エラーIDをログに流すメソッドを実装

VCS追加(WIP)

.idea/gradle.xml

@@ -4,7 +4,6 @@
   <component name="GradleSettings">
     <option name="linkedExternalProjectsSettings">
       <GradleProjectSettings>
-        <option name="testRunner" value="GRADLE" />
         <option name="externalProjectPath" value="$PROJECT_DIR$" />
         <option name="gradleJvm" value="jbr-17" />
         <option name="modules">
@@ -30,6 +29,7 @@
             <option value="$PROJECT_DIR$/shared/ui" />
             <option value="$PROJECT_DIR$/source" />
             <option value="$PROJECT_DIR$/utils" />
+            <option value="$PROJECT_DIR$/vcs" />
           </set>
         </option>
         <option name="resolveExternalAnnotations" value="false" />

.idea/misc.xml

@@ -1,6 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="ExternalStorageConfigurationManager" enabled="true" />
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" project-jdk-name="jbr-17" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="jbr-17" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">

README.md

@@ -7,6 +7,44 @@ WIP
 ## メモ
 - アイコン: Google Material Icons https://fonts.google.com/icons (Weight:300, Grade:0, Optical size: 24px)
 
+## モジュール構成
+### モジュール一覧
+- `component` : コンポーネント
+  - `common` : 共通コンポーネント
+    - UIの中で共通で使う要素(メニューアイテムとか)
+  - `scanner` : スキャナー
+    - スキャナーの実装
+  - `viewer` : ビューワー
+    - ドキュメントビューワーの実装
+- `data` : データ
+  - UIからデータを取得/保存するためのラッパーモジュール
+  - `Document` : ドキュメント関係
+    - WIP(JavaDocを参照してください, 余裕があったら追記します)
+- `feature` : 機能モジュール(ナビゲーションからみた機能で分割)
+  - `common`: 共通機能
+    - 設定画面とか、どこからでも呼ばれうる画面
+  - `debug`: デバッグメニュー
+  - `home`: ホーム画面
+  - `library`: ライブラリ画面
+  - `scan`: スキャン画面
+  - `search`: 検索画面
+- `model` : モデル
+  - データモデルをまとめたモジュール (WIP)
+  - `document` : ドキュメント
+  - `meta` : メタデータ
+- `processor` : プロセッサ
+  - いくつかの処理をまとめたモジュール
+    - `DocumentProcessor` : ドキュメント処理（ドキュメントにページを追加したり更新したり） 
+- `shared` : 
+  - 共有リソース
+- `source` : ソース
+  - (バックエンドが使うのでとりあえず後回し、フロントから直接操作することは絶対にありません)
+- `utils` : ユーティリティ
+  - ちょっとしたユーティリティをまとめたモジュール
+  - `LacertaLogger` : ロガー
+  - `XmlMetaParser` : XMLメタデータパーサー(フロントから直接操作することは絶対にありません)
+
+
 ## コーディング規則/推奨(WIP)
 ### 規則
 - `// TODO`コメントには任意のsuffixを付ける

data/build.gradle

@@ -41,6 +41,9 @@ dependencies {
     // JGit
     implementation 'org.eclipse.jgit:org.eclipse.jgit:6.8.0.202311291450-r'
 
+    // Java Faker
+    implementation 'com.github.javafaker:javafaker:1.0.2'
+
     // Room
     implementation libs.androidx.room.runtime
     annotationProcessor libs.androidx.room.compiler

data/src/main/java/one/nem/lacerta/data/LacertaLibrary.java

@@ -0,0 +1,22 @@
+package one.nem.lacerta.data;
+
+import one.nem.lacerta.model.ListItemType;
+
+import one.nem.lacerta.model.LibraryItemPage;
+import one.nem.lacerta.model.document.DocumentDetail;
+
+public interface LacertaLibrary {
+
+    // Get History
+    LibraryItemPage getRecentDocument(int limit);
+    LibraryItemPage getRecentDocument(int limit, int offset);
+
+    // Get Library page
+    LibraryItemPage getLibraryPage(int limit);
+    LibraryItemPage getLibraryPage(int limit, int offset);
+    LibraryItemPage getLibraryPage(String pageId, int limit);
+    LibraryItemPage getLibraryPage(String pageId, int limit, int offset);
+
+    // GetDocument
+    DocumentDetail getDocumentDetailById(String id);
+}

data/src/main/java/one/nem/lacerta/data/LacertaSearch.java

@@ -0,0 +1,13 @@
+package one.nem.lacerta.data;
+
+import java.util.ArrayList;
+
+import one.nem.lacerta.model.ListItem;
+
+public interface LacertaSearch {
+
+    ArrayList<ListItem> autoSearch(String query, int limit);
+
+    ArrayList<ListItem> autoSearch(String query, int limit, int offset);
+
+}

data/src/main/java/one/nem/lacerta/data/impl/LacertaLibraryImpl.java

@@ -0,0 +1,42 @@
+package one.nem.lacerta.data.impl;
+
+import one.nem.lacerta.data.LacertaLibrary;
+import one.nem.lacerta.model.LibraryItemPage;
+import one.nem.lacerta.model.document.DocumentDetail;
+
+public class LacertaLibraryImpl implements LacertaLibrary {
+    @Override
+    public LibraryItemPage getRecentDocument(int limit) {
+        return null;
+    }
+
+    @Override
+    public LibraryItemPage getRecentDocument(int limit, int offset) {
+        return null;
+    }
+
+    @Override
+    public LibraryItemPage getLibraryPage(int limit) {
+        return null;
+    }
+
+    @Override
+    public LibraryItemPage getLibraryPage(int limit, int offset) {
+        return null;
+    }
+
+    @Override
+    public LibraryItemPage getLibraryPage(String pageId, int limit) {
+        return null;
+    }
+
+    @Override
+    public LibraryItemPage getLibraryPage(String pageId, int limit, int offset) {
+        return null;
+    }
+
+    @Override
+    public DocumentDetail getDocumentDetailById(String id) {
+        return null;
+    }
+}

data/src/main/java/one/nem/lacerta/data/impl/LacertaLibraryStubImpl.java

@@ -0,0 +1,219 @@
+package one.nem.lacerta.data.impl;
+
+import one.nem.lacerta.data.LacertaLibrary;
+import one.nem.lacerta.model.LibraryItemPage;
+import one.nem.lacerta.model.ListItem;
+import one.nem.lacerta.model.ListItemType;
+import one.nem.lacerta.model.document.DocumentDetail;
+
+import one.nem.lacerta.model.document.DocumentMeta;
+import one.nem.lacerta.model.document.path.DocumentPath;
+import one.nem.lacerta.utils.LacertaLogger;
+
+import com.github.javafaker.DateAndTime;
+import com.github.javafaker.Faker;
+
+import java.text.DateFormat;
+import java.util.ArrayList;
+import java.util.Objects;
+import java.util.UUID;
+
+import javax.inject.Inject;
+
+/**
+ * LacertaLibraryのスタブ実装
+ */
+public class LacertaLibraryStubImpl implements LacertaLibrary {
+
+    LacertaLogger logger;
+
+    Faker faker;
+
+    @Inject
+    public LacertaLibraryStubImpl(LacertaLogger logger) {
+        faker = new Faker(); // Init Faker
+        this.logger = logger;
+        logger.debug("LibraryStub", "Initialized");
+    }
+
+    // Internal Methods
+
+    // Generate Stub Data
+    private LibraryItemPage generateStubLibraryItemPage(int limit, String pageId) {
+        logger.debug("LibraryStub", "generateStubLibraryItemPage");
+        ArrayList<ListItem> listItems = new ArrayList<>();
+        int itemTotal = faker.number().numberBetween(1, limit); // 実際に返却するアイテム数を決定
+        int folderTotal;
+        // フォルダ数の抽選
+        if (itemTotal > 4) {
+            folderTotal = faker.number().numberBetween(1, itemTotal - 2);
+        }
+        else {
+            if (itemTotal > 2) {
+                folderTotal = 1;
+            }
+            else { // ドキュメント数がゼロにならないように
+                folderTotal = 0;
+            }
+        }
+        int documentTotal = itemTotal - folderTotal; // ドキュメント数を決定
+        logger.debug("LibraryStub", "itemTotal: " + itemTotal);
+        logger.debug("LibraryStub", "folderTotal: " + folderTotal);
+        logger.debug("LibraryStub", "documentTotal: " + documentTotal);
+
+        // フォルダを生成
+        for (int i = 0; i < folderTotal; i++) {
+            listItems.add(generateStubListItem(ListItemType.ITEM_TYPE_FOLDER));
+        }
+        // ドキュメントを生成
+        for (int i = 0; i < documentTotal; i++) {
+            listItems.add(generateStubListItem(ListItemType.ITEM_TYPE_DOCUMENT));
+        }
+
+        LibraryItemPage libraryItemPage = new LibraryItemPage();
+        libraryItemPage.setListItems(listItems);
+        if (pageId == null) {
+            libraryItemPage.setPageId(UUID.randomUUID().toString());
+        } else {
+            libraryItemPage.setPageId(pageId);
+        }
+        libraryItemPage.setPageTitle("FakePage" + faker.number().digits(3));
+
+        return libraryItemPage;
+    }
+
+    private ListItem generateStubListItem(ListItemType itemType) {
+        if (itemType == ListItemType.ITEM_TYPE_FOLDER) {
+            ListItem listItem = new ListItem();
+            listItem.setTitle("FakeFolder" + faker.number().digits(3));
+            listItem.setDescription("Updated at " + DateFormat.getDateTimeInstance().format(faker.date().birthday()));
+            listItem.setItemType(ListItemType.ITEM_TYPE_FOLDER);
+            listItem.setItemId(UUID.randomUUID().toString());
+            return listItem;
+        } else if (itemType == ListItemType.ITEM_TYPE_DOCUMENT) {
+            ListItem listItem = new ListItem();
+            listItem.setTitle("FakeDocument" + faker.book().title());
+            listItem.setDescription("Updated at " + DateFormat.getDateTimeInstance().format(faker.date().birthday()));
+            listItem.setItemType(ListItemType.ITEM_TYPE_DOCUMENT);
+            listItem.setItemId(UUID.randomUUID().toString());
+            return listItem;
+        } else {
+            return null;
+        }
+    }
+
+    private LibraryItemPage getRecentDocumentPage(int limit) {
+        int itemTotal = faker.number().numberBetween(1, limit);
+        ArrayList<ListItem> listItems = new ArrayList<>();
+        for (int i = 0; i < itemTotal; i++) {
+            listItems.add(generateStubListItem(ListItemType.ITEM_TYPE_DOCUMENT));
+        }
+        // DescriptionからDateを抽出して新しい順にソート
+        listItems.sort((a, b) -> {
+            String aDate = a.getDescription().substring(11);
+            String bDate = b.getDescription().substring(11);
+            return bDate.compareTo(aDate);
+        });
+        LibraryItemPage libraryItemPage = new LibraryItemPage();
+        libraryItemPage.setListItems(listItems);
+        libraryItemPage.setPageId(UUID.randomUUID().toString());
+        libraryItemPage.setPageTitle("RecentDocument");
+        return libraryItemPage;
+    }
+
+    private DocumentDetail generateStubDocumentDetail(String id) throws IllegalArgumentException {
+
+        if (Objects.isNull(id)) {
+            throw new IllegalArgumentException("id is null");
+        }
+
+        DocumentMeta documentMeta = new DocumentMeta();
+        documentMeta.setId(id);
+        documentMeta.setTitle("FakeDocument" + faker.book().title());
+        documentMeta.setCreatedAt(faker.date().birthday());
+        documentMeta.setUpdatedAt(faker.date().birthday()); // TODO-rca: 更新日のほうが古くなることがあるのでなんとかする？
+        ArrayList<String> tagIds = new ArrayList<>();
+
+        DocumentDetail documentDetail = new DocumentDetail();
+        documentDetail.setMeta(documentMeta);
+        documentDetail.setPath(null); // TODO-rca: なんとかする
+        documentDetail.setAuthor(faker.name().fullName());
+        documentDetail.setRepository(null); // TODO-rca: なんとかする
+        return documentDetail;
+    }
+
+    /**
+     * 履歴ページを取得する
+     * @param limit 取得するアイテム数
+     * @return ページオブジェクト
+     */
+    @Override
+    public LibraryItemPage getRecentDocument(int limit) {
+        return getRecentDocumentPage(limit);
+    }
+
+    /**
+     * 履歴ページを取得する
+     * @param limit 取得するアイテム数
+     * @param offset 取得するアイテムのオフセット
+     * @return ページオブジェクト
+     */
+    @Override
+    public LibraryItemPage getRecentDocument(int limit, int offset) {
+        return getRecentDocumentPage(limit);
+    }
+
+    /**
+     * ライブラリページを取得する
+     * @param limit 取得するアイテム数
+     * @return ページオブジェクト
+     */
+    @Override
+    public LibraryItemPage getLibraryPage(int limit) {
+        return generateStubLibraryItemPage(limit, null);
+    }
+
+    /**
+     * ライブラリページを取得する
+     * @param limit 取得するアイテム数
+     * @param offset 取得するアイテムのオフセット
+     * @return ページオブジェクト
+     */
+    @Override
+    public LibraryItemPage getLibraryPage(int limit, int offset) {
+        return generateStubLibraryItemPage(limit, null);
+    }
+
+    /**
+     * ライブラリページを取得する
+     * @param pageId ページID
+     * @param limit 取得するアイテム数
+     * @return ページオブジェクト
+     */
+    @Override
+    public LibraryItemPage getLibraryPage(String pageId, int limit) {
+        return generateStubLibraryItemPage(limit, pageId);
+    }
+
+    /**
+     * ライブラリページを取得する
+     * @param pageId ページID
+     * @param limit 取得するアイテム数
+     * @param offset 取得するアイテムのオフセット
+     * @return ページオブジェクト
+     */
+    @Override
+    public LibraryItemPage getLibraryPage(String pageId, int limit, int offset) {
+        return generateStubLibraryItemPage(limit, pageId);
+    }
+
+    /**
+     * ドキュメント詳細を取得する
+     * @param id ドキュメントID
+     * @return ドキュメント詳細オブジェクト
+     */
+    @Override
+    public DocumentDetail getDocumentDetailById(String id) throws IllegalArgumentException {
+        return generateStubDocumentDetail(id);
+    }
+}

data/src/main/java/one/nem/lacerta/data/impl/LacertaSearchStubImpl.java

@@ -0,0 +1,51 @@
+package one.nem.lacerta.data.impl;
+
+import java.util.ArrayList;
+
+import javax.inject.Inject;
+
+import one.nem.lacerta.data.LacertaSearch;
+import one.nem.lacerta.model.ListItem;
+
+import one.nem.lacerta.data.LacertaLibrary;
+import one.nem.lacerta.utils.LacertaLogger;
+
+public class LacertaSearchStubImpl implements LacertaSearch {
+
+    private LacertaLibrary library;
+    private LacertaLogger logger;
+
+
+    @Inject
+    public LacertaSearchStubImpl(LacertaLibrary library, LacertaLogger logger) {
+        this.library = library;
+        this.logger = logger;
+    }
+
+    /**
+     * 検索
+     * @param query 検索クエリ
+     * @param limit 最大取得件数
+     * @return 検索結果
+     */
+    @Override
+    public ArrayList<ListItem> autoSearch(String query, int limit) {
+        logger.debug("SearchStub", "autoSearch");
+        logger.debug("SearchStub", "query: " + query);
+        return library.getLibraryPage(limit).getListItems();
+    }
+
+    /**
+     * 検索
+     * @param query 検索クエリ
+     * @param limit 最大取得件数
+     * @param offset オフセット
+     * @return 検索結果
+     */
+    @Override
+    public ArrayList<ListItem> autoSearch(String query, int limit, int offset) {
+        logger.debug("SearchStub", "autoSearch");
+        logger.debug("SearchStub", "query: " + query);
+        return library.getLibraryPage(limit, offset).getListItems();
+    }
+}

data/src/main/java/one/nem/lacerta/data/module/LacertaLibraryModule.java

@@ -0,0 +1,21 @@
+package one.nem.lacerta.data.module;
+
+import dagger.Binds;
+import dagger.Module;
+import dagger.hilt.InstallIn;
+import dagger.hilt.android.components.FragmentComponent;
+import dagger.hilt.migration.DisableInstallInCheck;
+
+import one.nem.lacerta.data.LacertaLibrary;
+import one.nem.lacerta.data.impl.LacertaLibraryStubImpl;
+import one.nem.lacerta.utils.LacertaLogger;
+
+@Module
+// Fragmentにinstall
+@InstallIn(FragmentComponent.class)
+abstract public class LacertaLibraryModule {
+
+    @Binds
+    public abstract LacertaLibrary bindLacertaLibrary(LacertaLibraryStubImpl impl);
+
+}

data/src/main/java/one/nem/lacerta/data/module/LacertaSearchModule.java

@@ -0,0 +1,16 @@
+package one.nem.lacerta.data.module;
+
+import dagger.Binds;
+import dagger.Module;
+import dagger.hilt.InstallIn;
+import dagger.hilt.android.components.FragmentComponent;
+import one.nem.lacerta.data.LacertaSearch;
+import one.nem.lacerta.data.impl.LacertaSearchStubImpl;
+
+@Module
+@InstallIn(FragmentComponent.class)
+abstract public class LacertaSearchModule {
+
+    @Binds
+    public abstract LacertaSearch bindLacertaSearch(LacertaSearchStubImpl impl);
+}

feature/debug/build.gradle

@@ -68,4 +68,7 @@ dependencies {
     // Processor
     implementation project(':processor')
 
+    // LacertaVcs
+    implementation project(':vcs')
+
 }

feature/debug/src/main/java/one/nem/lacerta/feature/debug/DebugMenuFileManagerTesterFragment.java

@@ -1,110 +0,0 @@
-package one.nem.lacerta.feature.debug;
-
-import android.graphics.Bitmap;
-import android.graphics.Canvas;
-import android.graphics.Color;
-import android.graphics.Paint;
-import android.os.Bundle;
-
-import androidx.fragment.app.Fragment;
-
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.EditText;
-
-import dagger.hilt.android.AndroidEntryPoint;
-import one.nem.lacerta.source.file.FileManager;
-import one.nem.lacerta.source.file.factory.FileManagerFactory;
-
-import one.nem.lacerta.utils.repository.DeviceInfoUtils;
-
-import javax.inject.Inject;
-
-/**
- * A simple {@link Fragment} subclass.
- * Use the {@link DebugMenuFileManagerTesterFragment#newInstance} factory method to
- * create an instance of this fragment.
- */
-@AndroidEntryPoint
-public class DebugMenuFileManagerTesterFragment extends Fragment {
-
-    public DebugMenuFileManagerTesterFragment() {
-        // Required empty public constructor
-    }
-
-    @Inject
-    FileManagerFactory fileManagerFactory;
-
-    @Inject
-    DeviceInfoUtils deviceInfoUtils;
-
-    // TODO: Rename and change types and number of parameters
-    public static DebugMenuFileManagerTesterFragment newInstance() {
-        DebugMenuFileManagerTesterFragment fragment = new DebugMenuFileManagerTesterFragment();
-        Bundle args = new Bundle();
-
-        fragment.setArguments(args);
-        return fragment;
-    }
-
-    @Override
-    public void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-    }
-
-    @Override
-    public View onCreateView(LayoutInflater inflater, ViewGroup container,
-                             Bundle savedInstanceState) {
-        // Inflate the layout for this fragment
-        View view = inflater.inflate(R.layout.fragment_debug_menu_file_manager_tester, container, false);
-
-        view.findViewById(R.id.button_create_directory).setOnClickListener(v -> {
-            EditText editText = view.findViewById(R.id.edit_text_dir_name);
-            String dirName = editText.getText().toString();
-
-//            FileManager fileManager = fileManagerFactory.create(deviceInfoUtils.getExternalStorageDirectory());
-//            fileManager.createDir(dirName);
-        });
-
-        view.findViewById(R.id.button_save_item).setOnClickListener(v -> {
-//            FileManager fileManager = fileManagerFactory.create(deviceInfoUtils.getExternalStorageDirectory());
-//            fileManager.createDir("test");
-//            fileManager.changeDir("test");
-//            Bitmap bitmap = Bitmap.createBitmap(1000, 1000, Bitmap.Config.ARGB_8888);
-//            // Bitmapに描画処理を行う
-//            Canvas canvas = new Canvas(bitmap);
-//            // 大きな山の形状を作成
-//            android.graphics.Path bigMountainPath = new android.graphics.Path();
-//            bigMountainPath.moveTo(100, 800); // 左下の開始点
-//            bigMountainPath.lineTo(500, 300); // 頂点
-//            bigMountainPath.lineTo(900, 800); // 右下
-//            bigMountainPath.close(); // パスを閉じる
-//
-//            // 山の描画設定
-//            Paint mountainPaint = new Paint();
-//            mountainPaint.setColor(Color.GREEN);
-//            mountainPaint.setStyle(Paint.Style.FILL);
-//
-//            // 大きな山を描画
-//            canvas.drawPath(bigMountainPath, mountainPaint);
-//
-//            // 小さな山の形状を作成
-//            android.graphics.Path smallMountainPath = new android.graphics.Path();
-//            smallMountainPath.moveTo(400, 800); // 左下の開始点
-//            smallMountainPath.lineTo(650, 400); // 頂点
-//            smallMountainPath.lineTo(900, 800); // 右下
-//            smallMountainPath.close(); // パスを閉じる
-//
-//            Paint smallMountainPaint = new Paint();
-//            smallMountainPaint.setColor(Color.parseColor("#006e54"));
-//            smallMountainPaint.setStyle(Paint.Style.FILL);
-//
-//            // 小さな山を描画
-//            canvas.drawPath(smallMountainPath, smallMountainPaint);
-//            fileManager.saveBitmapAtCurrent(bitmap, "test.png");
-        });
-
-        return view;
-    }
-}

feature/debug/src/main/java/one/nem/lacerta/feature/debug/DebugMenuLibraryItemListPageFragment.java

@@ -0,0 +1,115 @@
+package one.nem.lacerta.feature.debug;
+
+import android.os.Bundle;
+
+import androidx.annotation.AnimatorRes;
+import androidx.fragment.app.Fragment;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import java.util.ArrayList;
+
+import javax.inject.Inject;
+
+import dagger.hilt.android.AndroidEntryPoint;
+import one.nem.lacerta.data.LacertaLibrary;
+
+import one.nem.lacerta.model.LibraryItemPage;
+import one.nem.lacerta.model.document.DocumentDetail;
+import one.nem.lacerta.model.ListItem;
+import one.nem.lacerta.model.ListItemType;
+
+/**
+ * A simple {@link Fragment} subclass.
+ * Use the {@link DebugMenuLibraryItemListPageFragment#newInstance} factory method to
+ * create an instance of this fragment.
+ */
+@AndroidEntryPoint
+public class DebugMenuLibraryItemListPageFragment extends Fragment {
+
+    @Inject
+    LacertaLibrary lacertaLibrary;
+
+    public DebugMenuLibraryItemListPageFragment() {
+        // Required empty public constructor
+    }
+
+    public static DebugMenuLibraryItemListPageFragment newInstance() {
+        DebugMenuLibraryItemListPageFragment fragment = new DebugMenuLibraryItemListPageFragment();
+        Bundle args = new Bundle();
+        fragment.setArguments(args);
+        return fragment;
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+        // Inflate the layout for this fragment
+        View view = inflater.inflate(R.layout.fragment_debug_menu_library_item_list_page, container, false);
+
+        LibraryItemPage libraryItemPage = lacertaLibrary.getRecentDocument(10);
+        for (ListItem listItem : libraryItemPage.getListItems()) {
+            System.out.println(listItem.getTitle());
+        }
+
+        RecyclerView recyclerView = view.findViewById(R.id.item_recycler_view);
+        recyclerView.setAdapter(new ItemAdapter(libraryItemPage.getListItems()));
+
+        recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
+
+        return view;
+    }
+
+    private class ItemAdapter extends RecyclerView.Adapter<ItemAdapter.ItemViewHolder> {
+        private ArrayList<ListItem> listItems;
+
+        public ItemAdapter(ArrayList<ListItem> listItems) {
+            this.listItems = listItems;
+        }
+
+        @Override
+        public ItemViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+            View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.list_item_debug_menu_document, parent, false);
+            return new ItemViewHolder(view);
+        }
+
+        @Override
+        public void onBindViewHolder(ItemViewHolder holder, int position) {
+            ListItem listItem = listItems.get(position);
+            holder.document_list_item_title.setText(listItem.getTitle());
+            holder.document_list_item_description.setText(listItem.getDescription());
+            holder.document_list_item_updated_at.setText(listItem.getItemType().toString());
+        }
+
+        @Override
+        public int getItemCount() {
+            return listItems.size();
+        }
+
+        public class ItemViewHolder extends RecyclerView.ViewHolder {
+
+            TextView document_list_item_title;
+            TextView document_list_item_description;
+            TextView document_list_item_updated_at;
+
+
+            public ItemViewHolder(View itemView) {
+                super(itemView);
+                document_list_item_title = itemView.findViewById(R.id.document_list_item_title);
+                document_list_item_description = itemView.findViewById(R.id.document_list_item_description);
+                document_list_item_updated_at = itemView.findViewById(R.id.document_list_item_updated_at);
+            }
+        }
+    }
+
+}

feature/debug/src/main/java/one/nem/lacerta/feature/debug/DebugMenuTopFragment.java

@@ -48,10 +48,10 @@ public class DebugMenuTopFragment extends Fragment {
         recyclerView.setLayoutManager(new androidx.recyclerview.widget.LinearLayoutManager(getContext()));
         List<DebugMenuListItem> debugMenuListItems = new ArrayList<>();
 
-        debugMenuListItems.add(new DebugMenuListItem("Meta Data", "View meta data", R.id.action_debugMenuTopFragment_to_debugMenuMetaDataFragment, true));
         debugMenuListItems.add(new DebugMenuListItem("Document Tester", "placeholder", R.id.action_debugMenuTopFragment_to_debugMenuDocumentTesterTopFragment, true));
         debugMenuListItems.add(new DebugMenuListItem("Scanner", "placeholder", R.id.action_debugMenuTopFragment_to_scannerDataManagerStubFragment, true));
-        debugMenuListItems.add(new DebugMenuListItem("File Manager", "placeholder", R.id.action_debugMenuTopFragment_to_debugMenuFileManagerTesterFragment, true));
+        debugMenuListItems.add(new DebugMenuListItem("Document List", "placeholder", R.id.action_debugMenuTopFragment_to_debugMenuLibraryItemListPageFragment, true));
+        debugMenuListItems.add(new DebugMenuListItem("VCS", "placeholder", R.id.action_debugMenuTopFragment_to_debugMenuVcsGeneralFragment, true));
 
         DebugMenuListItemAdapter adapter = new DebugMenuListItemAdapter(debugMenuListItems);
         recyclerView.setAdapter(adapter);

feature/debug/src/main/java/one/nem/lacerta/feature/debug/DebugMenuVcsGeneralActionFragment.java

@@ -0,0 +1,58 @@
+package one.nem.lacerta.feature.debug;
+
+import android.os.Bundle;
+
+import androidx.fragment.app.Fragment;
+
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import javax.inject.Inject;
+
+import dagger.hilt.android.AndroidEntryPoint;
+import one.nem.lacerta.vcs.LacertaVcs;
+import one.nem.lacerta.vcs.factory.LacertaVcsFactory;
+
+/**
+ * A simple {@link Fragment} subclass.
+ * Use the {@link DebugMenuVcsGeneralActionFragment#newInstance} factory method to
+ * create an instance of this fragment.
+ */
+
+@AndroidEntryPoint
+public class DebugMenuVcsGeneralActionFragment extends Fragment {
+
+    @Inject
+    LacertaVcsFactory lacertaVcsFactory;
+
+    public DebugMenuVcsGeneralActionFragment() {
+        // Required empty public constructor
+    }
+
+    public static DebugMenuVcsGeneralActionFragment newInstance() {
+        DebugMenuVcsGeneralActionFragment fragment = new DebugMenuVcsGeneralActionFragment();
+        Bundle args = new Bundle();
+        fragment.setArguments(args);
+        return fragment;
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+        // Inflate the layout for this fragment
+        View view = inflater.inflate(R.layout.fragment_debug_menu_vcs_general_action, container, false);
+
+        view.findViewById(R.id.add_sample_log_rev_button).setOnClickListener(v -> {
+            LacertaVcs lacertaVcs = lacertaVcsFactory.create("example_id");
+            lacertaVcs.insertPage(1, "example_id");
+        });
+
+        return view;
+    }
+}

feature/debug/src/main/java/one/nem/lacerta/feature/debug/DebugMenuVcsGeneralFragment.java

@@ -0,0 +1,59 @@
+package one.nem.lacerta.feature.debug;
+
+import android.os.Bundle;
+
+import androidx.fragment.app.Fragment;
+import androidx.recyclerview.widget.RecyclerView;
+
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import one.nem.lacerta.feature.debug.common.adapter.DebugMenuListItemAdapter;
+import one.nem.lacerta.feature.debug.common.model.DebugMenuListItem;
+
+/**
+ * A simple {@link Fragment} subclass.
+ * Use the {@link DebugMenuVcsGeneralFragment#newInstance} factory method to
+ * create an instance of this fragment.
+ */
+public class DebugMenuVcsGeneralFragment extends Fragment {
+    public DebugMenuVcsGeneralFragment() {
+        // Required empty public constructor
+    }
+
+    public static DebugMenuVcsGeneralFragment newInstance() {
+        DebugMenuVcsGeneralFragment fragment = new DebugMenuVcsGeneralFragment();
+        Bundle args = new Bundle();
+        fragment.setArguments(args);
+        return fragment;
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+        // Inflate the layout for this fragment
+        View view = inflater.inflate(R.layout.fragment_debug_menu_vcs_general, container, false);
+
+        RecyclerView recyclerView = view.findViewById(R.id.recycler_view);
+        recyclerView.setLayoutManager(new androidx.recyclerview.widget.LinearLayoutManager(getContext()));
+        List<DebugMenuListItem> debugMenuListItems = new ArrayList<>();
+
+        debugMenuListItems.add(new DebugMenuListItem("General Action", "placeholder", R.id.action_debugMenuVcsGeneralFragment_to_debugMenuVcsGeneralActionFragment, true));
+        debugMenuListItems.add(new DebugMenuListItem("Log Record", "placeholder", R.id.action_debugMenuVcsGeneralFragment_to_debugMenuVcsLogRecordFragment, true));
+        debugMenuListItems.add(new DebugMenuListItem("Rev Record", "placeholder", R.id.action_debugMenuVcsGeneralFragment_to_debugMenuVcsRevRecordFragment, true));
+
+        DebugMenuListItemAdapter adapter = new DebugMenuListItemAdapter(debugMenuListItems);
+        recyclerView.setAdapter(adapter);
+
+        return view;
+    }
+}

feature/debug/src/main/java/one/nem/lacerta/feature/debug/DebugMenuVcsLogRecordFragment.java

@@ -0,0 +1,42 @@
+package one.nem.lacerta.feature.debug;
+
+import android.os.Bundle;
+
+import androidx.fragment.app.Fragment;
+
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+/**
+ * A simple {@link Fragment} subclass.
+ * Use the {@link DebugMenuVcsLogRecordFragment#newInstance} factory method to
+ * create an instance of this fragment.
+ */
+public class DebugMenuVcsLogRecordFragment extends Fragment {
+
+    public DebugMenuVcsLogRecordFragment() {
+        // Required empty public constructor
+    }
+
+    public static DebugMenuVcsLogRecordFragment newInstance() {
+        DebugMenuVcsLogRecordFragment fragment = new DebugMenuVcsLogRecordFragment();
+        Bundle args = new Bundle();
+        fragment.setArguments(args);
+        return fragment;
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+        // Inflate the layout for this fragment
+        View view = inflater.inflate(R.layout.fragment_debug_menu_vcs_log_record, container, false);
+
+        return view;
+    }
+}

feature/debug/src/main/java/one/nem/lacerta/feature/debug/DebugMenuVcsRevRecordFragment.java

@@ -10,16 +10,16 @@ import android.view.ViewGroup;
 
 /**
  * A simple {@link Fragment} subclass.
- * Use the {@link DebugMenuMetaDataFragment#newInstance} factory method to
+ * Use the {@link DebugMenuVcsRevRecordFragment#newInstance} factory method to
  * create an instance of this fragment.
  */
-public class DebugMenuMetaDataFragment extends Fragment {
-    public DebugMenuMetaDataFragment() {
+public class DebugMenuVcsRevRecordFragment extends Fragment {
+    public DebugMenuVcsRevRecordFragment() {
         // Required empty public constructor
     }
 
-    public static DebugMenuMetaDataFragment newInstance() {
-        DebugMenuMetaDataFragment fragment = new DebugMenuMetaDataFragment();
+    public static DebugMenuVcsRevRecordFragment newInstance() {
+        DebugMenuVcsRevRecordFragment fragment = new DebugMenuVcsRevRecordFragment();
         Bundle args = new Bundle();
         fragment.setArguments(args);
         return fragment;
@@ -34,6 +34,8 @@ public class DebugMenuMetaDataFragment extends Fragment {
     public View onCreateView(LayoutInflater inflater, ViewGroup container,
                              Bundle savedInstanceState) {
         // Inflate the layout for this fragment
-        return inflater.inflate(R.layout.fragment_debug_menu_meta_data, container, false);
+        View view = inflater.inflate(R.layout.fragment_debug_menu_vcs_rev_record, container, false);
+
+        return view;
     }
 }

feature/debug/src/main/res/layout/fragment_debug_menu_file_manager_tester.xml

@@ -1,40 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    tools:context=".DebugMenuFileManagerTesterFragment">
-
-    <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:orientation="vertical"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintTop_toTopOf="parent">
-
-        <EditText
-            android:id="@+id/edit_text_dir_name"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"/>
-
-        <Button
-            android:id="@+id/button_create_directory"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="Create dir" />
-        <Button
-            android:id="@+id/button_dir_list"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="List item in current" />
-
-        <Button
-            android:id="@+id/button_save_item"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="Save Test Image" />
-    </LinearLayout>
-
-</androidx.constraintlayout.widget.ConstraintLayout>

feature/debug/src/main/res/layout/fragment_debug_menu_library_item_list_page.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".DebugMenuLibraryItemListPageFragment">
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/item_recycler_view"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+</androidx.constraintlayout.widget.ConstraintLayout>

feature/debug/src/main/res/layout/fragment_debug_menu_meta_data.xml

@@ -1,12 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    tools:context=".DebugMenuMetaDataFragment">
-
-    <!-- TODO: Update blank fragment layout -->
-
-
-
-</FrameLayout>

feature/debug/src/main/res/layout/fragment_debug_menu_vcs_general.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".DebugMenuVcsGeneralFragment">
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/recycler_view"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+</androidx.constraintlayout.widget.ConstraintLayout>

feature/debug/src/main/res/layout/fragment_debug_menu_vcs_general_action.xml

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".DebugMenuVcsGeneralActionFragment">
+
+    <ScrollView
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="vertical" >
+
+            <Button
+                android:id="@+id/add_sample_log_rev_button"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:text="Add Sample log/Rev" />
+        </LinearLayout>
+    </ScrollView>
+</androidx.constraintlayout.widget.ConstraintLayout>

feature/debug/src/main/res/layout/fragment_debug_menu_vcs_log_record.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".DebugMenuVcsGeneralFragment">
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/log_recycler_view"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+</androidx.constraintlayout.widget.ConstraintLayout>

feature/debug/src/main/res/layout/fragment_debug_menu_vcs_rev_record.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".DebugMenuVcsGeneralFragment">
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/rev_recycler_view"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+</androidx.constraintlayout.widget.ConstraintLayout>

feature/debug/src/main/res/navigation/feature_debug_internal_navigation.xml

@@ -10,9 +10,6 @@
         android:name="one.nem.lacerta.feature.debug.DebugMenuTopFragment"
         android:label="fragment_debug_menu_top"
         tools:layout="@layout/fragment_debug_menu_top" >
-        <action
-            android:id="@+id/action_debugMenuTopFragment_to_debugMenuMetaDataFragment"
-            app:destination="@id/debugMenuMetaDataFragment" />
         <action
             android:id="@+id/action_debugMenuTopFragment_to_debugMenuDocumentTesterTopFragment"
             app:destination="@id/debugMenuDocumentTesterTopFragment" />
@@ -20,14 +17,12 @@
             android:id="@+id/action_debugMenuTopFragment_to_scannerDataManagerStubFragment"
             app:destination="@id/scannerDataManagerStubFragment" />
         <action
-            android:id="@+id/action_debugMenuTopFragment_to_debugMenuFileManagerTesterFragment"
-            app:destination="@id/debugMenuFileManagerTesterFragment" />
+            android:id="@+id/action_debugMenuTopFragment_to_debugMenuLibraryItemListPageFragment"
+            app:destination="@id/debugMenuLibraryItemListPageFragment" />
+        <action
+            android:id="@+id/action_debugMenuTopFragment_to_debugMenuVcsGeneralFragment"
+            app:destination="@id/debugMenuVcsGeneralFragment" />
     </fragment>
-    <fragment
-        android:id="@+id/debugMenuMetaDataFragment"
-        android:name="one.nem.lacerta.feature.debug.DebugMenuMetaDataFragment"
-        android:label="fragment_debug_menu_meta_data"
-        tools:layout="@layout/fragment_debug_menu_meta_data" />
     <fragment
         android:id="@+id/debugMenuDocumentTesterTopFragment"
         android:name="one.nem.lacerta.feature.debug.DebugMenuDocumentTesterTopFragment"
@@ -55,8 +50,38 @@
         android:name="one.nem.lacerta.component.scanner.ScannerDataManagerStubFragment"
         android:label="ScannerDataManagerStubFragment" />
     <fragment
-        android:id="@+id/debugMenuFileManagerTesterFragment"
-        android:name="one.nem.lacerta.feature.debug.DebugMenuFileManagerTesterFragment"
-        android:label="fragment_debug_menu_file_manager_tester"
-        tools:layout="@layout/fragment_debug_menu_file_manager_tester" />
+        android:id="@+id/debugMenuLibraryItemListPageFragment"
+        android:name="one.nem.lacerta.feature.debug.DebugMenuLibraryItemListPageFragment"
+        android:label="fragment_debug_menu_library_item_list_page"
+        tools:layout="@layout/fragment_debug_menu_library_item_list_page" />
+    <fragment
+        android:id="@+id/debugMenuVcsGeneralFragment"
+        android:name="one.nem.lacerta.feature.debug.DebugMenuVcsGeneralFragment"
+        android:label="fragment_debug_menu_vcs_general"
+        tools:layout="@layout/fragment_debug_menu_vcs_general" >
+        <action
+            android:id="@+id/action_debugMenuVcsGeneralFragment_to_debugMenuVcsGeneralActionFragment"
+            app:destination="@id/debugMenuVcsGeneralActionFragment" />
+        <action
+            android:id="@+id/action_debugMenuVcsGeneralFragment_to_debugMenuVcsRevRecordFragment"
+            app:destination="@id/debugMenuVcsRevRecordFragment" />
+        <action
+            android:id="@+id/action_debugMenuVcsGeneralFragment_to_debugMenuVcsLogRecordFragment"
+            app:destination="@id/debugMenuVcsLogRecordFragment" />
+    </fragment>
+    <fragment
+        android:id="@+id/debugMenuVcsGeneralActionFragment"
+        android:name="one.nem.lacerta.feature.debug.DebugMenuVcsGeneralActionFragment"
+        android:label="fragment_debug_menu_vcs_general_action"
+        tools:layout="@layout/fragment_debug_menu_vcs_general_action" />
+    <fragment
+        android:id="@+id/debugMenuVcsLogRecordFragment"
+        android:name="one.nem.lacerta.feature.debug.DebugMenuVcsLogRecordFragment"
+        android:label="fragment_debug_menu_vcs_log_record"
+        tools:layout="@layout/fragment_debug_menu_vcs_log_record" />
+    <fragment
+        android:id="@+id/debugMenuVcsRevRecordFragment"
+        android:name="one.nem.lacerta.feature.debug.DebugMenuVcsRevRecordFragment"
+        android:label="fragment_debug_menu_vcs_rev_record"
+        tools:layout="@layout/fragment_debug_menu_vcs_rev_record" />
 </navigation>

model/build.gradle

@@ -36,4 +36,6 @@ dependencies {
     // JGit
     implementation 'org.eclipse.jgit:org.eclipse.jgit:6.8.0.202311291450-r'
 
+    implementation project(":shared:ui")
+
 }

model/src/main/java/one/nem/lacerta/model/LibraryItemPage.java

@@ -0,0 +1,51 @@
+package one.nem.lacerta.model;
+
+import java.util.ArrayList;
+
+public class LibraryItemPage {
+
+    String pageTitle;
+    String pageId;
+    ArrayList<ListItem> listItems;
+
+    // Constructor
+
+    public LibraryItemPage(String pageTitle, String pageId, ArrayList<ListItem> listItems) {
+        this.pageTitle = pageTitle;
+        this.pageId = pageId;
+        this.listItems = listItems;
+    }
+
+    public LibraryItemPage() {
+        // Empty constructor
+    }
+
+    // Getter
+
+    public String getPageTitle() {
+        return pageTitle;
+    }
+
+    public String getPageId() {
+        return pageId;
+    }
+
+    public ArrayList<ListItem> getListItems() {
+        return listItems;
+    }
+
+    // Setter
+
+    public void setPageTitle(String pageTitle) {
+        this.pageTitle = pageTitle;
+    }
+
+    public void setPageId(String pageId) {
+        this.pageId = pageId;
+    }
+
+    public void setListItems(ArrayList<ListItem> listItems) {
+        this.listItems = listItems;
+    }
+
+}

model/src/main/java/one/nem/lacerta/model/ListItem.java

@@ -0,0 +1,63 @@
+package one.nem.lacerta.model;
+
+import android.graphics.drawable.Drawable;
+
+public class ListItem {
+
+    // Properties
+
+    String title;
+    String description;
+    ListItemType itemType;
+    String itemId;
+
+    // Constructor
+
+    public ListItem(String title, String description, ListItemType itemType, String itemId) {
+        this.title = title;
+        this.description = description;
+        this.itemType = itemType;
+        this.itemId = itemId;
+    }
+
+    public ListItem() {
+        // Empty constructor
+    }
+
+    // Getter
+
+    public String getTitle() {
+        return title;
+    }
+
+    public String getDescription() {
+        return description;
+    }
+
+    public ListItemType getItemType() {
+        return itemType;
+    }
+
+    public String getItemId() {
+        return itemId;
+    }
+
+    // Setter
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public void setDescription(String description) {
+        this.description = description;
+    }
+
+    public void setItemType(ListItemType itemType) {
+        this.itemType = itemType;
+    }
+
+    public void setItemId(String itemId) {
+        this.itemId = itemId;
+    }
+
+}

model/src/main/java/one/nem/lacerta/model/ListItemType.java

@@ -0,0 +1,17 @@
+package one.nem.lacerta.model;
+
+public enum ListItemType {
+
+    ITEM_TYPE_FOLDER(one.nem.lacerta.shared.ui.R.drawable.folder_24px),
+    ITEM_TYPE_DOCUMENT(one.nem.lacerta.shared.ui.R.drawable.description_24px);
+
+    private int iconId;
+
+    ListItemType(int iconId) {
+        this.iconId = iconId;
+    }
+
+    public int getIconId() {
+        return iconId;
+    }
+}

model/src/main/java/one/nem/lacerta/model/PublicPath.java

@@ -0,0 +1,68 @@
+package one.nem.lacerta.model;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class PublicPath {
+    /*
+     * ユーザーが扱うパス(内部パスの代替)
+     * (時間がないのでInjectされることは考慮しない)
+     *
+     * TODO-rca:
+     *  - こわれたパスを検知する
+     *  - バリデーション
+     */
+
+    List<String> path = new ArrayList<String>();
+
+    public PublicPath() {
+    }
+
+    public PublicPath(List<String> path) {
+        this.path = path;
+    }
+
+    private void add(String path) {
+        this.path.add(path);
+    }
+
+    private void resolveInternal(String path) {
+        if (path.equals("..")) {
+            this.path.remove(this.path.size() - 1);
+        } else {
+            add(path);
+        }
+    }
+
+    public PublicPath resolve(String path) {
+        resolveInternal(path);
+        return this;
+    }
+
+    public PublicPath resolve(List<String> path) {
+        for (String p : path) {
+            resolveInternal(p);
+        }
+        return this;
+    }
+
+    public PublicPath resolve(PublicPath path) {
+        for (String p : path.getPath()) {
+            resolveInternal(p);
+        }
+        return this;
+    }
+
+    public PublicPath parent() {
+        this.path.remove(this.path.size() - 1);
+        return this;
+    }
+
+    public List<String> getPath() {
+        return path;
+    }
+
+    public String getStringPath() {
+        return String.join("/", path);
+    }
+}

model/src/main/java/one/nem/lacerta/model/document/internal/XmlMetaModel.java

@@ -70,35 +70,4 @@ public class XmlMetaModel {
         this.pages = pages;
     }
 
-    // Public Methods
-
-    public void addPage(XmlMetaPageModel page) {
-        this.pages.add(page);
-    }
-
-    public void addPageAfterIndex(int index, XmlMetaPageModel page) {
-        this.pages.add(index, page);
-
-        //Update index
-        this.updateIndex();
-    }
-
-    public void removePage(XmlMetaPageModel page) {
-        this.pages.remove(page);
-    }
-
-    public void removePageAtIndex(int index) {
-        this.pages.remove(index);
-
-        //Update index
-        this.updateIndex();
-    }
-
-    // Internal Methods
-    private void updateIndex() { // TODO-rca: 効率悪そう
-        for (int i = 0; i < this.pages.size(); i++) {
-            this.pages.get(i).setIndex(i);
-        }
-    }
-
 }

model/src/main/java/one/nem/lacerta/model/document/internal/XmlMetaPageModel.java

@@ -2,7 +2,6 @@ package one.nem.lacerta.model.document.internal;
 
 public class XmlMetaPageModel {
 
-    int index;
     String filename;
 
     // Constructor
@@ -10,27 +9,18 @@ public class XmlMetaPageModel {
     public XmlMetaPageModel() {
     }
 
-    public XmlMetaPageModel(int index, String filename) {
-        this.index = index;
+    public XmlMetaPageModel(String filename) {
         this.filename = filename;
     }
 
     // Getter
 
-    public int getIndex() {
-        return index;
-    }
-
     public String getFilename() {
         return filename;
     }
 
     // Setter
 
-    public void setIndex(int index) {
-        this.index = index;
-    }
-
     public void setFilename(String filename) {
         this.filename = filename;
     }

processor/src/main/java/one/nem/lacerta/processor/DocumentProcessor.java

@@ -7,9 +7,9 @@ public interface DocumentProcessor {
     // ページ操作
     void addNewPageToLast(Bitmap bitmap) throws Exception;
     void addNewPagesToLast(Bitmap[] bitmaps) throws Exception;
-    void addNewPageAfterIndex(Bitmap bitmap, int index);
-    void addNewPageBeforeIndex(Bitmap bitmap, int index);
-    void removePageAtIndex(int index);
+    void addNewPageAfterIndex(Bitmap bitmap, int index) throws Exception;
+    void addNewPageBeforeIndex(Bitmap bitmap, int index) throws Exception;
+    void removePageAtIndex(int index) throws Exception;
 
     // 更新
     void updatePageAtIndex(Bitmap bitmap, int index);

processor/src/main/java/one/nem/lacerta/processor/impl/DocumentProcessorImpl.java

@@ -102,11 +102,10 @@ public class DocumentProcessorImpl implements DocumentProcessor{
 
         XmlMetaPageModel xmlMetaPageModel = new XmlMetaPageModel();
         xmlMetaPageModel.setFilename(filename);
-        xmlMetaPageModel.setIndex(xmlMetaModel.getPages().size() + 1);
         xmlMetaModel.getPages().add(xmlMetaPageModel);
 
         logger.info("addNewPageToLast", "finished");
-        logger.info("addNewPageToLast", "filename: " + filename + ", index: " + xmlMetaPageModel.getIndex());
+        logger.info("addNewPageToLast", "filename: " + filename);
     }
 
     @Override
@@ -119,13 +118,27 @@ public class DocumentProcessorImpl implements DocumentProcessor{
     }
 
     @Override
-    public void addNewPageAfterIndex(Bitmap bitmap, int index) {
+    public void addNewPageAfterIndex(Bitmap bitmap, int index) throws Exception {
+        logger.debug("addNewPageAfterIndex", "called");
+        String filename = UUID.randomUUID().toString() + ".png"; // TODO-rca: 拡張子を動的にする
 
+        this.fileManager.getNewInstance().createDirectoryIfNotExist(DEFAULT_SAVE_DIR).resolve(DEFAULT_SAVE_DIR).saveBitmap(bitmap, filename);
+
+        XmlMetaPageModel xmlMetaPageModel = new XmlMetaPageModel();
+        xmlMetaPageModel.setFilename(filename);
+        xmlMetaModel.getPages().add(index, xmlMetaPageModel);
     }
 
     @Override
-    public void addNewPageBeforeIndex(Bitmap bitmap, int index) {
+    public void addNewPageBeforeIndex(Bitmap bitmap, int index) throws Exception {
+        logger.debug("addNewPageBeforeIndex", "called");
+        String filename = UUID.randomUUID().toString() + ".png"; // TODO-rca: 拡張子を動的にする
 
+        this.fileManager.getNewInstance().createDirectoryIfNotExist(DEFAULT_SAVE_DIR).resolve(DEFAULT_SAVE_DIR).saveBitmap(bitmap, filename);
+
+        XmlMetaPageModel xmlMetaPageModel = new XmlMetaPageModel();
+        xmlMetaPageModel.setFilename(filename);
+        xmlMetaModel.getPages().add(index - 1, xmlMetaPageModel);
     }
 
     @Override

settings.gradle

@@ -31,3 +31,4 @@ include ':model'
 include ':processor'
 include ':shared:ui'
 include ':shared:icon'
+include ':vcs'

shared/ui/src/main/res/drawable/description_24px.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="960"
+    android:viewportHeight="960"
+    android:tint="?attr/colorControlNormal">
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M330,710L630,710L630,650L330,650L330,710ZM330,550L630,550L630,490L330,490L330,550ZM252.31,860Q222,860 201,839Q180,818 180,787.69L180,172.31Q180,142 201,121Q222,100 252.31,100L570,100L780,310L780,787.69Q780,818 759,839Q738,860 707.69,860L252.31,860ZM540,340L540,160L252.31,160Q247.69,160 243.85,163.85Q240,167.69 240,172.31L240,787.69Q240,792.31 243.85,796.15Q247.69,800 252.31,800L707.69,800Q712.31,800 716.15,796.15Q720,792.31 720,787.69L720,340L540,340ZM240,160L240,160L240,340L240,340L240,160L240,340L240,340L240,787.69Q240,792.31 240,796.15Q240,800 240,800L240,800Q240,800 240,796.15Q240,792.31 240,787.69L240,172.31Q240,167.69 240,163.85Q240,160 240,160Z"/>
+</vector>

source/src/main/java/one/nem/lacerta/source/database/LacertaDatabase.java

@@ -7,15 +7,21 @@ import androidx.room.RoomDatabase;
 import one.nem.lacerta.source.database.entity.TagEntity;
 import one.nem.lacerta.source.database.entity.DocumentEntity;
 import one.nem.lacerta.source.database.entity.LibraryEntity;
+import one.nem.lacerta.source.database.entity.VcsRevEntity;
+import one.nem.lacerta.source.database.entity.VcsLogEntity;
 
 // Daos
 import one.nem.lacerta.source.database.dao.TagDao;
 import one.nem.lacerta.source.database.dao.DocumentDao;
 import one.nem.lacerta.source.database.dao.LibraryDao;
+import one.nem.lacerta.source.database.dao.VcsRevDao;
+import one.nem.lacerta.source.database.dao.VcsLogDao;
 
-@Database(entities = {TagEntity.class, DocumentEntity.class, LibraryEntity.class}, version = 1)
+@Database(entities = {TagEntity.class, DocumentEntity.class, LibraryEntity.class, VcsRevEntity.class, VcsLogEntity.class}, version = 2)
 public abstract class LacertaDatabase extends RoomDatabase {
     public abstract TagDao tagDao();
     public abstract DocumentDao documentDao();
     public abstract LibraryDao libraryDao();
+    public abstract VcsRevDao vcsRevDao();
+    public abstract VcsLogDao vcsLogDao();
 }

source/src/main/java/one/nem/lacerta/source/database/LacertaDatabaseModule.java

@@ -20,6 +20,8 @@ public class LacertaDatabaseModule {
                 LacertaDatabase.class,
                 "lacerta.db")
                 .allowMainThreadQueries() // Debug
+                .fallbackToDestructiveMigration() // Debug Only: マイグレーションがない場合などにデータベースを再生成する
+                .fallbackToDestructiveMigrationOnDowngrade() // Debug Only: マイグレーションがない場合などにデータベースを再生成する
                 .build();
     }
 }

source/src/main/java/one/nem/lacerta/source/database/common/ArrayListConverter.java

@@ -5,7 +5,7 @@ import androidx.room.TypeConverter;
 import java.util.ArrayList;
 import java.util.Arrays;
 
-public class TagArrayListConverter {
+public class ArrayListConverter {
 
     @TypeConverter
     public static ArrayList<String> fromString(String value) {

source/src/main/java/one/nem/lacerta/source/database/dao/VcsLogDao.java

@@ -0,0 +1,39 @@
+package one.nem.lacerta.source.database.dao;
+
+import androidx.room.Dao;
+import androidx.room.Insert;
+import androidx.room.Query;
+
+import java.util.List;
+
+import one.nem.lacerta.source.database.entity.VcsLogEntity;
+
+@Dao
+public interface VcsLogDao {
+
+    // Select
+    @Query("SELECT * FROM vcs_log WHERE id = :id")
+    VcsLogEntity findById(String id);
+
+    @Query("SELECT * FROM vcs_log")
+    List<VcsLogEntity> findAll();
+
+    @Query("SELECT * FROM vcs_log WHERE id IN (:ids)")
+    List<VcsLogEntity> findByIds(List<String> ids);
+
+    @Query("SELECT * FROM vcs_log WHERE document_id = :documentId")
+    List<VcsLogEntity> findByDocumentId(String documentId);
+
+    // Insert
+
+    @Insert
+    void insertAll(VcsLogEntity... vcsLogs);
+
+    @Insert
+    void insertAll(List<VcsLogEntity> vcsLogs);
+
+    @Insert
+    void insert(VcsLogEntity vcsLog);
+
+    // TODO-rca: Update, Deleteが必要か検討
+}

source/src/main/java/one/nem/lacerta/source/database/dao/VcsRevDao.java

@@ -0,0 +1,44 @@
+package one.nem.lacerta.source.database.dao;
+
+import androidx.room.Dao;
+import androidx.room.Insert;
+import androidx.room.Query;
+
+import java.util.List;
+
+import one.nem.lacerta.source.database.entity.VcsRevEntity;
+
+@Dao
+public interface VcsRevDao {
+
+    // Select
+    @Query("SELECT * FROM vcs_rev WHERE id = :id")
+    VcsRevEntity findById(String id);
+
+    @Query("SELECT * FROM vcs_rev")
+    List<VcsRevEntity> findAll();
+
+    @Query("SELECT * FROM vcs_rev WHERE id IN (:ids)")
+    List<VcsRevEntity> findByIds(List<String> ids);
+
+    @Query("SELECT * FROM vcs_rev WHERE document_id = :documentId")
+    List<VcsRevEntity> findByDocumentId(String documentId);
+
+    @Query("SELECT * FROM vcs_rev WHERE document_id = :documentId ORDER BY created_at DESC LIMIT 1")
+    VcsRevEntity findLatestByDocumentId(String documentId);
+
+    @Query("SELECT * FROM vcs_rev WHERE document_id = :documentId AND branch_name = :branchName ORDER BY created_at DESC LIMIT 1")
+    VcsRevEntity findLatestByDocumentIdAndBranchName(String documentId, String branchName);
+
+    @Insert
+    void insertAll(VcsRevEntity... vcsRevs);
+
+    @Insert
+    void insertAll(List<VcsRevEntity> vcsRevs);
+
+    @Insert
+    void insert(VcsRevEntity vcsRev);
+
+    // TODO-rca: Update, Deleteが必要か検討
+
+}

source/src/main/java/one/nem/lacerta/source/database/entity/DocumentEntity.java

@@ -8,7 +8,6 @@ import androidx.room.TypeConverter;
 import androidx.room.TypeConverters;
 
 import one.nem.lacerta.source.database.common.DateTypeConverter;
-import one.nem.lacerta.source.database.common.TagArrayListConverter;
 import one.nem.lacerta.source.database.common.TagListConverter;
 
 import java.util.ArrayList;
@@ -40,4 +39,7 @@ public class DocumentEntity {
 
     @ColumnInfo(name = "tag_ids")
     public List<String> tagIds; // タグ
+
+    @ColumnInfo(name = "public_path")
+    public String publicPath; // 公開パス
 }

source/src/main/java/one/nem/lacerta/source/database/entity/LibraryEntity.java

@@ -16,10 +16,12 @@ public class LibraryEntity {
     @NonNull
     public String id; // ドキュメントID
 
-    @ColumnInfo(name = "root_path")
-    public String rootPath; // rootのパス
+    // TODO-rca: 廃止？
 
     @ColumnInfo(name = "path")
     public String path; // パス
 
+    @ColumnInfo(name = "root_path")
+    public String rootPath; // ルートパス
+
 }

source/src/main/java/one/nem/lacerta/source/database/entity/VcsLogEntity.java

@@ -0,0 +1,48 @@
+package one.nem.lacerta.source.database.entity;
+
+import androidx.annotation.NonNull;
+import androidx.room.ColumnInfo;
+import androidx.room.Entity;
+import androidx.room.PrimaryKey;
+import androidx.room.TypeConverters;
+
+import java.util.Date;
+
+import one.nem.lacerta.source.database.common.DateTypeConverter;
+
+@Entity(tableName = "vcs_log")
+@TypeConverters({DateTypeConverter.class})
+public class VcsLogEntity {
+
+    /**
+     * イベントID
+     */
+    @PrimaryKey
+    @ColumnInfo(name = "id")
+    @NonNull
+    public String id;
+
+    /**
+     * ドキュメントID
+     */
+    @ColumnInfo(name = "document_id")
+    public String documentId;
+
+    /**
+     * ブランチ名
+     */
+    @ColumnInfo(name = "branch_name")
+    public String branchName;
+
+    /**
+     * 発生日時
+     */
+    @ColumnInfo(name = "created_at")
+    public Date createdAt;
+
+    /**
+     * 発生アクション
+     */
+    @ColumnInfo(name = "action")
+    public String action;
+}

source/src/main/java/one/nem/lacerta/source/database/entity/VcsRevEntity.java

@@ -0,0 +1,58 @@
+package one.nem.lacerta.source.database.entity;
+
+import androidx.annotation.NonNull;
+import androidx.room.ColumnInfo;
+import androidx.room.Entity;
+import androidx.room.PrimaryKey;
+import androidx.room.TypeConverters;
+
+
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+
+import one.nem.lacerta.source.database.common.ArrayListConverter;
+import one.nem.lacerta.source.database.common.DateTypeConverter;
+
+@Entity(tableName = "vcs_rev")
+@TypeConverters({DateTypeConverter.class, ArrayListConverter.class})
+public class VcsRevEntity {
+
+    /**
+     * リビジョンID
+     */
+    @PrimaryKey
+    @ColumnInfo(name = "id")
+    @NonNull
+    public String id;
+
+    /**
+     * ドキュメントID
+     */
+    @ColumnInfo(name = "document_id")
+    public String documentId;
+
+    /**
+     * ブランチ名
+     */
+    @ColumnInfo(name = "branch_name")
+    public String branchName;
+
+    /**
+     * コミットメッセージ
+     */
+    @ColumnInfo(name = "commit_message")
+    public String commitMessage;
+
+    /**
+     * コミット日時
+     */
+    @ColumnInfo(name = "created_at")
+    public Date createdAt;
+
+    /**
+     * 含まれるLogのID
+     */
+    @ColumnInfo(name = "log_ids")
+    public ArrayList<String> logIds;
+}

utils/src/main/java/one/nem/lacerta/utils/LacertaLogger.java

@@ -11,6 +11,8 @@ public interface LacertaLogger {
     void trace(String tag, String message);
     void fatal(String tag, String message);
 
+    void e_code(String errorId);
+
     String buildKVMessage(KeyValueLog... logs);
     // With name
     String buildKVMessage(String name, KeyValueLog... logs);

utils/src/main/java/one/nem/lacerta/utils/impl/LacertaLoggerImpl.java

@@ -43,6 +43,11 @@ public class LacertaLoggerImpl implements LacertaLogger{
         Log.wtf(tag, message);
     }
 
+    @Override
+    public void e_code(String errorId) {
+        Log.e("ErrorReport", "An error occurred. Searchable error ID: " + errorId);
+    }
+
     @Override
     public String buildKVMessage(KeyValueLog... logs) {
         StringBuilder builder = new StringBuilder();

utils/src/main/java/one/nem/lacerta/utils/impl/XmlMetaParserImpl.java

@@ -41,7 +41,6 @@ public class XmlMetaParserImpl implements XmlMetaParser{
             for(int i = 0; i < rootElement.getElementsByTagName("pages").getLength(); i++) {
                 Element pageElement = (Element) rootElement.getElementsByTagName("page").item(i);
                 XmlMetaPageModel page = new XmlMetaPageModel();
-                page.setIndex(Integer.parseInt(pageElement.getElementsByTagName("index").item(0).getTextContent()));
                 page.setFilename(pageElement.getElementsByTagName("filename").item(0).getTextContent());
                 pages.add(page);
             }
@@ -73,7 +72,6 @@ public class XmlMetaParserImpl implements XmlMetaParser{
             Element pagesElement = document.createElement("pages");
             for(XmlMetaPageModel page : meta.getPages()) {
                 Element pageElement = document.createElement("page");
-                appendElement(document, pageElement, "index", String.valueOf(page.getIndex()));
                 appendElement(document, pageElement, "filename", page.getFilename());
                 pagesElement.appendChild(pageElement);
             }

vcs/.gitignore

@@ -0,0 +1 @@
+/build

vcs/build.gradle

@@ -0,0 +1,59 @@
+plugins {
+    alias(libs.plugins.com.android.library)
+}
+
+android {
+    namespace 'one.nem.lacerta.vcs'
+    compileSdk 34
+
+    defaultConfig {
+        minSdk 26
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+        consumerProguardFiles "consumer-rules.pro"
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+}
+
+dependencies {
+
+    implementation libs.androidx.appcompat
+    implementation libs.com.google.android.material
+    testImplementation libs.junit
+    androidTestImplementation libs.androidx.test.ext.junit
+    androidTestImplementation libs.androidx.test.espresso.core
+
+    // Hilt (DI)
+    implementation libs.com.google.dagger.hilt.android
+    annotationProcessor libs.com.google.dagger.hilt.compiler
+
+    implementation project(':model')
+    implementation project(':source')
+    implementation project(':utils')
+
+    // Jackson
+    // TODO-rca: バージョンカタログにうつす
+
+    // https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-core
+    implementation 'com.fasterxml.jackson.core:jackson-core:2.16.1'
+
+    // https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind
+    implementation 'com.fasterxml.jackson.core:jackson-databind:2.16.1'
+
+    // https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-annotations
+    implementation 'com.fasterxml.jackson.core:jackson-annotations:2.16.1'
+
+    // Room
+    implementation libs.androidx.room.runtime
+    annotationProcessor libs.androidx.room.compiler
+}

vcs/proguard-rules.pro

@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

vcs/src/androidTest/java/one/nem/lacerta/vcs/ExampleInstrumentedTest.java

@@ -0,0 +1,26 @@
+package one.nem.lacerta.vcs;
+
+import android.content.Context;
+
+import androidx.test.platform.app.InstrumentationRegistry;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
+        assertEquals("one.nem.lacerta.vcs.test", appContext.getPackageName());
+    }
+}

vcs/src/main/AndroidManifest.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+
+</manifest>

vcs/src/main/java/one/nem/lacerta/vcs/ActionType.java

@@ -0,0 +1,48 @@
+package one.nem.lacerta.vcs;
+
+public enum ActionType {
+
+    INSERT_PAGE("insert_page"),
+    UPDATE_PAGE("update_page"),
+    DELETE_PAGE("delete_page"),
+
+    // TODO-rca: 実装----------------------------------------
+    UPDATE_PAGE_ORDER("update_page_order"),
+    INSERT_PAGE_CONTENT("insert_page_content"),
+    UPDATE_PAGE_CONTENT("update_page_content"),
+    DELETE_PAGE_CONTENT("delete_page_content"),
+
+    CREATE_BRANCH("create_branch"),
+    DROP_BRANCH("drop_branch"),
+    REBASE_BRANCH("rebase_branch"),
+
+    // -----------------------------------------------------
+
+    CREATE_DOCUMENT("create_document"),
+    DROP_DOCUMENT("drop_document"),
+
+    // TODO-rca: 実装----------------------------------------
+    UPDATE_DOCUMENT_META("update_document_meta"),
+    // -----------------------------------------------------
+
+    OTHER("other");
+
+    private final String value;
+
+    ActionType(String value) {
+        this.value = value;
+    }
+
+    public String getValue() {
+        return value;
+    }
+
+    public static ActionType fromValue(String value) {
+        for (ActionType actionType : ActionType.values()) {
+            if (actionType.getValue().equals(value)) {
+                return actionType;
+            }
+        }
+        return ActionType.OTHER;
+    }
+}

vcs/src/main/java/one/nem/lacerta/vcs/LacertaVcs.java

@@ -0,0 +1,15 @@
+package one.nem.lacerta.vcs;
+
+public interface LacertaVcs {
+
+    // Actions
+    public void updatePage(int index, String fileName);
+
+    public void insertPage(int index, String fileName);
+
+    public void deletePage(int index);
+
+    // debug
+    public void printLog();
+
+}

vcs/src/main/java/one/nem/lacerta/vcs/factory/LacertaVcsFactory.java

@@ -0,0 +1,10 @@
+package one.nem.lacerta.vcs.factory;
+
+import dagger.assisted.AssistedFactory;
+import one.nem.lacerta.vcs.impl.LacertaVcsImpl;
+
+@AssistedFactory
+public interface LacertaVcsFactory {
+
+    LacertaVcsImpl create(String documentId);
+}

vcs/src/main/java/one/nem/lacerta/vcs/impl/LacertaVcsImpl.java

@@ -0,0 +1,62 @@
+package one.nem.lacerta.vcs.impl;
+
+import java.util.UUID;
+
+import javax.inject.Inject;
+
+import dagger.assisted.Assisted;
+import dagger.assisted.AssistedInject;
+import one.nem.lacerta.source.database.LacertaDatabase;
+import one.nem.lacerta.source.database.entity.VcsLogEntity;
+import one.nem.lacerta.utils.LacertaLogger;
+import one.nem.lacerta.vcs.LacertaVcs;
+
+public class LacertaVcsImpl implements LacertaVcs {
+
+    // TAG
+    private static final String TAG = LacertaVcsImpl.class.getSimpleName();
+
+    String documentId;
+
+    LacertaDatabase database;
+
+    LacertaLogger logger;
+
+    @AssistedInject
+    public LacertaVcsImpl(LacertaLogger logger, LacertaDatabase database, @Assisted String documentId) {
+        this.logger = logger;
+        this.database = database;
+        this.documentId = documentId;
+        logger.debug(TAG, "LacertaVcsImpl constructor");
+    }
+
+    @Override
+    public void updatePage(int index, String fileName) {
+
+    }
+
+    @Override
+    public void insertPage(int index, String fileName) {
+        logger.debug(TAG, "insertPage");
+        VcsLogEntity vcsLogEntity = new VcsLogEntity();
+        vcsLogEntity.id = UUID.randomUUID().toString();
+        vcsLogEntity.documentId = documentId;
+        vcsLogEntity.branchName = "master";
+        vcsLogEntity.createdAt = new java.util.Date();
+        vcsLogEntity.action = "placeholder";
+        database.vcsLogDao().insert(vcsLogEntity);
+    }
+
+    @Override
+    public void deletePage(int index) {
+
+    }
+
+    @Override
+    public void printLog() {
+        logger.debug(TAG, "printLog");
+        database.vcsLogDao().findAll().forEach(vcsLog -> {
+            logger.debug(TAG, vcsLog.id);
+        });
+    }
+}

vcs/src/main/java/one/nem/lacerta/vcs/internal/JsonUtils.java

@@ -0,0 +1,65 @@
+package one.nem.lacerta.vcs.internal;
+
+import android.provider.ContactsContract;
+
+import one.nem.lacerta.vcs.ActionType;
+import one.nem.lacerta.vcs.model.action.DeletePage;
+import one.nem.lacerta.vcs.model.action.InsertPage;
+import one.nem.lacerta.vcs.model.action.UpdatePage;
+import one.nem.lacerta.vcs.model.action.common.ActionBase;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+public class JsonUtils {
+
+    // TODO-rca: Injectionで実装しなおす
+
+    // Public methods
+
+    public static String toJson(Object object) {
+        ActionBase converted;
+        if (object == null) {
+            return null;
+        } else if (object instanceof ActionBase) {
+            ObjectMapper mapper = new ObjectMapper();
+            switch (((ActionBase) object).getActionType()) {
+                case INSERT_PAGE:
+                    converted = (InsertPage) object;
+                    break;
+                case UPDATE_PAGE:
+                    converted = (UpdatePage) object;
+                    break;
+                case DELETE_PAGE:
+                    converted = (DeletePage) object;
+                    break;
+                default:
+                    throw new IllegalArgumentException("Unknown action type");
+            }
+            try {
+                return mapper.writeValueAsString(converted);
+            } catch (Exception e) {
+                throw new RuntimeException(e);
+            }
+        }
+        throw new IllegalArgumentException("Unknown object type");
+    }
+
+    public static Object fromJson(String json, ActionType actionType) {
+        ObjectMapper mapper = new ObjectMapper();
+        try {
+            switch (actionType) {
+                case INSERT_PAGE:
+                    return mapper.readValue(json, InsertPage.class);
+                case UPDATE_PAGE:
+                    return mapper.readValue(json, UpdatePage.class);
+                case DELETE_PAGE:
+                    return mapper.readValue(json, DeletePage.class);
+                default:
+                    throw new IllegalArgumentException("Unknown action type");
+            }
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+}

vcs/src/main/java/one/nem/lacerta/vcs/model/action/DeletePage.java

@@ -0,0 +1,19 @@
+package one.nem.lacerta.vcs.model.action;
+
+import one.nem.lacerta.vcs.model.action.common.ActionBase;
+
+public class DeletePage extends ActionBase {
+
+        private int index;
+
+        public DeletePage() {
+        }
+
+        public DeletePage(int index) {
+            this.index = index;
+        }
+
+        public int getIndex() {
+            return index;
+        }
+}

vcs/src/main/java/one/nem/lacerta/vcs/model/action/InsertPage.java

@@ -0,0 +1,25 @@
+package one.nem.lacerta.vcs.model.action;
+
+import one.nem.lacerta.vcs.model.action.common.ActionBase;
+
+public class InsertPage extends ActionBase {
+
+    private int index;
+    private String fileName;
+
+    public InsertPage() {
+    }
+
+    public InsertPage(int index, String fileName) {
+        this.index = index;
+        this.fileName = fileName;
+    }
+
+    public int getIndex() {
+        return index;
+    }
+
+    public String getFileName() {
+        return fileName;
+    }
+}

vcs/src/main/java/one/nem/lacerta/vcs/model/action/UpdatePage.java

@@ -0,0 +1,25 @@
+package one.nem.lacerta.vcs.model.action;
+
+import one.nem.lacerta.vcs.model.action.common.ActionBase;
+
+public class UpdatePage extends ActionBase {
+
+    private int index;
+    private String fileName;
+
+    public UpdatePage() {
+    }
+
+    public UpdatePage(int index, String fileName) {
+        this.index = index;
+        this.fileName = fileName;
+    }
+
+    public int getIndex() {
+        return index;
+    }
+
+    public String getFileName() {
+        return fileName;
+    }
+}

vcs/src/main/java/one/nem/lacerta/vcs/model/action/common/ActionBase.java

@@ -0,0 +1,22 @@
+package one.nem.lacerta.vcs.model.action.common;
+
+import one.nem.lacerta.vcs.ActionType;
+
+public class ActionBase {
+    private ActionType actionType;
+
+    public ActionBase() {
+    }
+
+    public ActionBase(ActionType actionType) {
+        this.actionType = actionType;
+    }
+
+    public ActionType getActionType() {
+        return actionType;
+    }
+
+    public void setActionType(ActionType actionType) {
+        this.actionType = actionType;
+    }
+}

vcs/src/test/java/one/nem/lacerta/vcs/ExampleUnitTest.java

@@ -0,0 +1,17 @@
+package one.nem.lacerta.vcs;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+public class ExampleUnitTest {
+    @Test
+    public void addition_isCorrect() {
+        assertEquals(4, 2 + 2);
+    }
+}