#!/bin/bash

set -x

LATEST=$SEAF/seafile-server-latest

function ext_url {
	echo "${SEAF_URL:-http://$(hostname)}/seafhttp"
}
function patch_seahub_conf {
	KEY="FILE_SERVER_ROOT"
	ENTRY="$KEY = '$(ext_url)'"
	CONF="$SEAF/conf/seahub_settings.py"
	grep "$KEY" -i "$CONF"
	if [ $? -eq 1 ]; then
		echo "Patched seahub_settings.py: set $ENTRY"
		echo -e "\n$ENTRY" >> "$CONF"
	fi
}
function last_update {
	if [ -e "$LATEST/install_date" ]; then 
		date -d $(cat "$LATEST/install_date") "+%s"
	else
		echo 1000000
	fi
}

function timestamp {
    date +%Y-%m-%d > "$LATEST/install_date"     
}

function revert {
        rm -rf "$LATEST"
}

### Setup ###

if [ ! -e "$LATEST" ]; then
	(>&2 echo This appears to be the fist run, installing..)
	trap revert ERR
	mkdir -p $SEAF/conf
        cp -f /etc/seafile/* /opt/seafile/conf/
	/usr/local/sbin/upgrade main
	RES="$?"
	if [ "$RES" -eq 126 ]; then
	        (>&2 echo Entering setup)
                INSTALLDIR=$(cat $SEAF/ahead)
                rm -rf $SEAF/ahead
                SETUP_ARGS="auto -n ${SEAF_NAME:-$(hostname)} -i $(hostname) -p 8082"
                if [ ! -z "$SEAF_MYSQL" ]; then
                 $INSTALLDIR/setup-seafile-mysql.sh $SETUP_ARGS -o $SEAF_MYSQL_HOST -t ${SEAF_MYSQL_PORT:-3306} -u "${SEAF_MYSQL_USER:-root}" \
                 -w "$SEAF_MYSQL_PASS" -r "${SEAF_MYSQL_ROOT_PASS:-$SEAF_MYSQL_PASS}" -c ${SEAF_MYSQL_DB_CCNET:-ccnet} -s ${SEAF_MYSQL_DB_SEAF:-seafile} \
                 -b ${SEAF_MYSQL_DB_HUB:-seahub}
                else
                 $INSTALLDIR/setup-seafile.sh $SETUP_ARGS
                fi
                cp -f /etc/seafile/* /opt/seafile/conf/	
	        timestamp
	        exit 0 
	fi
	if [ ! "$RES" -eq 1 ]; then 
	        exit 0
	fi
	(>&2 echo "Installation failed")
	exit 1
else
	LAST_UPGRADE=$(last_update)
	SINCE_UPGRADE=$(((($(date "+%s") - $LAST_UPGRADE))/(60*60*24)))
	if [ $LAST_UPGRADE -gt 0 ] && [ "0$SEAF_UPGRADE_INTERVAL" -gt 0 ] && [ $SINCE_UPGRADE -gt "0$SEAF_UPGRADE_INTERVAL" ]; then
		(>&2 echo "It's been $SINCE_UPGRADE days since the last Upgrade\nPERFORMING UPGRADE NOW\nSet SEAF_UPGRADE_INTERVAL=0 disable automatic updates")
		/usr/local/sbin/upgrade main
		timestamp
	fi
	patch_seahub_conf
fi