487 feature request suggest author when adding book

ios/Podfile.lock

@@ -177,7 +177,7 @@ SPEC CHECKSUMS:
   SwiftProtobuf: bcfd2bc231cf9ae552cdc7c4e877bd3b41fe57b1
   SwiftyGif: 93a1cc87bf3a51916001cf8f3d63835fb64c819f
   TOCropViewController: edfd4f25713d56905ad1e0b9f5be3fbe0f59c863
-  url_launcher_ios: bbd758c6e7f9fd7b5b1d4cde34d2b95fcce5e812
+  url_launcher_ios: 6116280ddcfe98ab8820085d8d76ae7449447586
 
 PODFILE CHECKSUM: 819463e6a0290f5a72f145ba7cde16e8b6ef0796
 

lib/core/helpers/backup/backup_export.dart

@@ -72,7 +72,7 @@ class BackupExport {
 
   static Future<String?> prepareTemporaryBackup(BuildContext context) async {
     try {
-      await bookCubit.getAllBooks(tags: true);
+      await bookCubit.getAllBooks(getTags: false, getAuthors: false);
 
       final books = await bookCubit.allBooks.first;
       final listOfBookJSONs = List<String>.empty(growable: true);

lib/core/helpers/backup/csv_export.dart

@@ -76,7 +76,7 @@ class CSVExport {
 
   static Future<String?> _prepareCSVExport() async {
     try {
-      await bookCubit.getAllBooks(tags: true);
+      await bookCubit.getAllBooks(getAuthors: false, getTags: false);
 
       final books = await bookCubit.allBooks.first;
       final rows = List<List<String>>.empty(growable: true);

lib/logic/cubit/book_cubit.dart

@@ -38,6 +38,8 @@ class BookCubit extends Cubit {
       BehaviorSubject<List<int>>();
   final BehaviorSubject<List<String>> _tagsFetcher =
       BehaviorSubject<List<String>>();
+  final BehaviorSubject<List<String>> _authorsFetcher =
+      BehaviorSubject<List<String>>();
   final BehaviorSubject<Book?> _bookFetcher = BehaviorSubject<Book?>();
   final BehaviorSubject<List<Book>?> _booksWithSameTagFetcher =
       BehaviorSubject<List<Book>?>();
@@ -53,6 +55,7 @@ class BookCubit extends Cubit {
   Stream<List<Book>> get searchBooks => _searchBooksFetcher.stream;
   Stream<List<int>> get finishedYears => _finishedYearsFetcher.stream;
   Stream<List<String>> get tags => _tagsFetcher.stream;
+  Stream<List<String>> get authors => _authorsFetcher.stream;
   Stream<List<Book>?> get booksWithSameTag => _booksWithSameTagFetcher.stream;
   Stream<List<Book>?> get booksWithSameAuthor =>
       _booksWithSameAuthorFetcher.stream;
@@ -74,11 +77,20 @@ class BookCubit extends Cubit {
     getAllBooks();
   }
 
-  getAllBooks({bool tags = false}) async {
+  getAllBooks({
+    bool getTags = true,
+    bool getAuthors = true,
+  }) async {
     List<Book> books = await repository.getAllNotDeletedBooks();
     _booksFetcher.sink.add(books);
-    if (tags) return;
-    _tagsFetcher.sink.add(_getTags(books));
+
+    if (getTags) {
+      _tagsFetcher.sink.add(_getTags(books));
+    }
+
+    if (getAuthors) {
+      _authorsFetcher.sink.add(_getAuthors(books));
+    }
   }
 
   removeAllBooks() async {
@@ -237,6 +249,20 @@ class BookCubit extends Cubit {
     return tags;
   }
 
+  List<String> _getAuthors(List<Book> books) {
+    final authors = List<String>.empty(growable: true);
+
+    for (var book in books) {
+      if (!authors.contains(book.author)) {
+        authors.add(book.author);
+      }
+    }
+
+    authors.sort((a, b) => a.compareTo(b));
+
+    return authors;
+  }
+
   Future<bool> _checkIfCoverMigrationDone() async {
     final SharedPreferences prefs = await SharedPreferences.getInstance();
     final bool? check = prefs.getBool('is_cover_migration_done');

lib/ui/add_book_screen/add_book_screen.dart

@@ -446,15 +446,20 @@ class _AddBookScreenState extends State<AddBookScreen> {
                   textCapitalization: TextCapitalization.sentences,
                 ),
                 const SizedBox(height: 10),
-                BookTextField(
-                  controller: _authorCtrl,
-                  hint: LocaleKeys.enter_author.tr(),
-                  icon: Icons.person,
-                  keyboardType: TextInputType.name,
-                  maxLines: 5,
-                  maxLength: 255,
-                  textCapitalization: TextCapitalization.words,
-                ),
+                StreamBuilder<List<String>>(
+                    stream: bookCubit.authors,
+                    builder: (context, AsyncSnapshot<List<String>?> snapshot) {
+                      return BookTextField(
+                        controller: _authorCtrl,
+                        hint: LocaleKeys.enter_author.tr(),
+                        icon: Icons.person,
+                        keyboardType: TextInputType.name,
+                        maxLines: 5,
+                        maxLength: 255,
+                        textCapitalization: TextCapitalization.words,
+                        suggestions: snapshot.data,
+                      );
+                    }),
                 const Padding(
                   padding: EdgeInsets.all(10),
                   child: Divider(),

lib/ui/add_book_screen/widgets/book_text_field.dart

@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
+import 'package:flutter_typeahead/flutter_typeahead.dart';
 
 import 'package:openreads/core/themes/app_theme.dart';
 
@@ -19,6 +20,7 @@ class BookTextField extends StatefulWidget {
     this.textCapitalization = TextCapitalization.none,
     this.padding = const EdgeInsets.symmetric(horizontal: 10),
     this.onSubmitted,
+    this.suggestions,
   });
 
   final TextEditingController controller;
@@ -34,13 +36,13 @@ class BookTextField extends StatefulWidget {
   final TextCapitalization textCapitalization;
   final Function(String)? onSubmitted;
   final EdgeInsets padding;
+  final List<String>? suggestions;
 
   @override
   State<BookTextField> createState() => _BookTextFieldState();
 }
 
 class _BookTextFieldState extends State<BookTextField> {
-  final FocusNode focusNode = FocusNode();
   bool showClearButton = false;
 
   @override
@@ -70,46 +72,91 @@ class _BookTextFieldState extends State<BookTextField> {
           border: Border.all(color: dividerColor),
         ),
         child: Scrollbar(
-          child: TextField(
-            autofocus: widget.autofocus,
-            keyboardType: widget.keyboardType,
-            inputFormatters: widget.inputFormatters,
-            textCapitalization: widget.textCapitalization,
-            controller: widget.controller,
-            focusNode: focusNode,
-            minLines: 1,
-            maxLines: widget.maxLines,
-            maxLength: widget.maxLength,
-            textInputAction: widget.textInputAction,
-            style: const TextStyle(fontSize: 14),
-            onSubmitted: widget.onSubmitted ?? (_) {},
-            decoration: InputDecoration(
-              labelText: widget.hint,
-              labelStyle: const TextStyle(fontSize: 14),
-              icon: (widget.icon != null)
-                  ? Icon(
-                      widget.icon,
-                      color: Theme.of(context).colorScheme.primary,
-                    )
-                  : null,
-              border: InputBorder.none,
-              counterText: widget.hideCounter ? "" : null,
-              suffixIcon: showClearButton
-                  ? IconButton(
-                      onPressed: () {
-                        widget.controller.clear();
-                        setState(() {
-                          showClearButton = false;
-                        });
-                        focusNode.requestFocus();
-                      },
-                      icon: const Icon(Icons.clear),
-                    )
-                  : null,
-            ),
-          ),
+          child: widget.suggestions != null && widget.suggestions!.isNotEmpty
+              ? _buildTypeAheadField()
+              : _buildTextField(context),
         ),
       ),
     );
   }
+
+  TypeAheadField<String> _buildTypeAheadField() {
+    return TypeAheadField(
+        controller: widget.controller,
+        hideOnLoading: true,
+        hideOnEmpty: true,
+        itemBuilder: (context, suggestion) {
+          return Container(
+            color: Theme.of(context).colorScheme.surfaceVariant,
+            child: ListTile(
+              title: Text(suggestion),
+            ),
+          );
+        },
+        decorationBuilder: (context, child) {
+          return Container(
+            padding: const EdgeInsets.symmetric(vertical: 5),
+            decoration: BoxDecoration(
+              borderRadius: BorderRadius.circular(cornerRadius),
+              border: Border.all(color: dividerColor),
+            ),
+            child: child,
+          );
+        },
+        suggestionsCallback: (pattern) {
+          return widget.suggestions!.where((String option) {
+            return option.toLowerCase().startsWith(pattern.toLowerCase());
+          }).toList();
+        },
+        onSelected: (suggestion) {
+          widget.controller.text = suggestion;
+        },
+        builder: (_, __, focusNode) {
+          return _buildTextField(context, focusNode: focusNode);
+        });
+  }
+
+  TextField _buildTextField(
+    BuildContext context, {
+    FocusNode? focusNode,
+  }) {
+    return TextField(
+      autofocus: widget.autofocus,
+      keyboardType: widget.keyboardType,
+      inputFormatters: widget.inputFormatters,
+      textCapitalization: widget.textCapitalization,
+      controller: widget.controller,
+      focusNode: focusNode,
+      minLines: 1,
+      maxLines: widget.maxLines,
+      maxLength: widget.maxLength,
+      textInputAction: widget.textInputAction,
+      style: const TextStyle(fontSize: 14),
+      onSubmitted: widget.onSubmitted ?? (_) {},
+      decoration: InputDecoration(
+        labelText: widget.hint,
+        labelStyle: const TextStyle(fontSize: 14),
+        icon: (widget.icon != null)
+            ? Icon(
+                widget.icon,
+                color: Theme.of(context).colorScheme.primary,
+              )
+            : null,
+        border: InputBorder.none,
+        counterText: widget.hideCounter ? "" : null,
+        suffixIcon: showClearButton
+            ? IconButton(
+                onPressed: () {
+                  widget.controller.clear();
+                  setState(() {
+                    showClearButton = false;
+                  });
+                  focusNode?.requestFocus();
+                },
+                icon: const Icon(Icons.clear),
+              )
+            : null,
+      ),
+    );
+  }
 }