#!/usr/bin/env bash
#
# Full project check: formatting, linting, type-checking, building and tests for
# both the Rust backend and the SvelteKit frontend. Run by the pre-push hook
# (.githooks/pre-push) and usable by hand or in CI.
#
# Usage:
#   scripts/check.sh                 # check everything
#   scripts/check.sh backend         # backend only
#   scripts/check.sh frontend        # frontend only
#
# Backend integration tests (tests/api.rs) need a throwaway Postgres database.
# Point TEST_DATABASE_URL at one to run them; otherwise they skip:
#   TEST_DATABASE_URL=postgres://shoplist:devpass@localhost:5432/shoplist_test \
#     scripts/check.sh backend

set -euo pipefail

ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
TARGET="${1:-all}"

# Pretty section headers.
section() { printf '\n\033[1;35m▸ %s\033[0m\n' "$1"; }
ok() { printf '\033[1;32m✓ %s\033[0m\n' "$1"; }

check_backend() {
  section "Backend (Rust)"
  cd "$ROOT/backend"

  echo "• cargo fmt --check"
  cargo fmt --all -- --check

  echo "• cargo clippy (-D warnings)"
  cargo clippy --all-targets --all-features -- -D warnings

  echo "• cargo build"
  cargo build --all-targets

  if [ -n "${TEST_DATABASE_URL:-}" ]; then
    echo "• cargo test (with integration DB)"
  else
    echo "• cargo test (unit only — set TEST_DATABASE_URL for integration)"
  fi
  cargo test --all-targets

  ok "backend"
}

check_frontend() {
  section "Frontend (SvelteKit)"
  cd "$ROOT/frontend"

  # Make sure deps are present (lockfile-faithful) before checking.
  if [ ! -d node_modules ]; then
    echo "• pnpm install"
    pnpm install --frozen-lockfile
  fi

  echo "• prettier --check"
  pnpm run format:check

  echo "• eslint"
  pnpm run lint

  echo "• svelte-check"
  pnpm run check

  echo "• vitest"
  pnpm test

  echo "• vite build"
  pnpm run build

  ok "frontend"
}

case "$TARGET" in
  backend) check_backend ;;
  frontend) check_frontend ;;
  all) check_backend; check_frontend ;;
  *) echo "unknown target: $TARGET (use: all | backend | frontend)" >&2; exit 2 ;;
esac

printf '\n\033[1;32m✓ all checks passed\033[0m\n'