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

CONFIG_FILE="/opt/appfactory/config/appfactory.env"

if [ -f "$CONFIG_FILE" ]; then
  set -a
  # shellcheck disable=SC1090
  source "$CONFIG_FILE"
  set +a
fi

APPFACTORY_DIR="${APPFACTORY_DIR:-/opt/appfactory}"
WORKSPACE_DIR="${WORKSPACE_DIR:-$APPFACTORY_DIR/workspace}"
BACKUP_DIR="${BACKUP_DIR:-$APPFACTORY_DIR/backups}"

TIMESTAMP="$(date +%Y%m%d-%H%M%S)"
BACKUP_FILE="$BACKUP_DIR/appfactory-backup-$TIMESTAMP.tar.gz"
MANIFEST_FILE="$(mktemp)"

mkdir -p "$BACKUP_DIR"

add_path() {
  local path="$1"

  if [ -e "$path" ]; then
    echo "$path" >> "$MANIFEST_FILE"
  else
    echo "WARN: missing path skipped: $path" >&2
  fi
}

add_path "$APPFACTORY_DIR/apps"
add_path "$APPFACTORY_DIR/config"

# AppFactory portal/platform DB and internal data.
add_path "$APPFACTORY_DIR/data/appfactory"

# Core service persistent data.
add_path "$APPFACTORY_DIR/data/gitea"
add_path "$APPFACTORY_DIR/data/registry"
add_path "$APPFACTORY_DIR/data/caddy"
add_path "$APPFACTORY_DIR/data/caddy-config"

add_path "$APPFACTORY_DIR/deploy"
add_path "$APPFACTORY_DIR/gateway"
add_path "$APPFACTORY_DIR/templates"
add_path "$APPFACTORY_DIR/services"
add_path "$WORKSPACE_DIR"

echo "Creating backup:"
echo "$BACKUP_FILE"

tar -czf "$BACKUP_FILE" --files-from "$MANIFEST_FILE"

rm -f "$MANIFEST_FILE"

echo ""
echo "DONE"
echo "$BACKUP_FILE"