From 2f9431f6e6a2750a0f4e6327c046020f19c910f4 Mon Sep 17 00:00:00 2001
From: Atte149 <atte149@users.noreply.github.com>
Date: Mon, 15 Jun 2026 21:41:04 +0300
Subject: [PATCH] Phase 4b: remote use cases (FetchLibraries, FetchBooks,
 SearchBooks)

---
 .../use_case/remote/FetchBooksUseCase.kt      | 20 +++++++++++++++++
 .../use_case/remote/FetchLibrariesUseCase.kt  | 19 ++++++++++++++++
 .../use_case/remote/SearchBooksUseCase.kt     | 22 +++++++++++++++++++
 3 files changed, 61 insertions(+)
 create mode 100644 app/src/main/java/org/dueattendant149/bookshelf/domain/use_case/remote/FetchBooksUseCase.kt
 create mode 100644 app/src/main/java/org/dueattendant149/bookshelf/domain/use_case/remote/FetchLibrariesUseCase.kt
 create mode 100644 app/src/main/java/org/dueattendant149/bookshelf/domain/use_case/remote/SearchBooksUseCase.kt

diff --git a/app/src/main/java/org/dueattendant149/bookshelf/domain/use_case/remote/FetchBooksUseCase.kt b/app/src/main/java/org/dueattendant149/bookshelf/domain/use_case/remote/FetchBooksUseCase.kt
new file mode 100644
index 00000000..87117a02
--- /dev/null
+++ b/app/src/main/java/org/dueattendant149/bookshelf/domain/use_case/remote/FetchBooksUseCase.kt
@@ -0,0 +1,20 @@
+/*
+ * Book's Story — free and open-source Material You eBook reader.
+ * Copyright (C) 2024-2026 Acclorite
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+package org.dueattendant149.bookshelf.domain.use_case.remote
+
+import org.dueattendant149.bookshelf.domain.model.library.Book
+import org.dueattendant149.bookshelf.domain.repository.RemoteLibraryRepository
+import javax.inject.Inject
+
+class FetchBooksUseCase
+    @Inject
+    constructor(
+        private val repository: RemoteLibraryRepository,
+    ) {
+        suspend operator fun invoke(libraryId: String): Result<List<Book>> =
+            repository.getBooks(libraryId)
+    }
diff --git a/app/src/main/java/org/dueattendant149/bookshelf/domain/use_case/remote/FetchLibrariesUseCase.kt b/app/src/main/java/org/dueattendant149/bookshelf/domain/use_case/remote/FetchLibrariesUseCase.kt
new file mode 100644
index 00000000..bd828cfc
--- /dev/null
+++ b/app/src/main/java/org/dueattendant149/bookshelf/domain/use_case/remote/FetchLibrariesUseCase.kt
@@ -0,0 +1,19 @@
+/*
+ * Book's Story — free and open-source Material You eBook reader.
+ * Copyright (C) 2024-2026 Acclorite
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+package org.dueattendant149.bookshelf.domain.use_case.remote
+
+import org.dueattendant149.bookshelf.domain.model.remote.RemoteLibrary
+import org.dueattendant149.bookshelf.domain.repository.RemoteLibraryRepository
+import javax.inject.Inject
+
+class FetchLibrariesUseCase
+    @Inject
+    constructor(
+        private val repository: RemoteLibraryRepository,
+    ) {
+        suspend operator fun invoke(): Result<List<RemoteLibrary>> = repository.getLibraries()
+    }
diff --git a/app/src/main/java/org/dueattendant149/bookshelf/domain/use_case/remote/SearchBooksUseCase.kt b/app/src/main/java/org/dueattendant149/bookshelf/domain/use_case/remote/SearchBooksUseCase.kt
new file mode 100644
index 00000000..145592ac
--- /dev/null
+++ b/app/src/main/java/org/dueattendant149/bookshelf/domain/use_case/remote/SearchBooksUseCase.kt
@@ -0,0 +1,22 @@
+/*
+ * Book's Story — free and open-source Material You eBook reader.
+ * Copyright (C) 2024-2026 Acclorite
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+package org.dueattendant149.bookshelf.domain.use_case.remote
+
+import org.dueattendant149.bookshelf.domain.model.library.Book
+import org.dueattendant149.bookshelf.domain.repository.RemoteLibraryRepository
+import javax.inject.Inject
+
+class SearchBooksUseCase
+    @Inject
+    constructor(
+        private val repository: RemoteLibraryRepository,
+    ) {
+        suspend operator fun invoke(
+            libraryId: String,
+            query: String,
+        ): Result<List<Book>> = repository.searchLibrary(libraryId, query)
+    }