#include <WiFi.h>
#include <HTTPClient.h>
#include "esp_camera.h"

#define PIR 15
#define LED 23
#define TRIGGER_PIN 21
#define ECHO_PIN 19

int data, cm;

const char* ssid = "Your_WiFi_SSID";
const char* password = "Your_WiFi_Password";
const char* lineToken = "Your_Line_Token";

// Camera configuration
const char* camera_model = "esp32cam";
const int camera_reset_pin = -1; // Set to -1 if not used

// Pin configuration for the camera
const int camera_pins[] = {
    CAM_PIN_PWDN,  // Power down control
    CAM_PIN_RESET, // Reset control
    CAM_PIN_XCLK,  // XCLK
    CAM_PIN_SIOD,  // SIOD
    CAM_PIN_SIOC,  // SIOC
    CAM_PIN_Y9,    // Y9
    CAM_PIN_Y8,    // Y8
    CAM_PIN_Y7,    // Y7
    CAM_PIN_Y6,    // Y6
    CAM_PIN_Y5,    // Y5
    CAM_PIN_Y4,    // Y4
    CAM_PIN_Y3,    // Y3
    CAM_PIN_Y2,    // Y2
    CAM_PIN_VSYNC, // VSYNC
    CAM_PIN_HREF,  // HREF
    CAM_PIN_PCLK,  // PCLK
    CAM_PIN_SDA,   // I2C SDA
    CAM_PIN_SCL    // I2C SCL
};

camera_config_t camera_config;

void sendLineNotifyWithImage(const char* message, uint8_t* imageData, size_t imageLength) {
    WiFiClient client;
    HTTPClient http;

    // Create boundary for multipart/form-data
    String boundary = "--------------------------" + String(random(0xffffff), HEX);

    String data = "";
    data += "--" + boundary + "\r\n";
    data += "Content-Disposition: form-data; name=\"message\"\r\n\r\n";
    data += message + "\r\n";
    data += "--" + boundary + "\r\n";
    data += "Content-Disposition: form-data; name=\"imageFile\"; filename=\"image.jpg\"\r\n";
    data += "Content-Type: image/jpeg\r\n\r\n";

    String request = "https://notify-api.line.me/api/notify";
    request += "?HTTP/1.1";

    http.begin(request);
    http.addHeader("Authorization", "Bearer " + String(lineToken));
    http.addHeader("Content-Type", "multipart/form-data; boundary=" + boundary);

    int httpResponseCode = http.sendRequest("POST", data, imageData, imageLength);

    if (httpResponseCode > 0) {
        Serial.println("Line Notify message sent successfully.");
    } else {
        Serial.println("Failed to send Line Notify message.");
    }
    http.end();
}

void setup() {
    Serial.begin(115200);
    Serial.println("16-8");

    pinMode(PIR, INPUT);
    pinMode(LED, OUTPUT);
    pinMode(TRIGGER_PIN, OUTPUT);
    pinMode(ECHO_PIN, INPUT);

    camera_config.ledc_channel = LEDC_CHANNEL_0;
    camera_config.ledc_timer = LEDC_TIMER_0;
    camera_config.pin_d0 = CAM_PIN_PWDN;
    camera_config.pin_d1 = CAM_PIN_RESET;
    camera_config.pin_d2 = -1;
    camera_config.pin_d3 = -1;
    camera_config.pin_d4 = -1;
    camera_config.pin_d5 = -1;
    camera_config.pin_d6 = -1;
    camera_config.pin_d7 = -1;
    camera_config.pin_xclk = CAM_PIN_XCLK;
    camera_config.pin_pclk = CAM_PIN_PCLK;
    camera_config.pin_vsync = CAM_PIN_VSYNC;
    camera_config.pin_href = CAM_PIN_HREF;
    camera_config.pin_sscb_sda = CAM_PIN_SIOD;
    camera_config.pin_sscb_scl = CAM_PIN_SIOC;
    camera_config.pin_pwdn = CAM_PIN_PWDN;
    camera_config.pin_reset = CAM_PIN_RESET;

    if (esp_camera_init(&camera_config) != ESP_OK) {
        Serial.println("Camera initialization failed.");
        return;
    }

    WiFi.begin(ssid, password);
    while (WiFi.status() != WL_CONNECTED) {
        delay(1000);
        Serial.println("Connecting to Wi-Fi...");
    }
    Serial.println("Wi-Fi connection successful.");
}

void loop() {
    long duration, distance;
    digitalWrite(TRIGGER_PIN, LOW);
    delayMicroseconds(2);
    digitalWrite(TRIGGER_PIN, HIGH);
    delayMicroseconds(10);
    digitalWrite(TRIGGER_PIN, LOW);
    duration = pulseIn(ECHO_PIN, HIGH);
    distance = (duration / 2) / 29.1;

    if (digitalRead(PIR) == HIGH) {
        camera_fb_t *fb = esp_camera_fb_get();
        String message = "PIR can detect something!\nDistance: " + String(distance) + " cm";
        sendLineNotifyWithImage(message, fb->buf, fb->len);
        esp_camera_fb_return(fb);
        digitalWrite(LED, HIGH);
    } else if (digitalRead(PIR) == LOW) {
        digitalWrite(LED, LOW);
    }

    delay(1000);
}