Make FileStorage a NoteRepository

lib/file_storage.dart

@@ -2,6 +2,7 @@ import 'dart:async';
 import 'dart:io';
 
 import 'package:flutter/foundation.dart';
+import 'package:journal/notes_repository.dart';
 import 'package:journal/serializers.dart';
 import 'package:path/path.dart' as p;
 
@@ -9,7 +10,7 @@ import './note.dart';
 
 typedef String NoteFileNameGenerator(Note note);
 
-class FileStorage {
+class FileStorage implements NoteRepository {
   final Future<Directory> Function() getDirectory;
   final NoteSerializer noteSerializer;
   final NoteFileNameGenerator fileNameGenerator;
@@ -20,7 +21,8 @@ class FileStorage {
     @required this.fileNameGenerator,
   });
 
-  Future<List<Note>> loadNotes() async {
+  @override
+  Future<List<Note>> listNotes() async {
     final dir = await getDirectory();
 
     var notes = new List<Note>();
@@ -44,22 +46,7 @@ class FileStorage {
     return noteSerializer.decode(string);
   }
 
-  Future<Directory> saveNotes(List<Note> notes) async {
-    final dir = await getDirectory();
-    await dir.delete(recursive: true);
-    await dir.create();
-
-    for (var note in notes) {
-      var filePath = p.join(dir.path, fileNameGenerator(note));
-
-      var file = new File(filePath);
-      var contents = noteSerializer.encode(note);
-      await file.writeAsString(contents);
-    }
-
-    return dir;
-  }
-
+  @override
   Future<bool> addNote(Note note) async {
     final dir = await getDirectory();
     var filePath = p.join(dir.path, fileNameGenerator(note));
@@ -71,6 +58,7 @@ class FileStorage {
     return true;
   }
 
+  @override
   Future<bool> removeNote(Note note) async {
     final dir = await getDirectory();
     var filePath = p.join(dir.path, fileNameGenerator(note));
@@ -80,4 +68,14 @@ class FileStorage {
 
     return true;
   }
+
+  @override
+  Future<bool> updateNote(Note note) async {
+    return addNote(note);
+  }
+
+  @override
+  Future<bool> sync() async {
+    return false;
+  }
 }

lib/notes_repository.dart

@@ -0,0 +1,76 @@
+import 'dart:async';
+import 'dart:io';
+
+import 'package:flutter/foundation.dart';
+
+import 'package:journal/file_storage.dart';
+import 'package:journal/note.dart';
+import 'package:journal/serializers.dart';
+
+import 'package:path_provider/path_provider.dart';
+import 'package:path/path.dart' as p;
+
+abstract class NoteRepository {
+  // Syncs the repo
+  // - git pull with an auto merge
+  // - git push
+
+  // TODO: Better error message!
+  Future<bool> sync();
+
+  Future<bool> addNote(Note note);
+  Future<bool> updateNote(Note note);
+  Future<bool> removeNote(Note note);
+
+  Future<List<Note>> listNotes();
+}
+
+Future<Directory> getNotesDir() async {
+  var appDir = await getApplicationDocumentsDirectory();
+  var dir = new Directory(p.join(appDir.path, "notes"));
+  await dir.create();
+
+  return dir;
+}
+
+class GitNoteRepository implements NoteRepository {
+  FileStorage _fileStorage = new FileStorage(
+    getDirectory: getNotesDir,
+    noteSerializer: new MarkdownYAMLSerializer(),
+    fileNameGenerator: (Note note) => note.id,
+  );
+  final String gitUrl;
+  final String dirPath;
+
+  GitNoteRepository({
+    @required this.gitUrl,
+    @required this.dirPath,
+  }) {
+    // FIXME: This isn't correct. The gitUrl might not be cloned at this point!
+  }
+
+  @override
+  Future<bool> addNote(Note note) async {
+    return _fileStorage.addNote(note);
+  }
+
+  @override
+  Future<List<Note>> listNotes() {
+    return _fileStorage.listNotes();
+  }
+
+  @override
+  Future<bool> removeNote(Note note) async {
+    return _fileStorage.removeNote(note);
+  }
+
+  @override
+  Future<bool> sync() async {
+    return false;
+  }
+
+  @override
+  Future<bool> updateNote(Note note) async {
+    return _fileStorage.updateNote(note);
+  }
+}

lib/state_container.dart

@@ -3,6 +3,7 @@ import 'dart:io';
 
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
+import 'package:journal/notes_repository.dart';
 import 'package:journal/serializers.dart';
 import 'package:path_provider/path_provider.dart';
 import 'package:path/path.dart' as p;
@@ -40,7 +41,7 @@ class StateContainer extends StatefulWidget {
 
 class StateContainerState extends State<StateContainer> {
   AppState appState = AppState.loading();
-  FileStorage fileStorage = new FileStorage(
+  NoteRepository noteRepo = new FileStorage(
     getDirectory: getNotesDir,
     noteSerializer: new MarkdownYAMLSerializer(),
     fileNameGenerator: (Note note) => note.id,
@@ -50,7 +51,7 @@ class StateContainerState extends State<StateContainer> {
   void initState() {
     super.initState();
 
-    fileStorage.loadNotes().then((loadedNotes) {
+    noteRepo.listNotes().then((loadedNotes) {
       setState(() {
         appState = AppState(notes: loadedNotes);
       });
@@ -67,21 +68,21 @@ class StateContainerState extends State<StateContainer> {
     setState(() {
       note.id = new Uuid().v4();
       appState.notes.insert(0, note);
-      fileStorage.addNote(note);
+      noteRepo.addNote(note);
     });
   }
 
   void removeNote(Note note) {
     setState(() {
       appState.notes.remove(note);
-      fileStorage.removeNote(note);
+      noteRepo.removeNote(note);
     });
   }
 
   void insertNote(int index, Note note) {
     setState(() {
       appState.notes.insert(index, note);
-      fileStorage.addNote(note);
+      noteRepo.addNote(note);
     });
   }