مساعد صوتي عربي

#include <Arduino.h>
#include <Wire.h>
#include <WiFi.h>
#include <WiFiClientSecure.h>
#include <HTTPClient.h>
#include <time.h>
#include <math.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

#define OLED_SDA 21
#define OLED_SCL 22
const char *WIFI_SSID = "Vodafone_VDSL";
const char *WIFI_PASSWORD = "xxZRTDetcEbAsubC";
const uint8_t SCREEN_WIDTH = 128, SCREEN_HEIGHT = 64;
const unsigned long LAYOUT_INTERVAL_MS = 3UL * 60UL * 60UL * 1000UL;
const unsigned long MOTIVATION_INTERVAL_MS = 10UL * 60UL * 1000UL;
const unsigned long MOTIVATION_SHOW_MS = 20UL * 1000UL;
const unsigned long WEATHER_INTERVAL_MS = 30UL * 60UL * 1000UL;
const time_t EXAM_UNIX = 1808438400;

Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);
unsigned long lastLayoutChange, lastMotivationChange, motivationStarted, lastWeatherUpdate;
int currentLayout = 0, currentMotivation = -1, nextMotivation = 0, weatherTemp = 0;
bool weatherKnown = false, displayReady = false;
String lastScreen;
const char *MESSAGES[] = {"Success is waiting for you", "You will be first in Sudan: 99%", "Your universe is waiting for you", "God has chosen you", "Be yourself"};
const uint8_t MESSAGE_COUNT = 5;

bool timeIsReady() { return time(nullptr) > 1700000000; }
int daysRemaining() {
  if (!timeIsReady()) return 0;
  double seconds = difftime(EXAM_UNIX, time(nullptr));
  return seconds <= 0 ? 0 : (int)ceil(seconds / 86400.0);
}
void drawCentered(const String &text, int y, uint8_t size) {
  display.setTextSize(size); int16_t x1, y1; uint16_t w, h;
  display.getTextBounds(text.c_str(), 0, y, &x1, &y1, &w, &h);
  display.setCursor((SCREEN_WIDTH - w) / 2, y); display.print(text);
}
void updateWeather() {
  if (WiFi.status() != WL_CONNECTED) return;
  WiFiClientSecure client; client.setInsecure(); HTTPClient http;
  if (!http.begin(client, "https://api.open-meteo.com/v1/forecast?latitude=15.50&longitude=32.56&current=temperature_2m")) return;
  if (http.GET() == HTTP_CODE_OK) {
    String body = http.getString(); int key = body.indexOf("\"temperature_2m\":");
    if (key >= 0) { int start = key + 17, end = body.indexOf(',', start); if (end < 0) end = body.indexOf('}', start);
      weatherTemp = (int)roundf(body.substring(start, end).toFloat()); weatherKnown = true; lastScreen = ""; }
  }
  http.end();
}
void drawLayout1(const char *clockText, const char *dateText, const String &weather, int days) {
  display.setTextSize(1); display.setCursor(0, 0); display.print(weather); display.drawFastHLine(0, 10, 128, SSD1306_WHITE);
  drawCentered(clockText, 16, 2); drawCentered(dateText, 37, 1); display.drawRect(1, 50, 126, 13, SSD1306_WHITE);
  drawCentered("EXAM: " + String(days) + " DAYS LEFT", 53, 1);
}
void drawLayout2(const char *clockText, const char *dateText, const String &weather, int days) {
  drawCentered(clockText, 10, 2); display.drawFastHLine(7, 33, 114, SSD1306_WHITE);
  drawCentered(dateText, 37, 1); drawCentered(weather, 47, 1); drawCentered("Sudan Exam: " + String(days) + "d", 55, 1);
}
void drawLayout3(const char *clockText, const char *dateText, const String &weather, int days) {
  display.drawRect(0, 0, 128, 64, SSD1306_WHITE); display.drawRect(2, 2, 124, 60, SSD1306_WHITE);
  drawCentered("STUDY CLOCK", 7, 1); display.drawFastHLine(7, 17, 114, SSD1306_WHITE);
  drawCentered(clockText, 22, 2); drawCentered(dateText, 41, 1); drawCentered(weather + " Exam:" + String(days) + "d", 52, 1);
}
void drawMotivation(const String &message) {
  display.drawRect(0, 0, 128, 64, SSD1306_WHITE); drawCentered("KEEP GOING", 8, 1); display.drawFastHLine(12, 19, 104, SSD1306_WHITE);
  int split = message.length() > 19 ? message.lastIndexOf(' ', 19) : -1;
  if (split > 0) { drawCentered(message.substring(0, split), 29, 1); drawCentered(message.substring(split + 1), 42, 1); }
  else drawCentered(message, 35, 1); drawCentered("Every step counts", 53, 1);
}
void drawScreen() {
  if (!displayReady) return;
  char clockText[10] = "--:--", dateText[18] = "Connecting..."; struct tm timeinfo;
  if (timeIsReady()) { time_t now = time(nullptr); localtime_r(&now, &timeinfo); strftime(clockText, sizeof(clockText), "%I:%M %p", &timeinfo); strftime(dateText, sizeof(dateText), "%a %d %b", &timeinfo); }
  String weather = weatherKnown ? "Khartoum: " + String(weatherTemp) + "C" : "Weather: waiting";
  String state = String(currentLayout) + clockText + dateText + weather + String(currentMotivation);
  if (state == lastScreen) return; lastScreen = state; display.clearDisplay(); display.setTextColor(SSD1306_WHITE);
  if (currentMotivation >= 0) drawMotivation(MESSAGES[currentMotivation]);
  else if (currentLayout == 0) drawLayout1(clockText, dateText, weather, daysRemaining());
  else if (currentLayout == 1) drawLayout2(clockText, dateText, weather, daysRemaining());
  else drawLayout3(clockText, dateText, weather, daysRemaining());
  display.display();
}
void setup() {
  Serial.begin(115200); Wire.begin(OLED_SDA, OLED_SCL); displayReady = display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
  WiFi.mode(WIFI_STA); WiFi.begin(WIFI_SSID, WIFI_PASSWORD); configTzTime("CAT-2", "pool.ntp.org", "time.nist.gov");
  lastLayoutChange = lastMotivationChange = millis(); drawScreen();
}
void loop() {
  unsigned long now = millis();
  if (WiFi.status() != WL_CONNECTED) { static unsigned long lastReconnect = 0; if (now - lastReconnect >= 15000UL) { lastReconnect = now; WiFi.disconnect(); WiFi.begin(WIFI_SSID, WIFI_PASSWORD); } }
  else if (!weatherKnown || now - lastWeatherUpdate >= WEATHER_INTERVAL_MS) { lastWeatherUpdate = now; updateWeather(); }
  if (now - lastLayoutChange >= LAYOUT_INTERVAL_MS) { lastLayoutChange = now; currentLayout = (currentLayout + 1) % 3; lastScreen = ""; }
  if (currentMotivation < 0 && now - lastMotivationChange >= MOTIVATION_INTERVAL_MS) { currentMotivation = nextMotivation; nextMotivation = (nextMotivation + 1) % MESSAGE_COUNT; motivationStarted = now; lastMotivationChange = now; lastScreen = ""; }
  if (currentMotivation >= 0 && now - motivationStarted >= MOTIVATION_SHOW_MS) { currentMotivation = -1; lastScreen = ""; }
  drawScreen(); delay(50);
}