/*!
 * @file TM6605_breathe.ino
 * @brief Slow smooth breathing haptic effect — Seeed XIAO ESP32-S3
 *        SDA → GPIO5  |  SCL → GPIO6
 */
#include <Wire.h>
#include "DFRobot_TM6605.h"

DFRobot_TM6605 TM6605;

// Play an effect and wait for it to finish before continuing
void playEffect(DFRobot_TM6605::eEffect_t effect, int duration) {
  TM6605.selectEffect(effect);
  TM6605.play();
  delay(duration);
  TM6605.stop();
  delay(50); // small gap between chained effects
}

void setup() {
  Serial.begin(115200);
  while (!Serial);

  Wire.begin(5, 6);  // SDA = GPIO5, SCL = GPIO6

  Serial.print("TM6605 init...");
  while (TM6605.begin() != 0) {
    Serial.println("failed, not found!");
    delay(1000);
  }
  Serial.println("success");
}

void loop() {
  Serial.println("Breathe in...");
  // Start soft, build to full
  playEffect(DFRobot_TM6605::eShortSlowBoostTransition2, 800);
  playEffect(DFRobot_TM6605::eMediumSlowBoostTransition2, 1000);
  playEffect(DFRobot_TM6605::eLongSlowBoostTransition1, 1500);

  // Hold at peak
  delay(300);

  Serial.println("Breathe out...");
  // Full, taper to soft
  playEffect(DFRobot_TM6605::eLongSlowFadeTransition1, 1500);
  playEffect(DFRobot_TM6605::eMediumSlowFadeTransition2, 1000);
  playEffect(DFRobot_TM6605::eShortSlowFadeTransition2, 800);

  // Pause at the bottom — adjust this for breath rate
  delay(600);
}