/* Copyright 2017 MechMerlin <mechmerlin@gmail.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
#include "quantum.h"
#include "indicator_leds.h"

enum BACKLIGHT_AREAS {
  BACKLIGHT_ALPHA    = 0b0000001,
  BACKLIGHT_EXTRA    = 0b0000010,
  BACKLIGHT_MODNUM   = 0b0000100,
  BACKLIGHT_FROW     = 0b0001000,
  BACKLIGHT_RGB      = 0b0010000,
  BACKLIGHT_SWITCH   = 0b0001111
};

uint8_t backlight_rgb_r = 255;
uint8_t backlight_rgb_g = 0;
uint8_t backlight_rgb_b = 0;
uint8_t backlight_os_state = 0;
uint32_t backlight_layer_state = 0;

void backlight_toggle_rgb(bool enabled)
{
  if(enabled) {
    uint8_t rgb[17][3] = {
      {backlight_rgb_r, backlight_rgb_g, backlight_rgb_b},
      {backlight_rgb_r, backlight_rgb_g, backlight_rgb_b},
      {backlight_rgb_r, backlight_rgb_g, backlight_rgb_b},
      {backlight_rgb_r, backlight_rgb_g, backlight_rgb_b},
      {backlight_rgb_r, backlight_rgb_g, backlight_rgb_b},
      {backlight_rgb_r, backlight_rgb_g, backlight_rgb_b},
      {backlight_rgb_r, backlight_rgb_g, backlight_rgb_b},
      {backlight_rgb_r, backlight_rgb_g, backlight_rgb_b},
      {backlight_rgb_r, backlight_rgb_g, backlight_rgb_b},
      {backlight_rgb_r, backlight_rgb_g, backlight_rgb_b},
      {backlight_rgb_r, backlight_rgb_g, backlight_rgb_b},
      {backlight_rgb_r, backlight_rgb_g, backlight_rgb_b},
      {backlight_rgb_r, backlight_rgb_g, backlight_rgb_b},
      {backlight_rgb_r, backlight_rgb_g, backlight_rgb_b},
      {backlight_rgb_r, backlight_rgb_g, backlight_rgb_b},
      {backlight_rgb_r, backlight_rgb_g, backlight_rgb_b},
      {backlight_rgb_r, backlight_rgb_g, backlight_rgb_b}
    };
    backlight_set_rgb(rgb);
  } else {
    uint8_t rgb[17][3] = {
      {0, 0, 0},
      {0, 0, 0},
      {0, 0, 0},
      {0, 0, 0},
      {0, 0, 0},
      {0, 0, 0},
      {0, 0, 0},
      {0, 0, 0},
      {0, 0, 0},
      {0, 0, 0},
      {0, 0, 0},
      {0, 0, 0},
      {0, 0, 0},
      {0, 0, 0},
      {0, 0, 0},
      {0, 0, 0},
      {0, 0, 0}
    };
    backlight_set_rgb(rgb);
  }
}

void backlight_set_rgb(uint8_t cfg[17][3])
{
  cli();
  for(uint8_t i = 0; i < 17; ++i) {
    send_color(cfg[i][0], cfg[i][1], cfg[i][2], Device_PCBRGB);
  }
  sei();
  show();
}

void backlight_set(uint8_t level) {
  level & BACKLIGHT_ALPHA ? (PORTB |= 0b00000010) : (PORTB &= ~0b00000010);
  level & BACKLIGHT_EXTRA ? (PORTB |= 0b00000100) : (PORTB &= ~0b00000100);
  level & BACKLIGHT_MODNUM ? (PORTB |= 0b00001000) : (PORTB &= ~0b00001000);
  level & BACKLIGHT_FROW ? (PORTE |= 0b01000000) : (PORTE &= ~0b01000000);
  level & BACKLIGHT_RGB ? backlight_toggle_rgb(true) : backlight_toggle_rgb(false);
}

// Port from backlight_update_state
bool led_update_kb(led_t led_state) {
  bool res = led_update_user(led_state);
  if(res) {
    bool status[7] = {
      backlight_os_state & 2,
      backlight_os_state & 4,
      backlight_os_state & 1,
      backlight_layer_state & (1<<1),
      backlight_layer_state & (1<<2),
      backlight_layer_state & (1<<3),
      backlight_layer_state & (1<<4)
    };
    indicator_leds_set(status);
    backlight_os_state & 2 ? (PORTB &= ~0b00000001) : (PORTB |= 0b00000001);
    backlight_os_state & 4 ? (PORTB &= ~0b00010000) : (PORTB |= 0b00010000);
  }
  return res;
}