#ifndef PAPER_H_
#define PAPER_H_

#include <lua.h>
#include <lauxlib.h>

#include <epdiy.h>
#include "departure_mono_11.h"
#include "departure_mono_22.h"

#define WAVEFORM EPD_BUILTIN_WAVEFORM

EpdiyHighlevelState hl;
uint8_t* fb;

static int init (lua_State *L) {
    epd_init(&epd_board_lilygo_t5_47, &ED097TC2, EPD_LUT_64K);
    // epd_set_vcom(1560);
    hl = epd_hl_init(WAVEFORM);
    epd_set_rotation(EPD_ROT_LANDSCAPE);
    fb = epd_hl_get_framebuffer(&hl);
    return 0;
}

static int clear (lua_State *L){
    epd_clear();
    return 0;
}

static int get_width (lua_State *L) {
    int width = epd_rotated_display_width();
    lua_pushnumber(L, width);
    return 1;
}

static int get_height (lua_State *L) {
    int height = epd_rotated_display_height();
    lua_pushnumber(L, height);
    return 1;
}

static int draw_line (lua_State *L) {
    return 0;
}

static int update (lua_State *L) {
    int temperature = 25;
    epd_poweron();
    epd_hl_update_screen(&hl, MODE_GC16, temperature);
    epd_poweroff();
    return 0;
}

static const struct luaL_Reg paper[] = {
  {"init", init},
  {"clear", clear},

  {"get_width", get_width},
  {"get_height", get_height},

  {"draw_line", draw_line},
  {"update", update},

  {NULL, NULL},
};

int luaopen_paper (lua_State *L) {
    luaL_newlib(L, paper);
    return 1;
}

#endif // PAPER_H_