#include <TFT_eSPI.h>
#include <SPI.h>

// --- Pin Connections for ESP32-C3 Mini + ILI9341 ---
// VCC   -> 3.3V
// GND   -> GND
// CS    -> GPIO10
// DC    -> GPIO6
// RST   -> GPIO7
// MOSI  -> GPIO4
// MISO  -> GPIO5 (optional, for read ops)
// SCK   -> GPIO3

// Define pins in TFT_eSPI User_Setup.h
// #define TFT_MISO 5
// #define TFT_MOSI 4
// #define TFT_SCLK 3
// #define TFT_CS   10
// #define TFT_DC   6
// #define TFT_RST  7

TFT_eSPI tft = TFT_eSPI();  // Create TFT instance

void setup() {
  tft.init();
  tft.setRotation(1);   // Landscape orientation, upright text
  tft.fillScreen(TFT_BLACK);

  // Splash screen
  tft.setTextColor(TFT_YELLOW, TFT_BLACK);
  tft.setTextDatum(MC_DATUM);
  tft.drawString("ESP32-C3 + ILI9341", 120, 160, 2);
  delay(2000);
}

void loop() {
  // Test 1: Color bars
  for (int i = 0; i < tft.height(); i++) {
    uint16_t color = tft.color565(i % 32 * 8, i % 64 * 4, i % 32 * 8);
    tft.drawFastHLine(0, i, tft.width(), color);
  }
  delay(2000);

  // Test 2: Gradient fill
  for (int x = 0; x < tft.width(); x++) {
    uint16_t color = tft.color565(x % 64 * 4, 128, 255 - (x % 64 * 4));
    tft.drawFastVLine(x, 0, tft.height(), color);
  }
  delay(2000);

  // Test 3: Shapes
  tft.fillScreen(TFT_BLACK);
  tft.fillCircle(60, 60, 40, TFT_RED);
  tft.fillRect(120, 40, 80, 60, TFT_BLUE);
  tft.drawTriangle(40, 200, 120, 200, 80, 120, TFT_GREEN);
  delay(2000);

  // Test 4: Text showcase
  tft.fillScreen(TFT_BLACK);
  tft.setTextColor(TFT_WHITE, TFT_BLACK);
  tft.drawString("Graphics Test", 10, 10, 4);
  tft.drawString("AI Centre Nandurbar", 10, 60, 2);
  delay(2000);
}