/*
 * player_actions.c
 * Code related to the player states and actions
 *
 *  Created on: Oct 17, 2025
 *      Author: sowgro
 */

#include <parser.h>
#include <player.h>
#include <stdio.h>
#include <stm32l4xx.h>
#include "song.h"
#include "LED.h"
#include "systick.h"

static uint8_t state = STOPPED_STATE;

/**
 * Returns the current player state to other files
 */
uint8_t player_get_state() {
	return state;
}

/**
 * Sets the current player state from other files
 */
void player_set_state(uint8_t newState) {
	state = newState;
}

/**
 * Prints the help message
 */
void player_help() {
	printf("\r***REMOTE LED CONTROL MENU***\r\n");
	printf("Available User Commands:\r\n");
	printf("NEXT - Show next song info\r\n");
	printf("PLAY - Play the song (LED on)\r\n");
	printf("PAUSE - Pause the song (LED flash)\r\n");
	printf("STOP - Stop the song (LED off)\r\n");
}

/**
 * Advances the player to the next song.
 */
void player_next() {
	static int current_song = -1;
	current_song++;
	if (current_song > 4)
		current_song = 0;

	void *song = get_song(current_song).p_song;
	parse_song(song);

	song_info_t song_info = parser_get_song_info();
	printf("Song #%i\r\n", current_song + 1);
	if (song_info.title)
		printf("Title: %s\r\n", song_info.title);
	if (song_info.copyright)
		printf("Copyright: %s\r\n", song_info.copyright);
	if (song_info.tempo)
		printf("Tempo: %i\r\n", song_info.tempo);
}

/**
 * Switches to the play state
 */
void player_play() {
	state = PLAYING_STATE;
	LED_On();
}

/**
 * Switches to the pause state
 */
void player_pause() {
	state = PAUSED_STATE;
}

/**
 * Switches to the stop state
 */
void player_stop() {
	state = STOPPED_STATE;
	LED_Off();
}

/**
 * Toggles the LED every second if in pause mode
 */
void player_tick() {
	int count = systick_get_count();
	switch (state) {
	case PAUSED_STATE:
	    if(!(count & 1023)) {
	    	LED_Toggle();
	    }; break;
	case PLAYING_STATE:
		parser_play_notes(count); break;
	}
}