#!/bin/bash
ulimit -m 4194304 -v 4194304
set -e

if [ -f /tmp/planet-notes-dump.lock ]; then
	if [ "$(ps -p `cat /tmp/planet-notes-dump.lock` | wc -l)" -gt 1 ]; then
		# process is still running
		echo Error: Another planet-notes-dump is running
		exit 1
	else
		# process not running, but lock file not deleted?
		rm /tmp/planet-notes-dump.lock
	fi
fi

#Create Lock
echo $$ > /tmp/planet-notes-dump.lock


cur_date=$(date +%y%m%d)
cur_year=$(date +%Y)
cur_planet_notes="planet-notes-${cur_date}.osn"
planet_dir=/store/planet/

export PATH='/usr/local/bin:/usr/bin:/bin:/usr/bin/X11'


if [ \! -d "${planet_dir}/notes/" ]
	then
		echo "${planet_dir}notes/ does not exist"
		exit 1
	fi
if [ \! -d "${planet_dir}/notes/${cur_year}/" ]; then mkdir "${planet_dir}/notes/${cur_year}/"; fi
cd "${planet_dir}/notes/${cur_year}/"

/usr/bin/python3 /opt/planet-notes-dump/dump.py --quiet --database openstreetmap --host <%= node[:web][:readonly_database_host] %> --user planetdump --password '<%= @password %>' ".${cur_planet_notes}"
pbzip2 -p6 -9 ".${cur_planet_notes}"

planet_notes_size=$(du -sb ".${cur_planet_notes}.bz2" | awk '{ print $1 }')
if ((planet_notes_size<12000000)); then
	echo "Planet .${cur_planet_notes}.bz2 too small"
	exit 1
fi

mv ".${cur_planet_notes}.bz2" "${cur_planet_notes}.bz2"
md5sum "${cur_planet_notes}.bz2" > "${cur_planet_notes}.bz2.md5"

#link planet latest to the new file
cd "${planet_dir}/notes/"

ln -fs "${cur_year}/${cur_planet_notes}.bz2" planet-notes-latest.osn.bz2

# mangle md5 files for 'latest' ones
rm -f planet-notes-latest.osn.bz2.md5

sed -e "s/${cur_planet_notes}.bz2/planet-notes-latest.osn.bz2/" "${cur_year}/${cur_planet_notes}.bz2.md5" > planet-notes-latest.osn.bz2.md5

rm /tmp/planet-notes-dump.lock