#!/bin/bash
# =============================================================================
# Initialize Multiple PostgreSQL Databases
# =============================================================================
# This script is mounted to /docker-entrypoint-initdb.d/ and runs on first start
# Creates separate databases for each service
# =============================================================================

set -e
set -u

function create_database() {
    local database=$1
    echo "Creating database '$database'"
    psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" <<-EOSQL
        CREATE DATABASE $database;
        GRANT ALL PRIVILEGES ON DATABASE $database TO $POSTGRES_USER;
EOSQL
}

if [ -n "$POSTGRES_MULTIPLE_DATABASES" ]; then
    echo "Multiple database creation requested: $POSTGRES_MULTIPLE_DATABASES"
    for db in $(echo $POSTGRES_MULTIPLE_DATABASES | tr ',' ' '); do
        create_database $db
    done
    echo "Multiple databases created"
fi