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

# Safe sync: development -> production code, plus optional archive transfer.
#
# Example:
#   scripts/ops/netgescon-sync-prod-update.sh \
#     --src /home/michele/netgescon/netgescon-laravel \
#     --dst /var/www/netgescon \
#     --archive-src /home/michele/backup-completo \
#     --archive-dst /mnt/nas-backup-produzione \
#     --post-deploy

SRC_DIR="/home/michele/netgescon/netgescon-laravel"
DST_DIR="/var/www/netgescon"
ARCHIVE_SRC=""
ARCHIVE_DST=""
POST_DEPLOY="no"
DRY_RUN="no"

while [[ $# -gt 0 ]]; do
  case "$1" in
    --src)
      SRC_DIR="$2"
      shift 2
      ;;
    --dst)
      DST_DIR="$2"
      shift 2
      ;;
    --archive-src)
      ARCHIVE_SRC="$2"
      shift 2
      ;;
    --archive-dst)
      ARCHIVE_DST="$2"
      shift 2
      ;;
    --post-deploy)
      POST_DEPLOY="yes"
      shift 1
      ;;
    --dry-run)
      DRY_RUN="yes"
      shift 1
      ;;
    *)
      echo "Unknown option: $1"
      echo "Usage: $0 [--src <dir>] [--dst <dir>] [--archive-src <dir>] [--archive-dst <dir>] [--post-deploy] [--dry-run]"
      exit 1
      ;;
  esac
done

if [[ ! -d "$SRC_DIR" || ! -f "$SRC_DIR/artisan" ]]; then
  echo "Error: source app not valid: $SRC_DIR"
  exit 1
fi

if [[ ! -d "$DST_DIR" || ! -f "$DST_DIR/artisan" ]]; then
  echo "Error: destination app not valid: $DST_DIR"
  exit 1
fi

RSYNC_ARGS=(
  -rlvh
  --update
  --checksum
  --no-perms
  --no-owner
  --no-group
  --omit-dir-times
  --no-times
  --exclude=.git/
  --exclude=.env
  --exclude=storage/
  --exclude=node_modules/
  --exclude=vendor/
  --exclude=bootstrap/cache/
  --exclude=public/build/
)

if [[ "$DRY_RUN" == "yes" ]]; then
  RSYNC_ARGS+=(--dry-run)
fi

echo "Syncing app updates: $SRC_DIR -> $DST_DIR"
rsync "${RSYNC_ARGS[@]}" "$SRC_DIR/" "$DST_DIR/"

if [[ -n "$ARCHIVE_SRC" || -n "$ARCHIVE_DST" ]]; then
  if [[ -z "$ARCHIVE_SRC" || -z "$ARCHIVE_DST" ]]; then
    echo "Error: use both --archive-src and --archive-dst together"
    exit 1
  fi

  if [[ ! -d "$ARCHIVE_SRC" ]]; then
    echo "Error: archive source does not exist: $ARCHIVE_SRC"
    exit 1
  fi

  mkdir -p "$ARCHIVE_DST"
  echo "Syncing archives (non-destructive): $ARCHIVE_SRC -> $ARCHIVE_DST"
  ARCHIVE_ARGS=(-avh --ignore-existing)
  if [[ "$DRY_RUN" == "yes" ]]; then
    ARCHIVE_ARGS+=(--dry-run)
  fi
  rsync "${ARCHIVE_ARGS[@]}" "$ARCHIVE_SRC/" "$ARCHIVE_DST/"
fi

if [[ "$POST_DEPLOY" == "yes" && "$DRY_RUN" == "no" ]]; then
  echo "Running post-deploy commands in $DST_DIR"
  pushd "$DST_DIR" >/dev/null
  composer install --no-dev --optimize-autoloader
  php artisan optimize:clear
  php artisan config:cache || true
  php artisan event:cache || true
  php artisan view:cache || true
  popd >/dev/null
fi

echo "Sync completed."
if [[ "$DRY_RUN" == "yes" ]]; then
  echo "Dry-run mode: no file changed."
fi