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/* Copyright 2021 HorrorTroll <https://github.com/HorrorTroll>
 *
 * 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/>.
 */

// OLED animation
#include "lib/wave.h"

#ifdef OLED_ENABLE
    static void render_layer_info(void) {
        switch (get_highest_layer(layer_state)) {
            case 0:
                oled_write_P(PSTR("       QWERTY        "), false);
                break;
            case 1:
                oled_write_P(PSTR("      Function       "), false);
                break;
            default:
                oled_write_P(PSTR("      Undefined      "), false);
        }
    }

    static void render_layer_number(void) {
        switch (get_highest_layer(layer_state)) {
            case 0:
                oled_write_P(PSTR("0"), false);
                break;
            case 1:
                oled_write_P(PSTR("1"), false);
                break;
            default:
                oled_write_P(PSTR("X"), false);
        }
    }

    bool oled_task_user(void) {
        render_layer_info();

        // sleep if it has been long enough since we last got a char
        if (timer_elapsed32(wave_sleep) > OLED_TIMEOUT) {
            oled_off();
        } else {
            oled_on();
        }
        // time for the next frame?
        if (timer_elapsed(wave_timer) > FRAME_TIMEOUT) {
            wave_timer = timer_read();
            render_frame();
        }

        oled_set_cursor(0, 3);
        oled_write_P(PSTR("      Layer: "), false);
        render_layer_number();

        return true;
    }
#endif