[Domain] Part 4 :(requires data changes) Add Content item ID and item use cases

data/build.gradle.kts

@@ -31,6 +31,7 @@ android {
         sourceCompatibility = JavaVersion.VERSION_17
         targetCompatibility = JavaVersion.VERSION_17
     }
+    compileSdkMinor = 0
 }
 
 kotlin {

domain/src/main/java/com/itlab/domain/model/Note.kt

@@ -27,14 +27,18 @@ data class DataSource(
 
 @Serializable
 sealed class ContentItem {
+    abstract val id: String
+
     @Serializable
     data class Text(
+        override val id: String = UUID.randomUUID().toString(),
         val text: String,
         val format: TextFormat = TextFormat.PLAIN,
     ) : ContentItem()
 
     @Serializable
     data class Image(
+        override val id: String = UUID.randomUUID().toString(),
         val source: DataSource,
         val mimeType: String,
         val width: Int? = null,
@@ -43,6 +47,7 @@ sealed class ContentItem {
 
     @Serializable
     data class File(
+        override val id: String = UUID.randomUUID().toString(),
         val source: DataSource,
         val mimeType: String,
         val name: String,
@@ -51,6 +56,7 @@ sealed class ContentItem {
 
     @Serializable
     data class Link(
+        override val id: String = UUID.randomUUID().toString(),
         val url: String,
         val title: String? = null,
     ) : ContentItem()

domain/src/main/java/com/itlab/domain/aiusecase/SuggestSummaryUseCase.kt → domain/src/main/java/com/itlab/domain/usecase/aiusecase/SuggestSummaryUseCase.kt

@@ -1,4 +1,4 @@
-package com.itlab.domain.aiusecase
+package com.itlab.domain.usecase.aiusecase
 
 import com.itlab.domain.ai.NoteAiService
 import com.itlab.domain.model.ContentItem

domain/src/main/java/com/itlab/domain/aiusecase/SuggestTagsUseCase.kt → domain/src/main/java/com/itlab/domain/usecase/aiusecase/SuggestTagsUseCase.kt

@@ -1,4 +1,4 @@
-package com.itlab.domain.aiusecase
+package com.itlab.domain.usecase.aiusecase
 
 import com.itlab.domain.ai.NoteAiService
 import com.itlab.domain.model.ContentItem

domain/src/main/java/com/itlab/domain/usecase/contentusecase/AddContentItemUseCase.kt

@@ -0,0 +1,30 @@
+package com.itlab.domain.usecase.contentusecase
+
+import com.itlab.domain.model.ContentItem
+import com.itlab.domain.repository.NotesRepository
+import kotlinx.datetime.Clock
+
+class AddContentItemUseCase(
+    private val notesRepository: NotesRepository,
+) {
+    suspend operator fun invoke(
+        noteId: String,
+        item: ContentItem,
+    ) {
+        require(item.id.isNotBlank()) {
+            "ContentItem id must be created before adding to note"
+        }
+
+        val note =
+            notesRepository.getNoteById(noteId)
+                ?: throw IllegalArgumentException("Note not found: $noteId")
+
+        val updated =
+            note.copy(
+                contentItems = note.contentItems + item,
+                updatedAt = Clock.System.now(),
+            )
+
+        notesRepository.updateNote(updated)
+    }
+}

domain/src/main/java/com/itlab/domain/usecase/contentusecase/CreateContentItemUseCase.kt

@@ -0,0 +1,14 @@
+package com.itlab.domain.usecase.contentusecase
+
+import com.itlab.domain.model.ContentItem
+import java.util.UUID
+
+class CreateContentItemUseCase {
+    operator fun invoke(item: ContentItem): ContentItem =
+        when (item) {
+            is ContentItem.Text -> item.copy(id = UUID.randomUUID().toString())
+            is ContentItem.Image -> item.copy(id = UUID.randomUUID().toString())
+            is ContentItem.File -> item.copy(id = UUID.randomUUID().toString())
+            is ContentItem.Link -> item.copy(id = UUID.randomUUID().toString())
+        }
+}

domain/src/main/java/com/itlab/domain/usecase/contentusecase/DeleteContentItemUseCase.kt

@@ -0,0 +1,24 @@
+package com.itlab.domain.usecase.contentusecase
+
+import com.itlab.domain.repository.NotesRepository
+import kotlinx.datetime.Clock
+
+class DeleteContentItemUseCase(
+    private val notesRepository: NotesRepository,
+) {
+    suspend operator fun invoke(
+        noteId: String,
+        itemId: String,
+    ) {
+        val note =
+            notesRepository.getNoteById(noteId)
+                ?: throw IllegalArgumentException("Note not found: $noteId")
+
+        val updated =
+            note.copy(
+                contentItems = note.contentItems.filterNot { it.id == itemId },
+                updatedAt = Clock.System.now(),
+            )
+        notesRepository.updateNote(updated)
+    }
+}

domain/src/main/java/com/itlab/domain/usecase/contentusecase/GetContentItemUseCase.kt

@@ -0,0 +1,19 @@
+package com.itlab.domain.usecase.contentusecase
+
+import com.itlab.domain.model.ContentItem
+import com.itlab.domain.repository.NotesRepository
+
+class GetContentItemUseCase(
+    private val notesRepository: NotesRepository,
+) {
+    suspend operator fun invoke(
+        noteId: String,
+        itemId: String,
+    ): ContentItem? {
+        val note =
+            notesRepository.getNoteById(noteId)
+                ?: throw IllegalArgumentException("Note not found: $noteId")
+
+        return note.contentItems.find { it.id == itemId }
+    }
+}

domain/src/main/java/com/itlab/domain/usecase/CreateFolderUseCase.kt → domain/src/main/java/com/itlab/domain/usecase/folderusecase/CreateFolderUseCase.kt

@@ -1,15 +1,21 @@
-package com.itlab.domain.usecase
+package com.itlab.domain.usecase.folderusecase
 
 import com.itlab.domain.model.NoteFolder
 import com.itlab.domain.repository.NoteFolderRepository
 import kotlinx.datetime.Clock
+import java.util.UUID
 
 class CreateFolderUseCase(
     private val repo: NoteFolderRepository,
 ) {
     suspend operator fun invoke(folder: NoteFolder): String {
-        // discuss
-        val folder = folder.copy(createdAt = Clock.System.now())
+        val now = Clock.System.now()
+        val folder =
+            folder.copy(
+                id = UUID.randomUUID().toString(),
+                createdAt = now,
+                updatedAt = now,
+            )
         return repo.createFolder(folder)
     }
 }

domain/src/main/java/com/itlab/domain/usecase/DeleteFolderUseCase.kt → domain/src/main/java/com/itlab/domain/usecase/folderusecase/DeleteFolderUseCase.kt

@@ -1,4 +1,4 @@
-package com.itlab.domain.usecase
+package com.itlab.domain.usecase.folderusecase
 
 import com.itlab.domain.repository.NoteFolderRepository
 

domain/src/main/java/com/itlab/domain/usecase/GetFolderUseCase.kt → domain/src/main/java/com/itlab/domain/usecase/folderusecase/GetFolderUseCase.kt

@@ -1,4 +1,4 @@
-package com.itlab.domain.usecase
+package com.itlab.domain.usecase.folderusecase
 
 import com.itlab.domain.model.NoteFolder
 import com.itlab.domain.repository.NoteFolderRepository

domain/src/main/java/com/itlab/domain/usecase/ObserveFoldersUseCase.kt → domain/src/main/java/com/itlab/domain/usecase/folderusecase/ObserveFoldersUseCase.kt

@@ -1,4 +1,4 @@
-package com.itlab.domain.usecase
+package com.itlab.domain.usecase.folderusecase
 
 import com.itlab.domain.model.NoteFolder
 import com.itlab.domain.repository.NoteFolderRepository

domain/src/main/java/com/itlab/domain/usecase/UpdateFolderUseCase.kt → domain/src/main/java/com/itlab/domain/usecase/folderusecase/UpdateFolderUseCase.kt

@@ -1,4 +1,4 @@
-package com.itlab.domain.usecase
+package com.itlab.domain.usecase.folderusecase
 
 import com.itlab.domain.model.NoteFolder
 import com.itlab.domain.repository.NoteFolderRepository

domain/src/main/java/com/itlab/domain/usecase/noteusecase/AddTagUseCase.kt

@@ -0,0 +1,25 @@
+package com.itlab.domain.usecase.noteusecase
+
+import com.itlab.domain.repository.NotesRepository
+import kotlinx.datetime.Clock
+
+class AddTagUseCase(
+    private val repo: NotesRepository,
+) {
+    suspend operator fun invoke(
+        noteId: String,
+        tagToAdd: String,
+    ) {
+        val note =
+            repo.getNoteById(noteId)
+                ?: throw IllegalArgumentException("Note not found: $noteId")
+
+        val updated =
+            note.copy(
+                tags = note.tags + tagToAdd,
+                updatedAt = Clock.System.now(),
+            )
+
+        repo.updateNote(updated)
+    }
+}

domain/src/main/java/com/itlab/domain/aiusecase/ApplySummaryUseCase.kt → domain/src/main/java/com/itlab/domain/usecase/noteusecase/ApplySummaryUseCase.kt

@@ -1,6 +1,7 @@
-package com.itlab.domain.aiusecase
+package com.itlab.domain.usecase.noteusecase
 
 import com.itlab.domain.repository.NotesRepository
+import kotlinx.datetime.Clock
 
 class ApplySummaryUseCase(
     private val repo: NotesRepository,
@@ -17,7 +18,7 @@ class ApplySummaryUseCase(
             note.copy(
                 summary = newSummary,
                 updatedAt =
-                    kotlinx.datetime.Clock.System
+                    Clock.System
                         .now(),
             )
 

domain/src/main/java/com/itlab/domain/aiusecase/ApplyTagsUseCase.kt → domain/src/main/java/com/itlab/domain/usecase/noteusecase/ApplyTagsUseCase.kt

@@ -1,6 +1,7 @@
-package com.itlab.domain.aiusecase
+package com.itlab.domain.usecase.noteusecase
 
 import com.itlab.domain.repository.NotesRepository
+import kotlinx.datetime.Clock
 
 class ApplyTagsUseCase(
     private val repo: NotesRepository,
@@ -17,7 +18,7 @@ class ApplyTagsUseCase(
             note.copy(
                 tags = newTags,
                 updatedAt =
-                    kotlinx.datetime.Clock.System
+                    Clock.System
                         .now(),
             )
 

domain/src/main/java/com/itlab/domain/usecase/CreateNoteUseCase.kt → domain/src/main/java/com/itlab/domain/usecase/noteusecase/CreateNoteUseCase.kt

@@ -1,14 +1,22 @@
-package com.itlab.domain.usecase
+package com.itlab.domain.usecase.noteusecase
 
 import com.itlab.domain.model.Note
 import com.itlab.domain.repository.NotesRepository
 import kotlinx.datetime.Clock
+import java.util.UUID
 
 class CreateNoteUseCase(
     private val repo: NotesRepository,
 ) {
     suspend operator fun invoke(note: Note): String {
-        val note = note.copy(createdAt = Clock.System.now())
+        val now = Clock.System.now()
+
+        val note =
+            note.copy(
+                id = UUID.randomUUID().toString(),
+                createdAt = now,
+                updatedAt = now,
+            )
         return repo.createNote(note)
     }
 }

domain/src/main/java/com/itlab/domain/usecase/DeleteNoteUseCase.kt → domain/src/main/java/com/itlab/domain/usecase/noteusecase/DeleteNoteUseCase.kt

@@ -1,4 +1,4 @@
-package com.itlab.domain.usecase
+package com.itlab.domain.usecase.noteusecase
 
 import com.itlab.domain.repository.NotesRepository
 

domain/src/main/java/com/itlab/domain/usecase/noteusecase/DeleteTagUseCase.kt

@@ -0,0 +1,25 @@
+package com.itlab.domain.usecase.noteusecase
+
+import com.itlab.domain.repository.NotesRepository
+import kotlinx.datetime.Clock
+
+class DeleteTagUseCase(
+    private val repo: NotesRepository,
+) {
+    suspend operator fun invoke(
+        noteId: String,
+        tagToDel: String,
+    ) {
+        val note =
+            repo.getNoteById(noteId)
+                ?: throw IllegalArgumentException("Note not found: $noteId")
+
+        val updated =
+            note.copy(
+                tags = note.tags - tagToDel,
+                updatedAt = Clock.System.now(),
+            )
+
+        repo.updateNote(updated)
+    }
+}

domain/src/main/java/com/itlab/domain/usecase/noteusecase/DuplicateNoteUseCase.kt

@@ -0,0 +1,35 @@
+package com.itlab.domain.usecase.noteusecase
+
+import com.itlab.domain.model.ContentItem
+import com.itlab.domain.repository.NotesRepository
+import kotlinx.datetime.Clock
+import java.util.UUID
+
+class DuplicateNoteUseCase(
+    private val repo: NotesRepository,
+) {
+    suspend operator fun invoke(noteId: String): String {
+        val note =
+            repo.getNoteById(noteId)
+                ?: throw IllegalArgumentException("Note not found: $noteId")
+
+        val now = Clock.System.now()
+        val duplicated =
+            note.copy(
+                id = UUID.randomUUID().toString(),
+                title = if (note.title.isBlank()) "Copy" else "${note.title} Copy",
+                createdAt = now,
+                updatedAt = now,
+                contentItems =
+                    note.contentItems.map { item ->
+                        when (item) {
+                            is ContentItem.Text -> item.copy(id = UUID.randomUUID().toString())
+                            is ContentItem.Image -> item.copy(id = UUID.randomUUID().toString())
+                            is ContentItem.File -> item.copy(id = UUID.randomUUID().toString())
+                            is ContentItem.Link -> item.copy(id = UUID.randomUUID().toString())
+                        }
+                    },
+            )
+        return repo.createNote(duplicated)
+    }
+}

domain/src/main/java/com/itlab/domain/usecase/noteusecase/GetAllFavoritesUseCase.kt

@@ -0,0 +1,15 @@
+package com.itlab.domain.usecase.noteusecase
+
+import com.itlab.domain.model.Note
+import com.itlab.domain.repository.NotesRepository
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.map
+
+class GetAllFavoritesUseCase(
+    private val repo: NotesRepository,
+) {
+    operator fun invoke(): Flow<List<Note>> =
+        repo.observeNotes().map { notes ->
+            notes.filter { it.isFavorite }
+        }
+}

domain/src/main/java/com/itlab/domain/usecase/GetNoteUseCase.kt → domain/src/main/java/com/itlab/domain/usecase/noteusecase/GetNoteUseCase.kt

@@ -1,4 +1,4 @@
-package com.itlab.domain.usecase
+package com.itlab.domain.usecase.noteusecase
 
 import com.itlab.domain.model.Note
 import com.itlab.domain.repository.NotesRepository

domain/src/main/java/com/itlab/domain/usecase/MoveNoteToFolderUseCase.kt → domain/src/main/java/com/itlab/domain/usecase/noteusecase/MoveNoteToFolderUseCase.kt

@@ -1,4 +1,4 @@
-package com.itlab.domain.usecase
+package com.itlab.domain.usecase.noteusecase
 
 import com.itlab.domain.repository.NotesRepository
 import kotlinx.datetime.Clock

domain/src/main/java/com/itlab/domain/usecase/ObserveNotesByFolderUseCase.kt → domain/src/main/java/com/itlab/domain/usecase/noteusecase/ObserveNotesByFolderUseCase.kt

@@ -1,4 +1,4 @@
-package com.itlab.domain.usecase
+package com.itlab.domain.usecase.noteusecase
 
 import com.itlab.domain.model.Note
 import com.itlab.domain.repository.NotesRepository

domain/src/main/java/com/itlab/domain/usecase/ObserveNotesUseCase.kt → domain/src/main/java/com/itlab/domain/usecase/noteusecase/ObserveNotesUseCase.kt

@@ -1,4 +1,4 @@
-package com.itlab.domain.usecase
+package com.itlab.domain.usecase.noteusecase
 
 import com.itlab.domain.model.Note
 import com.itlab.domain.repository.NotesRepository