#!/usr/bin/zsh

# this is meant to be use from a crontab entry like so:
# min	hour	mday	month	wday	command
# 59	23	*	*	*	~/solar_power_wx/charge_bal_stats

HD="/home/ghz/solar_power_wx"
YD="$(date +%Y)"
DD="$(date +%Y%m%d)"
DATD="${HD}/data/${YD}"

cd "${HD}" || exit

CHG_BAL="$( ${HD}/power_balance "${DATD}/solar_power.${DD}" | grep Charge )"

echo -e "${DD}\t${CHG_BAL}" >> "${HD}/data/solar_power.charge_bal"
tail -30 "${HD}/data/solar_power.charge_bal" > "${HD}/data/solar_power.charge_bal.30"

/usr/bin/gnuplot "${HD}/charge_bal.gnuplot"