#pragma once

#include "fgc/IEnvSensor.h"
#include "fgc/Logger.h"

#include <chrono>
#include <cmath>

namespace fgc {

// Simulated ambient sensor for development without hardware: synthesizes a
// slowly varying, plausible temp/humidity reading so the Sensors panel
// animates without an SHT41 attached.
class MockEnvSensor : public IEnvSensor {
public:
    void start() override {
        start_ = clock::now();
        LOG_INFO << "[mock] env sensor started";
    }
    void stop() override { LOG_INFO << "[mock] env sensor stopped"; }

    bool connected() const override { return true; }

    std::optional<EnvSample> sample() override {
        const double t = std::chrono::duration<double>(clock::now() - start_).count();
        EnvSample s;
        s.valid        = true;
        s.temp_c       = static_cast<float>(22.0 + 3.0 * std::sin(t * 0.02));
        s.humidity_pct = static_cast<float>(45.0 + 10.0 * std::sin(t * 0.013 + 1.0));
        s.timestamp_ms = std::chrono::duration_cast<std::chrono::milliseconds>(
                             std::chrono::system_clock::now().time_since_epoch())
                             .count();
        return s;
    }

    std::string name() const override { return "SHT41 (mock)"; }

private:
    using clock = std::chrono::steady_clock;
    clock::time_point start_ = clock::now();
};

}  // namespace fgc