#!/bin/bash

runtime="${XDG_RUNTIME_DIR}/i3blocks"
[[ ! -d "$runtime" ]] && mkdir -p "$runtime"

human_time() {
	local seconds="${1}"
	local minutes=$(( seconds / 60 ))
	local hours=$(( minutes / 60 ))
	minutes=$(( minutes % 60 ))
	printf "%d:%02d\n" "$hours" "$minutes"
	return
}

# Récupération des infos de la batterie

source /sys/class/power_supply/BAT1/uevent

# %age réel
#percentage="$POWER_SUPPLY_CAPACITY"
# %age relatif aux 80 % limités dans le BIOS
percentage=$(( POWER_SUPPLY_CHARGE_NOW * 100 / 4450400 ))

status="$POWER_SUPPLY_STATUS"
if [[ "$status" == "Charging" && "$percentage" -eq 80 ]]
then
	status="Full"
fi

time="$(date +%s)"

if [[ -f "${runtime}/bat" ]]
then
	mapfile -t old < "${runtime}/bat"
fi

if [[ "${old[0]}" != "$status" ]]
then
	printf "%s\n" "$status" "$time" "$POWER_SUPPLY_CHARGE_NOW" > "${runtime}/bat"
fi


if [[ "$status" == "Discharging" ]]
then
	remaining_secs="$(( POWER_SUPPLY_CHARGE_NOW / ((old[2] - POWER_SUPPLY_CHARGE_NOW) / (time - old[1])) ))"
else
	remaining_secs="$(( (4450400 - POWER_SUPPLY_CHARGE_NOW) / ((POWER_SUPPLY_CHARGE_NOW - old[2]) / (time - old[1])) ))"
fi

remaining="$(human_time "$remaining_secs")"

# Définition des couleurs
dis_colors=("#F2777A" "#F2777A" "#F99157" "#F99157" "#FFCC66" "#FFCC66" "#99CC99" "#99CC99")
charging_color="#66CCCC"
ac_color="#6699CC"
full_color="#D3D0C8"

# Création de la barre « graphique », 48 états affichables

## à partir du pourcentage de charge

#percents=$(( percentage / 2 ))
#(( percents > 48 )) && percents=48

## à partir des données brutes

### Relatif à 100 %
#percents=$(( POWER_SUPPLY_CHARGE_NOW * 48 / POWER_SUPPLY_CHARGE_FULL ))

### Relatif à 80 % (limite de charge du BIOS)
percents=$(( POWER_SUPPLY_CHARGE_NOW * 48 / 4450400 ))


full_squares=$(( percents / 8 ))
for t in $(seq 1 $full_squares)
do
	squares+="█"
done

if [[ $(( percents - ( full_squares * 8 ) )) -eq 7 ]]
then
	#squares+="█"
	squares+="▉"
	#squares+="▇"
elif [[  $(( percents - ( full_squares * 8 ) )) -eq 6 ]]
then
	#squares+="▓"
	squares+="▊"
	#squares+="▆"
elif [[  $(( percents - ( full_squares * 8 ) )) -eq 5 ]]
then
	#squares+="▓"
	squares+="▋"
	#squares+="▅"
elif [[  $(( percents - ( full_squares * 8 ) )) -eq 4 ]]
then
	#squares+="▒"
	squares+="▌"
	#squares+="▄"
elif [[  $(( percents - ( full_squares * 8 ) )) -eq 3 ]]
then
	#squares+="▒"
	squares+="▍"
	#squares+="▃"
elif [[  $(( percents - ( full_squares * 8 ) )) -eq 2 ]]
then
	#squares+="░"
	squares+="▎"
	#squares+="▂"
elif [[  $(( percents - ( full_squares * 8 ) )) -eq 1 ]]
then
	#squares+="░"
	squares+="▏"
	#squares+="▁"
fi

# Complétion de la barre afin d'avoir une taille fixe
blanks=$(( 6 - ${#squares} ))
for t in $(seq 1 $blanks)
do
	squares+=" "
done

# Choix de la couleur
case "${status}" in
"Charging")
	color="$charging_color"
;;
"Full")
	color="$full_color"
;;
"AC")
	color="$ac_color"
;;
"Discharging"|"Unknown")
	if (( percentage >= 0 && percentage < 10 )); then
		color="${dis_colors[0]}"
	elif (( percentage >= 10 && percentage < 20 )); then
		color="${dis_colors[1]}"
	elif (( percentage >= 20 && percentage < 30 )); then
		color="${dis_colors[2]}"
	elif (( percentage >= 30 && percentage < 40 )); then
		color="${dis_colors[3]}"
	elif (( percentage >= 40 && percentage < 60 )); then
		color="${dis_colors[4]}"
	elif (( percentage >= 60 && percentage < 70 )); then
		color="${dis_colors[5]}"
	elif (( percentage >= 70 && percentage < 80 )); then
		color="${dis_colors[6]}"
	elif (( percentage >= 80 )); then
		color="${dis_colors[7]}"
	fi
;;
esac

# Format détaillé en cas de clic
if [[ -n "$BLOCK_BUTTON" ]]
then
	message="<span foreground=\"$color\">${status} ${percentage}%</span> ${remaining}"
	message=${message% }
else
	message="<span foreground=\"$color\" background=\"#515151\">$squares</span> ${remaining}"
fi

# Affichage
echo "bat $message"
echo "bat <span foreground=\"$color\">${percentage}%</span>"