1 files changed, 87 insertions, 0 deletions
diff --git a/Ryujinx.HLE/HOS/Services/Account/Acc/AccountSaveDataManager.cs b/Ryujinx.HLE/HOS/Services/Account/Acc/AccountSaveDataManager.cs
new file mode 100644
index 00000000..44ef3f33
--- /dev/null
+++ b/Ryujinx.HLE/HOS/Services/Account/Acc/AccountSaveDataManager.cs
@@ -0,0 +1,87 @@
+using Ryujinx.Common.Configuration;
+using Ryujinx.Common.Utilities;
+using System.Collections.Concurrent;
+using System.Collections.Generic;
+using System.IO;
+using System.Text.Json.Serialization;
+
+namespace Ryujinx.HLE.HOS.Services.Account.Acc
+{
+    class AccountSaveDataManager
+    {
+        private readonly string _profilesJsonPath = Path.Join(AppDataManager.BaseDirPath, "system", "Profiles.json");
+
+        private struct ProfilesJson
+        {
+            [JsonPropertyName("profiles")]
+            public List<UserProfileJson> Profiles { get; set; }
+            [JsonPropertyName("last_opened")]
+            public string LastOpened { get; set; }
+        }
+
+        private struct UserProfileJson
+        {
+            [JsonPropertyName("user_id")]
+            public string UserId { get; set; }
+            [JsonPropertyName("name")]
+            public string Name { get; set; }
+            [JsonPropertyName("account_state")]
+            public AccountState AccountState { get; set; }
+            [JsonPropertyName("online_play_state")]
+            public AccountState OnlinePlayState { get; set; }
+            [JsonPropertyName("last_modified_timestamp")]
+            public long LastModifiedTimestamp { get; set; }
+            [JsonPropertyName("image")]
+            public byte[] Image { get; set; }
+        }
+
+        public UserId LastOpened { get; set; }
+
+        public AccountSaveDataManager(ConcurrentDictionary<string, UserProfile> profiles)
+        {
+            // TODO: Use 0x8000000000000010 system savedata instead of a JSON file if needed.
+
+            if (File.Exists(_profilesJsonPath))
+            {
+                ProfilesJson profilesJson = JsonHelper.DeserializeFromFile<ProfilesJson>(_profilesJsonPath);
+
+                foreach (var profile in profilesJson.Profiles)
+                {
+                    UserProfile addedProfile = new UserProfile(new UserId(profile.UserId), profile.Name, profile.Image, profile.LastModifiedTimestamp);
+
+                    profiles.AddOrUpdate(profile.UserId, addedProfile, (key, old) => addedProfile);
+                }
+
+                LastOpened = new UserId(profilesJson.LastOpened);
+            }
+            else
+            {
+                LastOpened = AccountManager.DefaultUserId;
+            }
+        }
+
+        public void Save(ConcurrentDictionary<string, UserProfile> profiles)
+        {
+            ProfilesJson profilesJson = new ProfilesJson()
+            {
+                Profiles   = new List<UserProfileJson>(),
+                LastOpened = LastOpened.ToString()
+            };
+
+            foreach (var profile in profiles)
+            {
+                profilesJson.Profiles.Add(new UserProfileJson()
+                {
+                    UserId                = profile.Value.UserId.ToString(),
+                    Name                  = profile.Value.Name,
+                    AccountState          = profile.Value.AccountState,
+                    OnlinePlayState       = profile.Value.OnlinePlayState,
+                    LastModifiedTimestamp = profile.Value.LastModifiedTimestamp,
+                    Image                 = profile.Value.Image,
+                });
+            }
+
+            File.WriteAllText(_profilesJsonPath, JsonHelper.Serialize(profilesJson, true));
+        }
+    }
+}
+\ No newline at end of file