1 files changed, 78 insertions, 0 deletions
diff --git a/LibMatrix.EventTypes/Spec/State/RoomInfo/RoomPowerLevelEventContent.cs b/LibMatrix.EventTypes/Spec/State/RoomInfo/RoomPowerLevelEventContent.cs
new file mode 100644
index 0000000..1a09ab8
--- /dev/null
+++ b/LibMatrix.EventTypes/Spec/State/RoomInfo/RoomPowerLevelEventContent.cs
@@ -0,0 +1,78 @@
+using System.Text.Json.Serialization;
+
+namespace LibMatrix.EventTypes.Spec.State;
+
+[MatrixEvent(EventName = EventId)]
+public class RoomPowerLevelEventContent : TimelineEventContent {
+    public const string EventId = "m.room.power_levels";
+
+    [JsonPropertyName("ban")]
+    public long? Ban { get; set; } = 50;
+
+    [JsonPropertyName("events_default")]
+    public long? EventsDefault { get; set; } = 0;
+
+    [JsonPropertyName("invite")]
+    public long? Invite { get; set; } = 0;
+
+    [JsonPropertyName("kick")]
+    public long? Kick { get; set; } = 50;
+
+    [JsonPropertyName("notifications")]
+    public NotificationsPL? NotificationsPl { get; set; } // = null!;
+
+    [JsonPropertyName("redact")]
+    public long? Redact { get; set; } = 50;
+
+    [JsonPropertyName("state_default")]
+    public long? StateDefault { get; set; } = 50;
+
+    [JsonPropertyName("events")]
+    public Dictionary<string, long>? Events { get; set; } // = null!;
+
+    [JsonPropertyName("users")]
+    public Dictionary<string, long>? Users { get; set; } // = null!;
+
+    [JsonPropertyName("users_default")]
+    public long? UsersDefault { get; set; } = 0;
+
+    [Obsolete("Historical was a key related to MSC2716, a spec change on backfill that was dropped!", true)]
+    [JsonIgnore]
+    [JsonPropertyName("historical")]
+    public long Historical { get; set; } // = 50;
+
+    public class NotificationsPL {
+        [JsonPropertyName("room")]
+        public long Room { get; set; } = 50;
+    }
+
+    public bool IsUserAdmin(string userId) {
+        ArgumentNullException.ThrowIfNull(userId);
+        return Users.TryGetValue(userId, out var level) && level >= Events.Max(x => x.Value);
+    }
+
+    public bool UserHasTimelinePermission(string userId, string eventType) {
+        ArgumentNullException.ThrowIfNull(userId);
+        return Users.TryGetValue(userId, out var level) && level >= Events.GetValueOrDefault(eventType, EventsDefault ?? 0);
+    }
+
+    public bool UserHasStatePermission(string userId, string eventType) {
+        ArgumentNullException.ThrowIfNull(userId);
+        return Users.TryGetValue(userId, out var level) && level >= Events.GetValueOrDefault(eventType, StateDefault ?? 50);
+    }
+
+    public long GetUserPowerLevel(string userId) {
+        ArgumentNullException.ThrowIfNull(userId);
+        return Users.TryGetValue(userId, out var level) ? level : UsersDefault ?? UsersDefault ?? 0;
+    }
+
+    public long GetEventPowerLevel(string eventType) {
+        return Events.TryGetValue(eventType, out var level) ? level : EventsDefault ?? EventsDefault ?? 0;
+    }
+
+    public void SetUserPowerLevel(string userId, long powerLevel) {
+        ArgumentNullException.ThrowIfNull(userId);
+        Users ??= new();
+        Users[userId] = powerLevel;
+    }
+}