#include <Arduino.h>
#include <esp_dmx.h>
#include <WiFi.h>
#include <WiFiMulti.h>
#include <HTTPClient.h>
#include <WiFiClientSecure.h>
#include <ETH.h>

static bool eth_connected = false;

int transmitPin = 4;
int receivePin = 16;
int enablePin = 3;

dmx_port_t dmxPort = 1;
byte data[DMX_MAX_PACKET_SIZE];

const char* rootCACertificate = \
"-----BEGIN CERTIFICATE-----\n" \
"MIIEMjCCAxqgAwIBAgIBATANBgkqhkiG9w0BAQUFADB7MQswCQYDVQQGEwJHQjEb\n" \
"MBkGA1UECAwSR3JlYXRlciBNYW5jaGVzdGVyMRAwDgYDVQQHDAdTYWxmb3JkMRow\n" \
"GAYDVQQKDBFDb21vZG8gQ0EgTGltaXRlZDEhMB8GA1UEAwwYQUFBIENlcnRpZmlj\n" \
"YXRlIFNlcnZpY2VzMB4XDTA0MDEwMTAwMDAwMFoXDTI4MTIzMTIzNTk1OVowezEL\n" \
"MAkGA1UEBhMCR0IxGzAZBgNVBAgMEkdyZWF0ZXIgTWFuY2hlc3RlcjEQMA4GA1UE\n" \
"BwwHU2FsZm9yZDEaMBgGA1UECgwRQ29tb2RvIENBIExpbWl0ZWQxITAfBgNVBAMM\n" \
"GEFBQSBDZXJ0aWZpY2F0ZSBTZXJ2aWNlczCCASIwDQYJKoZIhvcNAQEBBQADggEP\n" \
"ADCCAQoCggEBAL5AnfRu4ep2hxxNRUSOvkbIgwadwSr+GB+O5AL686tdUIoWMQua\n" \
"BtDFcCLNSS1UY8y2bmhGC1Pqy0wkwLxyTurxFa70VJoSCsN6sjNg4tqJVfMiWPPe\n" \
"3M/vg4aijJRPn2jymJBGhCfHdr/jzDUsi14HZGWCwEiwqJH5YZ92IFCokcdmtet4\n" \
"YgNW8IoaE+oxox6gmf049vYnMlhvB/VruPsUK6+3qszWY19zjNoFmag4qMsXeDZR\n" \
"rOme9Hg6jc8P2ULimAyrL58OAd7vn5lJ8S3frHRNG5i1R8XlKdH5kBjHYpy+g8cm\n" \
"ez6KJcfA3Z3mNWgQIJ2P2N7Sw4ScDV7oL8kCAwEAAaOBwDCBvTAdBgNVHQ4EFgQU\n" \
"oBEKIz6W8Qfs4q8p74Klf9AwpLQwDgYDVR0PAQH/BAQDAgEGMA8GA1UdEwEB/wQF\n" \
"MAMBAf8wewYDVR0fBHQwcjA4oDagNIYyaHR0cDovL2NybC5jb21vZG9jYS5jb20v\n" \
"QUFBQ2VydGlmaWNhdGVTZXJ2aWNlcy5jcmwwNqA0oDKGMGh0dHA6Ly9jcmwuY29t\n" \
"b2RvLm5ldC9BQUFDZXJ0aWZpY2F0ZVNlcnZpY2VzLmNybDANBgkqhkiG9w0BAQUF\n" \
"AAOCAQEACFb8AvCb6P+k+tZ7xkSAzk/ExfYAWMymtrwUSWgEdujm7l3sAg9g1o1Q\n" \
"GE8mTgHj5rCl7r+8dFRBv/38ErjHT1r0iWAFf2C3BUrz9vHCv8S5dIa2LX1rzNLz\n" \
"Rt0vxuBqw8M0Ayx9lt1awg6nCpnBBYurDC/zXDrPbDdVCYfeU0BsWO/8tqtlbgT2\n" \
"G9w84FoVxp7Z8VlIMCFlA2zs6SFz7JsDoeA3raAVGI/6ugLOpyypEBMs1OUIJqsi\n" \
"l2D4kF501KKaU73yqWjgom7C12yxow+ev+to51byrvLjKzg6CYG1a4XXvi3tPxq3\n" \
"smPi9WIsgtRqAEFQ8TmDn5XpNpaYbg==\n" \
"-----END CERTIFICATE-----\n";


void WiFiEvent(WiFiEvent_t event)
{
  switch (event) {
    case ARDUINO_EVENT_ETH_START:
      Serial.println("ETH Started");
      //set eth hostname here
      ETH.setHostname("esp32-ethernet");
      break;
    case ARDUINO_EVENT_ETH_CONNECTED:
      Serial.println("ETH Connected");
      break;
    case ARDUINO_EVENT_ETH_GOT_IP:
      Serial.print("ETH MAC: ");
      Serial.print(ETH.macAddress());
      Serial.print(", IPv4: ");
      Serial.print(ETH.localIP());
      if (ETH.fullDuplex()) {
        Serial.print(", FULL_DUPLEX");
      }
      Serial.print(", ");
      Serial.print(ETH.linkSpeed());
      Serial.println("Mbps");
      eth_connected = true;
      break;
    case ARDUINO_EVENT_ETH_DISCONNECTED:
      Serial.println("ETH Disconnected");
      eth_connected = false;
      break;
    case ARDUINO_EVENT_ETH_STOP:
      Serial.println("ETH Stopped");
      eth_connected = false;
      break;
    default:
      break;
  }
}

void testClient()
{
  WiFiClientSecure *client = new WiFiClientSecure;
  if(client) {
    client -> setCACert(rootCACertificate);

    {
      // Add a scoping block for HTTPClient https to make sure it is destroyed before WiFiClientSecure *client is 
      HTTPClient https;
  
      Serial.print("[HTTPS] begin...\n");
      if (https.begin(*client, "https://es.windfinder.com/report/empuries")) {  // HTTPS
        Serial.print("[HTTPS] GET...\n");
        // start connection and send HTTP header
        int httpCode = https.GET();
  
        // httpCode will be negative on error
        if (httpCode > 0) {
          // HTTP header has been send and Server response header has been handled
          Serial.printf("[HTTPS] GET... code: %d\n", httpCode);
  
          // file found at server
          if (httpCode == HTTP_CODE_OK || httpCode == HTTP_CODE_MOVED_PERMANENTLY) {
            String payload = https.getString();
            Serial.println(payload);
            while (https.getSize()>0) 
              {
                payload = https.getString();
                Serial.println(payload);
              }
            /*Serial.println(payload.indexOf("cw-compass__arrow icon-current-winddir-large"));
            Serial.println(payload.indexOf("current-wind__speed"));
            Serial.println(payload);*/
          }
        } else {
          Serial.printf("[HTTPS] GET... failed, error: %s\n", https.errorToString(httpCode).c_str());
        }
  
        https.end();
      } else {
        Serial.printf("[HTTPS] Unable to connect\n");
      }
    }
  
    delete client;
  } else {
    Serial.println("Unable to create client");
  }

  Serial.println();
  Serial.println("Waiting 1s before the next round...");
}

void setup() {
  Serial.begin(115200);
  dmx_config_t dmxConfig = DMX_DEFAULT_CONFIG;
  dmx_param_config(dmxPort, &dmxConfig);
  dmx_set_pin(dmxPort, transmitPin, receivePin, enablePin);
  int queueSize = 0;
  int interruptPriority = 1;
  dmx_driver_install(dmxPort, DMX_MAX_PACKET_SIZE, queueSize, NULL,
                     interruptPriority);
  dmx_set_mode(dmxPort, DMX_MODE_WRITE);
  data[0] = 0;
  WiFi.onEvent(WiFiEvent);
  ETH.begin();
  delay(1000);
  if (eth_connected) {
    testClient();
  }
}

void loop() {
  /*if (eth_connected) {
    testClient("es.windfinder.com", 443);
  }*/
  data[30] = 0;
  dmx_write_packet(dmxPort, data, DMX_MAX_PACKET_SIZE);
  dmx_send_packet(dmxPort, DMX_MAX_PACKET_SIZE);
  dmx_wait_send_done(dmxPort, DMX_PACKET_TIMEOUT_TICK);
  delay(1000);
  data[30] = 255;
  dmx_write_packet(dmxPort, data, DMX_MAX_PACKET_SIZE);
  dmx_send_packet(dmxPort, DMX_MAX_PACKET_SIZE);
  dmx_wait_send_done(dmxPort, DMX_PACKET_TIMEOUT_TICK);
  delay(1000);
}