files moved to src folder

added flutter_hooks support with example
2022-06-22 13:46:40 +06:00
parent e0c70d153f
commit 8c53f1b0fe
20 changed files with 319 additions and 30 deletions
@@ -0,0 +1,65 @@
+import 'package:flutter/widgets.dart';
+
+abstract class BaseOperation<Data, StatusType> extends ChangeNotifier {
+  /// The number of times the query should refetch in the time of error
+  /// before giving up
+  final int retries;
+  final Duration retryDelay;
+
+  // got from global options
+  @protected
+  Duration cacheTime;
+
+  // all properties
+  Data? data;
+  dynamic error;
+  StatusType status;
+
+  /// total count of how many times the query retried to get a successful
+  /// result
+  int retryAttempts = 0;
+  DateTime updatedAt;
+
+  @protected
+  bool fetched = false;
+
+  /// used for keeping track of query activity. If the are no mounts &
+  /// the passed cached time is over than the query is removed from
+  /// storage/cache
+  Set<ValueKey<String>> _mounts = {};
+
+  BaseOperation({
+    required this.cacheTime,
+    required this.retries,
+    required this.retryDelay,
+    required this.status,
+    this.data,
+  }) : updatedAt = DateTime.now();
+
+  void mount(ValueKey<String> uKey) {
+    _mounts.add(uKey);
+  }
+
+  void unmount(ValueKey<String> uKey) {
+    if (_mounts.length == 1) {
+      Future.delayed(cacheTime, () {
+        _mounts.remove(uKey);
+        // for letting know QueryBowl that this one's time has come for
+        // getting crushed
+        notifyListeners();
+      });
+    } else {
+      _mounts.remove(uKey);
+    }
+  }
+
+  Set<ValueKey<String>> get mounts => _mounts;
+
+  bool get isSuccess;
+  bool get isError;
+  bool get isLoading;
+  bool get isIdle;
+  bool get isInactive => mounts.isEmpty;
+  bool get hasData => isSuccess && data != null;
+  bool get hasError => isError && error != null;
+}