#!/usr/bin/env bash

SCRIPT_PATH=$( cd "$(dirname "$0")" ; pwd -P )

IMAGE_NAME="postgres"
IMAGE_VERSION="10.9"

POSTGIS_MAJOR="2.5"
POSTGIS_VERSION="2.5.2+dfsg-1~exp1.pgdg90+1"

SERVICE_NAME=pgsql-db

source ${SCRIPT_PATH}/../common.shinc

#
# Project specific variables
#

DB_VOLUME=pgsql_persistent_10
PORT=5432

source ${SCRIPT_PATH}/env.shinc 2> /dev/null


__build() {
	docker build \
		--build-arg IMAGE_NAME=${IMAGE_NAME} \
		--build-arg VERSION=${IMAGE_VERSION} \
		--build-arg POSTGIS_MAJOR=${IMAGE_VERSION} \
		--build-arg POSTGIS_VERSION=${IMAGE_VERSION} \
		-t ${SERVICE_NAME}:latest \
		${SCRIPT_PATH}/build

	return $?

}

init() {
	__init

	NETWORKS=(${DB_NETWORK})
	__createNetworks

	__msg "Removing old postgres bin volume..."
	docker volume rm -f ${PGSQL_DB_BIN} &&
	docker create \
		--name ${SERVICE_NAME} \
		--restart=unless-stopped \
		-v ${DB_VOLUME}:/var/lib/postgresql/data \
		-v ${PGSQL_DB_BIN}:/usr/lib/postgresql/${IMAGE_VERSION}/bin \
		-e POSTGRES_USER=${DB_USER} \
		-e POSTGRES_PASSWORD=${DB_PASSWORD} \
		--net ${DB_NETWORK} \
		-p ${PORT}:5432 \
		${IMAGE_NAME}:${IMAGE_VERSION}

	[[ $? -ne 0 ]] && return 1

	__ask_to_start
}

migrate9to10() {
  local migrationVolume="pgsql-9-10-dump-migration"
  local migrationpath="/pgsql-data-dump"
  stop
  docker volume create ${migrationVolume}

  docker run --rm -d \
    --name postgres_migration_from_9 \
    -v ${DB_VOLUME}:/var/lib/postgresql/data \
    -v ${PGSQL_DB_BIN}:/usr/lib/postgresql/${IMAGE_VERSION}/bin \
    -v ${migrationVolume}:${migrationpath} \
    -e POSTGRES_USER=${DB_USER} \
    -e POSTGRES_PASSWORD=${DB_PASSWORD} \
    mdillon/postgis:9

  docker exec -it \
    postgres_migration_from_9 \
    bash -c "pg_dumpall > /migration/full.dump"

  if [[ $? -ne 0 ]]; then
    __err "Bad thing, don't continue, quitsies, bye"
    exit 137
  fi

  docker stop postgres_migration_from_9

  docker volume rm -f ${DB_VOLUME}
  docker volume create ${DB_VOLUME}

  docker run --rm -d \
    --name postgres_migration_to_10 \
    -v ${DB_VOLUME}:/var/lib/postgresql/data \
    -v ${PGSQL_DB_BIN}:/usr/lib/postgresql/${IMAGE_VERSION}/bin \
    -v ${migrationVolume}:${migrationpath} \
    -e POSTGRES_USER=${DB_USER} \
    -e POSTGRES_PASSWORD=${DB_PASSWORD} \
    mdillon/postgis:10 \
    psql -d postgres -f ${migrationpath}/full.dump

  sudo docker exec -it \
    postgres_migration_to_10 \
    psql -f /migration/full.dump

  docker stop postgres_migration_to_10

  __init
}

"$@"

exit $?