#include <xc.h>
#include <stdio.h>
#include <string.h>
#include "./mcc_generated_files/mcc.h"
#include "ESP32.h"
#include "uart.h"
#include "lcd.h"


#define Baudrate  115200 //baudrate in which data needs to be sent to esp32


void alternateLEDS();
void blinkLEDS();
void blinkLED(int ledNum);
// for connection with wifi
char conectionName[] = "Synology";
char password[] = "Keizergarden1994/";

//for serverconnection
char  ntpServer[] = "0.nl.pool.ntp.org";
unsigned int enable = 1, timezone = 2;

//MQTT userconnection information
unsigned int linkID = 0 , scheme = 7, cert_key_ID = 0, CA_ID = 0;
char ClientId[] = "ZYBOESP32";
char username[] = "Jeedella";
char MQTTpassword[] = "Jeedella";
char path[] = "wss";

//connections to broker
char host[] = "mqtt.eclipseprojects.io/mqtt";

unsigned int reconnect = 1, port = 443;

//subscribe and publish
char topic[] = "hello";
char topic2[] = "hello_2";
unsigned int qos = 1;
char data[] = "I am here";
char retain = 0;

//const char dummy_sens_data[] = "25volts"; //dummy data from a sensor    
//char macAdress[] = {0x30, 0xAE, 0xA4, 0x92, 0x74, 0xD8}; // mac adress of the wifi module

void main(void) {
    unsigned char cch;
    char strTxtp[cchRxMax];   
   // UART_InitPoll(Baudrate);
    LCD_Init(); //initialize LCD screen
    LCD_WriteStringAtPos(" UART Data test", 0, 0);
    UART_InitPoll(Baudrate);

    SYSTEM_Initialize();
   // shell_init(Baudrate); //initialise baudrate for sending over to esp32    

    delayMS(100);
    printString("checking AT status: \n\r");
    checkAT();

    printString("setting wifi mode: \n\r");
    setWiFiMode(1);
    delayMS(100);   
    printString("getting wifi mode:\n\r");
    getWiFiMode();
    delayMS(100);
    printString("setting AP \n\r");
    setCurrentAP(&conectionName[0], &password[0], NULL);
    
    delayMS(100);
    printString("getting AP connection \n\r");
    getCurrentAP();
//    void setCurrentAP(char * ssid, char * pwd, char * bssid) {
    getDeviceInfo();
    delayMS(100);
    int i;
    for(i = 1; i <= 0xF0; i = i << 1) {
        LATA = i;
        delayMS(100);
        LATA = 0;
        delayMS(100);
    }
     //write to the LCD as well
    LCD_DisplayClear();
    //enable errorlog first to show all errors
    show_errorlog(1);
    printString("connecting to timeserver \n\r");      
    esp_to_ntp(enable, timezone, &ntpServer[0]);
    delayMS(100);
    printString ("check time configuration \n\r");
    getTimeConfig();
    delayMS(100);
    printString("configure user for MQTT connection \n\r");
    config_user(linkID, scheme, &ClientId[0], &username[0], &MQTTpassword[0], cert_key_ID, CA_ID, &path[0]);
    delayMS(100);
//    printString(" show queury mqtt broker connections\n\r");
//    MQTT_brokerConnections();
//    delayMS(100);
//    printString("connect user to broker \n\r");
//    Connect_to_broker(linkID, &host[0], port, reconnect);
//    delayMS(100);
////    printString(" show queury mqtt broker connections again\n\r");
////    MQTT_brokerConnections();
////    delayMS(100);
//    printString("subscribing to a topic \n\r");
//    Sub_to_topic(linkID, &topic[0], qos);
//    delayMS(100);
//    printString("publish to a topic \n\r");
//    Pub_to_topic(linkID, &topic2[0], &data[0], qos, retain);


   
    
    while(1) {

//        if(-1 == establishSSLConnection("192.168.1.104", 4443)) {
//            delayMS(1000);
//        } else {
//            uint8_t status = getServerStatus("192.168.1.104", 4443);
//            switch(status) {
//                case 0: 
//                    delayMS(1000);
//                    break;
//                case 1: 
//                    blinkLED(0);
//                    break;
//                case 2: 
//                    blinkLEDS();
//                    break;
//                case 3: 
                    alternateLEDS();
//                    break;
//                default:
//                    delayMS(1000);
//                    break;
//            }
//        }
      
                        /*
        if(UART_AvaliableRx()){
           printString("rdy to sent to esp32 \n\r");

            cch = UART_GetCharPoll();
           //use the LCD display to visualize the received chars
            printf(strTxtp, " Received %c", cch);
            printString("chars received on lcd \n\r");

            LCD_WriteStringAtPos(strTxtp, 1, 0);
            //send the char back to UART
            printString("show sent char:\n\r");
            UART_PutChar(cch);
            printString("\n\r");
            printString("chars sent to uart\n\r");
            printString("rdy to receive data:\n\r");

        }*/
    }
    
}

//configure user settings for MQTT connection
void config_user(unsigned int linkID, unsigned int scheme, char *ClientId, char *username, char *password, unsigned  int cert_key_ID, unsigned int CA_ID, char *path) {
    printString("Configure user settings for MQTT connection...\r\n");
    char tx[0];
 
    sprintf(tx, "at+mqttusercfg=%d,%d,\"%s\",\"%s\",\"%s\",%d,%d,\"%s\"\r\n", linkID, scheme, ClientId, username, password, cert_key_ID, CA_ID, path);
    sendToESP(tx);
    delayMS(20);
        
    while(!(UART1_StatusGet() & UART1_RECEIVER_IDLE )) {
           // Wait for the data to fill the RX buffer
    }
    
    char rx[RX_BUF_SIZE];
    char * cur = rx;
    while(UART1_ReceiveBufferSizeGet() < 512) {
        *cur++ = UART1_Read();
    }
    *cur = '\0';
    printString(rx);
    
}