#!/usr/bin/env bash
# TowerOps development helper script
# Usage: ./tools/dev.sh <command> [args...]
set -e

export PATH="/nix/var/nix/profiles/default/bin:$PATH"

PROJ_DIR="$(cd "$(dirname "$0")/.." && pwd)"
cd "$PROJ_DIR"

NIX_CMD="nix develop .#default --command"

usage() {
  cat <<EOF
TowerOps Dev Helper

Usage: ./tools/dev.sh <command> [args...]

Commands:
  compile        Compile the project
  test [path]    Run tests (optionally for a specific path)
  test-file <f>  Run tests for a specific file
  push [msg]     Git add, commit, push to origin main
  format         Run mix format
  routes         Show Phoenix routes
  migrate        Run migrations (dev + test)
  reset-db       Reset the database
  server         Start services + Phoenix server
  deps           Fetch dependencies
EOF
  exit 1
}

cmd_compile() {
  $NIX_CMD mix compile "$@"
}

cmd_test() {
  $NIX_CMD env -u DATABASE_URL MIX_ENV=test mix test "$@"
}

cmd_test_file() {
  if [ -z "$1" ]; then
    echo "Error: test-file requires a file path"
    echo "Usage: ./tools/dev.sh test-file test/path/to/test.exs"
    exit 1
  fi
  $NIX_CMD env -u DATABASE_URL MIX_ENV=test mix test "$1"
}

cmd_push() {
  local msg="${1:-update}"
  git add -A
  git commit -m "$msg"
  git push origin main
}

cmd_format() {
  $NIX_CMD mix format "$@"
}

cmd_routes() {
  $NIX_CMD mix phx.routes "$@"
}

cmd_migrate() {
  echo "==> Migrating dev database..."
  $NIX_CMD mix ecto.migrate
  echo "==> Migrating test database..."
  $NIX_CMD env -u DATABASE_URL MIX_ENV=test mix ecto.migrate
}

cmd_reset_db() {
  $NIX_CMD mix ecto.reset "$@"
}

cmd_server() {
  $NIX_CMD bash -c "start-services && mix phx.server"
}

cmd_deps() {
  $NIX_CMD mix deps.get "$@"
}

# --- Main dispatch ---
case "${1:-}" in
  compile)   shift; cmd_compile "$@" ;;
  test)      shift; cmd_test "$@" ;;
  test-file) shift; cmd_test_file "$@" ;;
  push)      shift; cmd_push "$@" ;;
  format)    shift; cmd_format "$@" ;;
  routes)    shift; cmd_routes "$@" ;;
  migrate)   shift; cmd_migrate "$@" ;;
  reset-db)  shift; cmd_reset_db "$@" ;;
  server)    shift; cmd_server "$@" ;;
  deps)      shift; cmd_deps "$@" ;;
  *)         usage ;;
esac