package cmd

import (
	"fmt"

	"github.com/spf13/cobra"
	"github.com/warkanum/unitdore/config"
	"github.com/warkanum/unitdore/systemd"
)

var startCmd = &cobra.Command{
	Use:   "start <name>",
	Short: "Start a unit by name",
	Args:  cobra.ExactArgs(1),
	RunE:  runStart,
}

func init() {
	rootCmd.AddCommand(startCmd)
}

func runStart(cmd *cobra.Command, args []string) error {
	cfg, err := config.Load(configPath)
	if err != nil {
		return err
	}

	name := args[0]
	u := cfg.FindUnit(name)
	if u == nil {
		return fmt.Errorf("unit %q not found", name)
	}

	prefix, suffix := cfg.Prefix, cfg.Suffix

	if !systemd.IsInstalled(*u, prefix, suffix) {
		return fmt.Errorf("%s is not installed — run 'unitdore install' first", name)
	}

	fmt.Printf("  ▶ starting %s...\n", systemd.ServiceName(*u, prefix, suffix))
	if err := systemd.Start(*u, prefix, suffix); err != nil {
		return err
	}
	fmt.Printf("  ✓ started: %s\n", name)
	return nil
}