import network
import socket
import machine 
import gc
from time import sleep
gc.collect()


def obter_arquivo(arquivo):
    conteudo = ''
    a = open(arquivo,'rb')
    conteudo = a.read()
    return conteudo
estacao = network.WLAN(network.STA_IF)
estacao.active(True)
estacao.connect("Wokwi-GUEST","")
while estacao.isconnected() == False:
    pass
print('Conexao realizada')
print(estacao.ifconfig()[0])
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind(('',80))
s.listen(5)
try:
    while True:
        conexao, endereco = s.accept()
        #print('Conexao de %s' % str(endereco))
        requisicao = conexao.recv(1024)
        requisicao = str(requisicao)     
        if requisicao.find("/?valueServo=") != -1:
           p4 = machine.Pin(4)
           servo = machine.PWM(p4,freq=50)
           pos1 = requisicao.index('=')
           pos2 = requisicao.index('&')
           ValueServo = requisicao[pos1 + 1: pos2]
           print(ValueServo)  
           servo.duty(int(ValueServo))
 
        html = obter_arquivo('ServoControl.txt')
        #print('Conteudo = %s' % requisicao) 
        conexao.send('HTTP/1.1 200 OK\n')
        conexao.send('Content-Type: text/html\n')
        conexao.send('Connection: close\n\n')
        conexao.sendall(html)
        conexao.close()
except KeyboardInterrupt:
    s.close()
    estacao.active(False)