#!/bin/sh

# maintained in https://github.com/rwxrob/skilstak/ in
# projects/shell/powersource

if [ -t 1 ]; then
  w="\e[38;5;237m"
  b="\e[38;5;39m"
  g="\e[38;5;46m"
  s="\e[38;5;112m"
  y="\e[38;5;190m"
  o="\e[38;5;208m"
  r="\e[38;5;160m"
  v="\e[38;5;93m"
fi

f=0
if [ -n "$1" ]; then
  f="$1"
elif [ -n "$FTP" ]; then
  f="$FTP"
else
  read -r f
fi

k=0
if [ -n "$2" ]; then
  k="$2"
elif [ -n "$WEIGHT" ]; then
  k="$WEIGHT"
else
  read -r k
fi

h=0
if [ -n "$3" ]; then
  h="$3"
elif [ -n "$HEIGHT" ]; then
  h="$HEIGHT"
else
  read -r h
fi

echo   "          HEIGHT : $h"
echo   "          WEIGHT : $k"
echo   "             FTP : $f ($(echo "scale=2;$f/$k"|bc))"
echo
printf "${w}Recovery      (1):      😴 - %.0f\n"   "$(echo "$f*.56"|bc)"
printf "${b}Endurance     (2):     %.0f - %.0f\n" "$(echo "$f*.56"|bc)" "$(echo "$f*.75"|bc)"
printf "${g}Tempo         (3):     %.0f - %.0f\n" "$(echo "$f*.76"|bc)" "$(echo "$f*.90"|bc)"
printf "${s}SweetSpot     (3.5):   %.0f - %.0f\n" "$(echo "$f*.84"|bc)" "$(echo "$f*.97"|bc)"
printf "${y}Threshold     (4):     %.0f - %.0f\n" "$(echo "$f*.91"|bc)" "$(echo "$f*1.05"|bc)"
printf "${o}VO2 Max       (5):     %.0f - %.0f\n" "$(echo "$f*1.06"|bc)" "$(echo "$f*1.2"|bc)"
printf "${r}Anaerobic     (6):     %.0f - %.0f\n" "$(echo "$f*1.21"|bc)" "$(echo "$f*1.5"|bc)"
printf "${v}Neuromuscular (7):     %.0f - 🤮\n" "$(echo "$f*1.5"|bc)"