feat: Add import and export option

Author: Fandroid745

.idea/workspace.xml

@@ -7,7 +7,7 @@ import com.opennotes.feature_node.domain.model.Note
 
 @Database(
     entities=[Note::class],
-    version=1
+    version=2
 )
  abstract class NoteDatabase :RoomDatabase(){
      abstract val noteDao: NoteDao

app/src/main/java/com/opennotes/feature_node/data/data_source/NoteDatabase.kt

@@ -16,7 +16,6 @@ interface FileHandler{
     suspend fun saveToFile(filename:String,content:String):Uri?
 
 
-
 }
 
 
@@ -30,9 +29,18 @@ class AndroidFileHandler(private val application: Application):FileHandler{
 
     override suspend fun  saveToFile(filename:String,content:String):Uri?=withContext(Dispatchers.IO)
     {
-        val notesDir= File(application.getExternalFilesDir(Environment.DIRECTORY_DOCUMENTS),"notes_backup")
-        if(!notesDir.exists()) notesDir.mkdirs()
+        val notesDir = application.getExternalFilesDir(null)
+
+
+        if(notesDir==null){
+            return@withContext null
+        }
+
+
 
+        if(!notesDir.exists() && !notesDir.mkdirs()){
+            return@withContext null
+        }
 
         val file=File(notesDir,filename)
         file.writeText(content)

app/src/main/java/com/opennotes/feature_node/data/repository/FileHandler.kt

@@ -1,6 +1,7 @@
 package com.opennotes.feature_node.data.repository
 
 import com.google.gson.Gson
+import com.google.gson.GsonBuilder
 
 // In your data/repository directory
 
@@ -13,7 +14,7 @@ interface JsonHandler {
 }
 
 class GsonJsonHandler : JsonHandler {
-    private val gson = Gson()
+    private val gson = GsonBuilder().excludeFieldsWithoutExposeAnnotation().create()
 
     override fun <T> toJson(data: T): String {
         return gson.toJson(data)

app/src/main/java/com/opennotes/feature_node/data/repository/JsonHandler.kt

@@ -11,7 +11,7 @@ private val dao: NoteDao
 
 
 {
-    override fun getNotes(): Flow<List<Note>> {
+    override fun getAllNotes(): Flow<List<Note>> {
         return dao.getNotes()
     }
 

app/src/main/java/com/opennotes/feature_node/data/repository/NoteRepositoryImpl.kt

@@ -2,6 +2,7 @@ package com.opennotes.feature_node.domain.model
 
 import androidx.room.Entity
 import androidx.room.PrimaryKey
+import com.google.gson.annotations.Expose
 import com.opennotes.ui.theme.BabyBlue
 import com.opennotes.ui.theme.LightGreen
 
@@ -11,10 +12,10 @@ import com.opennotes.ui.theme.Violet
 
 @Entity
 data class Note(
-    val title:String,
-    val content:String,
-    val timestamp: String,
-    val color:Int,
+    @Expose val title:String,
+    @Expose val content:String,
+   @Expose val timestamp: Long,
+    @Expose val color:Int,
     @PrimaryKey val id:Int?=null
 ){
     companion object{

app/src/main/java/com/opennotes/feature_node/domain/model/Note.kt

@@ -5,7 +5,7 @@ import com.opennotes.feature_node.domain.model.Note
 import kotlinx.coroutines.flow.Flow
 
 interface NoteRepository {
-    fun getNotes():Flow<List<Note>>
+    fun getAllNotes():Flow<List<Note>>
     suspend fun getNodeById(id:Int): Note?
     suspend fun insertNote(note: Note)
     suspend fun deleteNote(note: Note)

app/src/main/java/com/opennotes/feature_node/domain/repository/NoteRepository.kt

@@ -1,11 +1,14 @@
 package com.opennotes.feature_node.domain.use_case
 
+import android.util.Log
 import com.opennotes.feature_node.data.repository.FileHandler
 import com.opennotes.feature_node.data.repository.GsonJsonHandler
 import com.opennotes.feature_node.data.repository.JsonHandler
 
 import com.opennotes.feature_node.domain.repository.NoteRepository
 import com.opennotes.feature_node.domain.util.ExportResult
+import kotlinx.coroutines.flow.filter
+import kotlinx.coroutines.flow.first
 
 class ExportUseCases(
     private val repository: NoteRepository,
@@ -14,13 +17,12 @@ class ExportUseCases(
     ) {
     suspend operator fun invoke(): ExportResult {
         return try {
+            val allNotes = repository.getAllNotes()
+                .filter{it.isNotEmpty()}
+                .first()
 
 
 
-
-            val allNotes = repository.getNotes()
-
-
             val notesJson = jsonHandler.toJson(allNotes)
 
 
@@ -31,7 +33,7 @@ class ExportUseCases(
                 return ExportResult.Error("Could not save the file to a URI")
             }
 
-            ExportResult.Success
+            ExportResult.Success(fileUri)
         } catch (e: Exception) {
             ExportResult.Error("Failed to export notes: ${e.message}")
         }

app/src/main/java/com/opennotes/feature_node/domain/use_case/ExportUseCases.kt

@@ -13,7 +13,7 @@ class GetNotes(
     operator fun invoke(
         noteOrder: NoteOrder = NoteOrder.Date(OrderType.Descending)
     ): Flow<List<Note>> {
-        return repsoitory.getNotes().map{ notes->
+        return repsoitory.getAllNotes().map{ notes->
            when(noteOrder.orderType){
                is OrderType.Ascending-> {
                    when (noteOrder) {

app/src/main/java/com/opennotes/feature_node/domain/use_case/GetNotes.kt

@@ -5,6 +5,10 @@ import com.opennotes.feature_node.domain.repository.NoteRepository
 import kotlinx.coroutines.flow.Flow
 import javax.inject.Inject
 
+
+
+
+
 class SearchNotesUseCase @Inject constructor(
     private val repository: NoteRepository
 ) {