#include <Arduino.h>
#include <WiFi.h>
#include "soc/soc.h"
#include "soc/rtc_cntl_reg.h"
#include "esp_camera.h"

const char* ssid = "netwerknaam";
const char* password = "netwerkwachtwoord";
String serverName = "websitewaarhetheenmoet";
String serverPath = "/paginawaarhetheenmoet.php";
int conn;
const int serverPort = 80;

WiFiClient client;

// CAMERA_MODEL_AI_THINKER
#define lampen 13
#define filmlamp 4
#define PWDN_GPIO_NUM 32
#define RESET_GPIO_NUM -1
#define XCLK_GPIO_NUM 0
#define SIOD_GPIO_NUM 26
#define SIOC_GPIO_NUM 27
#define Y9_GPIO_NUM 35
#define Y8_GPIO_NUM 34
#define Y7_GPIO_NUM 39
#define Y6_GPIO_NUM 36
#define Y5_GPIO_NUM 21
#define Y4_GPIO_NUM 19
#define Y3_GPIO_NUM 18
#define Y2_GPIO_NUM 5
#define VSYNC_GPIO_NUM 25
#define HREF_GPIO_NUM 23
#define PCLK_GPIO_NUM 22

const int timerInterval = 30000; // ca 3 sec. between each HTTP POST image
unsigned long vorigeMillis = 0; // last time image was sent

// setting PWM properties
const int freq = 5000;
const int ledChannel = 0;
const int resolutie = 8;

//---------------------------
void setup() {
Serial.begin(115200);
pinMode (filmlamp, OUTPUT); //Specify that LED pin is output
pinMode (lampen, OUTPUT); //Specify that LED pin is output
wifisetup();
camerasetup();
Serial.println("Setup klaar, eerste foto nu versturen.");
//digitalWrite (lampen,100);
digitalWrite (filmlamp,HIGH);
delay(500);
sendPhoto();
digitalWrite (filmlamp,LOW);
digitalWrite (lampen,0);
}
//-----------------------------
void loop()
{
unsigned long currentMillis = millis();
unsigned long tijd= currentMillis - vorigeMillis;

if (tijd >= (timerInterval-1500))
{
// lampen eerder aan zodat alles goed verlicht is
digitalWrite (lampen,255);
}
if (tijd >= timerInterval)
{
Serial.println("foto tijd");
sendPhoto();
vorigeMillis=currentMillis;
}
digitalWrite (lampen,0);
}
//-----------------
String sendPhoto()
{
String getAll;
String getBody;
digitalWrite(lampen,0);//Lampen uit i.v.m. spanning val
camera_fb_t * fb = NULL;
fb = esp_camera_fb_get(); //fb is dus foto
if(!fb)
{
Serial.println("Geen foto kunnen nemen.");
delay(1000);
ESP.restart();
}

Serial.println("Verbinden met server: " + serverName);

if (client.connect(serverName.c_str(), serverPort))
{
Serial.println("Verbonden met site.");
String head = "--RandomNerdTutorials\r\nContent-Disposition: form-data; name=\"imageFile\"; filename=\"Creality_3V2.jpg\"\r\nContent-Type: image/jpeg\r\n\r\n";
String tail = "\r\n--RandomNerdTutorials--\r\n";

uint32_t imageLen = fb->len;
uint32_t extraLen = head.length() + tail.length();
uint32_t totalLen = imageLen + extraLen;

client.println("POST " + serverPath + " HTTP/1.1");
client.println("Host: " + serverName);
client.println("Content-Length: " + String(totalLen));
client.println("Content-Type: multipart/form-data; boundary=RandomNerdTutorials");
client.println();
client.print(head);

uint8_t *fbBuf = fb->buf;
size_t fbLen = fb->len;
Serial.println("Foto oversturen in stukjes van 1024 bytes");
int lampteller;
for (size_t n=0; <fbLen; n=n+1024)
{
if (lampteller==0){digitalWrite(filmlamp,HIGH);Serial.println(lampteller);}
if (lampteller>=10){digitalWrite(filmlamp,LOW);lampteller=0;}
lampteller++;
//if (n+1024 < fbLen){Serial.println("Foto oversturen in stukjes.");}
if (n+1024 < fbLen)
{
client.write(fbBuf, 1024);
fbBuf += 1024;
}
else if (fbLen%1024>0)
{

size_t remainder = fbLen%1024;
client.write(fbBuf, remainder);
}
}
client.print(tail);
Serial.println("Alles verzonden.");
esp_camera_fb_return(fb);

int timoutTimer = 10000;
long startTimer = millis();
boolean state = false;
int teller=0;
while ((startTimer + timoutTimer) > millis())
{
Serial.print(".");
teller++;
if (teller>500){Serial.println("Geen verbinding met site.");}
delay(100);
while (client.available())
{
char c = client.read();
if (c == '\n')
{
if (getAll.length()==0) { state=true; }
getAll = "";
}
else if (c != '\r') { getAll += String(c); }
if (state==true) { getBody += String(c); }
startTimer = millis();
}
if (getBody.length()>0) { break; }
}
Serial.println();
client.stop();
Serial.println(getBody);
}else{
getBody = "Verbinding met " + serverName + " is mislukt.";
Serial.println(getBody);
}
//return getBody;
}
//-------------------------------------------
void camerasetup()
{
camera_config_t config;
config.ledc_channel = LEDC_CHANNEL_0;
config.ledc_timer = LEDC_TIMER_0;
config.pin_d0 = Y2_GPIO_NUM;
config.pin_d1 = Y3_GPIO_NUM;
config.pin_d2 = Y4_GPIO_NUM;
config.pin_d3 = Y5_GPIO_NUM;
config.pin_d4 = Y6_GPIO_NUM;
config.pin_d5 = Y7_GPIO_NUM;
config.pin_d6 = Y8_GPIO_NUM;
config.pin_d7 = Y9_GPIO_NUM;
config.pin_xclk = XCLK_GPIO_NUM;
config.pin_pclk = PCLK_GPIO_NUM;
config.pin_vsync = VSYNC_GPIO_NUM;
config.pin_href = HREF_GPIO_NUM;
config.pin_sscb_sda = SIOD_GPIO_NUM;
config.pin_sscb_scl = SIOC_GPIO_NUM;
config.pin_pwdn = PWDN_GPIO_NUM;
config.pin_reset = RESET_GPIO_NUM;
config.xclk_freq_hz = 20000000;
config.pixel_format = PIXFORMAT_JPEG;

// init with high specs to pre-allocate larger buffers
if(psramFound())
{
config.frame_size = FRAMESIZE_SVGA;
config.jpeg_quality = 7; //0-63 lower number means higher quality
config.fb_count = 2;
} else {
config.frame_size = FRAMESIZE_CIF;
config.jpeg_quality = 7; //0-63 lower number means higher quality
config.fb_count = 1;
}

// camera init
esp_err_t err = esp_camera_init(&config);
if (err != ESP_OK)
{
Serial.printf("Camera init failed with error 0x%x", err);
delay(1000);
ESP.restart();
}
}
//-----------------------------
void wifisetup()
{
WiFi.mode(WIFI_STA);
Serial.println();
Serial.print("Connecting to ");
Serial.println(ssid);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED)
{
Serial.print(".");
delay(100);
conn++;
if (conn>500)
{
Serial.println(".");
}
}
Serial.println();
Serial.print("ESP32-CAM IP Address: ");
Serial.println(WiFi.localIP());
}
//----------------------------------
void ledsetup()
{
// configure LED PWM functionalitites
ledcSetup(ledChannel, freq, resolutie);

// attach the channel to the GPIO to be controlled
ledcAttachPin(lampen, ledChannel);
}