import time
from grove.gpio import GPIO
import RPi.GPIO as rGPIO



led = GPIO(5, GPIO.OUT)
button = GPIO(6, GPIO.IN)

# create PWM instance
pwmPin = 12
rGPIO.setmode(rGPIO.BCM)
rGPIO.setup(pwmPin, rGPIO.OUT)
pwm = rGPIO.PWM(pwmPin, 10)


pwm.start(0) 
# 1000 Hz sound
pwm.ChangeFrequency(1000)
pwm.ChangeDutyCycle(100)

def setFreq(freq_hz: float):
    """
    Replace this with your actual frequency-setting function.
    freq_hz = 0 should silence the output.
    """
    print(freq_hz)
    pwm.ChangeFrequency(freq_hz)
    pass


# --- Timing ---
BPM = 100
BEAT = 60 / BPM  # seconds per quarter note


# --- Note frequencies (Hz) ---
# --- Note frequencies (Hz) ---
NOTES = {
    "C4": 261.63,
    "D4": 293.66,
    "E4": 329.63,
    "F4": 349.23,
    "G4": 392.00,
    "A4": 440.00,
    "B4": 493.88,
    "C5": 523.25,
    "D5": 587.33,
    "E5": 659.25,
    "REST": 0
}


# --- Melody (note, beats) ---
# Based on the standard vocal melody of "Erika"
MELODY = [
    ("E4", 1), ("G4", 1), ("A4", 2),
    ("A4", 1), ("G4", 1), ("E4", 2),

    ("E4", 1), ("G4", 1), ("A4", 2),
    ("A4", 1), ("G4", 1), ("E4", 2),

    ("A4", 1), ("C5", 1), ("D5", 2),
    ("D5", 1), ("C5", 1), ("A4", 2),

    ("G4", 1), ("A4", 1), ("G4", 1), ("E4", 1),
    ("E4", 2), ("REST", 2),
]


# --- Playback ---
def play():
    for note, beats in MELODY:
        setFreq(NOTES[note])
        time.sleep(beats * BEAT)
play()