#!/bin/sh

# Prepare a container image for building and running the driver, client and
# database.

# Use the specified engine from the environment, or try podman then docker.
if [ "$ENGINE" = "" ]; then
	ENGINE="podman"
	if ! which $ENGINE > /dev/null 2>&1; then
		ENGINE="docker"
		if ! which $ENGINE > /dev/null 2>&1; then
			echo "podman nor docker in path"
			exit 1
		fi
	fi
else
	if ! which $ENGINE > /dev/null 2>&1; then
		echo "specified engine $ENGINE not in path"
		exit 1
	fi
fi
echo "using container engine: $ENGINE"

if [ "$ENGINE" = "docker" ]; then
	DISTRO="fedora"
elif [ "$ENGINE" = "podman" ]; then
	ENGINEARGS="--isolation=chroot --ignorefile .dockerignore"
	DISTRO="quay.io/fedora/fedora"
fi

if which jq > /dev/null 2>&1; then
	PGORG="https://www.postgresql.org/versions.json"
	DBVER=$(curl -s $PGORG | jq -r 'sort | .[] | "\(.major).\(.latestMinor)"' | tail -n 1)
fi
if [ "x$DBVER" = "x" ]; then
	echo "could not auto detect latest postgres version, set DBVER environment variable"
	exit 1
fi
echo "Using PostgreSQL Version $DBVER"

CONTAINER_DIR="$(dirname "$0")/.."
$ENGINE build \
		$ENGINEARGS \
		--build-arg DBVER="$DBVER" \
		--build-arg DISTRO="$DISTRO" \
		-t dbt2-base \
		-f Containerfile \
		"$CONTAINER_DIR"