#pragma once

#define LGFX_USE_V1
#include <LovyanGFX.hpp>
#include <lgfx/v1/platforms/esp32s3/Panel_RGB.hpp>
#include <lgfx/v1/platforms/esp32s3/Bus_RGB.hpp>

// ── Display dimensions ──
#define TFT_HOR_RES   800
#define TFT_VER_RES   480

// ── Touch I2C (from Westcott example) ──
#define TOUCH_SDA     8
#define TOUCH_SCL     9
#define TOUCH_INT     4
#define TOUCH_RST     -1

// ── CH422G Expander pins ──
#define TP_RST        1
#define LCD_BL        2
#define LCD_RST       3
#define SD_CS         4
#define USB_SEL       5

class LGFX : public lgfx::LGFX_Device {
public:
  lgfx::Bus_RGB       _bus_instance;
  lgfx::Panel_RGB     _panel_instance;
  lgfx::Touch_GT911   _touch_instance;

  LGFX(void) {
    // Panel config
    {
      auto cfg = _panel_instance.config();
      cfg.memory_width  = TFT_HOR_RES;
      cfg.memory_height = TFT_VER_RES;
      cfg.panel_width   = TFT_HOR_RES;
      cfg.panel_height  = TFT_VER_RES;
      cfg.offset_x = 0;
      cfg.offset_y = 0;
      _panel_instance.config(cfg);
    }

    // RGB parallel bus config (from Westcott)
    {
      auto cfg = _bus_instance.config();
      cfg.panel = &_panel_instance;

      // Blue channel
      cfg.pin_d0  = 14;
      cfg.pin_d1  = 38;
      cfg.pin_d2  = 18;
      cfg.pin_d3  = 17;
      cfg.pin_d4  = 10;

      // Green channel
      cfg.pin_d5  = 39;
      cfg.pin_d6  = 0;
      cfg.pin_d7  = 45;
      cfg.pin_d8  = 48;
      cfg.pin_d9  = 47;
      cfg.pin_d10 = 21;

      // Red channel
      cfg.pin_d11 = 1;
      cfg.pin_d12 = 2;
      cfg.pin_d13 = 42;
      cfg.pin_d14 = 41;
      cfg.pin_d15 = 40;

      // Timing
      cfg.pin_henable = 5;
      cfg.pin_vsync   = 3;
      cfg.pin_hsync   = 46;
      cfg.pin_pclk    = 7;
      cfg.freq_write  = 14000000;

      cfg.hsync_polarity    = 0;
      cfg.hsync_front_porch = 20;
      cfg.hsync_pulse_width = 10;
      cfg.hsync_back_porch  = 10;

      cfg.vsync_polarity    = 0;
      cfg.vsync_front_porch = 10;
      cfg.vsync_pulse_width = 10;
      cfg.vsync_back_porch  = 10;

      cfg.pclk_active_neg = 0;
      cfg.de_idle_high     = 0;
      cfg.pclk_idle_high   = 0;

      _bus_instance.config(cfg);
    }
    _panel_instance.setBus(&_bus_instance);

    // Touch config (I2C port 1, address 0x14 - from Westcott!)
    {
      auto cfg = _touch_instance.config();
      cfg.x_min = 0;
      cfg.x_max = TFT_HOR_RES - 1;
      cfg.y_min = 0;
      cfg.y_max = TFT_VER_RES - 1;
      cfg.pin_int  = TOUCH_INT;
      cfg.pin_rst  = TOUCH_RST;
      cfg.bus_shared = false;
      cfg.offset_rotation = 0;
      cfg.i2c_port   = I2C_NUM_1;  // IMPORTANT: Port 1, not 0!
      cfg.pin_sda    = TOUCH_SDA;
      cfg.pin_scl    = TOUCH_SCL;
      cfg.freq       = 400000;
      cfg.i2c_addr   = 0x14;       // IMPORTANT: Address 0x14, not 0x5D!
      _touch_instance.config(cfg);
      _panel_instance.setTouch(&_touch_instance);
    }

    setPanel(&_panel_instance);
  }
};