _ -> }
+                }
+            }.addOnFailureListener { e ->
+                if (continuation.isActive) continuation.resume(false) {}
+            }
+
+            continuation.invokeOnCancellation {
+                if (uploadTask.isInProgress) {
+                    uploadTask.cancel()
+                }
+            }
+        }
+
+    override fun log(priority: Int, tag: String?, message: String, t: Throwable?) {
+        if (priority < Log.INFO) {
+            return
+        }
+
+        val level = when (priority) {
+            Log.ASSERT -> "[assert]"
+            Log.ERROR -> "[error]"
+            Log.WARN -> "[warn]"
+            else -> "[info]"
+        }
+        val log = StringBuilder(level)
+            .append(tag?.let { "[$tag]" } ?: "")
+            .append(" ")
+            .append(message)
+            .toString()
+
+        MainScope().launch {
+            try {
+                val timestamp =
+                    SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS", Locale.getDefault()).format(Date())
+                val logMessage = "[$timestamp] $log\n"
+                withContext(Dispatchers.IO) {
+                    FileOutputStream(currentLogFile, true).use {
+                        it.write(logMessage.toByteArray())
+                        t?.stackTraceToString()?.let { stacktrace ->
+                            it.write(stacktrace.toByteArray())
+                        }
+                    }
+                }
+            } catch (e: IOException) {
+                Timber.e(e, "Failed to write to log file")
+            }
+        }
+
+    }
+
+    companion object {
+        fun get() = Timber.forest().filterIsInstance<FileTree>().firstOrNull()
+    }
+}