fix: change ams type when parsing AFC mmu

src/libslic3r/PresetBundle.cpp

@@ -3894,6 +3894,16 @@ unsigned int PresetBundle::sync_ams_list(std::vector<std::pair<DynamicPrintConfi
                         maps.erase(j);
                     }
                 }
+            }
+            if (is_placeholder) {
+                // Orca: an empty AMS slot is a placeholder, not a filament - never synthesize a
+                // preset for it. Kept here only to keep index alignment with ams_infos; the sync
+                // drops it so no filament slot is created or retained for an empty tray.
+                ams_filament_presets.push_back("");
+                ams_filament_colors.push_back("");
+                ams_filament_color_types.push_back("");
+                ams_multi_color_filment.push_back({});
+            } else if (use_map) {
                 ams_filament_presets.push_back("Generic PLA");//for unknow matieral
                 auto default_unknown_color = "#CECECE";
                 ams_filament_colors.push_back(default_unknown_color);
@@ -3902,12 +3912,6 @@ unsigned int PresetBundle::sync_ams_list(std::vector<std::pair<DynamicPrintConfi
                     filament_multi_color.push_back(default_unknown_color);
                 }
                 ams_multi_color_filment.push_back(filament_multi_color);
-            } else if (is_placeholder) {
-                // Orca: push placeholders to keep index alignment with ams_infos
-                ams_filament_presets.push_back("");
-                ams_filament_colors.push_back("");
-                ams_filament_color_types.push_back("");
-                ams_multi_color_filment.push_back({});
             }
             continue;
         }
@@ -4271,6 +4275,10 @@ unsigned int PresetBundle::sync_ams_list(std::vector<std::pair<DynamicPrintConfi
                     result_multi_colors.push_back(
                         i < ams_multi_color_filment.size() ? ams_multi_color_filment[i]
                                                            : std::vector<std::string>{ams_filament_colors[i]});
+                } else if (i < ams_infos.size() && ams_infos[i].is_placeholder) {
+                    // Orca: an empty AMS slot is a placeholder, not a filament, so drop it instead of
+                    // keeping or filling a slot for it. The device AMS panel still shows the empty tray.
+                    continue;
                 } else if (i < exist_presets.size()) {
                     // Empty tray or beyond tray count: keep existing filament
                     result_colors.push_back(exist_colors[i]);
@@ -4295,8 +4303,8 @@ unsigned int PresetBundle::sync_ams_list(std::vector<std::pair<DynamicPrintConfi
             filament_color_type->values = result_color_types;
             this->filament_presets      = result_presets;
             ams_multi_color_filment     = result_multi_colors;
-            filament_map->values.resize(total, 1);
+            filament_map->values.resize(result_presets.size(), 1);
-            filament_volume_map->values.resize(total, static_cast<int>(NozzleVolumeType::nvtStandard));
+            filament_volume_map->values.resize(result_presets.size(), static_cast<int>(NozzleVolumeType::nvtStandard));
         } else {
             // BBL: existing wholesale replace
             filament_color->values = ams_filament_colors;

src/slic3r/Utils/MoonrakerPrinterAgent.cpp

@@ -441,19 +441,7 @@ int MoonrakerPrinterAgent::set_queue_on_main_fn(QueueOnMainFn fn)
 
 void MoonrakerPrinterAgent::build_ams_payload(int ams_count, int max_lane_index, const std::vector<AmsTrayData>& trays)
 {
-
-    // Look up MachineObject via DeviceManager
-    auto* dev_manager = GUI::wxGetApp().getDeviceManager();
-    if (!dev_manager) {
-        return;
-    }
-    MachineObject* obj = dev_manager->get_my_machine(device_info.dev_id);
-    if (!obj) {
-        return;
-    }
-
     // Build BBL-format JSON for DevFilaSystemParser::ParseV1_0
-    nlohmann::json ams_json = nlohmann::json::object();
     nlohmann::json ams_array = nlohmann::json::array();
 
     // Calculate ams_exist_bits and tray_exist_bits
@@ -461,11 +449,9 @@ void MoonrakerPrinterAgent::build_ams_payload(int ams_count, int max_lane_index,
     unsigned long tray_exist_bits = 0;
 
     for (int ams_id = 0; ams_id < ams_count; ++ams_id) {
-        ams_exist_bits |= (1 << ams_id);
+        if (ams_id < 32) {
-
+            ams_exist_bits |= (1UL << ams_id);
-        nlohmann::json ams_unit = nlohmann::json::object();
+        }
-        ams_unit["id"] = std::to_string(ams_id);
-        ams_unit["info"] = "0002";  // treat as AMS_LITE 
 
         nlohmann::json tray_array = nlohmann::json::array();
         int max_slot_in_this_ams = std::min(3, max_lane_index - ams_id * 4);
@@ -481,43 +467,130 @@ void MoonrakerPrinterAgent::build_ams_payload(int ams_count, int max_lane_index,
                 }
             }
 
-            nlohmann::json tray_json = nlohmann::json::object();
+            if (tray && tray->has_filament && slot_index < 32) {
-            tray_json["id"] = std::to_string(slot_id);
+                tray_exist_bits |= (1UL << slot_index);
-            tray_json["tag_uid"] = "0000000000000000";
-
-            if (tray && tray->has_filament) {
-                tray_exist_bits |= (1 << slot_index);
-
-                tray_json["tray_info_idx"] = tray->tray_info_idx;
-                tray_json["tray_type"] = tray->tray_type;
-                tray_json["tray_color"] = normalize_color_value(tray->tray_color);
-
-                // Add temperature data if provided
-                if (tray->bed_temp > 0) {
-                    tray_json["bed_temp"] = std::to_string(tray->bed_temp);
-                }
-                if (tray->nozzle_temp > 0) {
-                    tray_json["nozzle_temp_max"] = std::to_string(tray->nozzle_temp);
-                }
-            } else {
-                tray_json["tray_info_idx"] = "";
-                tray_json["tray_type"] = "";
-                tray_json["tray_color"] = "00000000";
-                tray_json["tray_slot_placeholder"] = "1";
             }
 
-            tray_array.push_back(tray_json);
+            static const AmsTrayData empty_tray;
+            tray_array.push_back(make_ams_tray_json(std::to_string(slot_id), tray ? *tray : empty_tray));
         }
+
+        nlohmann::json ams_unit = nlohmann::json::object();
+        ams_unit["id"] = std::to_string(ams_id);
+        // Generic unit: type 1 (AMS) maps to AMSModel::GENERIC_AMS, which drives the
+        // variable-lane rendering. This is not a real Bambu AMS-Lite.
+        ams_unit["info"] = "0001";
         ams_unit["tray"] = tray_array;
         ams_array.push_back(ams_unit);
     }
 
+    BOOST_LOG_TRIVIAL(info) << "MoonrakerPrinterAgent::build_ams_payload: Parsed " << trays.size() << " trays";
+    submit_ams_payload(ams_array, ams_exist_bits, tray_exist_bits);
+}
+
+void MoonrakerPrinterAgent::build_ams_payload_grouped(const std::vector<AmsTrayData>& trays)
+{
+    // One AMS box per extruder, best effort. Lane-data changers (AFC, recent Happy Hare) report an
+    // extruder per lane but no physical box layout, so a box here is a logical feed group, not a
+    // discovered unit. Lanes without an extruder fall back to the main extruder.
+    std::map<int, std::vector<const AmsTrayData*>> boxes;
+    for (const auto& tray : trays) {
+        boxes[tray.extruder_id].push_back(&tray);
+    }
+
+    nlohmann::json ams_array = nlohmann::json::array();
+    unsigned long ams_exist_bits = 0;
+    unsigned long tray_exist_bits = 0;
+
+    int ams_id = 0;
+    for (auto& [extruder_id, lanes] : boxes) {
+        if (ams_id < 32) {
+            ams_exist_bits |= (1UL << ams_id);
+        }
+
+        // Keep a deterministic slot order within the box.
+        std::stable_sort(lanes.begin(), lanes.end(),
+                         [](const AmsTrayData* a, const AmsTrayData* b) { return a->slot_index < b->slot_index; });
+
+        nlohmann::json tray_array = nlohmann::json::array();
+        for (size_t slot = 0; slot < lanes.size(); ++slot) {
+            const AmsTrayData& tray = *lanes[slot];
+            int bit = ams_id * 4 + static_cast<int>(slot);
+            if (tray.has_filament && bit < 32) {
+                tray_exist_bits |= (1UL << bit);
+            }
+            tray_array.push_back(make_ams_tray_json(std::to_string(slot), tray));
+        }
+
+        nlohmann::json ams_unit = nlohmann::json::object();
+        ams_unit["id"] = std::to_string(ams_id);
+        // info: bits 0-3 = unit type (1 = AMS, i.e. AMSModel::GENERIC_AMS), bits 8-11 = bound
+        // extruder id. A logical feed group is a generic unit, not a Bambu AMS-Lite.
+        const int   info_val   = 1 | ((extruder_id & 0x0F) << 8);
+        const char* hex_digits = "0123456789ABCDEF";
+        std::string info       = "0000";
+        info[3] = hex_digits[info_val & 0x0F];
+        info[2] = hex_digits[(info_val >> 4) & 0x0F];
+        info[1] = hex_digits[(info_val >> 8) & 0x0F];
+        info[0] = hex_digits[(info_val >> 12) & 0x0F];
+        ams_unit["info"] = info;
+        ams_unit["tray"] = tray_array;
+        ams_array.push_back(ams_unit);
+        ++ams_id;
+    }
+
+    BOOST_LOG_TRIVIAL(info) << "MoonrakerPrinterAgent::build_ams_payload_grouped: Parsed " << trays.size()
+                            << " trays in " << boxes.size() << " extruder box(es)";
+    submit_ams_payload(ams_array, ams_exist_bits, tray_exist_bits);
+}
+
+nlohmann::json MoonrakerPrinterAgent::make_ams_tray_json(const std::string& tray_id, const AmsTrayData& tray)
+{
+    nlohmann::json tray_json = nlohmann::json::object();
+    tray_json["id"] = tray_id;
+    tray_json["tag_uid"] = "0000000000000000";
+
+    if (tray.has_filament) {
+        tray_json["tray_info_idx"] = tray.tray_info_idx;
+        tray_json["tray_type"] = tray.tray_type;
+        tray_json["tray_color"] = normalize_color_value(tray.tray_color);
+
+        // Add temperature data if provided
+        if (tray.bed_temp > 0) {
+            tray_json["bed_temp"] = std::to_string(tray.bed_temp);
+        }
+        if (tray.nozzle_temp > 0) {
+            tray_json["nozzle_temp_max"] = std::to_string(tray.nozzle_temp);
+        }
+    } else {
+        tray_json["tray_info_idx"] = "";
+        tray_json["tray_type"] = "";
+        tray_json["tray_color"] = "00000000";
+        tray_json["tray_slot_placeholder"] = "1";
+    }
+
+    return tray_json;
+}
+
+void MoonrakerPrinterAgent::submit_ams_payload(const nlohmann::json& ams_array, unsigned long ams_exist_bits, unsigned long tray_exist_bits)
+{
+    // Look up MachineObject via DeviceManager
+    auto* dev_manager = GUI::wxGetApp().getDeviceManager();
+    if (!dev_manager) {
+        return;
+    }
+    MachineObject* obj = dev_manager->get_my_machine(device_info.dev_id);
+    if (!obj) {
+        return;
+    }
+
     // Format as hex strings (matching BBL protocol)
     std::ostringstream ams_exist_ss;
     ams_exist_ss << std::hex << std::uppercase << ams_exist_bits;
     std::ostringstream tray_exist_ss;
     tray_exist_ss << std::hex << std::uppercase << tray_exist_bits;
 
+    nlohmann::json ams_json = nlohmann::json::object();
     ams_json["ams"] = ams_array;
     ams_json["ams_exist_bits"] = ams_exist_ss.str();
     ams_json["tray_exist_bits"] = tray_exist_ss.str();
@@ -528,7 +601,6 @@ void MoonrakerPrinterAgent::build_ams_payload(int ams_count, int max_lane_index,
 
     // Call the parser to populate DevFilaSystem
     DevFilaSystemParser::ParseV1_0(print_json, obj, obj->GetFilaSystem().get(), false);
-    BOOST_LOG_TRIVIAL(info) << "MoonrakerPrinterAgent::build_ams_payload: Parsed " << trays.size() << " trays";
 
     // Set printer_type so update_sync_status() can match it against the preset's printer type.
     // Without this, the comparison fails and all sync badges are cleared.
@@ -568,17 +640,15 @@ bool MoonrakerPrinterAgent::fetch_filament_info(std::string dev_id, FilamentSync
     if (fetch_moonraker_filament_data(trays, max_lane_index)) {
         BOOST_LOG_TRIVIAL(info) << "MoonrakerPrinterAgent::fetch_filament_info: Detected Moonraker filament system with "
                                 << (max_lane_index + 1) << " lanes";
-        int ams_count = (max_lane_index + 4) / 4;
+        build_ams_payload_grouped(trays);
-        build_ams_payload(ams_count, max_lane_index, trays);
         return true;
     }
 
-    // Attempt Happy Hare first (more widely adopted, supports more filament changers)
+    // Fall back to the Happy Hare `mmu` object for HH builds that do not publish lane_data
     if (fetch_hh_filament_info(trays, max_lane_index)) {
         BOOST_LOG_TRIVIAL(info) << "MoonrakerPrinterAgent::fetch_filament_info: Detected Happy Hare MMU with "
                                 << (max_lane_index + 1) << " gates";
-        int ams_count = (max_lane_index + 4) / 4;
+        build_ams_payload_grouped(trays);
-        build_ams_payload(ams_count, max_lane_index, trays);
         return true;
     }
 
@@ -684,6 +754,30 @@ int MoonrakerPrinterAgent::safe_json_int(const nlohmann::json& obj, const char*
     return 0;
 }
 
+int MoonrakerPrinterAgent::safe_json_int_flexible(const nlohmann::json& obj, const char* key, int default_value)
+{
+    auto it = obj.find(key);
+    if (it == obj.end())
+        return default_value;
+    if (it->is_number_integer())
+        return it->get<int>();
+    if (it->is_string()) {
+        const std::string s = it->get<std::string>();
+        if (s.empty())
+            return default_value;
+        try {
+            std::size_t consumed = 0;
+            const int   value    = std::stoi(s, &consumed);
+            if (consumed != s.size()) // reject partial parses such as "2oops"
+                return default_value;
+            return value;
+        } catch (...) {
+            return default_value;
+        }
+    }
+    return default_value;
+}
+
 std::string MoonrakerPrinterAgent::safe_array_string(const nlohmann::json& arr, int idx)
 {
     if (arr.is_array() && idx >= 0 && idx < static_cast<int>(arr.size()) && arr[idx].is_string())
@@ -792,23 +886,22 @@ bool MoonrakerPrinterAgent::fetch_moonraker_filament_data(std::vector<AmsTrayDat
             continue;
         }
 
-        // Extract lane index from the "lane" field (tool number, 0-based)
+        // Lane tool number (0-based). AFC reports it as a string in the documented sample but it
-        std::string lane_str = safe_json_string(lane_obj, "lane");
+        // can also be a number; accept either and skip lanes without a usable index.
-        int lane_index = -1;
+        const int lane_index = safe_json_int_flexible(lane_obj, "lane", -1);
-        if (!lane_str.empty()) {
-            try {
-                lane_index = std::stoi(lane_str);
-            } catch (...) {
-                lane_index = -1;
-            }
-        }
-
         if (lane_index < 0) {
             continue;
         }
 
         AmsTrayData tray;
         tray.slot_index = lane_index;
+        // AFC exposes the lane's extruder/toolhead as "extruder_index"; tolerate "extruder_id" as
+        // an alias. Unknown or negative falls back to the main extruder (best effort).
+        tray.extruder_id = safe_json_int_flexible(lane_obj, "extruder_index",
+                              safe_json_int_flexible(lane_obj, "extruder_id", 0));
+        if (tray.extruder_id < 0) {
+            tray.extruder_id = 0;
+        }
         tray.tray_color = safe_json_string(lane_obj, "color");
         tray.tray_type = safe_json_string(lane_obj, "material");
         tray.bed_temp = safe_json_int(lane_obj, "bed_temp");
@@ -913,48 +1006,41 @@ bool MoonrakerPrinterAgent::fetch_hh_filament_info(std::vector<AmsTrayData>& tra
         return false;
     }
 
-    // Parse gate data
+    // Parse gate data. Every gate becomes a lane so empty/unknown gates surface
+    // as empty AMS slots rather than vanishing. HH is single-extruder, so all
+    // lanes belong to feed group 0.
     trays.clear();
-    max_lane_index = 0;
 
     for (int gate_idx = 0; gate_idx < num_gates; ++gate_idx) {
         // Check gate_status: -1 = unknown, 0 = empty, 1 or 2 = available
         int status = safe_array_int(gate_status, gate_idx);
-        if (status <= 0) {
-            continue;  // Skip unknown or empty gates
-        }
-
-        // Extract gate data
         std::string material = safe_array_string(gate_material, gate_idx);
         std::string color = safe_array_string(gate_color, gate_idx);
         int nozzle_temp = safe_array_int(gate_temperature, gate_idx);
 
-        // Skip if no material type (empty gate)
-        if (material.empty()) {
-            continue;
-        }
-
         AmsTrayData tray;
         tray.slot_index = gate_idx;
-        tray.tray_type = material;
+        tray.extruder_id = 0;
-        tray.tray_color = color;
-        tray.nozzle_temp = nozzle_temp;
-        tray.bed_temp = 0;  // HH doesn't provide bed temp in gate arrays
-        tray.has_filament = true;
 
-        auto* bundle = GUI::wxGetApp().preset_bundle;
+        if (status > 0 && !material.empty()) {
-        tray.tray_info_idx = bundle
+            tray.tray_type = material;
-            ? bundle->filaments.filament_id_by_type(tray.tray_type)
+            tray.tray_color = color;
-            : map_filament_type_to_generic_id(tray.tray_type);
+            tray.nozzle_temp = nozzle_temp;
+            tray.bed_temp = 0;  // HH doesn't provide bed temp in gate arrays
+            tray.has_filament = true;
+
+            auto* bundle = GUI::wxGetApp().preset_bundle;
+            tray.tray_info_idx = bundle
+                ? bundle->filaments.filament_id_by_type(tray.tray_type)
+                : map_filament_type_to_generic_id(tray.tray_type);
+        } else {
+            tray.has_filament = false;
+        }
 
-        max_lane_index = std::max(max_lane_index, gate_idx);
         trays.push_back(tray);
     }
 
-    if (trays.empty()) {
+    max_lane_index = num_gates - 1;
-        BOOST_LOG_TRIVIAL(info) << "MoonrakerPrinterAgent::fetch_hh_filament_info: No valid HH gates found";
-        return false;
-    }
 
     return true;
 }

src/slic3r/Utils/MoonrakerPrinterAgent.hpp

@@ -88,6 +88,7 @@ protected:
     // Tray data for AMS payload building
     struct AmsTrayData {
         int         slot_index = 0;      // 0-based slot index
+        int         extruder_id = 0;     // Extruder this lane feeds (AFC extruder_index); 0 when unknown
         bool        has_filament = false;
         std::string tray_type;           // Material type (e.g., "PLA", "ASA")
         std::string tray_color;          // Raw color (#RRGGBB, 0xRRGGBB, or RRGGBBAA)
@@ -99,6 +100,10 @@ protected:
     // Build ams JSON and call parser
     void build_ams_payload(int ams_count, int max_lane_index, const std::vector<AmsTrayData>& trays);
 
+    // Build ams JSON with one box per extruder (best effort, for lane_data-based filament
+    // changers such as AFC) and call the parser. Boxes are ordered by extruder id.
+    void build_ams_payload_grouped(const std::vector<AmsTrayData>& trays);
+
     // Methods that derived classes may need to override or access
     virtual bool init_device_info(const std::string& dev_id, const std::string& dev_ip, const std::string& username, const std::string& password, bool use_ssl, const std::string& port);
     virtual bool fetch_device_info(const std::string& base_url, const std::string& api_key, MoonrakerDeviceInfo& info, std::string& error) const;
@@ -164,9 +169,18 @@ private:
     bool fetch_hh_filament_info(std::vector<AmsTrayData>& trays, int& max_lane_index);
     bool fetch_moonraker_filament_data(std::vector<AmsTrayData>& trays, int& max_lane_index);
 
+    // Build one BBL tray JSON object (placeholder when the tray has no filament).
+    static nlohmann::json make_ams_tray_json(const std::string& tray_id, const AmsTrayData& tray);
+
+    // Wrap the AMS boxes into the payload ParseV1_0 understands and apply the pull-mode
+    // readiness state (printer_type, push counters, storage, module versions).
+    void submit_ams_payload(const nlohmann::json& ams_array, unsigned long ams_exist_bits, unsigned long tray_exist_bits);
+
     // JSON helper methods
     static std::string safe_json_string(const nlohmann::json& obj, const char* key);
     static int safe_json_int(const nlohmann::json& obj, const char* key);
+    // Accepts either a JSON number or a numeric string (AFC reports some fields as strings).
+    static int safe_json_int_flexible(const nlohmann::json& obj, const char* key, int default_value);
     static std::string safe_array_string(const nlohmann::json& arr, int idx);
     static int safe_array_int(const nlohmann::json& arr, int idx);
     static std::string normalize_color_value(const std::string& color);