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

// Pin definitions for XIAO ESP32-C3
#define TFT_MISO 5   // D5
#define TFT_MOSI 6   // D6
#define TFT_SCLK 4   // D4
#define TFT_CS   10  // D10
#define TFT_DC   2   // D2
#define TFT_RST  3   // D3

TFT_eSPI tft = TFT_eSPI();

void setup() {
  tft.init();
  tft.setRotation(1);
  tft.fillScreen(TFT_BLACK);
  tft.setTextColor(TFT_YELLOW, TFT_BLACK);
  tft.setTextSize(2);
  tft.drawString("XIAO ESP32-C3", 60, 20);
  tft.drawString("ILI9341 Benchmark", 40, 50);
  delay(1000);
}

void loop() {
  // 1️⃣ Color fill test
  uint16_t colors[] = {TFT_RED, TFT_GREEN, TFT_BLUE, TFT_CYAN, TFT_MAGENTA, TFT_YELLOW, TFT_WHITE};
  for (int i = 0; i < 7; i++) {
    tft.fillScreen(colors[i]);
    delay(300);
  }

  // 2️⃣ Gradient test
  for (int y = 0; y < 240; y++) {
    tft.drawFastHLine(0, y, 320, tft.color565(y, 255 - y, y / 2));
  }
  delay(500);

  // 3️⃣ Circle and rectangle test
  for (int i = 0; i < 10; i++) {
    tft.fillCircle(random(20, 300), random(20, 220), random(10, 40), colors[random(0, 7)]);
    tft.fillRect(random(0, 280), random(0, 200), random(20, 60), random(20, 60), colors[random(0, 7)]);
    delay(200);
  }

  // 4️⃣ Line pattern test
  tft.fillScreen(TFT_BLACK);
  for (int i = 0; i < 320; i += 10) {
    tft.drawLine(0, 0, i, 240, TFT_GREEN);
    tft.drawLine(320, 240, i, 0, TFT_BLUE);
  }
  delay(500);

  // 5️⃣ Text scroll test
  tft.fillScreen(TFT_BLACK);
  tft.setTextColor(TFT_WHITE);
  for (int y = 240; y > -20; y -= 5) {
    tft.fillScreen(TFT_BLACK);
    tft.drawString("XIAO ESP32-C3 + ILI9341", 40, y);
    delay(50);
  }
}