#!/bin/bash

PARENT_BAR="bottom"
PARENT_BAR_PID=$(pgrep -a "polybar" | grep "$PARENT_BAR" | cut -d" " -f1)

PLAYERS=$(playerctl -l)
readarray -t PLAYERS_ARRAY <<< "$PLAYERS"

PLAYER=

for CHECK_PLAYER in "${PLAYERS_ARRAY[@]}"; do
	PLAYERCTL_STATUS=$(playerctl status -p "$CHECK_PLAYER")
	if [ "$PLAYERCTL_STATUS" = "Stopped" ]; then
		continue
	elif [ "$PLAYERCTL_STATUS" = "Playing" ]; then
		PLAYER="$CHECK_PLAYER"
		break
	else
		PLAYER="$CHECK_PLAYER"
	fi
done

FORMAT="{{ title }} - {{ artist }}"

update_hooks() {
	while IFS= read -r id
	do
		polybar-msg -p "$id" hook music-play-pause $2 1>/dev/null 2>&1
	done < <(echo "$1")
}

PLAYERCTL_STATUS=$(playerctl --player=$PLAYER status 2>/dev/null)
EXIT_CODE=$?

if [ $EXIT_CODE -eq 0 ]; then
	STATUS=$PLAYERCTL_STATUS
else
	STATUS="No player is running"
	exit
fi

if [ "$1" == "--status" ]; then
	echo "$STATUS"
elif [ "$1" == "--toggle" ]; then
	playerctl --player=$PLAYER play-pause
elif [ "$1" == "--next" ]; then
	playerctl --player=$PLAYER next
elif [ "$1" == "--prev" ]; then
	playerctl --player=$PLAYER previous
else
	if [ "$STATUS" = "Stopped" ]; then
		echo "No music is playing"
	elif [ "$STATUS" = "Paused"  ]; then
		update_hooks "$PARENT_BAR_PID" 2
		playerctl --player=$PLAYER metadata --format "$FORMAT"
	elif [ "$STATUS" = "No player is running"  ]; then
		echo "$STATUS"
	else
		update_hooks "$PARENT_BAR_PID" 1
		playerctl --player=$PLAYER metadata --format "$FORMAT"
	fi
fi