#!/bin/bash
# ==============================================================================
# Wallarm Docker Node Manager - Unified single-script manager
# ==============================================================================
# Delegates to the individual docker/* scripts for preflight, deployment,
# reconfiguration, and removal — providing a single entry point matching the
# native/wallarm-native.sh command interface.
#
# Commands:
#   --preflight     Run preflight checks only (no installation).
#   --install       Interactive deployment of a Wallarm Docker node.
#   --config        Reconfigure an existing Docker node.
#   --remove        Remove a Docker node completely.
#   --status        Show running Wallarm containers.
#   --help|-h       Show help.
# ==============================================================================

set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"

# Shell script files this wrapper delegates to (must be in the same directory)
CHECK_SCRIPT="${SCRIPT_DIR}/wallarm-ct-check.sh"
DEPLOY_SCRIPT="${SCRIPT_DIR}/wallarm-ct-deploy.sh"
RECONF_SCRIPT="${SCRIPT_DIR}/wallarm-ct-reconfigure.sh"
REMOVE_SCRIPT="${SCRIPT_DIR}/wallarm-ct-uninstall.sh"

show_help() {
    cat <<EOF
Usage: $0 COMMAND [OPTIONS]

Commands:
  --preflight     Run system validation and preflight checks
  --install       Interactive deployment of a Wallarm Docker node
  --config        Reconfigure an existing Docker node (proxies, mode)
  --remove        Uninstall a Wallarm Docker node
  --status        Show running Wallarm containers

Examples:
  $0 --preflight
  sudo $0 --install
  sudo $0 --config
  sudo $0 --remove
EOF
}

# Ensure the delegated script exists
require_script() {
    local script="$1"
    local name="$2"
    if [[ ! -x "$script" ]]; then
        echo "!!! $name script not found or not executable: $script" >&2
        echo "    Run setup.sh first to download all deployment scripts." >&2
        exit 1
    fi
}

case "${1:-}" in
    --preflight)
        require_script "$CHECK_SCRIPT" "Preflight (wallarm-ct-check.sh)"
        exec "$CHECK_SCRIPT" "${@:2}"
        ;;
    --install)
        require_script "$DEPLOY_SCRIPT" "Deploy (wallarm-ct-deploy.sh)"
        exec sudo "$DEPLOY_SCRIPT" "${@:2}"
        ;;
    --config)
        require_script "$RECONF_SCRIPT" "Reconfigure (wallarm-ct-reconfigure.sh)"
        exec sudo "$RECONF_SCRIPT" "${@:2}"
        ;;
    --remove)
        require_script "$REMOVE_SCRIPT" "Uninstall (wallarm-ct-uninstall.sh)"
        exec sudo "$REMOVE_SCRIPT" "${@:2}"
        ;;
    --status)
        echo "Wallarm Docker Nodes:"
        if command -v docker >/dev/null 2>&1; then
            docker ps --filter "name=wallarm-" \
                --format "table {{.Names}}\t{{.Status}}\t{{.Ports}}" 2>/dev/null || true
        else
            echo "  Docker is not installed or not in PATH."
        fi
        ;;
    --help|-h)
        show_help
        ;;
    *)
        show_help
        exit 1
        ;;
esac