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try:
  import usocket as socket
except:
  import socket
  
from time import sleep
from machine import Pin
import onewire, ds18x20

import network

import esp
esp.osdebug(None)

import gc
gc.collect()

ds_pin = Pin(4)
ds_sensor = ds18x20.DS18X20(onewire.OneWire(ds_pin))

ssid = 'KHIM'
password = 'Kk09112544'

station = network.WLAN(network.STA_IF)

station.active(True)
station.connect(ssid, password)

while station.isconnected() == False:
  pass

print('Connection successful')
print(station.ifconfig())

def read_ds_sensor():
  roms = ds_sensor.scan()
  print('Found DS devices: ', roms)
  print('Temperatures: ')
  ds_sensor.convert_temp()
  for rom in roms:
    temp = ds_sensor.read_temp(rom)
    if isinstance(temp, float):
      msg = round(temp, 2)
      print(temp, end=' ')
      print('Valid temperature')
      return msg
  return b'0.0'
  
def web_page():
  temp = read_ds_sensor()
  html = """<!DOCTYPE HTML>
  <html>
    <head>
    
      <meta name="viewport" content="width=device-width, initial-scale=1">
      <meta http-equiv="refresh" content="1">
      <link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.7.2/css/all.css" integrity="sha384-fnmOCqbTlWIlj8LyTjo7mOUStjsKC4pOpQbqyi7RrhN7udi9RwhKkMHpvLbHG9Sr" crossorigin="anonymous">
      <style> 
        html { font-family: Times; display: inline-block; margin: 0px auto; text-align: center; }
        body{ background-color:#dbc1c5 }
        h2 { font-size: 3.0rem; } 
        p { font-size: 3.0rem; } 
        .units { font-size: 1.2rem; } 
        .ds-labels{ font-size: 1.5rem; vertical-align:middle; padding-bottom: 15px; }
      </style>
      <meta http-equiv="refresh" content="5"> <!-- Refresh every 5 seconds -->
    </head>
    <body>
      
      <h2>
        <i class="fas fa-thermometer-half" style="color:#ed4055;"></i>
        ESP32 with DS18B20
        <i class="fas fa-thermometer-half" style="color:#334d67;"></i>
      </h2>
      <p>
        <span class="ds-labels">Temperature</span>
        <span id="temperature">""" + str(temp) + """</span>
        <span class="units">&deg;C</sup>
      </p>
      <p> 
        <span class="ds-labels">Temperature</span>
        <span id="temperature">""" + str(round(temp * (9/5) + 32.0, 2)) + """</span>
        <span class="ds-labels">&deg;F</span>
      </p>
      <p>
        <i class="fas fa-address-card" style="color:#334d67;"></i>
        <span class="ds-labels">:NATJUTA PIYANUSORN 6304035610123</span>
      </p>
    </body>
  </html>"""
  return html

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind(('', 80))
s.listen(5)
while True:
  try:
    if gc.mem_free() < 102000:
      gc.collect()
    conn, addr = s.accept()
    conn.settimeout(3.0)
    print('Got a connection from %s' % str(addr))
    request = conn.recv(1024)
    conn.settimeout(None)
    request = str(request)
    print('Content = %s' % request)
    response = web_page()
    conn.send('HTTP/1.1 200 OK\n')
    conn.send('Content-Type: text/html\n')
    conn.send('Connection: close\n\n')
    conn.sendall(response)
    conn.close()
  except OSError as e:
    conn.close()
    print('Connection closed')
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