Add QoL feed, download and quality improvements

lib/backend/providers/danbooru_provider.dart

@@ -147,10 +147,24 @@ class DanbooruProvider implements ContentProvider, CommentProvider {
   }
 
   List<String> _topTags(TopPeriodFilter period) {
+    final now = DateTime.now();
     return switch (period) {
       TopPeriodFilter.none => const [],
-      TopPeriodFilter.month || TopPeriodFilter.year => const ['order:rank'],
+      TopPeriodFilter.month => [
+          'order:score',
+          'date:>${_date(now.subtract(const Duration(days: 31)))}',
+        ],
+      TopPeriodFilter.year => [
+          'order:score',
+          'date:>${_date(DateTime(now.year - 1, now.month, now.day))}',
+        ],
       TopPeriodFilter.allTime => const ['order:score'],
     };
   }
+
+  String _date(DateTime value) {
+    return '${value.year.toString().padLeft(4, '0')}-'
+        '${value.month.toString().padLeft(2, '0')}-'
+        '${value.day.toString().padLeft(2, '0')}';
+  }
 }

lib/backend/providers/e621_provider.dart

@@ -168,13 +168,27 @@ class E621Provider
   }
 
   List<String> _topTags(TopPeriodFilter period) {
+    final now = DateTime.now();
     return switch (period) {
       TopPeriodFilter.none => const [],
-      TopPeriodFilter.month => const ['order:rank'],
-      TopPeriodFilter.year || TopPeriodFilter.allTime => const ['order:score'],
+      TopPeriodFilter.month => [
+          'order:score',
+          'date:>${_date(now.subtract(const Duration(days: 31)))}',
+        ],
+      TopPeriodFilter.year => [
+          'order:score',
+          'date:>${_date(DateTime(now.year - 1, now.month, now.day))}',
+        ],
+      TopPeriodFilter.allTime => const ['order:score'],
     };
   }
 
+  String _date(DateTime value) {
+    return '${value.year.toString().padLeft(4, '0')}-'
+        '${value.month.toString().padLeft(2, '0')}-'
+        '${value.day.toString().padLeft(2, '0')}';
+  }
+
   int _int(dynamic value) {
     if (value is int) return value;
     if (value is num) return value.toInt();

lib/backend/providers/gelbooru_provider.dart

@@ -140,10 +140,8 @@ class GelbooruProvider implements ContentProvider, CommentProvider {
   List<String> _topTags(TopPeriodFilter period) {
     return switch (period) {
       TopPeriodFilter.none => const [],
-      TopPeriodFilter.month ||
-      TopPeriodFilter.year ||
-      TopPeriodFilter.allTime =>
-        const ['sort:score:desc'],
+      TopPeriodFilter.month || TopPeriodFilter.year => const [],
+      TopPeriodFilter.allTime => const ['sort:score:desc'],
     };
   }
 

lib/backend/providers/moebooru_provider.dart

@@ -166,10 +166,8 @@ class MoebooruProvider
   List<String> _topTags(TopPeriodFilter period) {
     return switch (period) {
       TopPeriodFilter.none => const [],
-      TopPeriodFilter.month ||
-      TopPeriodFilter.year ||
-      TopPeriodFilter.allTime =>
-        const ['order:score'],
+      TopPeriodFilter.month || TopPeriodFilter.year => const [],
+      TopPeriodFilter.allTime => const ['order:score'],
     };
   }
 

lib/backend/providers/rule34_provider.dart

@@ -22,10 +22,8 @@ class Rule34Provider extends GelbooruProvider {
   }) async {
     final topTags = switch (topPeriod) {
       TopPeriodFilter.none => const <String>[],
-      TopPeriodFilter.month ||
-      TopPeriodFilter.year ||
-      TopPeriodFilter.allTime =>
-        const ['sort:score:desc'],
+      TopPeriodFilter.month || TopPeriodFilter.year => const <String>[],
+      TopPeriodFilter.allTime => const ['sort:score:desc'],
     };
     final response = await dio.get<dynamic>(
       '/index.php',