print('This program integrate ESP32 + Ultrasonic + OLED')

#Import all related module/library
import ultrasonic_lib
import oled_lib
from utime import sleep
from machine import Pin, SoftI2C, PWM #PWM=Pulse Width Modulation, SoftI2C = SCL,SDA
#import requests

#Declare pin connection for ultrasonic and
#Create an object for ultrasonic using OOP (Object Oriented Programming)
#format OOP --> library name.class name(trigger_pin, echo_pin, echo_timeout_us=500*2*30)
ciku = ultrasonic_lib.HCSR04(trigger_pin=12, echo_pin=27, echo_timeout_us=500*2*30)

#Pin declaration on OLED
i2c_oleddisplay = SoftI2C(scl=Pin(22), sda=Pin(21))

#3. Define the OLED variables
oled_width = 128 #based on spec
oled_height = 64 #based on spec

#4. Use OOP (Object Oriented Programming) to create the object
#Remarks: Object format --> library name.class name
#(width, height, i2c)
oled = oled_lib.SSD1306_I2C(oled_width, oled_height, i2c_oleddisplay)

#declare buzzer connection
buzzer = PWM(Pin(23), Pin.OUT)

#Your Favoriot cloud platform information
url='https://apiv2.favoriot.com/v2/streams'
Device_ID='deviceDefault@Siti_Marwangi'
Access_Token='MjN56YcbjIQErbs6lpHQ5KUCn5LrKHJi'

while True:
    #Test ciku!
    jarak_in_mm = ciku.distance_mm()
    jarak_in_cm = ciku.distance_cm()

    #Display the distance values in mm & cm (Serial Monitor) - seen by programmer
    print('The distance from an object in mm is : ', jarak_in_mm)
    print('The distance from an object in cm is : ', jarak_in_cm)
    print('-------------------------------------------------------')
    print('\n')

    #Display the distance value on oled screen:
    oled.fill(0)
    oled.text('Object Detected', 0, 0, 1) #x-axis, y-axis, colorfont(1-white,0-black)
    oled.text(str(jarak_in_mm), 5, 20, 1)
    oled.text('mm', 45, 20, 1)
    oled.text(str(jarak_in_cm), 5, 40, 1)
    oled.text('cm', 75, 40, 1)

    oled.show()

    #Making decision on how close the object is
    if jarak_in_cm < 100:
        #Making sound for buzzer
        for i in range (5):
            buzzer.init(freq=1000, duty=300)
            sleep(0.5)
            buzzer.init(freq=1, duty=0)
            sleep(0.5)
    elif 100 <= jarak_in_cm < 150:
        for i in range (5):
            buzzer.init(freq=500, duty=512)
            sleep(0.5)
            buzzer.init(freq=1, duty=0)
            sleep(0.5)
    else:
        buzzer.init(freq=1, duty=0)    

    #Set the data to be sent to clould platform using JSON format
    #JSON format --> {key:value}
    sensor_data={
        "device_developer_id":Device_ID,
        "data stream":{'field1':jarak_in_cm}
    }

    http_request={
        'Content-Type':'application/json',
        'Apikey':Access_Token
    }

    #Now, jom send data to cloud!
    #data_submission=requests.post(url, json=sensor_data, headers=http_request)

    #print('Data submission status is', data_submission.status_code)
    #data_submission.close()
    #print('***********************************')

    sleep(5)