#! /bin/bash
#############################
# This script imports data (e.g. from the road network of bolzano) that is
# downloaded from OpenStreetMap (OSM) and then imported into available
# databases (neo4j_spatial, postgis and spatialite).
#############################

if [ "$EUID" -ne "0" ]; then
	echo -e "\e[91mThis script must be run as root!\e[39m"
	exit 1
fi

############################
# Variable definitions     #
############################

SCRIPT="$(readlink -f ${BASH_SOURCE[0]})"
SCRIPT_DIR="$(dirname ${SCRIPT})"
if [ ! -f "${SCRIPT_DIR}/config.sh" ]; then
	# If config.properties is not besides the bash-script (most likely because vagrant uploaded it into the guest)
	# we will try to find it in the shared folder
	SCRIPT_DIR="/vagrant/bootstrap"
fi
if [ ! -f "${SCRIPT_DIR}/config.sh" ]; then
	echo -e "\e[91mNo variable declarations found (config.properties file not found)!\e[39m"
	exit 1;
fi
source "${SCRIPT_DIR}/config.sh"

if ! $IMPORT_DATA_POSTGIS; then
	exit 0
fi

fn_arg2string PG_DB_USER "${1}" "${PG_DB_USER}"
fn_arg2string PG_DB_PASSWORD "${2}" "${PG_DB_PASSWORD}"
fn_arg2boolean DEPLOY_ALL_DATASETS "${3}" "${DEPLOY_ALL_DATASETS}"
fn_arg2boolean DEPLOY_ANY_DATASET "${4}" "true"

######################################
# Configuration (tool versions, ...) #
######################################

#DENSITY="60,120,180,240,300"
DENSITY="100,200,300,400,500,600,700,800,900,1000"

############################
# Function definitions     #
############################

function fn_create_synthetic_networks() {
	if $AVAILABLE_ISOCHRONE_TOOLS; then
		fn_echo "Importing data for synthetic networks"

		# GridNetwork
		${EXEC_JAVA} -cp ${DEPLOY_DIR}/isochrone-tools.jar at.uibk.dbis.isochrone.generator.GridNetworkGenerator -d 100 -l 60 > "$WORKING_DIR/generate_gridNetwork.log" 2>&1
			if [ $? -ne 0 ]; then
			fn_echo "An error occurred while creating the grid network. The process will exit now with status $?" "ERROR"
			exit $?
		fi
		${EXEC_JAVA} -cp ${DEPLOY_DIR}/isochrone-tools.jar at.uibk.dbis.isochrone.generator.density.DensityGenerator -t grid_s100 -d "$DENSITY" >> "$WORKING_DIR/generate_gridNetwork.log" 2>&1
		if [ $? -ne 0 ]; then
			fn_echo "An error occurred while creating the node_density table for 'grid_s100' using isochrone-tools. The process will exit now with status $?" "ERROR"
			exit $?
		fi

		# SpiderNetwork
		${EXEC_JAVA} -cp ${DEPLOY_DIR}/isochrone-tools.jar at.uibk.dbis.isochrone.generator.SpiderNetworkGenerator -d 6 -lvl 1000 -l 60 > "$WORKING_DIR/generate_spiderNetwork.log" 2>&1
		if [ $? -ne 0 ]; then
			fn_echo "An error occurred while creating the spider network. The process will exit now with status $?" "ERROR"
			exit $?
		fi
		${EXEC_JAVA} -cp ${DEPLOY_DIR}/isochrone-tools.jar at.uibk.dbis.isochrone.generator.density.DensityGenerator -t spider_l1000 -d "$DENSITY" >> "$WORKING_DIR/generate_spiderNetwork.log" 2>&1
		if [ $? -ne 0 ]; then
			fn_echo "An error occurred while creating the node_density table for 'spider_l1000' using isochrone-tools. The process will exit now with status $?" "ERROR"
			exit $?
		fi
	fi
}

function fn_import_dataset() {
	local NAME="$1"
	local SRID="$2"

	fn_echo "Importing data for region of $NAME (EPSG:${SRID})"
	if $IMPORT_DATA_POSTGIS; then
		fn_echo "  - importing into postgis"
		fn_import_dataset_postgis "$NAME" "$SRID"
	fi

	if $IMPORT_DATA_NEO4J_SPATIAL; then
		fn_echo "  - importing into neo4j"
		fn_import_dataset_neo4j_spatial "$NAME"
	fi
}

function fn_import_dataset_neo4j_spatial() {
	local NAME="$1"

	local CITY=${NAME// /}
	CITY=${CITY,,}

	# We copy data from postgis for specified dataset (after postgis data import)
	${EXEC_JAVA} -cp ${DEPLOY_DIR}/isochrone-tools.jar at.uibk.dbis.isochrone.exporter.ImportDataNeo4j -t "${CITY}" > "$WORKING_DIR/import_neo4j_$CITY.log" 2>&1
	if [ $? -ne 0 ]; then
		fn_echo "An error occurred while importing data into neo4j using isochrone-tools. The process will exit now with status $?" "ERROR"
		exit $?
	fi
}

function fn_import_dataset_postgis() {
	local NAME="$1"
	local SRID="$2"

	local SQL_EXPORT_FILE="${NAME,,}_export_${SRID}.sql.gz"
	local CITY=${NAME// /}
	CITY=${CITY,,}

	if ! $UPDATE_DATA; then
		fn_echo "  - downloading SQL export"
		fn_download_newer $DOWNLOAD_DIR/$SQL_EXPORT_FILE "${CACHE_DIR_REMOTE}${SQL_EXPORT_FILE}"
		cp $DOWNLOAD_DIR/$SQL_EXPORT_FILE $DATA_DIR/$SQL_EXPORT_FILE >> /dev/null 2>&1

		fn_echo "  - importing SQL export into PostGIS database"
		gunzip -c $DATA_DIR/$SQL_EXPORT_FILE | PGPASSWORD="$PG_DB_PASSWORD" ${EXEC_PSQL} -U "$PG_DB_USER" -h localhost "$PG_DB_NAME" >> "$WORKING_DIR/import_datamodel_$CITY_$SRID.log" 2>&1

		fn_echo "  - getting table permissions"
		tables=`PGPASSWORD="$PG_DB_PASSWORD" ${EXEC_PSQL} -qAt -U "$PG_DB_USER" -h localhost -c "SELECT tablename FROM pg_tables WHERE schemaname = 'public' AND tableowner = 'postgres';" "$PG_DB_NAME"`

		fn_echo "  - fixing table permissions"
		for tbl in $tables; do
			PGPASSWORD="$PG_DB_PASSWORD" ${EXEC_PSQL} -qAt -U "$PG_DB_USER" -h localhost -c "ALTER TABLE $tbl OWNER TO $PG_DB_USER" "$PG_DB_NAME"
		done
	fi

	if $UPDATE_DATA && [ -f "$DATA_DIR/$SQL_EXPORT_FILE" ]; then
		fn_echo "  - deleting outdated SQL export (forced data update)"
		rm -rf "$DATA_DIR/$SQL_EXPORT_FILE"
	fi

	if $AVAILABLE_ISOCHRONE_DATAMODEL && [ ! -f "$DATA_DIR/$SQL_EXPORT_FILE" ]; then
		fn_echo "  - creating datamodel using isochrone-datamodel"
		# Create datamodel using isochrone-datamodel project
		DB_USERNAME="$PG_DB_USER" DB_PASSWORD="$PG_DB_PASSWORD" "$DEPLOY_DIR/isochrone-datamodel/osmPti2mmds.sh" -d -s -b -l -t${SRID} -c${CITY} >> "$WORKING_DIR/create_datamodel_${CITY}_${SRID}.log" 2>&1
		if [ $? -ne 0 ]; then
			fn_echo "An error occurred while creating datamodel using isochrone-datamodel. The process will exit now with status $?" "ERROR"
			exit $?
		fi

		fn_echo "  - copying tables to isochrone database"
		# If working with multiple TARGET_SRIDs we have to delete an eventually existing nodes_density table here, so on import later a DROP TABLE ${CITY}_nodes works wihtout CASCADE (${EXEC_PGDUMP} does not use CASCADE)
		PGPASSWORD="$PG_DB_PASSWORD" ${EXEC_PSQL} -qAt -U "$PG_DB_USER" -h localhost -d isochrone -c "DROP TABLE IF EXISTS ${CITY}_nodes_density" >> "$WORKING_DIR/create_datamodel_${CITY}_${SRID}.log" 2>&1
		PGPASSWORD="spatial" ${EXEC_PGDUMP} -U spatial -h localhost -d spatial --clean --if-exists --no-privileges --no-owner -t "transformed.${CITY}_*"  | sed -e "s/transformed/public/g" | PGPASSWORD="$PG_DB_PASSWORD" ${EXEC_PSQL} -qAt -U "$PG_DB_USER" -h localhost -d isochrone >> "$WORKING_DIR/create_datamodel_${CITY}_${SRID}.log" 2>&1
	fi

	if $AVAILABLE_POSTGIS && $AVAILABLE_ISOCHRONE_TOOLS; then
		local exists_density=$(PGPASSWORD="$PG_DB_PASSWORD" ${EXEC_PSQL} -qAt -U "$PG_DB_USER" -h localhost -d isochrone -c "SELECT EXISTS (SELECT * FROM pg_class C LEFT JOIN pg_namespace N ON (N.oid=C.relnamespace) WHERE nspname = 'public' AND relname='${CITY}_nodes_density')")
		if [ "$exists_density" == "t" ]; then
			fn_echo "  - nodes_density exists... not re-creating table"
		else
			fn_echo "  - nodes_densities does not exist... creating table"
			${EXEC_JAVA} -cp "${DEPLOY_DIR}/isochrone-tools.jar" "at.uibk.dbis.isochrone.generator.density.DensityGenerator" -t "${CITY}" -d "${DENSITY}" >> "$WORKING_DIR/create_datamodel_${CITY}_${SRID}.log" 2>&1
			if [ $? -ne 0 ]; then
				fn_echo "An error occurred while creating the node_density table for '${CITY}' using isochrone-tools. The process will exit now with status $?" "ERROR"
				exit $?
			fi
		fi
	fi

	if $AVAILABLE_ISOCHRONE_DATAMODEL; then
		# Exporting resulting database to $DATA_DIR
		fn_echo "  - exporting database dump"
		PGPASSWORD="$PG_DB_PASSWORD" ${EXEC_PGDUMP} -U "$PG_DB_USER" -h localhost -d isochrone --clean --compress=5 --if-exists -t "${CITY}_*" --file="$DATA_DIR/$SQL_EXPORT_FILE" >> "$WORKING_DIR/create_datamodel_${CITY}_${SRID}.log" 2>&1
	fi
}

function fn_init_geoserver() {
	fn_echo "Configuring geoserver $GEOSERVER_VERSION using geoserver-shell $GEOSERVER_SHELL_VERSION"
	sh $DEPLOY_DIR/gs-shell/bin/gs-shell --cmdfile $SHARED_CONF_DIR/geoserver_setup_ws.gs >> setup_geoserver_workspace.log 2>&1
	sh $DEPLOY_DIR/gs-shell/bin/gs-shell --cmdfile $SHARED_CONF_DIR/geoserver_setup_styles.gs >> setup_geoserver_styles.log 2>&1
	cp $SHARED_IMG_DIR/* $DEPLOY_DIR/geoserver/data/styles >> setup_geoserver_styles.log 2>&1
}

function fn_import_spatialite() {
	local SRID="$1"

	SPATIALITE_FILENAME="isochrone_${SRID}.spatialite"
	if ! $UPDATE_DATA; then
		fn_echo "Importing spatialite database"
		fn_download_newer "$DOWNLOAD_DIR/$SPATIALITE_FILENAME" "${CACHE_DIR_REMOTE}${SPATIALITE_FILENAME}" "" false
		cp -f "$DOWNLOAD_DIR/$SPATIALITE_FILENAME" "$DATA_DIR/"
	fi

	if $UPDATE_DATA && [ -f "$DATA_DIR/$SPATIALITE_FILENAME" ]; then
		fn_echo "Deleting outdated spatialite database (forced data update)"
		rm -rf "$DATA_DIR/$SPATIALITE_FILENAME"
	fi

	if $AVAILABLE_GDAL && [ ! -f "$DATA_DIR/$SPATIALITE_FILENAME" ]; then
		fn_echo "Exporting PostGIS data into spatialite database"
		$DEPLOY_DIR/gdal/apps/ogr2ogr --config PG_LIST_ALL_TABLES YES --config PG_SKIP_VIEWS YES -progress -f "SQLite" "$DATA_DIR/$SPATIALITE_FILENAME" PG:"host=localhost dbname=isochrone user=$PG_DB_USER password=$PG_DB_PASSWORD" -lco LAUNDER=yes -dsco SPATIALITE=yes -lco SPATIAL_INDEX=yes -gt 65536  >> "$WORKING_DIR/import_spatialite.log" 2>&1
	fi

	if [ -f "$DATA_DIR/$SPATIALITE_FILENAME" ]; then
		fn_echo "  - setting spatialite database permissions"
		chown -R apache:apache "$DATA_DIR/$SPATIALITE_FILENAME"
		chmod -R -g+rwX "$DATA_DIR/$SPATIALITE_FILENAME"

		return 0
	else
		return 1
	fi
}

################
# Data import  #
################

if $DEPLOY_ANY_DATASET; then
	fn_echo "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"
	fn_echo " Importing datasets ($(date +%H:%M:%S)):"
	fn_echo "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"

	START=$(date +%s)

	mkdir -p "$DOWNLOAD_DIR"
	mkdir -p "$WORKING_DIR"
	cd "$WORKING_DIR"
	touch "$WORKING_DIR/database_data_import.lock"

	# Generate synthetic datasets (and densities for them) -> they are always created from scratch (never cached)
	fn_create_synthetic_networks

	SRID_ARR=(${TARGET_SRID//,/ })
	for CURRENT_SRID in "${SRID_ARR[@]}"; do
		# Import real world datasets
		fn_import_dataset "Bolzano" "$CURRENT_SRID"
		fn_import_dataset "Innsbruck" "$CURRENT_SRID"
		fn_import_dataset "Salzburg" "$CURRENT_SRID"
		fn_import_dataset "SanFrancisco" "$CURRENT_SRID"
		fn_import_dataset "WashingtonDC" "$CURRENT_SRID"
		if $DEPLOY_ALL_DATASETS; then
			fn_import_dataset "AltoAdige" "$CURRENT_SRID"
			fn_import_dataset "Berlin" "$CURRENT_SRID"
#			fn_import_dataset "Italy" "$CURRENT_SRID"
		fi

		# Not importing datasets one-by-one into spatialite -> we copy data from postgis (after postgis data import)
		if $IMPORT_DATA_SPATIALITE; then
			fn_import_spatialite "$CURRENT_SRID"
			fn_check_status "Spatialite database could not be created!"
		fi
	done

	# After data import we have to initialize geoserver layer styles (so geoserver can be used by isochrone-web project)
	if $AVAILABLE_GEOSERVER; then
		fn_init_geoserver
	fi

	# Set status file (meaning that database creation was successful)"
	rm "$WORKING_DIR/database_data_import.lock"
	touch "$WORKING_DIR/database_data_import.done"

	END=$(date +%s)
	TOTAL=$(( $END - $START ))

	fn_echo "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"
	fn_echo " Datasets imported"
	printf '\e[92m Time to import the datasets: %dh:%dm:%ds\e[39m\n' $(($TOTAL/3600)) $(($TOTAL%3600/60)) $(($TOTAL%60))
	fn_echo "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"
fi