#pragma once

#include <cstdint>

/**
 * @brief Piezo hit detection + WS2812 status LEDs.
 *
 * Ported from the Arduino version:
 *   * the legacy ADC DMA driver (`driver/adc.h`, removed in ESP-IDF v6) is
 *     replaced by the `adc_continuous` driver with the same 40 kHz aggregate
 *     sampling rate, 0 dB attenuation and 12-bit results;
 *   * Adafruit_NeoPixel (bit-banged) is replaced by an RMT WS2812 encoder.
 */
class Hit {
  public:
    // Same values as Adafruit_NeoPixel::Color(r, g, b) -> 0x00RRGGBB.
    static constexpr uint32_t RED = 0xFF0000;
    static constexpr uint32_t BLUE = 0x0000FF;
    static constexpr uint32_t GREEN = 0x00FF00;
    static constexpr uint32_t YELLOW = 0xFFFF00;

    /** Blink duration after a hit, and the cooldown that suppresses repeats. */
    static constexpr uint32_t HIT_BLINK_MS = 50;
    /** Raw 12-bit ADC level above which a sample counts as a hit. */
    static constexpr uint32_t HIT_THRESHOLD = 2000;

    static volatile uint32_t color;
    static volatile bool detect_hit;
    static volatile uint32_t hit_cnt;
    static volatile uint32_t last_hit_ms;

    static void begin();
    static void onLoop();
};