#!/usr/bin/env bash
set -euo pipefail

# Crea uno snapshot baseline (senza dipendere da git) della versione funzionante.
# Uso:
#   scripts/ops/netgescon-baseline-freeze.sh --app-dir /var/www/netgescon --version 0.8.0-baseline

APP_DIR="/var/www/netgescon"
VERSION=""
OUT_DIR="/var/backups/netgescon-baselines"

while [[ $# -gt 0 ]]; do
  case "$1" in
    --app-dir)
      APP_DIR="$2"
      shift 2
      ;;
    --version)
      VERSION="$2"
      shift 2
      ;;
    --out-dir)
      OUT_DIR="$2"
      shift 2
      ;;
    *)
      echo "Unknown option: $1"
      exit 1
      ;;
  esac
done

if [[ -z "$VERSION" ]]; then
  echo "Usage: $0 --version <version-tag> [--app-dir <dir>] [--out-dir <dir>]"
  exit 1
fi

if [[ ! -f "$APP_DIR/artisan" ]]; then
  echo "Invalid APP_DIR (artisan not found): $APP_DIR"
  exit 1
fi

STAMP="$(date +"%Y%m%d-%H%M%S")"
BASE_DIR="$OUT_DIR/${VERSION}_${STAMP}"
mkdir -p "$BASE_DIR"

# Backup codice (esclude dati runtime pesanti)
tar -czf "$BASE_DIR/code.tar.gz" \
  --exclude='.git' \
  --exclude='node_modules' \
  --exclude='vendor' \
  --exclude='storage/logs' \
  --exclude='storage/framework' \
  -C "$APP_DIR" .

# Backup env e dump DB best-effort
if [[ -f "$APP_DIR/.env" ]]; then
  cp "$APP_DIR/.env" "$BASE_DIR/.env"
fi

set +e
source "$APP_DIR/.env" 2>/dev/null
if [[ -n "${DB_DATABASE:-}" && -n "${DB_USERNAME:-}" ]]; then
  MYSQL_PWD="${DB_PASSWORD:-}" mysqldump \
    --host="${DB_HOST:-127.0.0.1}" \
    --port="${DB_PORT:-3306}" \
    --user="$DB_USERNAME" \
    --single-transaction \
    --routines \
    --triggers \
    "$DB_DATABASE" > "$BASE_DIR/database.sql"
fi
set -e

cat > "$BASE_DIR/BASELINE_INFO.txt" <<EOF
version=$VERSION
created_at=$STAMP
app_dir=$APP_DIR
EOF

echo "Baseline creato: $BASE_DIR"