From f530a52e9d267aae306b46dd6849d5c8deeb2137 Mon Sep 17 00:00:00 2001
From: Julian Mutter <julian.mutter@comumail.de>
Date: Wed, 18 Dec 2024 00:36:33 +0100
Subject: [PATCH] Work on implementing sheetable client

---
 lib/api.dart                                  | 206 ++++++++++
 lib/main.dart                                 |  71 ++--
 lib/sheet.dart                                |  87 ++--
 lib/sheetview.dart                            |  53 ++-
 macos/Flutter/GeneratedPluginRegistrant.swift |   6 +-
 pubspec.lock                                  | 370 +++++++++++++-----
 pubspec.yaml                                  |   5 +-
 web/index.html                                |  31 +-
 8 files changed, 620 insertions(+), 209 deletions(-)
 create mode 100644 lib/api.dart

diff --git a/lib/api.dart b/lib/api.dart
new file mode 100644
index 0000000..2a9d6f4
--- /dev/null
+++ b/lib/api.dart
@@ -0,0 +1,206 @@
+import 'dart:convert';
+import 'dart:io';
+
+import 'package:flutter/foundation.dart';
+import 'package:http/http.dart' as http;
+import 'package:path_provider/path_provider.dart'; // For cache storage
+import 'package:file/memory.dart';
+
+import 'sheet.dart';
+
+class ApiClient {
+  final String baseUrl =
+      'http://localhost:8080/api'; // Replace with your API base URL
+  String? _token; // Holds the JWT token after login
+
+  /// Checks if the user is authenticated
+  bool get isAuthenticated => _token != null;
+
+  /// Login and store the JWT token
+  Future<bool> login(String username, String password) async {
+    print("Logging in...");
+    try {
+      final url = '$baseUrl/login';
+      final response = await http.post(
+        Uri.parse(url),
+        headers: {'Content-Type': 'application/json'},
+        body: jsonEncode({
+          'email': username,
+          'password': password,
+        }),
+      );
+
+      if (response.statusCode == 200) {
+        _token = jsonDecode(response.body);
+        print('Login successful, token: $_token');
+        return true;
+      } else {
+        print('Login failed: ${response.statusCode}, ${response.body}');
+      }
+    } catch (e) {
+      print('Error during login: $e');
+    }
+    return false;
+  }
+
+  /// Logout and clear the token
+  void logout() {
+    _token = null;
+    print('Logged out successfully.');
+  }
+
+  /// Make a GET request
+  Future<http.Response?> get(String endpoint, {bool isBinary = false}) async {
+    try {
+      final url = '$baseUrl$endpoint';
+      final headers = {
+        'Authorization': 'Bearer $_token',
+        if (!isBinary) 'Content-Type': 'application/json',
+      };
+
+      final response = await http.get(Uri.parse(url), headers: headers);
+
+      if (response.statusCode == 200) {
+        return response;
+      } else {
+        print('GET request failed: ${response.statusCode} ${response.body}');
+      }
+    } catch (e) {
+      print('Error during GET request: $e');
+    }
+    return null;
+  }
+
+  /// Make a POST request
+  Future<http.Response?> post(
+      String endpoint, Map<String, dynamic> body) async {
+    try {
+      final url = '$baseUrl$endpoint';
+      final headers = {
+        'Authorization': 'Bearer $_token',
+        'Content-Type': 'application/json',
+      };
+
+      final response = await http.post(
+        Uri.parse(url),
+        headers: headers,
+        body: jsonEncode(body),
+      );
+
+      if (response.statusCode == 200 || response.statusCode == 201) {
+        return response;
+      } else {
+        print('POST request failed: ${response.statusCode} ${response.body}');
+      }
+    } catch (e) {
+      print('Error during POST request: $e');
+    }
+    return null;
+  }
+
+  /// Make a POST request with form data
+  Future<http.Response?> postFormData(String endpoint, String body) async {
+    try {
+      final url = '$baseUrl$endpoint';
+      final headers = {
+        'Authorization': 'Bearer $_token',
+        'Content-Type': 'application/x-www-form-urlencoded',
+      };
+
+      final response = await http.post(
+        Uri.parse(url),
+        headers: headers,
+        body: body,
+      );
+
+      if (response.statusCode == 200 || response.statusCode == 201) {
+        return response;
+      } else {
+        print(
+            'POST Form Data request failed: ${response.statusCode} ${response.body}');
+      }
+    } catch (e) {
+      print('Error during POST Form Data request: $e');
+    }
+    return null;
+  }
+
+  Future<List<Sheet>> fetchSheets({String sortBy = "last_opened desc"}) async {
+    try {
+      final bodyFormData = {
+        "page": 1,
+        "limit": "1000",
+        "sort_by": sortBy,
+      };
+
+      print("doing post...");
+      final response = await postFormData("/sheets", jsonEncode(bodyFormData));
+      print("got response...");
+
+      if (response == null) {
+        print("Empty reponse");
+        return List.empty();
+      }
+
+      if (response.statusCode == 200) {
+        final data = jsonDecode(response.body);
+        print("Data: $data");
+        return (data['rows'] as List<dynamic>)
+            .map((sheet) => Sheet.fromJson(sheet as Map<String, dynamic>))
+            .toList();
+      } else {
+        print('Failed to fetch sheets with status: ${response.statusCode}');
+        print('Response: ${response.body}');
+      }
+    } catch (e) {
+      print('Error during fetching sheets: $e');
+    }
+
+    return List.empty();
+  }
+
+  Future<File?> getPdfFileCached(String sheetUuid) async {
+    try {
+      // Get the cache directory
+
+      print("Creating cache dir...");
+      // final cacheDir = kIsWeb
+      //     ? await MemoryFileSystem().systemTempDirectory.createTemp('cache')
+      //     : await getTemporaryDirectory();
+      final cacheDir = await getTemporaryDirectory();
+      final cachedPdfPath = '${cacheDir.path}/$sheetUuid.pdf';
+
+      print("cache dir created");
+
+      // Check if the file already exists in the cache
+      final cachedFile = File(cachedPdfPath);
+
+      print("file created: $cachedFile");
+      if (await cachedFile.exists()) {
+        print("PDF found in cache: $cachedPdfPath");
+        return cachedFile;
+      }
+
+      // Make the authenticated API call
+
+      print("getting response");
+      final response = await this.get('/sheet/pdf/$sheetUuid', isBinary: true);
+
+      print("got response");
+      if (response != null && response.statusCode == 200) {
+        // Save the fetched file to the cache
+        //
+        print("writing file...: $cachedFile");
+        await cachedFile.writeAsBytes(response.bodyBytes);
+        print("PDF downloaded and cached at: $cachedPdfPath");
+        return cachedFile;
+      } else {
+        print("Failed to fetch PDF from API. Status: ${response?.statusCode}");
+      }
+    } catch (e) {
+      print("Error fetching PDF: $e");
+    }
+
+    return null;
+  }
+}
diff --git a/lib/main.dart b/lib/main.dart
index 60d94d8..3228db6 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -1,8 +1,9 @@
 import 'package:flutter/material.dart';
-import 'package:permission_handler/permission_handler.dart';
 import 'package:saf/saf.dart';
 import 'package:sheetless/sheetview.dart';
+import 'package:path_provider/path_provider.dart';
 
+import 'api.dart';
 import 'sheet.dart';
 
 void main() {
@@ -33,38 +34,53 @@ class MyHomePage extends StatefulWidget {
 }
 
 class _MyHomePageState extends State<MyHomePage> {
+  ApiClient apiClient = ApiClient();
+  Future<bool> apiLoggedIn = Future.value(false);
+
   @override
   void initState() {
     super.initState();
+    apiLoggedIn = apiClient.login("admin@admin.com", "sheetable");
   }
 
-  Future<String?> getSafPickedSheetsDirectory() async {
-    await Permission.storage.request();
-    await Permission.manageExternalStorage.request();
-    var pickedDirectories = await Saf.getPersistedPermissionDirectories();
-    if (pickedDirectories == null || pickedDirectories.isEmpty) {
-      return null;
-    }
-    return pickedDirectories.last;
-  }
+  // Future<String?> getSafPickedSheetsDirectory() async {
+  //   await Permission.storage.request();
+  //   await Permission.manageExternalStorage.request();
+  //   var pickedDirectories = await Saf.getPersistedPermissionDirectories();
+  //   if (pickedDirectories == null || pickedDirectories.isEmpty) {
+  //     return null;
+  //   }
+  //   return pickedDirectories.last;
+  // }
 
   Future<List<Sheet>> acquireSheets() async {
-    String? sheetsDirectory = await getSafPickedSheetsDirectory();
-    if (sheetsDirectory == null || sheetsDirectory.isEmpty) {
-      await Saf.getDynamicDirectoryPermission(grantWritePermission: false);
-      sheetsDirectory = await getSafPickedSheetsDirectory();
-      if (sheetsDirectory == null || sheetsDirectory.isEmpty) {
-        throw Exception("No Directory selected");
-      }
-    }
+    // await Permission.storage.request();
+    // await Permission.manageExternalStorage.request();
+    //
 
-    var sheetsDirectoryFiles = await Saf.getFilesPathFor(sheetsDirectory);
-    if (sheetsDirectoryFiles == null) {
-      await Saf.releasePersistedPermissions();
-      throw Exception(
-          "Permissions for directory no longer valid or Directory deleted. Please restart app.");
-    }
-    return loadSheetsSorted(sheetsDirectoryFiles);
+    await apiLoggedIn; // TODO: check if really logged in (returns bool)
+    return await apiClient.fetchSheets();
+    // return api.main();
+
+    // final directory = await getApplicationDocumentsDirectory();
+    // print("Directory is: $directory");
+    // String? sheetsDirectory = "/home/julian/Klavier";
+    // if (sheetsDirectory == null || sheetsDirectory.isEmpty) {
+    //   await Saf.getDynamicDirectoryPermission(grantWritePermission: false);
+    //   sheetsDirectory = "/home/julian/Klavier";
+    //   if (sheetsDirectory == null || sheetsDirectory.isEmpty) {
+    //     throw Exception("No Directory selected");
+    //   }
+    // }
+    // return List.empty();
+
+    // var sheetsDirectoryFiles = await Saf.getFilesPathFor(sheetsDirectory);
+    // if (sheetsDirectoryFiles == null) {
+    // await Saf.releasePersistedPermissions();
+    //   throw Exception(
+    //       "Permissions for directory no longer valid or Directory deleted. Please restart app.");
+    // }
+    // return loadSheetsSorted(sheetsDirectoryFiles);
   }
 
   @override
@@ -82,7 +98,10 @@ class _MyHomePageState extends State<MyHomePage> {
                 callback: (sheet) => Navigator.push(
                   context,
                   MaterialPageRoute(
-                    builder: (context) => SheetViewerPage(sheet: sheet),
+                    builder: (context) => SheetViewerPage(
+                      sheet: sheet,
+                      apiClient: apiClient,
+                    ),
                   ),
                 ),
               );
diff --git a/lib/sheet.dart b/lib/sheet.dart
index 19ca237..3815bc4 100644
--- a/lib/sheet.dart
+++ b/lib/sheet.dart
@@ -4,50 +4,53 @@ import 'package:flutter/material.dart';
 import 'package:path/path.dart' as p;
 
 class Sheet {
-  final String author;
+  final String uuid;
   final String name;
-  final String path;
+  final String composerUuid;
+  final DateTime releaseDate;
+  final String file;
+  final String fileHash;
+  final bool wasUploaded;
+  final int uploaderId;
+  final DateTime createdAt;
+  final DateTime updatedAt;
+  final DateTime lastOpened;
+  final List<String> tags;
+  final String informationText;
 
-  Sheet(this.author, this.name, this.path);
-}
+  Sheet({
+    required this.uuid,
+    required this.name,
+    required this.composerUuid,
+    required this.releaseDate,
+    required this.file,
+    required this.fileHash,
+    required this.wasUploaded,
+    required this.uploaderId,
+    required this.createdAt,
+    required this.updatedAt,
+    required this.lastOpened,
+    required this.tags,
+    required this.informationText,
+  });
 
-Future<List<Sheet>> loadSheetsSorted(List<String> sheetsDirectoryFiles) async {
-  var sheets = await _loadSheets(sheetsDirectoryFiles);
-  sheets.sort((left, right) => left.name.compareTo(right.name));
-  return sheets;
-}
-
-Future<List<Sheet>> _loadSheets(List<String> sheetsDirectoryFiles) async {
-  final List<Sheet> sheets = List.empty(growable: true);
-  var authorDirectories = sheetsDirectoryFiles
-      .map((e) => Directory(e))
-      .where((element) => element.existsSync());
-
-  for (Directory authorDirectory in authorDirectories) {
-    var authorName = p.basename(authorDirectory.path);
-    // Ignore hidden directories
-    if (authorName.startsWith(".")) {
-      continue;
-    }
-
-    await for (final FileSystemEntity sheetFile in authorDirectory.list()) {
-      if (sheetFile is File) {
-        var sheetName = p.basenameWithoutExtension(sheetFile.path);
-        // Ignore hidden files
-        if (sheetName.startsWith(".")) {
-          continue;
-        }
-        sheetName = sheetName.capitalize();
-        sheets.add(Sheet(authorName, sheetName, sheetFile.path));
-      }
-    }
-  }
-  return sheets;
-}
-
-extension StringExtension on String {
-  String capitalize() {
-    return "${this[0].toUpperCase()}${substring(1).toLowerCase()}";
+  // Factory constructor for creating a Sheet from JSON
+  factory Sheet.fromJson(Map<String, dynamic> json) {
+    return Sheet(
+      uuid: json['uuid'],
+      name: json['sheet_name'],
+      composerUuid: json['composer_uuid'],
+      releaseDate: DateTime.parse(json['release_date']),
+      file: json['file'],
+      fileHash: json['file_hash'],
+      wasUploaded: json['was_uploaded'],
+      uploaderId: json['uploader_id'],
+      createdAt: DateTime.parse(json['created_at']),
+      updatedAt: DateTime.parse(json['updated_at']),
+      lastOpened: DateTime.parse(json['last_opened']),
+      tags: List<String>.from(json['tags']),
+      informationText: json['information_text'],
+    );
   }
 }
 
@@ -65,7 +68,7 @@ class SheetsWidget extends StatelessWidget {
           var sheet = sheets[index];
           return ListTile(
             title: Text(sheet.name),
-            subtitle: Text(sheet.author),
+            subtitle: Text(sheet.uuid),
             onTap: () => callback(sheet),
           );
         });
diff --git a/lib/sheetview.dart b/lib/sheetview.dart
index 10c833f..f4370d5 100644
--- a/lib/sheetview.dart
+++ b/lib/sheetview.dart
@@ -1,36 +1,63 @@
 import 'package:flutter/material.dart';
 import 'package:pdfx/pdfx.dart';
+import 'package:sheetless/api.dart';
 import 'package:sheetless/sheet.dart';
 
 class SheetViewerPage extends StatefulWidget {
   final Sheet sheet;
+  final ApiClient apiClient;
 
-  const SheetViewerPage({super.key, required this.sheet});
+  const SheetViewerPage(
+      {super.key, required this.sheet, required this.apiClient});
 
   @override
   State<SheetViewerPage> createState() => _SheetViewerPageState();
 }
 
 class _SheetViewerPageState extends State<SheetViewerPage> {
-  PdfController? controller;
-
   @override
   void initState() {
-    controller =
-        PdfController(document: PdfDocument.openFile(widget.sheet.path));
     super.initState();
   }
 
+  Future<PdfController> loadPdf() async {
+    var file = await widget.apiClient.getPdfFileCached(widget.sheet.uuid);
+    if (file == null) {
+      throw Exception("Failed fetching pdf file");
+    }
+
+    return PdfController(document: PdfDocument.openFile(file.path));
+  }
+
   @override
   Widget build(BuildContext context) {
     return Scaffold(
-        appBar: AppBar(
-          title: Text(widget.sheet.name),
-        ),
-        body: PdfView(
-          controller: controller!,
-          pageSnapping: false,
-          scrollDirection: Axis.vertical,
-        ));
+      appBar: AppBar(
+        title: Text(widget.sheet.name),
+      ),
+      body: FutureBuilder(
+          future: loadPdf(),
+          builder:
+              (BuildContext context, AsyncSnapshot<PdfController> snapshot) {
+            if (snapshot.hasData) {
+              return PdfView(
+                controller: snapshot.data!,
+                pageSnapping: false,
+                scrollDirection: Axis.vertical,
+              );
+            } else if (snapshot.hasError) {
+              return Center(
+                  child: Text(
+                      style: Theme.of(context)
+                          .textTheme
+                          .displaySmall!
+                          .copyWith(color: Colors.red),
+                      textAlign: TextAlign.center,
+                      snapshot.error.toString()));
+            } else {
+              return const Center(child: CircularProgressIndicator());
+            }
+          }),
+    );
   }
 }
diff --git a/macos/Flutter/GeneratedPluginRegistrant.swift b/macos/Flutter/GeneratedPluginRegistrant.swift
index 0e67812..e689288 100644
--- a/macos/Flutter/GeneratedPluginRegistrant.swift
+++ b/macos/Flutter/GeneratedPluginRegistrant.swift
@@ -5,10 +5,14 @@
 import FlutterMacOS
 import Foundation
 
-import device_info_plus_macos
+import device_info_plus
+import path_provider_foundation
 import pdfx
+import sqflite_darwin
 
 func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
   DeviceInfoPlusMacosPlugin.register(with: registry.registrar(forPlugin: "DeviceInfoPlusMacosPlugin"))
+  PathProviderPlugin.register(with: registry.registrar(forPlugin: "PathProviderPlugin"))
   PdfxPlugin.register(with: registry.registrar(forPlugin: "PdfxPlugin"))
+  SqflitePlugin.register(with: registry.registrar(forPlugin: "SqflitePlugin"))
 }
diff --git a/pubspec.lock b/pubspec.lock
index 48f3c9f..60072ca 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -5,10 +5,10 @@ packages:
     dependency: transitive
     description:
       name: async
-      sha256: bfe67ef28df125b7dddcea62755991f807aa39a2492a23e1550161692950bbe0
+      sha256: "947bfcf187f74dbc5e146c9eb9c0f10c9f8b30743e341481c1e2ed3ecc18c20c"
       url: "https://pub.dev"
     source: hosted
-    version: "2.10.0"
+    version: "2.11.0"
   boolean_selector:
     dependency: transitive
     description:
@@ -21,10 +21,10 @@ packages:
     dependency: transitive
     description:
       name: characters
-      sha256: e6a326c8af69605aec75ed6c187d06b349707a27fbff8222ca9cc2cff167975c
+      sha256: "04a925763edad70e8443c99234dc3328f442e811f1d8fd1a72f1c8ad0f69a605"
       url: "https://pub.dev"
     source: hosted
-    version: "1.2.1"
+    version: "1.3.0"
   clock:
     dependency: transitive
     description:
@@ -37,82 +37,50 @@ packages:
     dependency: transitive
     description:
       name: collection
-      sha256: cfc915e6923fe5ce6e153b0723c753045de46de1b4d63771530504004a45fae0
+      sha256: ee67cb0715911d28db6bf4af1026078bd6f0128b07a5f66fb2ed94ec6783c09a
       url: "https://pub.dev"
     source: hosted
-    version: "1.17.0"
+    version: "1.18.0"
   crypto:
     dependency: transitive
     description:
       name: crypto
-      sha256: aa274aa7774f8964e4f4f38cc994db7b6158dd36e9187aaceaddc994b35c6c67
+      sha256: "1e445881f28f22d6140f181e07737b22f1e099a5e1ff94b0af2f9e4a463f4855"
       url: "https://pub.dev"
     source: hosted
-    version: "3.0.2"
+    version: "3.0.6"
   cupertino_icons:
     dependency: "direct main"
     description:
       name: cupertino_icons
-      sha256: e35129dc44c9118cee2a5603506d823bab99c68393879edb440e0090d07586be
+      sha256: ba631d1c7f7bef6b729a622b7b752645a2d076dba9976925b8f25725a30e1ee6
       url: "https://pub.dev"
     source: hosted
-    version: "1.0.5"
+    version: "1.0.8"
   device_info_plus:
     dependency: transitive
     description:
       name: device_info_plus
-      sha256: b809c4ed5f7fcdb325ccc70b80ad934677dc4e2aa414bf46859a42bfdfafcbb6
+      sha256: a7fd703482b391a87d60b6061d04dfdeab07826b96f9abd8f5ed98068acc0074
       url: "https://pub.dev"
     source: hosted
-    version: "4.1.3"
-  device_info_plus_linux:
-    dependency: transitive
-    description:
-      name: device_info_plus_linux
-      sha256: "77a8b3c4af06bc46507f89304d9f49dfc64b4ae004b994532ed23b34adeae4b3"
-      url: "https://pub.dev"
-    source: hosted
-    version: "3.0.0"
-  device_info_plus_macos:
-    dependency: transitive
-    description:
-      name: device_info_plus_macos
-      sha256: "37961762fbd46d3620c7b69ca606671014db55fc1b7a11e696fd90ed2e8fe03d"
-      url: "https://pub.dev"
-    source: hosted
-    version: "3.0.0"
+    version: "10.1.2"
   device_info_plus_platform_interface:
     dependency: transitive
     description:
       name: device_info_plus_platform_interface
-      sha256: "83fdba24fcf6846d3b10f10dfdc8b6c6d7ada5f8ed21d62ea2909c2dfa043773"
+      sha256: "0b04e02b30791224b31969eb1b50d723498f402971bff3630bca2ba839bd1ed2"
       url: "https://pub.dev"
     source: hosted
-    version: "3.0.0"
-  device_info_plus_web:
-    dependency: transitive
-    description:
-      name: device_info_plus_web
-      sha256: "5890f6094df108181c7a29720bc23d0fd6159f17d82787fac093d1fefcaf6325"
-      url: "https://pub.dev"
-    source: hosted
-    version: "3.0.0"
-  device_info_plus_windows:
-    dependency: transitive
-    description:
-      name: device_info_plus_windows
-      sha256: "23a2874af0e23ee6e3a2a0ebcecec3a9da13241f2cb93a93a44c8764df123dd7"
-      url: "https://pub.dev"
-    source: hosted
-    version: "4.1.0"
+    version: "7.0.2"
   extension:
     dependency: transitive
     description:
       name: extension
-      sha256: "7df1ee2de6ccd05fd3e4d63acb194ae97e6525a2e8da067161c0cccb6a0a5305"
+      sha256: be3a6b7f8adad2f6e2e8c63c895d19811fcf203e23466c6296267941d0ff4f24
       url: "https://pub.dev"
     source: hosted
-    version: "0.5.0"
+    version: "0.6.0"
   fake_async:
     dependency: transitive
     description:
@@ -125,31 +93,47 @@ packages:
     dependency: transitive
     description:
       name: ffi
-      sha256: a38574032c5f1dd06c4aee541789906c12ccaab8ba01446e800d9c5b79c4a978
+      sha256: "16ed7b077ef01ad6170a3d0c57caa4a112a38d7a2ed5602e0aca9ca6f3d98da6"
       url: "https://pub.dev"
     source: hosted
-    version: "2.0.1"
+    version: "2.1.3"
   file:
     dependency: transitive
     description:
       name: file
-      sha256: "1b92bec4fc2a72f59a8e15af5f52cd441e4a7860b49499d69dfa817af20e925d"
+      sha256: a3b4f84adafef897088c160faf7dfffb7696046cb13ae90b508c2cbc95d3b8d4
       url: "https://pub.dev"
     source: hosted
-    version: "6.1.4"
+    version: "7.0.1"
+  fixnum:
+    dependency: transitive
+    description:
+      name: fixnum
+      sha256: b6dc7065e46c974bc7c5f143080a6764ec7a4be6da1285ececdc37be96de53be
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.1"
   flutter:
     dependency: "direct main"
     description: flutter
     source: sdk
     version: "0.0.0"
+  flutter_cache_manager:
+    dependency: "direct main"
+    description:
+      name: flutter_cache_manager
+      sha256: "400b6592f16a4409a7f2bb929a9a7e38c72cceb8ffb99ee57bbf2cb2cecf8386"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.4.1"
   flutter_lints:
     dependency: "direct dev"
     description:
       name: flutter_lints
-      sha256: aeb0b80a8b3709709c9cc496cdc027c5b3216796bc0af0ce1007eaf24464fd4c
+      sha256: "5398f14efa795ffb7a33e9b6a08798b26a180edac4ad7db3f231e40f82ce11e1"
       url: "https://pub.dev"
     source: hosted
-    version: "2.0.1"
+    version: "5.0.0"
   flutter_test:
     dependency: "direct dev"
     description: flutter
@@ -160,118 +144,214 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
-  js:
-    dependency: transitive
+  http:
+    dependency: "direct main"
     description:
-      name: js
-      sha256: "5528c2f391ededb7775ec1daa69e65a2d61276f7552de2b5f7b8d34ee9fd4ab7"
+      name: http
+      sha256: b9c29a161230ee03d3ccf545097fccd9b87a5264228c5d348202e0f0c28f9010
       url: "https://pub.dev"
     source: hosted
-    version: "0.6.5"
+    version: "1.2.2"
+  http_parser:
+    dependency: transitive
+    description:
+      name: http_parser
+      sha256: "2aa08ce0341cc9b354a498388e30986515406668dbcc4f7c950c3e715496693b"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.0.2"
+  leak_tracker:
+    dependency: transitive
+    description:
+      name: leak_tracker
+      sha256: "3f87a60e8c63aecc975dda1ceedbc8f24de75f09e4856ea27daf8958f2f0ce05"
+      url: "https://pub.dev"
+    source: hosted
+    version: "10.0.5"
+  leak_tracker_flutter_testing:
+    dependency: transitive
+    description:
+      name: leak_tracker_flutter_testing
+      sha256: "932549fb305594d82d7183ecd9fa93463e9914e1b67cacc34bc40906594a1806"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.5"
+  leak_tracker_testing:
+    dependency: transitive
+    description:
+      name: leak_tracker_testing
+      sha256: "6ba465d5d76e67ddf503e1161d1f4a6bc42306f9d66ca1e8f079a47290fb06d3"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.1"
   lints:
     dependency: transitive
     description:
       name: lints
-      sha256: "5e4a9cd06d447758280a8ac2405101e0e2094d2a1dbdd3756aec3fe7775ba593"
+      sha256: "3315600f3fb3b135be672bf4a178c55f274bebe368325ae18462c89ac1e3b413"
       url: "https://pub.dev"
     source: hosted
-    version: "2.0.1"
+    version: "5.0.0"
   matcher:
     dependency: transitive
     description:
       name: matcher
-      sha256: "16db949ceee371e9b99d22f88fa3a73c4e59fd0afed0bd25fc336eb76c198b72"
+      sha256: d2323aa2060500f906aa31a895b4030b6da3ebdcc5619d14ce1aada65cd161cb
       url: "https://pub.dev"
     source: hosted
-    version: "0.12.13"
+    version: "0.12.16+1"
   material_color_utilities:
     dependency: transitive
     description:
       name: material_color_utilities
-      sha256: d92141dc6fe1dad30722f9aa826c7fbc896d021d792f80678280601aff8cf724
+      sha256: f7142bb1154231d7ea5f96bc7bde4bda2a0945d2806bb11670e30b850d56bdec
       url: "https://pub.dev"
     source: hosted
-    version: "0.2.0"
+    version: "0.11.1"
   meta:
     dependency: transitive
     description:
       name: meta
-      sha256: "6c268b42ed578a53088d834796959e4a1814b5e9e164f147f580a386e5decf42"
+      sha256: bdb68674043280c3428e9ec998512fb681678676b3c54e773629ffe74419f8c7
       url: "https://pub.dev"
     source: hosted
-    version: "1.8.0"
+    version: "1.15.0"
   path:
     dependency: "direct main"
     description:
       name: path
-      sha256: db9d4f58c908a4ba5953fcee2ae317c94889433e5024c27ce74a37f94267945b
+      sha256: "087ce49c3f0dc39180befefc60fdb4acd8f8620e5682fe2476afd0b3688bb4af"
       url: "https://pub.dev"
     source: hosted
-    version: "1.8.2"
+    version: "1.9.0"
+  path_provider:
+    dependency: "direct main"
+    description:
+      name: path_provider
+      sha256: "50c5dd5b6e1aaf6fb3a78b33f6aa3afca52bf903a8a5298f53101fdaee55bbcd"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.5"
+  path_provider_android:
+    dependency: transitive
+    description:
+      name: path_provider_android
+      sha256: "4adf4fd5423ec60a29506c76581bc05854c55e3a0b72d35bb28d661c9686edf2"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.15"
+  path_provider_foundation:
+    dependency: transitive
+    description:
+      name: path_provider_foundation
+      sha256: "4843174df4d288f5e29185bd6e72a6fbdf5a4a4602717eed565497429f179942"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.1"
+  path_provider_linux:
+    dependency: transitive
+    description:
+      name: path_provider_linux
+      sha256: f7a1fe3a634fe7734c8d3f2766ad746ae2a2884abe22e241a8b301bf5cac3279
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.1"
+  path_provider_platform_interface:
+    dependency: transitive
+    description:
+      name: path_provider_platform_interface
+      sha256: "88f5779f72ba699763fa3a3b06aa4bf6de76c8e5de842cf6f29e2e06476c2334"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.2"
+  path_provider_windows:
+    dependency: transitive
+    description:
+      name: path_provider_windows
+      sha256: bd6f00dbd873bfb70d0761682da2b3a2c2fccc2b9e84c495821639601d81afe7
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.3.0"
   pdfx:
     dependency: "direct main"
     description:
       name: pdfx
-      sha256: cad7eab6358a89922c8ea592b738891b3984edab43300558d25dc9b15a94a35e
+      sha256: cbbd7bf54d6f37524df85d06a816fa095d124cd32d42909effddc0027f9db10b
       url: "https://pub.dev"
     source: hosted
-    version: "2.3.0"
+    version: "2.8.0"
   permission_handler:
     dependency: "direct main"
     description:
       name: permission_handler
-      sha256: "33c6a1253d1f95fd06fa74b65b7ba907ae9811f9d5c1d3150e51417d04b8d6a8"
+      sha256: bc56bfe9d3f44c3c612d8d393bd9b174eb796d706759f9b495ac254e4294baa5
       url: "https://pub.dev"
     source: hosted
-    version: "10.2.0"
+    version: "10.4.5"
   permission_handler_android:
     dependency: transitive
     description:
       name: permission_handler_android
-      sha256: "8028362b40c4a45298f1cbfccd227c8dd6caf0e27088a69f2ba2ab15464159e2"
+      sha256: "59c6322171c29df93a22d150ad95f3aa19ed86542eaec409ab2691b8f35f9a47"
       url: "https://pub.dev"
     source: hosted
-    version: "10.2.0"
+    version: "10.3.6"
   permission_handler_apple:
     dependency: transitive
     description:
       name: permission_handler_apple
-      sha256: "9c370ef6a18b1c4b2f7f35944d644a56aa23576f23abee654cf73968de93f163"
+      sha256: "99e220bce3f8877c78e4ace901082fb29fa1b4ebde529ad0932d8d664b34f3f5"
       url: "https://pub.dev"
     source: hosted
-    version: "9.0.7"
+    version: "9.1.4"
   permission_handler_platform_interface:
     dependency: transitive
     description:
       name: permission_handler_platform_interface
-      sha256: "68abbc472002b5e6dfce47fe9898c6b7d8328d58b5d2524f75e277c07a97eb84"
+      sha256: "6760eb5ef34589224771010805bea6054ad28453906936f843a8cc4d3a55c4a4"
       url: "https://pub.dev"
     source: hosted
-    version: "3.9.0"
+    version: "3.12.0"
   permission_handler_windows:
     dependency: transitive
     description:
       name: permission_handler_windows
-      sha256: f67cab14b4328574938ecea2db3475dad7af7ead6afab6338772c5f88963e38b
+      sha256: cc074aace208760f1eee6aa4fae766b45d947df85bc831cde77009cdb4720098
       url: "https://pub.dev"
     source: hosted
-    version: "0.1.2"
+    version: "0.1.3"
   photo_view:
     dependency: transitive
     description:
       name: photo_view
-      sha256: "8036802a00bae2a78fc197af8a158e3e2f7b500561ed23b4c458107685e645bb"
+      sha256: "1fc3d970a91295fbd1364296575f854c9863f225505c28c46e0a03e48960c75e"
       url: "https://pub.dev"
     source: hosted
-    version: "0.14.0"
+    version: "0.15.0"
+  platform:
+    dependency: transitive
+    description:
+      name: platform
+      sha256: "5d6b1b0036a5f331ebc77c850ebc8506cbc1e9416c27e59b439f917a902a4984"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.6"
   plugin_platform_interface:
     dependency: transitive
     description:
       name: plugin_platform_interface
-      sha256: dbf0f707c78beedc9200146ad3cb0ab4d5da13c246336987be6940f026500d3a
+      sha256: "4820fbfdb9478b1ebae27888254d445073732dae3d6ea81f0b7e06d5dedc3f02"
       url: "https://pub.dev"
     source: hosted
-    version: "2.1.3"
+    version: "2.1.8"
+  rxdart:
+    dependency: transitive
+    description:
+      name: rxdart
+      sha256: "5c3004a4a8dbb94bd4bf5412a4def4acdaa12e12f269737a5751369e12d1a962"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.28.0"
   saf:
     dependency: "direct main"
     description:
@@ -289,26 +369,74 @@ packages:
     dependency: transitive
     description:
       name: source_span
-      sha256: dd904f795d4b4f3b870833847c461801f6750a9fa8e61ea5ac53f9422b31f250
+      sha256: "53e943d4206a5e30df338fd4c6e7a077e02254531b138a15aec3bd143c1a8b3c"
       url: "https://pub.dev"
     source: hosted
-    version: "1.9.1"
+    version: "1.10.0"
+  sprintf:
+    dependency: transitive
+    description:
+      name: sprintf
+      sha256: "1fc9ffe69d4df602376b52949af107d8f5703b77cda567c4d7d86a0693120f23"
+      url: "https://pub.dev"
+    source: hosted
+    version: "7.0.0"
+  sqflite:
+    dependency: transitive
+    description:
+      name: sqflite
+      sha256: "2d7299468485dca85efeeadf5d38986909c5eb0cd71fd3db2c2f000e6c9454bb"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.1"
+  sqflite_android:
+    dependency: transitive
+    description:
+      name: sqflite_android
+      sha256: "78f489aab276260cdd26676d2169446c7ecd3484bbd5fead4ca14f3ed4dd9ee3"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.0"
+  sqflite_common:
+    dependency: transitive
+    description:
+      name: sqflite_common
+      sha256: "761b9740ecbd4d3e66b8916d784e581861fd3c3553eda85e167bc49fdb68f709"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.5.4+6"
+  sqflite_darwin:
+    dependency: transitive
+    description:
+      name: sqflite_darwin
+      sha256: "96a698e2bc82bd770a4d6aab00b42396a7c63d9e33513a56945cbccb594c2474"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.1"
+  sqflite_platform_interface:
+    dependency: transitive
+    description:
+      name: sqflite_platform_interface
+      sha256: "8dd4515c7bdcae0a785b0062859336de775e8c65db81ae33dd5445f35be61920"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.0"
   stack_trace:
     dependency: transitive
     description:
       name: stack_trace
-      sha256: c3c7d8edb15bee7f0f74debd4b9c5f3c2ea86766fe4178eb2a18eb30a0bdaed5
+      sha256: "73713990125a6d93122541237550ee3352a2d84baad52d375a4cad2eb9b7ce0b"
       url: "https://pub.dev"
     source: hosted
-    version: "1.11.0"
+    version: "1.11.1"
   stream_channel:
     dependency: transitive
     description:
       name: stream_channel
-      sha256: "83615bee9045c1d322bbbd1ba209b7a749c2cbcdcb3fdd1df8eb488b3279c1c8"
+      sha256: ba2aa5d8cc609d96bbb2899c28934f9e1af5cddbd60a827822ea467161eb54e7
       url: "https://pub.dev"
     source: hosted
-    version: "2.1.1"
+    version: "2.1.2"
   string_scanner:
     dependency: transitive
     description:
@@ -321,10 +449,10 @@ packages:
     dependency: transitive
     description:
       name: synchronized
-      sha256: "33b31b6beb98100bf9add464a36a8dd03eb10c7a8cf15aeec535e9b054aaf04b"
+      sha256: "69fe30f3a8b04a0be0c15ae6490fc859a78ef4c43ae2dd5e8a623d45bfcf9225"
       url: "https://pub.dev"
     source: hosted
-    version: "3.0.1"
+    version: "3.3.0+3"
   term_glyph:
     dependency: transitive
     description:
@@ -337,34 +465,34 @@ packages:
     dependency: transitive
     description:
       name: test_api
-      sha256: ad540f65f92caa91bf21dfc8ffb8c589d6e4dc0c2267818b4cc2792857706206
+      sha256: "5b8a98dafc4d5c4c9c72d8b31ab2b23fc13422348d2997120294d3bac86b4ddb"
       url: "https://pub.dev"
     source: hosted
-    version: "0.4.16"
+    version: "0.7.2"
   typed_data:
     dependency: transitive
     description:
       name: typed_data
-      sha256: "26f87ade979c47a150c9eaab93ccd2bebe70a27dc0b4b29517f2904f04eb11a5"
+      sha256: f9049c039ebfeb4cf7a7104a675823cd72dba8297f264b6637062516699fa006
       url: "https://pub.dev"
     source: hosted
-    version: "1.3.1"
+    version: "1.4.0"
   universal_platform:
     dependency: transitive
     description:
       name: universal_platform
-      sha256: d315be0f6641898b280ffa34e2ddb14f3d12b1a37882557869646e0cc363d0cc
+      sha256: "64e16458a0ea9b99260ceb5467a214c1f298d647c659af1bff6d3bf82536b1ec"
       url: "https://pub.dev"
     source: hosted
-    version: "1.0.0+1"
+    version: "1.1.0"
   uuid:
     dependency: transitive
     description:
       name: uuid
-      sha256: "648e103079f7c64a36dc7d39369cabb358d377078a051d6ae2ad3aa539519313"
+      sha256: a5be9ef6618a7ac1e964353ef476418026db906c4facdedaa299b7a2e71690ff
       url: "https://pub.dev"
     source: hosted
-    version: "3.0.7"
+    version: "4.5.1"
   vector_math:
     dependency: transitive
     description:
@@ -373,14 +501,46 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.1.4"
+  vm_service:
+    dependency: transitive
+    description:
+      name: vm_service
+      sha256: "5c5f338a667b4c644744b661f309fb8080bb94b18a7e91ef1dbd343bed00ed6d"
+      url: "https://pub.dev"
+    source: hosted
+    version: "14.2.5"
+  web:
+    dependency: transitive
+    description:
+      name: web
+      sha256: cd3543bd5798f6ad290ea73d210f423502e71900302dde696f8bff84bf89a1cb
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.0"
   win32:
     dependency: transitive
     description:
       name: win32
-      sha256: c9ebe7ee4ab0c2194e65d3a07d8c54c5d00bb001b76081c4a04cdb8448b59e46
+      sha256: "8b338d4486ab3fbc0ba0db9f9b4f5239b6697fcee427939a40e720cbb9ee0a69"
       url: "https://pub.dev"
     source: hosted
-    version: "3.1.3"
+    version: "5.9.0"
+  win32_registry:
+    dependency: transitive
+    description:
+      name: win32_registry
+      sha256: "21ec76dfc731550fd3e2ce7a33a9ea90b828fdf19a5c3bcf556fa992cfa99852"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.5"
+  xdg_directories:
+    dependency: transitive
+    description:
+      name: xdg_directories
+      sha256: "7a3f37b05d989967cdddcbb571f1ea834867ae2faa29725fd085180e0883aa15"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.0"
 sdks:
-  dart: ">=2.19.2 <3.0.0"
-  flutter: ">=3.0.0"
+  dart: ">=3.5.0 <4.0.0"
+  flutter: ">=3.24.0"
diff --git a/pubspec.yaml b/pubspec.yaml
index ba9187c..c3db8fc 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -40,6 +40,9 @@ dependencies:
   pdfx: ^2.3.0
   saf: ^1.0.3+4
   permission_handler: ^10.2.0
+  http: ^1.2.2
+  path_provider: ^2.1.5
+  flutter_cache_manager: ^3.4.1
 
 dev_dependencies:
   flutter_test:
@@ -50,7 +53,7 @@ dev_dependencies:
   # activated in the `analysis_options.yaml` file located at the root of your
   # package. See that file for information about deactivating specific lint
   # rules and activating additional ones.
-  flutter_lints: ^2.0.0
+  flutter_lints: ^5.0.0
 
 # For information on the generic Dart part of this file, see the
 # following page: https://dart.dev/tools/pub/pubspec
diff --git a/web/index.html b/web/index.html
index ee4d315..d50d70c 100644
--- a/web/index.html
+++ b/web/index.html
@@ -31,29 +31,18 @@
 
   <title>sheetless</title>
   <link rel="manifest" href="manifest.json">
-
-  <script>
-    // The value below is injected by flutter build, do not touch.
-    var serviceWorkerVersion = null;
-  </script>
-  <!-- This script adds the flutter initialization JS code -->
-  <script src="flutter.js" defer></script>
 </head>
 <body>
-  <script>
-    window.addEventListener('load', function(ev) {
-      // Download main.dart.js
-      _flutter.loader.loadEntrypoint({
-        serviceWorker: {
-          serviceWorkerVersion: serviceWorkerVersion,
-        },
-        onEntrypointLoaded: function(engineInitializer) {
-          engineInitializer.initializeEngine().then(function(appRunner) {
-            appRunner.runApp();
-          });
-        }
-      });
-    });
+  <script src='https://cdn.jsdelivr.net/npm/pdfjs-dist@4.6.82/build/pdf.min.mjs' type='module'></script>
+  <script type='module'>
+  var { pdfjsLib } = globalThis;
+  pdfjsLib.GlobalWorkerOptions.workerSrc = 'https://cdn.jsdelivr.net/npm/pdfjs-dist@4.6.82/build/pdf.worker.mjs';
+
+  var pdfRenderOptions = {
+    cMapUrl: 'https://cdn.jsdelivr.net/npm/pdfjs-dist@4.6.82/cmaps/',
+    cMapPacked: true,
+  }
   </script>
+  <script src="flutter_bootstrap.js" async></script>
 </body>
 </html>