Refactor note handling to include ID generation and improve initialization logic

lib/main.dart

@@ -66,7 +66,8 @@ Future<void> runPrimaryInstance(File ipcFile) async {
   startIpcWatcher(ipcFile);
 
   // Initialize the app
-  await DB.init();
+  // await DB.init();
+  await init();
   await windowManager.ensureInitialized();
 
   WindowOptions windowOptions = const WindowOptions(

lib/meilisearch.dart

@@ -1,5 +1,6 @@
 import 'dart:convert';
 import 'dart:core';
+import 'dart:math';
 import 'package:http/http.dart' as http;
 import 'package:journaler/notes.dart';
 
@@ -7,7 +8,15 @@ const endpoint = 'https://meili.site.quack-lab.dev/';
 const noteIndex = 'notes';
 const scratchIndex = 'scratch';
 const settingsIndex = 'settings';
-const apiKey = String.fromEnvironment('MEILISEARCH_API_KEY', defaultValue: '');
+const apiKey = String.fromEnvironment(
+  'MEILISEARCH_API_KEY',
+  defaultValue:
+      '',
+);
+const header = {
+  'Authorization': 'Bearer $apiKey',
+  'Content-Type': 'application/json',
+};
 
 class MeilisearchQuery {
   String q;
@@ -82,12 +91,60 @@ class MeilisearchResponse {
   }
 }
 
+Future<void> init() async {
+  if (!await indexExists(noteIndex)) {
+    await http.post(
+      Uri.parse('$endpoint/indexes'),
+      headers: header,
+      body: jsonEncode({'uid': noteIndex, 'primaryKey': 'id'}),
+    );
+    await http.put(
+      Uri.parse('$endpoint/indexes/$noteIndex/settings/sortable-attributes'),
+      headers: header,
+      body: jsonEncode({
+        'attributes': ['date'],
+      }),
+    );
+  }
+
+  if (!await indexExists(scratchIndex)) {
+    await http.post(
+      Uri.parse('$endpoint/indexes'),
+      headers: header,
+      body: jsonEncode({'uid': scratchIndex, 'primaryKey': 'id'}),
+    );
+    await http.put(
+      Uri.parse('$endpoint/indexes/$scratchIndex/settings/sortable-attributes'),
+      headers: header,
+      body: jsonEncode({
+        'attributes': ['date'],
+      }),
+    );
+  }
+
+  if (!await indexExists(settingsIndex)) {
+    await http.post(
+      Uri.parse('$endpoint/indexes'),
+      headers: header,
+      body: jsonEncode({'uid': settingsIndex, 'primaryKey': 'key'}),
+    );
+  }
+}
+
+Future<bool> indexExists(String index) async {
+  final response = await http.get(
+    Uri.parse('$endpoint/indexes/$index'),
+    headers: header,
+  );
+  return response.statusCode == 200;
+}
+
 // Settings Management
 Future<String?> getSetting(String key) async {
   final searchCondition = MeilisearchQuery(q: '', filter: 'key = $key');
   final response = await http.post(
     Uri.parse('$endpoint/indexes/$settingsIndex/search'),
-    headers: {'Authorization': 'Bearer $apiKey'},
+    headers: header,
     body: jsonEncode(searchCondition.toJson()),
   );
   if (response.statusCode != 200) {
@@ -104,7 +161,7 @@ Future<void> setSetting(String key, String value) async {
   final document = {'key': key, 'value': value};
   final response = await http.post(
     Uri.parse('$endpoint/indexes/$settingsIndex/documents'),
-    headers: {'Authorization': 'Bearer $apiKey'},
+    headers: header,
     body: jsonEncode(document),
   );
   if (response.statusCode != 200) {
@@ -125,7 +182,7 @@ Future<List<Note>> searchNotes(String query) async {
   );
   final response = await http.post(
     Uri.parse('$endpoint/indexes/$noteIndex/search'),
-    headers: {'Authorization': 'Bearer $apiKey'},
+    headers: header,
     body: jsonEncode(searchCondition.toJson()),
   );
   if (response.statusCode != 200) {
@@ -135,6 +192,7 @@ Future<List<Note>> searchNotes(String query) async {
   return responseJson.hits
       .map(
         (hit) => Note(
+          id: hit['id'] as String,
           date: hit['date'] as String,
           content: hit['content'] as String,
         ),
@@ -151,7 +209,7 @@ Future<Note?> getPreviousTo(String date) async {
   );
   final response = await http.post(
     Uri.parse('$endpoint/indexes/$noteIndex/search'),
-    headers: {'Authorization': 'Bearer $apiKey'},
+    headers: header,
     body: jsonEncode(searchCondition.toJson()),
   );
   if (response.statusCode != 200) {
@@ -162,6 +220,7 @@ Future<Note?> getPreviousTo(String date) async {
     return null;
   }
   return Note(
+    id: responseJson.hits.first['id'] as String,
     date: responseJson.hits.first['date'] as String,
     content: responseJson.hits.first['content'] as String,
   );
@@ -176,7 +235,7 @@ Future<Note?> getNextTo(String date) async {
   );
   final response = await http.post(
     Uri.parse('$endpoint/indexes/$noteIndex/search'),
-    headers: {'Authorization': 'Bearer $apiKey'},
+    headers: header,
     body: jsonEncode(searchCondition.toJson()),
   );
   if (response.statusCode != 200) {
@@ -187,6 +246,7 @@ Future<Note?> getNextTo(String date) async {
     return null;
   }
   return Note(
+    id: responseJson.hits.first['id'] as String,
     date: responseJson.hits.first['date'] as String,
     content: responseJson.hits.first['content'] as String,
   );
@@ -195,12 +255,12 @@ Future<Note?> getNextTo(String date) async {
 Future<Note?> getLatest() async {
   final searchCondition = MeilisearchQuery(
     q: '',
-    sort: ['date DESC'],
+    sort: ['date:desc'],
     limit: 1,
   );
   final response = await http.post(
     Uri.parse('$endpoint/indexes/$noteIndex/search'),
-    headers: {'Authorization': 'Bearer $apiKey'},
+    headers: header,
     body: jsonEncode(searchCondition.toJson()),
   );
   if (response.statusCode != 200) {
@@ -211,11 +271,23 @@ Future<Note?> getLatest() async {
     return null;
   }
   return Note(
+    id: responseJson.hits.first['id'] as String,
     date: responseJson.hits.first['date'] as String,
     content: responseJson.hits.first['content'] as String,
   );
 }
 
+String generateRandomString(int length) {
+  const characters =
+      'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
+  var result = '';
+  for (var i = 0; i < length; i++) {
+    final randomIndex = Random().nextInt(characters.length);
+    result += characters[randomIndex];
+  }
+  return result;
+}
+
 Future<Note> createNote(String content) async {
   final lines = content.split('\n');
   final trimmedLines = <String>[];
@@ -238,20 +310,22 @@ Future<Note> createNote(String content) async {
   final mostFrequentLetterCount = letterFrequency[mostFrequentLetter];
 
   final document = {
-    'id': DateTime.now().toIso8601String(),
+    'id': generateRandomString(32),
+    'date': DateTime.now().toIso8601String(),
     'content': content,
     'topLetter': mostFrequentLetter,
     'topLetterFrequency': mostFrequentLetterCount,
   };
   final response = await http.post(
     Uri.parse('$endpoint/indexes/$noteIndex/documents'),
-    headers: {'Authorization': 'Bearer $apiKey'},
+    headers: header,
     body: jsonEncode(document),
   );
   if (response.statusCode != 200) {
     throw Exception('Failed to create note');
   }
   return Note(
+    id: document['id'] as String,
     date: document['id'] as String,
     content: document['content'] as String,
   );
@@ -264,7 +338,7 @@ Future<List<Note>> getProblematic({double threshold = 0.7}) async {
   );
   final response = await http.post(
     Uri.parse('$endpoint/indexes/$noteIndex/search'),
-    headers: {'Authorization': 'Bearer $apiKey'},
+    headers: header,
     body: jsonEncode(searchCondition.toJson()),
   );
   if (response.statusCode != 200) {
@@ -274,6 +348,7 @@ Future<List<Note>> getProblematic({double threshold = 0.7}) async {
   return responseJson.hits
       .map(
         (hit) => Note(
+          id: hit['id'] as String,
           date: hit['date'] as String,
           content: hit['content'] as String,
           isProblematic: true,
@@ -285,10 +360,11 @@ Future<List<Note>> getProblematic({double threshold = 0.7}) async {
 }
 
 Future<void> updateNote(String id, String content) async {
+  // TODO: Trim and calculate frequency
   final document = {'id': id, 'content': content};
   final response = await http.post(
     Uri.parse('$endpoint/indexes/$noteIndex/documents'),
-    headers: {'Authorization': 'Bearer $apiKey'},
+    headers: header,
     body: jsonEncode(document),
   );
   if (response.statusCode != 200) {
@@ -299,7 +375,7 @@ Future<void> updateNote(String id, String content) async {
 Future<void> deleteNote(String id) async {
   final response = await http.delete(
     Uri.parse('$endpoint/indexes/$noteIndex/documents/$id'),
-    headers: {'Authorization': 'Bearer $apiKey'},
+    headers: header,
   );
   if (response.statusCode != 200) {
     throw Exception('Failed to delete note');
@@ -314,7 +390,7 @@ Future<Scratch?> getLatestScratch() async {
   );
   final response = await http.post(
     Uri.parse('$endpoint/indexes/$scratchIndex/search'),
-    headers: {'Authorization': 'Bearer $apiKey'},
+    headers: header,
     body: jsonEncode(searchCondition.toJson()),
   );
   if (response.statusCode != 200) {
@@ -334,7 +410,7 @@ Future<void> createScratch(String content) async {
   final document = {'id': DateTime.now().toIso8601String(), 'content': content};
   final response = await http.post(
     Uri.parse('$endpoint/indexes/$scratchIndex/documents'),
-    headers: {'Authorization': 'Bearer $apiKey'},
+    headers: header,
     body: jsonEncode(document),
   );
   if (response.statusCode != 200) {

lib/notes.dart

@@ -1,6 +1,7 @@
 import 'package:intl/intl.dart';
 
 class Note {
+  final String id;
   final String date;
   late final String displayDate;
   String content;
@@ -9,6 +10,7 @@ class Note {
   String problemReason;
 
   Note({
+    required this.id,
     required this.date,
     required this.content,
     this.snippet,