add missing file

include/nlohmann_slots.hpp

@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2024 Transit Live Mapping Solutions
+ * All rights reserved.
+ *
+ * Authors:
+ *   Marenz Schmidl
+ */
+
+#pragma once
+
+#include "l2/slot.hpp"
+#include <nlohmann/json.hpp>
+
+namespace nlohmann {
+template <> struct adl_serializer<Slots> {
+    static void to_json(json& j, const Slots& slots) {
+        j["burst_type"] = slots.get_burst_type();
+        j["slot_type"] = slots.get_slot_type();
+        /// This may but should not throw.
+        auto first_slot = slots.get_first_slot().get_logical_channel_data_and_crc();
+        j["first_slot_logical_channel"] = first_slot.channel;
+        j["first_slot_data"] = first_slot.data;
+        j["first_slot_crc_ok"] = first_slot.crc_ok;
+        auto second_slot_present = slots.has_second_slot();
+        j["second_slot_present"] = second_slot_present;
+        if (second_slot_present) {
+            auto second_slot = slots.get_second_slot().get_logical_channel_data_and_crc();
+            j["second_slot_logical_channel"] = first_slot.channel;
+            j["second_slot_data"] = first_slot.data;
+            j["second_slot_crc_ok"] = first_slot.crc_ok;
+        }
+    }
+
+    static void from_json(const json& j, Slots& slots) {
+        auto burst_type = j["burst_type"].template get<BurstType>();
+        auto slot_type = j["slot_type"].template get<SlotType>();
+        auto first_slot_logical_channel = j["first_slot_logical_channel"].template get<LogicalChannel>();
+        auto first_slot_data = j["first_slot_data"].template get<BitVector>();
+        auto first_slot_crc_ok = j["first_slot_crc_ok"].template get<bool>();
+        auto second_slot_present = j["second_slot_present"].template get<bool>();
+
+        auto first_slot = Slot(LogicalChannelDataAndCrc{
+            .channel = first_slot_logical_channel,
+            .data = first_slot_data,
+            .crc_ok = first_slot_crc_ok,
+        });
+
+        if (second_slot_present) {
+            auto second_slot_logical_channel = j["second_slot_logical_channel"].template get<LogicalChannel>();
+            auto second_slot_data = j["second_slot_data"].template get<BitVector>();
+            auto second_slot_crc_ok = j["second_slot_crc_ok"].template get<bool>();
+
+            auto second_slot = Slot(LogicalChannelDataAndCrc{
+                .channel = second_slot_logical_channel,
+                .data = second_slot_data,
+                .crc_ok = second_slot_crc_ok,
+            });
+
+            slots = Slots(burst_type, slot_type, std::move(first_slot), std::move(second_slot));
+        } else {
+            slots = Slots(burst_type, slot_type, std::move(first_slot));
+        }
+    }
+};
+} // namespace nlohmann