/*
 * 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 Files */
#include "SystemK.h"

static void Starting_Game__Responding_Entry(StateMachineContext_T * context);
static void Starting_Game__Responding_Do(StateMachineContext_T * context);
static void Starting_Game__Responding_Exit(StateMachineContext_T * context);

static TickType_t Period_Start = 0;
static uint_fast8_t N_Lights_Lit = 0;

static const char *KLOG_TAG = "STATE_STARTING_GAME__RESPONDING";

//! Activities for the **Responding** substate of the **Starting Game** state.
const StateActivity_T STATE_STARTING_GAME__RESPONDING_Activities =
{
   .Entry = Starting_Game__Responding_Entry,
   .Do = Starting_Game__Responding_Do,
   .Exit = Starting_Game__Responding_Exit
};

//! Sets up the Responding substate.
/*!
 *  \param  context Context in which this substate is being run.
 */
static void Starting_Game__Responding_Entry(StateMachineContext_T * context)
{
    // First of all, enter the state containing this substate.
    Starting_Game_Entry(context);
    
    LOG("Entering the Responding substate of the Starting Game state.");
    
    if (context->Cause_Of_Transition->ID == KEVENT_BLE_PACKET_RECEIVED)
    {
        if (((BLE_Packet_T *)context->Cause_Of_Transition->Data)->Generic.type == BLE_PACKET_TYPE_INSTIGATE_GAME)
        {
            uint32_t game_length_in_ms = ((BLE_Packet_T *)context->Cause_Of_Transition->Data)->Instigation.game_length_in_ms;
            Set_Time_Remaining_in_Game(game_length_in_ms);
            (void) SETTINGS_set_uint32_t(SYSTEMK_SETTING_T_GAME_LENGTH_in_ms, game_length_in_ms);

            uint32_t time_remaining_until_countdown_in_ms = ((BLE_Packet_T *)context->Cause_Of_Transition->Data)->Instigation.time_remaining_until_countdown_in_ms;
            Set_Time_Remaining_Until_Countdown(time_remaining_until_countdown_in_ms);
        
#ifdef LOG_STATE_MACHINE
            KLOG_TRACE(KLOG_TAG, "Game length: %lu ms", game_length_in_ms);
            vTaskDelay(pdMS_TO_TICKS(10));
            KLOG_TRACE(KLOG_TAG, "Time until countdown: %lu ms", time_remaining_until_countdown_in_ms);
#endif // LOG_STATE_MACHINE
        }
        
        BLE_FreePacketBuffer(context->Cause_Of_Transition->Data);
    }
}

//! Executes the Responding substate.
/*!
 *  \param  context Context in which this substate is being run.
 */
static void Starting_Game__Responding_Do(StateMachineContext_T * context)
{
    portBASE_TYPE xStatus;
    static KEvent_T Event;
    
    xStatus = Receive_KEvent(&Event);
    
    if (xStatus == pdPASS)
    {
        switch (Event.ID)
        {       
            default:
                // All events are ignored in this state.
                ProcessUnhandledEvent(&Event);
                break;
        }
    }

    // Wait for (T_start_game - T_instigation) before proceeding.
    if (GetTimeInState_in_ms(context) > Get_Time_Remaining_Until_Countdown_in_ms())
    {
        static KEvent_T Event;
        Event.ID = KEVENT_AUTOMATIC_TRANSITION;
        Event.Data = NULL;
        Transition_For_Event(context, STATE_STARTING_GAME__COUNTING_DOWN, &Event);
    }
    else
    {
        uint32_t period_time_in_ms = (xTaskGetTickCount() - Period_Start) * portTICK_PERIOD_MS;
        
        if (period_time_in_ms > 150)
        {
            // Toggle the lights.
            if (N_Lights_Lit == 0)
            {
                N_Lights_Lit = 5;
            }
            else
            {
                N_Lights_Lit = 0;
            }
            NeoPixelsAction_T neopixels_action = {.ID = NEOPIXELS_COUNTDOWN, .Prominence = NEOPIXELS_FOREGROUND, .Data = (void *)&N_Lights_Lit};
            xQueueSend(xQueueNeoPixels, &neopixels_action, 0);
            
            // Start a new period.
            Period_Start = xTaskGetTickCount();
        }
    }
}

//! Cleans up the Responding substate.
/*!
 *  \param  context Context in which this substate is being run.
 */
static void Starting_Game__Responding_Exit(StateMachineContext_T * context)
{
}