87 lines
3.3 KiB
C++
87 lines
3.3 KiB
C++
#pragma once
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#include <string>
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#include <vector>
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namespace fgc {
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// Remote control input (was struct mqtt_sub_data). The *_available flags mark
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// whether a fresh value arrived since the last poll().
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struct ControlCommand {
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bool control_code_available = false;
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int control_code = 0; // 0 = automatic sweep, 1 = directed to target heading
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bool heading_available = false;
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std::string target_heading; // kept as string; the yaw target in degrees
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};
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// Notification published after an image is captured and saved.
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struct CamEvent {
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std::string tower; // tower / FWT name
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std::string camera; // "RGB" / "ACR" / "NIR"
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int heading_decideg = 0; // yaw heading * 10 (one decimal as integer)
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int pitch_decideg = 0; // pitch elevation * 10 (one decimal as integer)
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long long timestamp_ms = 0; // Unix epoch ms; matches the image filename
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};
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// Ambient temperature/humidity reading published once per fresh sensor sample.
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struct EnvEvent {
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std::string tower;
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float temp_c = 0.0f;
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float humidity_pct = 0.0f;
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long long timestamp_ms = 0;
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};
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// What became of an outbound message. Dropped and Failed are separated because
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// they mean different things operationally: Dropped is "the link was down and we
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// discarded it silently", Failed is "the broker or library rejected it".
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// Inbound messages are always Ok.
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enum class Delivery { Ok, Dropped, Failed };
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// One message that crossed the control channel, for the connectivity view.
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struct ChannelMessage {
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long long timestamp_ms = 0;
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bool outbound = true; // PUB (ours) vs RX (broker's)
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Delivery delivery = Delivery::Ok;
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std::string topic;
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std::string payload;
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};
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// Cumulative channel counters since start-up.
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struct ChannelStats {
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long long published_ok = 0;
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long long published_dropped = 0; // attempted while disconnected: silently discarded
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long long published_failed = 0; // the broker/library rejected it
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long long received = 0;
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long long connects = 0; // successful (re)connections
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long long last_connect_ms = 0, last_loss_ms = 0;
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std::string last_status_payload; // what actually went out on StatusCode
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};
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// Abstraction over the remote control/telemetry channel. Implemented by
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// MqttControlChannel (Eclipse Paho) and NullControlChannel (no broker; used
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// for development - publishes are dropped and poll() yields a default).
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class IControlChannel {
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public:
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virtual ~IControlChannel() = default;
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// Returns true once usable. NullControlChannel always succeeds.
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virtual bool connect() = 0;
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virtual void disconnect() = 0;
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virtual bool connected() const = 0;
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virtual void publishStatus(int code) = 0;
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virtual void publishCamEvent(const CamEvent& event) = 0;
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virtual void publishEnv(const EnvEvent& event) = 0;
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// Latest control input; clears the *_available flags so each update is
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// acted on once.
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virtual ControlCommand poll() = 0;
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// Recent traffic and counters for the connectivity ('m') view. Default: none,
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// so an implementation that keeps no history needs no changes.
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virtual std::vector<ChannelMessage> recentMessages() const { return {}; }
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virtual ChannelStats channelStats() const { return {}; }
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};
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} // namespace fgc
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