package cmd

import (
	"fmt"
	"os"

	"github.com/jensbecker/homelab/knecht/config"
	"github.com/jensbecker/homelab/knecht/portainer"
	"github.com/jensbecker/homelab/knecht/stack"
	"github.com/jensbecker/homelab/knecht/tui"
	"github.com/spf13/cobra"
)

var servicesPathFlag string

var rootCmd = &cobra.Command{
	Use:   "knecht",
	Short: "Homelab stack manager",
	Long:  "knecht manages Portainer stacks from your local services/ directory.",
	// No subcommand → launch TUI
	RunE: func(cmd *cobra.Command, args []string) error {
		cfg, client, svcPath, err := setup()
		if err != nil {
			return err
		}
		return tui.Run(client, svcPath, cfg)
	},
}

func Execute() {
	if err := rootCmd.Execute(); err != nil {
		os.Exit(1)
	}
}

func init() {
	rootCmd.PersistentFlags().StringVar(&servicesPathFlag, "services", "", "path to services directory (default: auto-detected from git root)")
}

// setup loads config, builds the Portainer client, and resolves the services path.
func setup() (*config.Config, *portainer.Client, string, error) {
	cfg, err := config.Load()
	if err != nil {
		return nil, nil, "", err
	}

	client, err := portainer.New(cfg.Portainer.URL, cfg.Portainer.Token, cfg.Portainer.Endpoint)
	if err != nil {
		return nil, nil, "", fmt.Errorf("connecting to Portainer: %w", err)
	}

	svcPath, err := stack.ServicesPath(servicesPathFlag)
	if svcPath == "" && err == nil {
		svcPath, err = stack.ServicesPath(cfg.ServicesPath)
	}
	if err != nil {
		return nil, nil, "", err
	}

	return cfg, client, svcPath, nil
}