Implement loading meilisearch config from disk

Encrypted such as it is

README.md

@@ -15,6 +15,10 @@ Journaler helps you build a consistent journaling habit by periodically remindin
 
 ![Journaler Screenshot](docs/screenshots/journaler_main.png)
 
+## Note
+
+**Versions up to 3 use a local sqlite database while versions 4 and above use meillisearch!**
+
 ## Features
 
 - **Automated Reminders**: Customizable popup intervals to remind you to journal

lib/meilisearch.dart

@@ -3,22 +3,25 @@ import 'dart:core';
 import 'dart:math';
 import 'package:http/http.dart' as http;
 import 'package:journaler/notes.dart';
+import 'package:journaler/meilisearch_config.dart';
 
-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 header = {
-  'Authorization': 'Bearer $apiKey',
-  'Content-Type': 'application/json',
-};
 final alphanum = RegExp(r'[a-zA-Z0-9]', caseSensitive: false);
 
+Future<Map<String, String>> _getHeaders() async {
+  final apiKey = await getMeilisearchApiKey();
+  return {
+    'Authorization': 'Bearer $apiKey',
+    'Content-Type': 'application/json',
+  };
+}
+
+Future<String> _getEndpoint() async {
+  return await getMeilisearchEndpoint();
+}
+
 class MeilisearchQuery {
   String q;
   String? filter;
@@ -93,65 +96,72 @@ class MeilisearchResponse {
 }
 
 Future<void> init() async {
+  final endpoint = await _getEndpoint();
+  final headers = await _getHeaders();
+
   if (!await indexExists(noteIndex)) {
     await http.post(
       Uri.parse('$endpoint/indexes'),
-      headers: header,
+      headers: headers,
       body: jsonEncode({'uid': noteIndex, 'primaryKey': 'id'}),
     );
   }
   await http.put(
     Uri.parse('$endpoint/indexes/$noteIndex/settings/sortable-attributes'),
-    headers: header,
+    headers: headers,
     body: jsonEncode(['date']),
   );
   await http.put(
     Uri.parse('$endpoint/indexes/$noteIndex/settings/filterable-attributes'),
-    headers: header,
+    headers: headers,
     body: jsonEncode(['date', 'topLetter', 'topLetterFrequency']),
   );
 
   if (!await indexExists(scratchIndex)) {
     await http.post(
       Uri.parse('$endpoint/indexes'),
-      headers: header,
+      headers: headers,
       body: jsonEncode({'uid': scratchIndex, 'primaryKey': 'id'}),
     );
   }
   await http.put(
     Uri.parse('$endpoint/indexes/$scratchIndex/settings/sortable-attributes'),
-    headers: header,
+    headers: headers,
     body: jsonEncode(['date']),
   );
   await http.put(
     Uri.parse('$endpoint/indexes/$scratchIndex/settings/filterable-attributes'),
-    headers: header,
+    headers: headers,
     body: jsonEncode(['date']),
   );
 
   if (!await indexExists(settingsIndex)) {
     await http.post(
       Uri.parse('$endpoint/indexes'),
-      headers: header,
+      headers: headers,
       body: jsonEncode({'uid': settingsIndex, 'primaryKey': 'key'}),
     );
   }
 }
 
 Future<bool> indexExists(String index) async {
+  final endpoint = await _getEndpoint();
+  final headers = await _getHeaders();
   final response = await http.get(
     Uri.parse('$endpoint/indexes/$index'),
-    headers: header,
+    headers: headers,
   );
   return response.statusCode == 200;
 }
 
 // Settings Management
 Future<String?> getSetting(String key) async {
+  final endpoint = await _getEndpoint();
+  final headers = await _getHeaders();
   final searchCondition = MeilisearchQuery(q: '', filter: 'key = $key');
   final response = await http.post(
     Uri.parse('$endpoint/indexes/$settingsIndex/search'),
-    headers: header,
+    headers: headers,
     body: jsonEncode(searchCondition.toJson()),
   );
   if (response.statusCode != 200) {
@@ -165,10 +175,12 @@ Future<String?> getSetting(String key) async {
 }
 
 Future<void> setSetting(String key, String value) async {
+  final endpoint = await _getEndpoint();
+  final headers = await _getHeaders();
   final document = {'key': key, 'value': value};
   final response = await http.post(
     Uri.parse('$endpoint/indexes/$settingsIndex/documents'),
-    headers: header,
+    headers: headers,
     body: jsonEncode(document),
   );
   if (response.statusCode != 202) {
@@ -179,6 +191,8 @@ Future<void> setSetting(String key, String value) async {
 // Maybe we could factor a lot of this out into a separate function
 // But we don't care for now...
 Future<List<Note>> searchNotes(String query) async {
+  final endpoint = await _getEndpoint();
+  final headers = await _getHeaders();
   final searchCondition = MeilisearchQuery(
     q: query,
     limit: 10,
@@ -189,7 +203,7 @@ Future<List<Note>> searchNotes(String query) async {
   );
   final response = await http.post(
     Uri.parse('$endpoint/indexes/$noteIndex/search'),
-    headers: header,
+    headers: headers,
     body: jsonEncode(searchCondition.toJson()),
   );
   if (response.statusCode != 200) {
@@ -209,6 +223,8 @@ Future<List<Note>> searchNotes(String query) async {
 }
 
 Future<Note?> getPreviousTo(int epochTime) async {
+  final endpoint = await _getEndpoint();
+  final headers = await _getHeaders();
   final searchCondition = MeilisearchQuery(
     q: '',
     filter: 'date < $epochTime',
@@ -217,7 +233,7 @@ Future<Note?> getPreviousTo(int epochTime) async {
   );
   final response = await http.post(
     Uri.parse('$endpoint/indexes/$noteIndex/search'),
-    headers: header,
+    headers: headers,
     body: jsonEncode(searchCondition.toJson()),
   );
   if (response.statusCode != 200) {
@@ -237,6 +253,8 @@ Future<Note?> getPreviousTo(int epochTime) async {
 }
 
 Future<Note?> getNextTo(int epochTime) async {
+  final endpoint = await _getEndpoint();
+  final headers = await _getHeaders();
   final searchCondition = MeilisearchQuery(
     q: '',
     filter: 'date > $epochTime',
@@ -245,7 +263,7 @@ Future<Note?> getNextTo(int epochTime) async {
   );
   final response = await http.post(
     Uri.parse('$endpoint/indexes/$noteIndex/search'),
-    headers: header,
+    headers: headers,
     body: jsonEncode(searchCondition.toJson()),
   );
   if (response.statusCode != 200) {
@@ -265,6 +283,8 @@ Future<Note?> getNextTo(int epochTime) async {
 }
 
 Future<Note?> getLatest() async {
+  final endpoint = await _getEndpoint();
+  final headers = await _getHeaders();
   final searchCondition = MeilisearchQuery(
     q: '',
     sort: ['date:desc'],
@@ -272,7 +292,7 @@ Future<Note?> getLatest() async {
   );
   final response = await http.post(
     Uri.parse('$endpoint/indexes/$noteIndex/search'),
-    headers: header,
+    headers: headers,
     body: jsonEncode(searchCondition.toJson()),
   );
   if (response.statusCode != 200) {
@@ -303,6 +323,8 @@ String generateRandomString(int length) {
 }
 
 Future<Note> createNote(String content) async {
+  final endpoint = await _getEndpoint();
+  final headers = await _getHeaders();
   final lines = content.split('\n');
   final trimmedLines = <String>[];
   for (final line in lines) {
@@ -334,7 +356,7 @@ Future<Note> createNote(String content) async {
   };
   final response = await http.post(
     Uri.parse('$endpoint/indexes/$noteIndex/documents'),
-    headers: header,
+    headers: headers,
     body: jsonEncode(document),
   );
   if (response.statusCode != 202) {
@@ -348,13 +370,15 @@ Future<Note> createNote(String content) async {
 }
 
 Future<List<Note>> getProblematic({double threshold = 0.7}) async {
+  final endpoint = await _getEndpoint();
+  final headers = await _getHeaders();
   final searchCondition = MeilisearchQuery(
     q: '',
     filter: 'topLetterFrequency > $threshold',
   );
   final response = await http.post(
     Uri.parse('$endpoint/indexes/$noteIndex/search'),
-    headers: header,
+    headers: headers,
     body: jsonEncode(searchCondition.toJson()),
   );
   if (response.statusCode != 200) {
@@ -380,6 +404,8 @@ Future<List<Note>> getProblematic({double threshold = 0.7}) async {
 // TODO: only update if changed
 // How? idk
 Future<void> updateNote(Note note) async {
+  final endpoint = await _getEndpoint();
+  final headers = await _getHeaders();
   final lines = note.content.split('\n');
   final trimmedLines = <String>[];
   for (final line in lines) {
@@ -413,7 +439,7 @@ Future<void> updateNote(Note note) async {
 
   final response = await http.post(
     Uri.parse('$endpoint/indexes/$noteIndex/documents'),
-    headers: header,
+    headers: headers,
     body: jsonEncode(document),
   );
   if (response.statusCode != 202) {
@@ -424,9 +450,11 @@ Future<void> updateNote(Note note) async {
 }
 
 Future<void> deleteNote(String id) async {
+  final endpoint = await _getEndpoint();
+  final headers = await _getHeaders();
   final response = await http.delete(
     Uri.parse('$endpoint/indexes/$noteIndex/documents/$id'),
-    headers: header,
+    headers: headers,
   );
   if (response.statusCode != 202) {
     throw Exception(
@@ -436,6 +464,8 @@ Future<void> deleteNote(String id) async {
 }
 
 Future<Scratch?> getLatestScratch() async {
+  final endpoint = await _getEndpoint();
+  final headers = await _getHeaders();
   final searchCondition = MeilisearchQuery(
     q: '',
     sort: ['date:desc'],
@@ -443,7 +473,7 @@ Future<Scratch?> getLatestScratch() async {
   );
   final response = await http.post(
     Uri.parse('$endpoint/indexes/$scratchIndex/search'),
-    headers: header,
+    headers: headers,
     body: jsonEncode(searchCondition.toJson()),
   );
   if (response.statusCode != 200) {
@@ -463,6 +493,8 @@ Future<Scratch?> getLatestScratch() async {
 }
 
 Future<Scratch> createScratch(String content) async {
+  final endpoint = await _getEndpoint();
+  final headers = await _getHeaders();
   final document = {
     'id': generateRandomString(32),
     'date': DateTime.now().toUtc().millisecondsSinceEpoch,
@@ -470,7 +502,7 @@ Future<Scratch> createScratch(String content) async {
   };
   final response = await http.post(
     Uri.parse('$endpoint/indexes/$scratchIndex/documents'),
-    headers: header,
+    headers: headers,
     body: jsonEncode(document),
   );
   if (response.statusCode != 202) {

lib/meilisearch_config.dart

@@ -0,0 +1,133 @@
+import 'dart:convert';
+import 'dart:io';
+import 'package:crypto/crypto.dart';
+import 'package:path/path.dart' as path;
+
+const defaultEndpoint = 'http://localhost:7700';
+const defaultApiKey = 'masterKey';
+
+// Cache for configuration
+String? _cachedEndpoint;
+String? _cachedApiKey;
+bool _isInitialized = false;
+
+// Get the config file path in the user's home directory
+Future<String> _getConfigPath() async {
+  final home =
+      Platform.environment['HOME'] ?? Platform.environment['USERPROFILE'];
+  if (home == null) {
+    throw Exception('Could not find home directory');
+  }
+  final configDir = Directory(path.join(home, '.journaler'));
+  if (!await configDir.exists()) {
+    await configDir.create(recursive: true);
+  }
+  return path.join(configDir.path, 'meilisearch_config.enc');
+}
+
+// Simple encryption key derived from machine-specific data
+String _getEncryptionKey() {
+  final machineId =
+      Platform.operatingSystem +
+      Platform.operatingSystemVersion +
+      Platform.localHostname;
+  return sha256.convert(utf8.encode(machineId)).toString();
+}
+
+// Encrypt data
+String _encrypt(String data) {
+  final key = _getEncryptionKey();
+  final bytes = utf8.encode(data);
+  final encrypted = <int>[];
+  for (var i = 0; i < bytes.length; i++) {
+    encrypted.add(bytes[i] ^ key.codeUnitAt(i % key.length));
+  }
+  return base64.encode(encrypted);
+}
+
+// Decrypt data
+String _decrypt(String encrypted) {
+  final key = _getEncryptionKey();
+  final bytes = base64.decode(encrypted);
+  final decrypted = <int>[];
+  for (var i = 0; i < bytes.length; i++) {
+    decrypted.add(bytes[i] ^ key.codeUnitAt(i % key.length));
+  }
+  return utf8.decode(decrypted);
+}
+
+// Initialize cache from file
+Future<void> _initializeCache() async {
+  if (_isInitialized) return;
+  
+  try {
+    final configPath = await _getConfigPath();
+    final file = File(configPath);
+    if (!await file.exists()) {
+      _cachedEndpoint = defaultEndpoint;
+      _cachedApiKey = defaultApiKey;
+      _isInitialized = true;
+      return;
+    }
+    
+    final encrypted = await file.readAsString();
+    final decrypted = _decrypt(encrypted);
+    final config = jsonDecode(decrypted);
+    
+    _cachedEndpoint = config['endpoint'] ?? defaultEndpoint;
+    _cachedApiKey = config['apiKey'] ?? defaultApiKey;
+  } catch (e) {
+    _cachedEndpoint = defaultEndpoint;
+    _cachedApiKey = defaultApiKey;
+  }
+  
+  _isInitialized = true;
+}
+
+Future<String> getMeilisearchEndpoint() async {
+  await _initializeCache();
+  return _cachedEndpoint!;
+}
+
+Future<String> getMeilisearchApiKey() async {
+  await _initializeCache();
+  return _cachedApiKey!;
+}
+
+Future<void> setMeilisearchEndpoint(String endpoint) async {
+  final configPath = await _getConfigPath();
+  final file = File(configPath);
+  
+  Map<String, dynamic> config = {};
+  if (await file.exists()) {
+    final encrypted = await file.readAsString();
+    final decrypted = _decrypt(encrypted);
+    config = jsonDecode(decrypted);
+  }
+  
+  config['endpoint'] = endpoint;
+  final encrypted = _encrypt(jsonEncode(config));
+  await file.writeAsString(encrypted);
+  
+  // Update cache
+  _cachedEndpoint = endpoint;
+}
+
+Future<void> setMeilisearchApiKey(String apiKey) async {
+  final configPath = await _getConfigPath();
+  final file = File(configPath);
+  
+  Map<String, dynamic> config = {};
+  if (await file.exists()) {
+    final encrypted = await file.readAsString();
+    final decrypted = _decrypt(encrypted);
+    config = jsonDecode(decrypted);
+  }
+  
+  config['apiKey'] = apiKey;
+  final encrypted = _encrypt(jsonEncode(config));
+  await file.writeAsString(encrypted);
+  
+  // Update cache
+  _cachedApiKey = apiKey;
+}

pubspec.lock

@@ -130,7 +130,7 @@ packages:
     source: hosted
     version: "1.19.1"
   crypto:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: crypto
       sha256: "1e445881f28f22d6140f181e07737b22f1e099a5e1ff94b0af2f9e4a463f4855"

pubspec.yaml

@@ -42,6 +42,7 @@ dependencies:
   ps_list: ^0.0.5
   intl: ^0.20.2
   http: ^1.4.0
+  crypto: ^3.0.3
 
 dev_dependencies:
   flutter_test: