#!/bin/bash

# Copyright © 2015-2016 Holger Levsen <holger@layer-acht.org>
# released under the GPLv=2

DEBUG=false
. /srv/jenkins/bin/common-functions.sh
common_init "$@"

# common code defining db access
. /srv/jenkins/bin/reproducible_common.sh

TARGET_DIR=/srv/reproducible-results/node-information/
mkdir -p $TARGET_DIR
TMPFILE_SRC=$(mktemp)
TMPFILE_NODE=$(mktemp)

#
# build a static webpage
#
VIEW=nodes_health
PAGE=index_${VIEW}.html
echo "$(date -u) - starting to write $PAGE page."
write_page_header $VIEW "Build nodes health overview"
write_page "<p>This page is still under development. Please provide feedback, which other information (be it from munin or elsewhere) should be displayed and how this page should be split further, eg, the graphs could all be on another page and/or we should split this page into four for the four architectures being tested…</p>"
# FIXME: Also either $0 and its job needs to be renamed to include 'html' or the code needs to be moved elsewhere
write_page "<p style=\"clear:both;\">"
for ARCH in ${ARCHS} ; do
	write_page "<h3>$ARCH nodes</h3>"
	write_page "<table>"
	write_page "<tr><th>Name</th><th>maintenance</th>"
		for SUITE in ${SUITES} ; do
			if [ "$SUITE" = "experimental" ] ; then
				continue
			fi
			write_page "<th>schroot setup $SUITE</th>"
		done
		for SUITE in ${SUITES} ; do
			write_page "<th>pbuilder setup $SUITE</th>"
		done
	write_page "</tr>"
	for NODE in jenkins $BUILD_NODES ; do
		if [ -z "$(echo $NODE | grep $ARCH || true)" ] && [ "$NODE" != "jenkins" ] ; then
			continue
		elif [ "$NODE" = "jenkins" ] && [ "$ARCH" != "amd64" ] ; then
			continue
		fi
		if [ "$NODE" = "jenkins" ] ; then
			JENKINS_NODENAME=jenkins
			NODE="jenkins.debian.net"
		else
			case $ARCH in
				amd64|i386) 	JENKINS_NODENAME=$(echo $NODE | cut -d "-" -f1-2|sed 's#-build##' ) ;;
				arm64) 		JENKINS_NODENAME=$(echo $NODE | cut -d "-" -f1-2|sed 's#-sled##' ) ;;
				armhf) 		JENKINS_NODENAME=$(echo $NODE | cut -d "-" -f1) ;;
			esac
		fi
		write_page "<tr><td>$JENKINS_NODENAME</td>"
		URL="https://jenkins.debian.net/view/reproducible/view/Node_maintenance/job/reproducible_maintenance_${ARCH}_${JENKINS_NODENAME}"
		BADGE="$URL/badge/icon"
		write_page "<td><a href='$URL'><img src='$BADGE' /></a></td>"
		for SUITE in ${SUITES} ; do
			if [ "$SUITE" = "experimental" ] ; then
				continue
			fi
			URL="https://jenkins.debian.net/view/reproducible/view/Debian_setup_${ARCH}/job/reproducible_setup_schroot_${SUITE}_${ARCH}_${JENKINS_NODENAME}"
			BADGE="$URL/badge/icon"
			write_page "<td><a href='$URL'><img src='$BADGE' /></a></td>"
		done
		for SUITE in ${SUITES} ; do
			if [ "$JENKINS_NODENAME" = "jenkins" ] ; then
				write_page "<td colspan='3'></td>"
			else
				URL="https://jenkins.debian.net/view/reproducible/view/Debian_setup_${ARCH}/job/reproducible_setup_pbuilder_${SUITE}_${ARCH}_${JENKINS_NODENAME}"
				BADGE="$URL/badge/icon"
				write_page "<td><a href='$URL'><img src='$BADGE' /></a></td>"
			fi
		done
		write_page "</tr>"
		write_page "<tr><td></td>"
		for GRAPH in jenkins_reproducible_builds cpu memory df ; do
			if [ "$JENKINS_NODENAME" = "jenkins" ] && [ "$GRAPH" = "jenkins_reproducible_builds" ] ; then
				write_page "<td></td>"
			else
				write_page "<td><a href='https://jenkins.debian.net/munin/debian.net/$NODE/$GRAPH.html'>"
				write_page "<img src='https://jenkins.debian.net/munin/debian.net/$NODE/$GRAPH-day.png' width='150' /></a></td>"
			fi
		done
		write_page "<td colspan='2'></td>"
		write_page "</tr>"
		
	done
	write_page "</table>"
done
write_page "</p>"
write_page_footer
publish_page debian
exit 0

#
# collect node information
#
echo "$(date -u) - Collecting information from nodes"
for NODE in $BUILD_NODES jenkins.debian.net ; do
	if [ "$NODE" = "jenkins.debian.net" ] ; then
		echo "$(date -u) - Trying to update $TARGET_DIR/$NODE."
		/srv/jenkins/bin/reproducible_info.sh > $TARGET_DIR/$NODE
		echo "$(date -u) - $TARGET_DIR/$NODE updated:"
		cat $TARGET_DIR/$NODE
		continue
	fi
	# call jenkins_master_wrapper.sh so we only need to track different ssh ports in one place
	# jenkins_master_wrapper.sh needs NODE_NAME and JOB_NAME
	export NODE_NAME=$NODE
	export JOB_NAME=$JOB_NAME
	echo "$(date -u) - Trying to update $TARGET_DIR/$NODE."
	set +e
	/srv/jenkins/bin/jenkins_master_wrapper.sh /srv/jenkins/bin/reproducible_info.sh > $TMPFILE_SRC
	if [ $? -eq 1 ] ; then
		echo "$(date -u) - Warning: could not update $TARGET_DIR/$NODE."
		continue
	fi
	set -e
	for KEY in $BUILD_ENV_VARS ; do
		VALUE=$(egrep "^$KEY=" $TMPFILE_SRC | cut -d "=" -f2-)
		if [ ! -z "$VALUE" ] ; then
			echo "$KEY=$VALUE" >> $TMPFILE_NODE
		fi
	done
	if [ -s $TMPFILE_NODE ] ; then
		mv $TMPFILE_NODE $TARGET_DIR/$NODE
		echo "$(date -u) - $TARGET_DIR/$NODE updated:"
		cat $TARGET_DIR/$NODE
	fi
	rm -f $TMPFILE_SRC $TMPFILE_NODE
done
echo

echo "$(date -u) - Showing node performance:"
TMPFILE1=$(mktemp)
TMPFILE2=$(mktemp)
TMPFILE3=$(mktemp)
NOW=$(date -u '+%Y-%m-%d %H:%m')
for i in $BUILD_NODES ; do
	query_db "SELECT build_date FROM stats_build AS r WHERE ( r.node1='$i' OR r.node2='$i' )" > $TMPFILE1 2>/dev/null
	j=$(wc -l $TMPFILE1|cut -d " " -f1)
	k=$(cat $TMPFILE1|cut -d " " -f1|sort -u|wc -l)
	l=$(echo "scale=1 ; ($j/$k)" | bc)
	echo "$l builds/day ($j/$k) on $i" >> $TMPFILE2
	DATE=$(date '+%Y-%m-%d %H:%M' -d "-1 days")
	m=$(query_db "SELECT count(build_date) FROM stats_build AS r WHERE ( r.node1='$i' OR r.node2='$i' ) AND r.build_date > '$DATE' " 2>/dev/null)
	if [ "$m" = "" ] ; then m=0 ; fi
	echo "$m builds in the last 24h on $i" >> $TMPFILE3
done
rm $TMPFILE1 >/dev/null
sort -g -r $TMPFILE2
echo
sort -g -r $TMPFILE3
rm $TMPFILE2 $TMPFILE3 >/dev/null
echo