Finaly fix the book loading issue. (I Hope)

app/build.gradle

@@ -43,6 +43,7 @@ android {
 
     buildTypes {
         debug {
+            applicationIdSuffix ".debug"
             signingConfig signingConfigs.pixelized
             minifyEnabled false
             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'

app/src/main/java/com/pixelized/biblib/database/dao/BookDao.kt

@@ -7,6 +7,10 @@ import com.pixelized.biblib.database.relation.BookRelation
 
 @Dao
 interface BookDao {
+
+    @Query("SELECT COUNT(${BookDbo.ID}) FROM ${BookDbo.TABLE}")
+    fun count(): Int
+
     @Transaction
     @Query("SELECT * FROM ${BookDbo.TABLE}")
     fun getAll(): List<BookRelation>

app/src/main/java/com/pixelized/biblib/repository/book/BookRepository.kt

@@ -17,6 +17,9 @@ class BookRepository @Inject constructor(
     override fun getAll(): List<Book> =
         database.bookDao().getAll().map { it.toBook() }
 
+    override fun getBookCount(): Int =
+        database.bookDao().count()
+
     override fun getNewsSource(): DataSource.Factory<Int, Book> =
         database.bookDao().getNews().map { it.toBook() }
 

app/src/main/java/com/pixelized/biblib/repository/book/BookUtils.kt

@@ -1,23 +1,41 @@
 package com.pixelized.biblib.repository.book
 
+import android.util.Log
 import com.pixelized.biblib.network.client.IBibLibClient
+import com.pixelized.biblib.network.data.response.BookListResponse
 import com.pixelized.biblib.network.factory.BookFactory
 import com.pixelized.biblib.repository.apiCache.IAPICacheRepository
+import com.pixelized.biblib.utils.exception.BookFetchException
+import com.pixelized.biblib.utils.exception.NewBookFetchException
 
 suspend fun updateBooks(
     client: IBibLibClient,
     cache: IAPICacheRepository,
     repository: IBookRepository,
-): Boolean {
+) {
-    return loadNewBooks(client, cache) || loadAllBooks(client, cache, repository)
+    if (loadNewBooks(client, cache) || repository.getBookCount() <= 0) {
+        loadAllBooks(client, cache, repository)
+    }
 }
 
+/**
+ * This method will fetch all new book from [client] and save them into the [cache]
+ * @param client the client used to fetch the data.
+ * @param cache the cache used to save the data.
+ * @return return true if the data have been loaded and book need to be updated.
+ */
 suspend fun loadNewBooks(
     client: IBibLibClient,
     cache: IAPICacheRepository,
 ): Boolean {
     val cached = cache.new
     val updated = client.service.new()
+
+    if (updated.isError) {
+        Log.e("loadNewBooks", updated.message ?: "")
+        throw NewBookFetchException(updated.message)
+    }
+
     return if (cached != updated) {
         cache.new = updated
         true
@@ -26,12 +44,26 @@ suspend fun loadNewBooks(
     }
 }
 
+
+
+/**
+ * This method will fetch all book from [client] and save them into the [repository]
+ * @param client the client used to fetch the data.
+ * @param cache the cache used to read the new book data.
+ * @param repository the repository to save the book data.
+ * @return this method will return true the books have been correctly fetch, otherwise false.
+ */
 suspend fun loadAllBooks(
     client: IBibLibClient,
     cache: IAPICacheRepository,
     repository: IBookRepository,
 ): Boolean {
-    client.service.list().let { response ->
+    val response: BookListResponse = client.service.list().also { response ->
+        if (response.isError) {
+            Log.e("loadAllBooks", response.message ?: "")
+            throw BookFetchException(response.message)
+        }
+
         val newIds = cache.new?.data?.map { it.book_id } ?: listOf()
         val factory = BookFactory()
         val books = response.data?.mapNotNull { dto ->
@@ -45,5 +77,5 @@ suspend fun loadAllBooks(
         }
         books?.let { data -> repository.update(data) }
     }
-    return true
+    return response.isError.not()
 }

app/src/main/java/com/pixelized/biblib/repository/book/IBookRepository.kt

@@ -7,6 +7,8 @@ interface IBookRepository {
 
     fun getAll(): List<Book>
 
+    fun getBookCount(): Int
+
     fun getNewsSource(): DataSource.Factory<Int, Book>
 
     fun getBooksSource(): DataSource.Factory<Int, Book>

app/src/main/java/com/pixelized/biblib/ui/screen/authentication/viewModel/AuthenticationViewModel.kt

@@ -14,15 +14,13 @@ import com.google.android.gms.auth.api.signin.GoogleSignIn
 import com.google.android.gms.common.api.ApiException
 import com.pixelized.biblib.network.client.IBibLibClient
 import com.pixelized.biblib.network.data.query.AuthLoginQuery
-import com.pixelized.biblib.network.data.response.BookListResponse
-import com.pixelized.biblib.network.factory.BookFactory
 import com.pixelized.biblib.repository.apiCache.IAPICacheRepository
 import com.pixelized.biblib.repository.book.IBookRepository
 import com.pixelized.biblib.repository.book.updateBooks
-import com.pixelized.biblib.repository.credential.CredentialRepository_Factory
 import com.pixelized.biblib.repository.credential.ICredentialRepository
 import com.pixelized.biblib.repository.googleSignIn.IGoogleSingInRepository
 import com.pixelized.biblib.ui.composable.StateUio
+import com.pixelized.biblib.utils.exception.BookFetchException
 import com.pixelized.biblib.utils.exception.MissingGoogleTokenException
 import com.pixelized.biblib.utils.exception.MissingTokenException
 import dagger.hilt.android.lifecycle.HiltViewModel
@@ -58,8 +56,7 @@ class AuthenticationViewModel @Inject constructor(
                 val idToken = response.token ?: throw MissingTokenException()
                 client.token = idToken
                 credentialRepository.bearer = response.token
-                // update book if needed
+                updateBooks() // update book if needed
-                updateBooks()
                 _authenticationProcess.value = StateUio.Success(Unit)
             } catch (exception: Exception) {
                 Log.e("AuthenticationViewModel", exception.message, exception)
@@ -86,8 +83,7 @@ class AuthenticationViewModel @Inject constructor(
                     val response = client.service.loginWithGoogle(token = googleToken)
                     val token = response.token ?: throw MissingTokenException()
                     client.token = token
-                    // update book if needed
+                    updateBooks() // update book if needed
-                    updateBooks()
                     _authenticationProcess.value = StateUio.Success(Unit)
                 } catch (exception: Exception) {
                     Log.e("AuthenticationViewModel", exception.message, exception)
@@ -106,7 +102,7 @@ class AuthenticationViewModel @Inject constructor(
     //////////////////////////////////////
     // region: Books update
 
-    private suspend fun updateBooks(): Boolean = updateBooks(
+    private suspend fun updateBooks() = updateBooks(
         client = client,
         cache = apiCache,
         repository = bookRepository,

app/src/main/java/com/pixelized/biblib/ui/screen/launch/LauncherViewModel.kt

@@ -7,7 +7,6 @@ import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import com.pixelized.biblib.network.client.IBibLibClient
 import com.pixelized.biblib.network.data.query.AuthLoginQuery
-import com.pixelized.biblib.network.factory.BookFactory
 import com.pixelized.biblib.repository.apiCache.IAPICacheRepository
 import com.pixelized.biblib.repository.book.IBookRepository
 import com.pixelized.biblib.repository.book.updateBooks
@@ -39,10 +38,15 @@ class LauncherViewModel @Inject constructor(
         viewModelScope.launch(Dispatchers.IO) {
             // Try to Authenticate
             if (autoLoginWithGoogle() || autologinWithCredential()) {
+                startDestination = try {
                     // Update book
                     updateBooks()
                     // Change the start destination
-                startDestination = Screen.Home
+                    Screen.Home
+                } catch (exception: Exception) {
+                    // Force the authentication process.
+                    Screen.Authentication
+                }
             }
             delay(1000)
             // Update loading state.
@@ -100,7 +104,7 @@ class LauncherViewModel @Inject constructor(
     //////////////////////////////////////
     // region: Books update
 
-    private suspend fun updateBooks(): Boolean = updateBooks(
+    private suspend fun updateBooks() = updateBooks(
         client = client,
         cache = apiCache,
         repository = bookRepository,

app/src/main/java/com/pixelized/biblib/utils/exception/BookFetchException.kt

@@ -0,0 +1,3 @@
+package com.pixelized.biblib.utils.exception
+
+class BookFetchException(message: String?): RuntimeException("New Book fetch failed.\n$message")

app/src/main/java/com/pixelized/biblib/utils/exception/NewBookFetchException.kt

@@ -0,0 +1,3 @@
+package com.pixelized.biblib.utils.exception
+
+class NewBookFetchException(message: String?): RuntimeException("New Book fetch failed.\n$message")