#include <SPI.h>
#include <SD.h>
#include <WiFiClient.h>
#include <WiFiClientSecure.h>
#include <HTTPClient.h>
#include <WiFi.h>

#define SD_CS 5

const char* path="/sourceF.txt";//path for sd card

//url for http
const char* url="https://raw.githubusercontent.com/dee362-lab/smart-parking-system/main/highfile";

//wifi credential
const char* username="Wokwi-GUEST";
const char* password="";


//creat the object
HTTPClient http;
WiFiClientSecure client;
//cheking wifi connectivity
void wificheking(){
    int wifitry=0;
    while((WiFi.status()!=WL_CONNECTED)){
     Serial.println("conecting wifi..");
     wifitry+=1;
    delay(500);
    if(wifitry>500){
      Serial.println("fail to connect wifi");
      return;
    }
    }
    Serial.println("Wifi is connected");

}
//for downloading the file
void downloadfile(const char* path,const char* url){
  client.setInsecure();
  http.setTimeout(10000); // Set timeout to 10 seconds
     if (!http.begin(client, url)) {  // Use WiFiClientSecure for HTTPS
        Serial.println("Failed to connect to server");
        return;
    }

  SD.begin();
    if (!SD.begin(SD_CS)) {
    Serial.println("Card Mount Failed");
    return;
  }
  int httpres=http.GET();
  if(httpres==200){
    File file=SD.open(path,"w");
    if(!file){
      Serial.println("cannot open the file ");
      return;
    }
        WiFiClient* stream = http.getStreamPtr();
    uint8_t buffer[1024];
    size_t size;
    unsigned long start = millis();
    int totalbyte=0;
    

  while (http.connected()) {
    if (stream->available()) {
        size = stream->read(buffer, sizeof(buffer));
        if (size > 0) {
            file.write(buffer, size);
            totalbyte += size;
        }
    }
}

    file.close();
    unsigned long duration = millis() - start;
    float speed = (totalbyte / 1024.0) / (duration / 1000.0);
    Serial.printf("File downloaded and saved to SD card in %lu ms\n", duration);
    Serial.printf("total bytes %d \n",totalbyte);
    Serial.printf("total download spedd is %d kBps\n",speed);
  
  }
  else {
    Serial.printf("http error %d",httpres);
  }
  http.end();
}

void readfile(const char* path){
  File file=SD.open(path,"r");
  if(!file){
    Serial.print("cannnot oen the file for reading");
  }
  while(file.available()){
    Serial.write(file.read());
  }
file.close();
}
void setup() {
  Serial.begin(115200);
  WiFi.begin(username,password);
  wificheking();
  downloadfile(path,url);

}

void loop() {
  // Nothing here
}