Support multiple topmost records

Flow.Launcher.Infrastructure/Storage/JsonStorage.cs

@@ -45,6 +45,11 @@ namespace Flow.Launcher.Infrastructure.Storage
             FilesFolders.ValidateDirectory(DirectoryPath);
         }
 
+        public bool Exists()
+        {
+            return File.Exists(FilePath);
+        }
+
         public async Task<T> LoadAsync()
         {
             if (Data != null)

Flow.Launcher/Storage/TopMostRecord.cs

@@ -1,5 +1,6 @@
 using System.Collections.Concurrent;
 using System.Collections.Generic;
+using System.Linq;
 using System.Text.Json.Serialization;
 using Flow.Launcher.Infrastructure.Storage;
 using Flow.Launcher.Plugin;
@@ -8,14 +9,29 @@ namespace Flow.Launcher.Storage
 {
     public class FlowLauncherJsonStorageTopMostRecord : ISavable
     {
-        private readonly FlowLauncherJsonStorage<TopMostRecord> _topMostRecordStorage;
-
-        private readonly TopMostRecord _topMostRecord;
+        private readonly FlowLauncherJsonStorage<MultipleTopMostRecord> _topMostRecordStorage;
+        private readonly MultipleTopMostRecord _topMostRecord;
 
         public FlowLauncherJsonStorageTopMostRecord()
         {
-            _topMostRecordStorage = new FlowLauncherJsonStorage<TopMostRecord>();
-            _topMostRecord = _topMostRecordStorage.Load();
+            var topMostRecordStorage = new FlowLauncherJsonStorage<TopMostRecord>();
+            var exist = topMostRecordStorage.Exists();
+            if (exist)
+            {
+                // Get old data
+                var topMostRecord = topMostRecordStorage.Load();
+
+                // Convert to new data
+                _topMostRecordStorage = new FlowLauncherJsonStorage<MultipleTopMostRecord>();
+                _topMostRecord = _topMostRecordStorage.Load();
+                _topMostRecord.Add(topMostRecord);
+            }
+            else
+            {
+                // Get new data
+                _topMostRecordStorage = new FlowLauncherJsonStorage<MultipleTopMostRecord>();
+                _topMostRecord = _topMostRecordStorage.Load();
+            }
         }
 
         public void Save()
@@ -42,7 +58,7 @@ namespace Flow.Launcher.Storage
     public class TopMostRecord
     {
         [JsonInclude]
-        public ConcurrentDictionary<string, Record> records { get; private set; } = new ConcurrentDictionary<string, Record>();
+        public ConcurrentDictionary<string, Record> records { get; private set; } = new();
 
         internal bool IsTopMost(Result result)
         {
@@ -90,12 +106,113 @@ namespace Flow.Launcher.Storage
         }
     }
 
+    public class MultipleTopMostRecord
+    {
+        [JsonInclude]
+        public ConcurrentDictionary<string, ConcurrentBag<Record>> records { get; private set; } = new();
+
+        internal void Add(TopMostRecord topMostRecord)
+        {
+            if (topMostRecord == null || topMostRecord.records.IsEmpty)
+            {
+                return;
+            }
+
+            foreach (var record in topMostRecord.records)
+            {
+                records.AddOrUpdate(record.Key, new ConcurrentBag<Record> { record.Value }, (key, oldValue) =>
+                {
+                    oldValue.Add(record.Value);
+                    return oldValue;
+                });
+            }
+        }
+
+        internal bool IsTopMost(Result result)
+        {
+            // origin query is null when user select the context menu item directly of one item from query list
+            // in this case, we do not need to check if the result is top most
+            if (records.IsEmpty || result.OriginQuery == null ||
+                !records.TryGetValue(result.OriginQuery.RawQuery, out var value))
+            {
+                return false;
+            }
+
+            // since this dictionary should be very small (or empty) going over it should be pretty fast.
+            return value.Any(record => record.Equals(result));
+        }
+
+        internal void Remove(Result result)
+        {
+            // origin query is null when user select the context menu item directly of one item from query list
+            // in this case, we do not need to remove the record
+            if (result.OriginQuery == null ||
+                !records.TryGetValue(result.OriginQuery.RawQuery, out var value))
+            {
+                return;
+            }
+
+            // remove the record from the bag
+            var recordToRemove = value.FirstOrDefault(r => r.Equals(result));
+            if (recordToRemove != null)
+            {
+                value.TryTake(out recordToRemove);
+            }
+        }
+
+        internal void AddOrUpdate(Result result)
+        {
+            // origin query is null when user select the context menu item directly of one item from query list
+            // in this case, we do not need to add or update the record
+            if (result.OriginQuery == null)
+            {
+                return;
+            }
+
+            var record = new Record
+            {
+                PluginID = result.PluginID,
+                Title = result.Title,
+                SubTitle = result.SubTitle,
+                RecordKey = result.RecordKey
+            };
+            if (!records.TryGetValue(result.OriginQuery.RawQuery, out var value))
+            {
+                // create a new bag if it does not exist
+                value = new ConcurrentBag<Record>()
+                {
+                    record
+                };
+                records.TryAdd(result.OriginQuery.RawQuery, value);
+            }
+            else
+            {
+                // add or update the record in the bag
+                if (value.Any(r => r.Equals(result)))
+                {
+                    // update the record
+                    var recordToUpdate = value.FirstOrDefault(r => r.Equals(result));
+                    if (recordToUpdate != null)
+                    {
+                        value.TryTake(out recordToUpdate);
+                        value.Add(record);
+                    }
+                }
+                else
+                {
+                    // add the record
+                    value.Add(record);
+                }
+            }
+        }
+    }
+
     public class Record
     {
-        public string Title { get; set; }
-        public string SubTitle { get; set; }
-        public string PluginID { get; set; }
-        public string RecordKey { get; set; }
+        public string Title { get; init; }
+        public string SubTitle { get; init; }
+        public string PluginID { get; init; }
+        public string RecordKey { get; init; }
 
         public bool Equals(Result r)
         {