#! /bin/bash

set -e

# only allow the $WUBLOADER_USER to connect remotely rather than all users
sed -i "/host all all all/d" "$PGDATA/pg_hba.conf"
echo "host all $WUBLOADER_USER all md5" >> "$PGDATA/pg_hba.conf"

echo "Creating $WUBLOADER_USER"
psql -v ON_ERROR_STOP=1 -U $POSTGRES_USER <<-EOSQL

CREATE USER $WUBLOADER_USER LOGIN PASSWORD '$WUBLOADER_PASSWORD';

EOSQL


if [ -n "$REPLICATION_USER" ]; then
	echo "Creating $REPLICATION_USER"
	# allow the $REPLICATION user to replicate remotely
	echo "host replication $REPLICATION_USER all md5" >> "$PGDATA/pg_hba.conf"
	psql -v ON_ERROR_STOP=1 -U $POSTGRES_USER <<-EOSQL

	CREATE USER $REPLICATION_USER LOGIN REPLICATION PASSWORD '$REPLICATION_PASSWORD';

	EOSQL

	cat >> ${PGDATA}/postgresql.conf <<-EOF
	wal_level = replica
	archive_mode = on
	archive_command = 'cd .'
	max_wal_senders = 8
	wal_keep_segments = 8
	EOF

fi

echo "Applying schema for $POSTGRES_DB"
psql -v ON_ERROR_STOP=1 -U $WUBLOADER_USER -d $POSTGRES_DB < /schema.sql

if [ -a /mnt/wubloader/nodes.csv ]; then
	echo "Loading nodes from nodes.csv"
	psql -v ON_ERROR_STOP=1 -U $POSTGRES_USER -d $POSTGRES_DB <<-EOF
	COPY nodes FROM '/mnt/wubloader/nodes.csv' DELIMITER ',' CSV HEADER;
	EOF
fi

if [ -a /mnt/wubloader/editors.csv ]; then
	echo "Loading editors from editors.csv"
	psql -v ON_ERROR_STOP=1 -U $POSTGRES_USER -d $POSTGRES_DB <<-EOF
	COPY editors FROM '/mnt/wubloader/editors.csv' DELIMITER ',' CSV HEADER;
	EOF
fi

if [ -n "READONLY_USER" ]; then
	echo "Creating $READONLY_USER"
	# allow $READONLY_USER to connect remotely
	echo "host all $READONLY_USER all md5" >> "$PGDATA/pg_hba.conf"
	psql -v ON_ERROR_STOP=1 -U $POSTGRES_USER -d $POSTGRES_DB <<-EOSQL

	CREATE USER $READONLY_USER WITH CONNECTION LIMIT 50 LOGIN PASSWORD '$READONLY_PASSWORD';
	GRANT CONNECT ON DATABASE $POSTGRES_DB TO $READONLY_USER;
	GRANT USAGE ON SCHEMA public TO $READONLY_USER;
	GRANT SELECT ON ALL TABLES IN SCHEMA public TO $READONLY_USER;

	EOSQL
fi