1 files changed, 72 insertions, 0 deletions
diff --git a/Software/Visual_Studio/Tango.Telemetry/ITelemetryStorageManager.cs b/Software/Visual_Studio/Tango.Telemetry/ITelemetryStorageManager.cs
index ae63e41cd..882cc0411 100644
--- a/Software/Visual_Studio/Tango.Telemetry/ITelemetryStorageManager.cs
+++ b/Software/Visual_Studio/Tango.Telemetry/ITelemetryStorageManager.cs
@@ -6,13 +6,85 @@ using System.Threading.Tasks;
 
 namespace Tango.Telemetry
 {
+    /// <summary>
+    /// Defines the contract for managing telemetry storage, including pending telemetries and history source checkpoints.
+    /// </summary>
     public interface ITelemetryStorageManager
     {
+        /// <summary>
+        /// Initializes the storage manager with the specified checkpoints recovery client.
+        /// Responsible for loading the database, restoring from backup if necessary, and recovering remote checkpoints.
+        /// </summary>
+        /// <param name="checkpointsRecoveryClient">An implementation of the checkpoint recovery client used for cloud fallback.</param>
+        Task Init(ITelemetryCheckpointsRecoveryClient checkpointsRecoveryClient);
+
+        /// <summary>
+        /// Inserts or updates a pending telemetry record in the local storage.
+        /// </summary>
+        /// <param name="pendingTelemetry">The pending telemetry to be stored or updated.</param>
         void UpsertPendingTelemetry(PendingTelemetry pendingTelemetry);
+
+        /// <summary>
+        /// Deletes a pending telemetry record from the local storage.
+        /// </summary>
+        /// <param name="pendingTelemetry">The pending telemetry to be deleted.</param>
         void DeletePendingTelemetry(PendingTelemetry pendingTelemetry);
+
+        /// <summary>
+        /// Retrieves a list of pending telemetry records, ordered by time, up to the specified maximum count.
+        /// </summary>
+        /// <param name="maxCount">The maximum number of pending telemetries to retrieve.</param>
+        /// <returns>A list of pending telemetry objects.</returns>
         List<PendingTelemetry> GetPendingTelemetries(int maxCount);
+
+        /// <summary>
+        /// Gets the total number of pending telemetry records currently stored.
+        /// </summary>
+        /// <returns>The count of pending telemetry records.</returns>
         int GetPendingTelemetriesCount();
+
+        /// <summary>
+        /// Retrieves the current checkpoint for the specified history source.
+        /// </summary>
+        /// <param name="source">The telemetry history source for which to retrieve the checkpoint.</param>
+        /// <returns>The stored checkpoint information for the given source.</returns>
         TelemetryHistorySourceCheckPoint GetHistorySourceCheckPoint(ITelemetryHistorySource source);
+
+        /// <summary>
+        /// Retrieves all stored history source checkpoints currently tracked by the storage system.
+        /// Each checkpoint represents the latest processed state of a specific telemetry history source.
+        /// </summary>
+        /// <returns>A list of <see cref="TelemetryHistorySourceCheckPoint"/> entries for all registered history sources.</returns>
+        List<TelemetryHistorySourceCheckPoint> GetHistorySourcesCheckPoints();
+
+        /// <summary>
+        /// Sets or updates the checkpoint for the specified history source.
+        /// </summary>
+        /// <param name="source">The telemetry history source for which to update the checkpoint.</param>
+        /// <param name="time">The latest timestamp of telemetry data processed for the source.</param>
+        /// <param name="totalCount">The total number of telemetry records processed for the source.</param>
         void SetHistorySourceCheckPoint(ITelemetryHistorySource source, DateTime time, int totalCount);
+
+        /// <summary>
+        /// Adds the specified telemetry item to the published telemetry cache,
+        /// ensuring it is tracked as already published by the system.
+        /// </summary>
+        /// <param name="telemetry">The telemetry instance to register as published.</param>
+        void AddToPublishedTelemetryCache(ITelemetry telemetry);
+
+        /// <summary>
+        /// Checks whether the specified telemetry item is already present in the published telemetry cache.
+        /// </summary>
+        /// <param name="telemetry">The telemetry instance to verify.</param>
+        /// <returns>True if the telemetry appears to have already been published; otherwise, false.</returns>
+        bool IsTelemetryInPublishedCache(ITelemetry telementry);
+
+        /// <summary>
+        /// Removes entries from the published telemetry cache that were marked as published
+        /// before the specified time. Intended to manage memory and storage growth over time,
+        /// especially once historical sources have progressed beyond the given point.
+        /// </summary>
+        /// <param name="olderThan">The timestamp indicating the oldest publication time to retain. Entries older than this will be removed.</param>
+        void PerformPublishedTelemetriesCleanUp(DateTime olderThan);
     }
 }