#! /usr/bin/bash

source ./scripts/env.sh

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:$port/$POSTGRES_DB

psql \
  --quiet \
  $url \
  --command="drop schema public cascade; create schema public;" \
  1>/dev/null

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