/*
 * This program source code file is part of SystemK, a library in the KTag project.
 *
 * 🛡️ <https://ktag.clubk.club> 🃞
 *
 * Copyright © 2016-2025 Joseph P. Kearney and the KTag developers.
 *
 * This program is free software: you can redistribute it and/or modify it under
 * the terms of the GNU Affero General Public License as published by the Free
 * Software Foundation, either version 3 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 Affero General Public License for more
 * details.
 *
 * There should be a copy of the GNU Affero General Public License in the LICENSE
 * file in the root of this repository.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "SystemK.h"

typedef enum
{
    STEP_LONG_DARK,
    STEP_BLINK_ONE,
    STEP_BLINK_TWO,
    STEP_BLINK_THREE,
    STEP_HEARTBEAT_GLOW
} TeamColorsStep_T;

static DisplayStyle_T Style = DISPLAY_STYLE_BLINK;
static TeamColorsStep_T Step = STEP_LONG_DARK;
static uint16_t Time_in_Animation_Step_in_ms = 0;
static color_t Team_Color = COLOR_BLACK;
static uint8_t Brightness = 0;
static uint8_t Phase = 0;
static const uint8_t LOW_BRIGHTNESS = 10;
static const uint8_t HIGH_BRIGHTNESS = 50;
static const uint16_t LONG_DARK_TIME_IN_ms = 20000;
static const uint16_t BLINK_TIME_ON_IN_ms = 100;
static const uint16_t BLINK_TIME_OFF_IN_ms = 100;

static void Reset(void * Data)
{
    // Start just before the dawn.
    Time_in_Animation_Step_in_ms = LONG_DARK_TIME_IN_ms;
    Style = NeoPixels_ToDisplayStyle(Data);
    Team_Color = HW_NeoPixels_Get_My_Color();
    NeoPixels_Set_Color_Range_On_All_Channels(0, CONFIG_KTAG_MAX_NEOPIXELS_PER_CHANNEL - 1, COLOR_BLACK);
}

static AnimationStepResult_T NextStep(void)
{
    Time_in_Animation_Step_in_ms += CONFIG_KTAG_ANIMATION_STEP_TIME_IN_ms;
    
    switch (Step)
    {
        default:
        case STEP_LONG_DARK:
            Brightness = LOW_BRIGHTNESS;
            if (Time_in_Animation_Step_in_ms > LONG_DARK_TIME_IN_ms)
            {
                Time_in_Animation_Step_in_ms = 0;
                if (Style == DISPLAY_STYLE_HEARTBEAT)
                {
                    Step = STEP_HEARTBEAT_GLOW;
                    Phase = 0;
                }
                else
                {
                    Step = STEP_BLINK_ONE;
                }
            }
        break;
            
        case STEP_BLINK_ONE:
            if (Time_in_Animation_Step_in_ms > (BLINK_TIME_ON_IN_ms + BLINK_TIME_OFF_IN_ms))
            {
                Brightness = HIGH_BRIGHTNESS;
                Time_in_Animation_Step_in_ms = 0;
                Step = STEP_BLINK_TWO;
            }
            else if (Time_in_Animation_Step_in_ms > BLINK_TIME_ON_IN_ms)
            {
                Brightness = LOW_BRIGHTNESS;
            }
            else
            {
                Brightness = HIGH_BRIGHTNESS;
            }
        break;
            
        case STEP_BLINK_TWO:
            if (Time_in_Animation_Step_in_ms > (BLINK_TIME_ON_IN_ms + BLINK_TIME_OFF_IN_ms))
            {
                Brightness = HIGH_BRIGHTNESS;
                Time_in_Animation_Step_in_ms = 0;
                Step = STEP_BLINK_THREE;
            }
            else if (Time_in_Animation_Step_in_ms > BLINK_TIME_ON_IN_ms)
            {
                Brightness = LOW_BRIGHTNESS;
            }
            else
            {
                Brightness = HIGH_BRIGHTNESS;
            }
        break;
            
        case STEP_BLINK_THREE:
            if (Time_in_Animation_Step_in_ms > (BLINK_TIME_ON_IN_ms + BLINK_TIME_OFF_IN_ms))
            {
                Brightness = LOW_BRIGHTNESS;
                Time_in_Animation_Step_in_ms = 0;
                Step = STEP_LONG_DARK;
            }
            else if (Time_in_Animation_Step_in_ms > BLINK_TIME_ON_IN_ms)
            {
                Brightness = LOW_BRIGHTNESS;
            }
            else
            {
                Brightness = HIGH_BRIGHTNESS;
            }
        break;
            
        case STEP_HEARTBEAT_GLOW:
                Brightness = Sine8[Phase] / 2;
                Phase++;
                
                if (Phase == 0)
                {
                    Brightness = LOW_BRIGHTNESS;
                    Time_in_Animation_Step_in_ms = 0;
                    Step = STEP_LONG_DARK;
                }
        break;
    }
    
#if (CONFIG_KTAG_N_NEOPIXEL_CHANNELS == 1)
    Set_Barrel_Flash(ApplyMask(Team_Color, Brightness));
    Set_Heart(COLOR_BLACK);
    Set_Square(COLOR_BLACK);
    Set_Circle(COLOR_BLACK);
    Set_Arrow(COLOR_BLACK);
#elif (CONFIG_KTAG_N_NEOPIXEL_CHANNELS == 4)
    NeoPixels_Set_Color(NEOPIXEL_CHANNEL_RECEIVER, RECEIVER_INDICATOR_PIXEL, ApplyMask(Team_Color, Brightness));
    NeoPixels_Set_Color(NEOPIXEL_CHANNEL_RECEIVER, RIGHT_RECEIVER_INDICATOR_PIXEL, ApplyMask(Team_Color, Brightness));
    NeoPixels_Set_Color(NEOPIXEL_CHANNEL_RECEIVER, LEFT_RECEIVER_INDICATOR_PIXEL, ApplyMask(Team_Color, Brightness));
#endif // CONFIG_KTAG_N_NEOPIXEL_CHANNELS

    return ANIMATION_ONGOING;
}

Animation_T Team_Colors_Animation = 
{
    .Reset = Reset,
    .NextStep = NextStep
};