#!/bin/bash

url="http://chart.apis.google.com/chart?"

# title
chtt="What+are+the+top+3+issues+facing+Gentoo?"

# color
chco="45347b"

# Use text encoding for data (floating-point numbers)
chd="t:"

chxt=x,y,x

# y-axis range
# max is also used later in the awk, divided by 100
YMAX="26"
chxr="0,0,${YMAX}"

while read i; do
	l=${i%:*}
	n=${i#*: }

	# Comment out if you want a total number for getting percentages
	# Total=163.0 (1.63)
	[[ $l = Total ]] && continue

	l="${l}"

	chxl=( "${chxl[@]}" "${l}" )
	chd="${chd}${n},"
done \
	< <(awk '/^1/, /^2/ {print}' gentoo_survey.txt \
	| grep ': [0-9]' gentoo_survey.txt \
	| sort -t: -k2 -n -r \
	| awk -F: \
		'BEGIN {other=0; tot=0} \
		{ tot+=$2; if ($2 > 3) printf("%s: %.1f\n", $1, $2/1.63/0.26); else other++} \
		END {printf("%s: %.1f\n", "Other", other/1.63/0.26); print "Total: " tot}')

# Reverse the order of labels
for ((i=${#chxl[@]}, j=0; i>=0; i--, j++)); do
	newchxl[j]=${chxl[i]}
done

unset chxl

for i in "${newchxl[@]}"; do
	chxl="${chxl}${i}|"
done

chxl="1:${chxl}2:|Percentage"

# Label position
chxp="2,50"

# Strip off the last ones
chd=${chd%,}
chxl=${chxl%|}

#chs="800x375"
chs="600x500"

# bar chart
cht="bhg"

echo "${url}chs=${chs}&cht=${cht}&chxr=${chxr}&chxp=${chxp}&chxt=${chxt}&chd=${chd}&chxl=${chxl}&chtt=${chtt}&chco=${chco}"