Claude: File chunking system

esp32/include/communication/proto_helpers.h

@@ -41,6 +41,22 @@ DEFINE_MESSAGE_TRAITS(ServoPWMData, servo_pwm)
 DEFINE_MESSAGE_TRAITS(ServoStateData, servo_state)
 DEFINE_MESSAGE_TRAITS(CorrelationRequest, correlation_request)
 DEFINE_MESSAGE_TRAITS(CorrelationResponse, correlation_response)
+DEFINE_MESSAGE_TRAITS(FSDeleteRequest, fs_delete_request)
+DEFINE_MESSAGE_TRAITS(FSDeleteResponse, fs_delete_response)
+DEFINE_MESSAGE_TRAITS(FSMkdirRequest, fs_mkdir_request)
+DEFINE_MESSAGE_TRAITS(FSMkdirResponse, fs_mkdir_response)
+DEFINE_MESSAGE_TRAITS(FSListRequest, fs_list_request)
+DEFINE_MESSAGE_TRAITS(FSListResponse, fs_list_response)
+DEFINE_MESSAGE_TRAITS(FSDownloadStartRequest, fs_download_start_request)
+DEFINE_MESSAGE_TRAITS(FSDownloadStartResponse, fs_download_start_response)
+DEFINE_MESSAGE_TRAITS(FSDownloadChunkRequest, fs_download_chunk_request)
+DEFINE_MESSAGE_TRAITS(FSDownloadChunkResponse, fs_download_chunk_response)
+DEFINE_MESSAGE_TRAITS(FSUploadStartRequest, fs_upload_start_request)
+DEFINE_MESSAGE_TRAITS(FSUploadStartResponse, fs_upload_start_response)
+DEFINE_MESSAGE_TRAITS(FSUploadChunkRequest, fs_upload_chunk_request)
+DEFINE_MESSAGE_TRAITS(FSUploadChunkResponse, fs_upload_chunk_response)
+DEFINE_MESSAGE_TRAITS(FSCancelTransferRequest, fs_cancel_transfer_request)
+DEFINE_MESSAGE_TRAITS(FSCancelTransferResponse, fs_cancel_transfer_response)
 
 #undef DEFINE_MESSAGE_TRAITS
 

esp32/include/filesystem_ws.h

@@ -0,0 +1,62 @@
+#pragma once
+
+#include <LittleFS.h>
+#include <platform_shared/message.pb.h>
+#include <map>
+#include <string>
+
+#define FS_MAX_CHUNK_SIZE 1024
+#define FS_TRANSFER_TIMEOUT 30000  // 30 seconds
+
+namespace FileSystemWS {
+
+struct TransferState {
+    std::string path;
+    File file;
+    uint32_t fileSize;
+    uint32_t chunkSize;
+    uint32_t totalChunks;
+    uint32_t chunksProcessed;
+    uint32_t lastActivityTime;
+    bool isUpload;
+};
+
+class FileSystemHandler {
+  public:
+    FileSystemHandler();
+
+    // Delete file/directory
+    socket_message_FSDeleteResponse handleDelete(const socket_message_FSDeleteRequest& req);
+
+    // Create directory
+    socket_message_FSMkdirResponse handleMkdir(const socket_message_FSMkdirRequest& req);
+
+    // List directory
+    socket_message_FSListResponse handleList(const socket_message_FSListRequest& req);
+
+    // Download operations (ESP -> Client)
+    socket_message_FSDownloadStartResponse handleDownloadStart(const socket_message_FSDownloadStartRequest& req);
+    socket_message_FSDownloadChunkResponse handleDownloadChunk(const socket_message_FSDownloadChunkRequest& req);
+
+    // Upload operations (Client -> ESP)
+    socket_message_FSUploadStartResponse handleUploadStart(const socket_message_FSUploadStartRequest& req);
+    socket_message_FSUploadChunkResponse handleUploadChunk(const socket_message_FSUploadChunkRequest& req);
+
+    // Cancel transfer
+    socket_message_FSCancelTransferResponse handleCancelTransfer(const socket_message_FSCancelTransferRequest& req);
+
+    // Cleanup expired transfers
+    void cleanupExpiredTransfers();
+
+  private:
+    std::map<std::string, TransferState> transfers_;
+    uint32_t transferIdCounter_;
+
+    std::string generateTransferId();
+    void listDirectory(const std::string& path, socket_message_FSListResponse& response);
+    bool deleteRecursive(const std::string& path);
+};
+
+extern FileSystemHandler fsHandler;
+
+} // namespace FileSystemWS