#! /bin/bash

source ./scripts/env.sh ./.env.schema

rev=${1:-HEAD}

if [[ -n $(git status --porcelain) ]]; then
  echo "git working tree dirty" 1>&2;
  exit 1;
fi

if [[ "$rev" = "HEAD" ]]; then
  head=""
  port=5432
else
  head=$(git show --format=format:%h -q)
  git reset "$rev" --quiet --hard
  port=5433
fi

switch_back_to_head() {
  if [[ -n "$head" ]]; then
    git reset --quiet --hard "$head"
  fi
}
trap 'switch_back_to_head' EXIT

url=postgresql://$POSTGRES_USER:$POSTGRES_PASSWORD@localhost:$port

dropdb=$(mktemp)
echo "drop database dnim with (force); create database dnim;" > "$dropdb"
psql --quiet "$url/postgres" --file="$dropdb" 1>/dev/null

ls ./schema/ | xargs -I{} \
   psql \
   --quiet \
   "$url/$POSTGRES_DB" \
   --file=./schema/{} \
   1>/dev/null