#!/bin/sh
# Applies Nanga Kathai SQL (schema, then storage buckets) that has not been applied yet.
# Safe to run again after adding new migration files.
#
# Usage:  sh apply-migrations.sh [supabase-project-dir]
set -eu

HERE="$(cd "$(dirname "$0")" && pwd)"
PROJECT="${1:-$HOME/nk-backend/supabase-project}"
cd "$PROJECT"

# Keep the project's copy in step with the repo.
mkdir -p nk/migrations
cp "$HERE/../supabase/migrations/"*.sql nk/migrations/
cp "$HERE/sql/"*.sql nk/sql/

PGPASSWORD="$(grep -E '^POSTGRES_PASSWORD=' .env | cut -d= -f2-)"

psql_db() {
  docker compose exec -T -e PGPASSWORD="$PGPASSWORD" db \
    psql -h localhost -U postgres -d postgres -v ON_ERROR_STOP=1 -q "$@"
}

psql_db -c "create table if not exists public.nk_schema_migrations (
  name text primary key, applied_at timestamptz not null default now());
  alter table public.nk_schema_migrations enable row level security;"

for f in nk/migrations/*.sql nk/sql/*.sql; do
  name="$(basename "$f")"
  done_already="$(psql_db -tA -c "select 1 from public.nk_schema_migrations where name = '$name'")"
  if [ "$done_already" = "1" ]; then
    echo "skip   $name"
    continue
  fi
  echo "apply  $name"
  { cat "$f"; printf "\ninsert into public.nk_schema_migrations (name) values ('%s');\n" "$name"; } | psql_db -1 -f -
done

echo "Migrations up to date."