#! /usr/bin/bash

rev=${1:-HEAD}

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

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

while read line; do export $line; done < ./.env

url=postgres://$POSTGRES_USER:$POSTGRES_PASSWORD@localhost:$port/$POSTGRES_DB

psql --echo-all $url --command="drop schema public cascade; create schema public;"

ls ./migrations/ | xargs -I{} psql --echo-all $url --file=./migrations/{}

if [[ -n "$head" ]]; then
  git reset "$head"
fi