#!/usr/bin/env bash
set -x
set -eo pipefail

if ! [ -x "$(command -v psql)" ]; then
	echo >&2 "Error: `psql` is not installed."
	echo >&2 "Use:"
	echo >&2 "		sudo apt update && sudo apt install postgresql-client"
	echo >&2 "to install it."
	exit 1
fi

if ! [ -x "$(command -v sqlx)" ]; then
	echo >&2 "Error: `sqlx` is not installed."
	echo >&2 "Use:"
	echo >&2 "		sudo apt install build-essential pkg-config libssl-dev"
	echo >&2 "		cargo install --version=0.5.7 sqlx-cli --no-default-features --features postgres"
	echo >&2 "to install it."
	exit 1
fi

DB_USER=${POSTGRES_USER:=postgres}
DB_PASSWORD="${POSTGRES_PASSWORD:=password}"
DB_NAME="${POSTGRES_DB:=newsletter}"
DB_PORT="${POSTGRES_PORT:=5432}"

# Allow to skip Docker installation if Postgres is already running
if [[ -z "${SKIP_DOCKER}" ]]
then
	docker run \
		--name postgres-db \
		-e POSTGRES_USER=${DB_USER} \
		-e POSTGRES_PASSWORD=${DB_PASSWORD} \
		-e POSTGRES_DB=${DB_NAME} \
		-p "${DB_PORT}":5432 \
		-d postgres \
		postgres -N 1000
fi

export PGPASSWORD="${DB_PASSWORD}"
until psql -h "localhost" -U "${DB_USER}" -p "${DB_PORT}" -d "postgres" -c '\q'; do
	>&2 echo "Postgres is still unavailable - sleeping"
	sleep 1
done

>&2 echo "Postgres is up and running on port ${DB_PORT} - running migrations."

export DATABASE_URL=postgres://${DB_USER}:${DB_PASSWORD}@localhost:${DB_PORT}/${DB_NAME}
sqlx database create
sqlx migrate run

>&2 echo "Postgres has been migrated. Jobs Complete."