package cmd

import (
	"fmt"

	"github.com/portainer/kubesolo-os/update/pkg/grubenv"
)

// Status displays the current A/B slot configuration and boot state.
func Status(args []string) error {
	opts := parseOpts(args)
	env := grubenv.New(opts.GrubenvPath)

	vars, err := env.ReadAll()
	if err != nil {
		return fmt.Errorf("reading GRUB environment: %w", err)
	}

	activeSlot := vars["active_slot"]
	bootCounter := vars["boot_counter"]
	bootSuccess := vars["boot_success"]

	passiveSlot := "B"
	if activeSlot == "B" {
		passiveSlot = "A"
	}

	fmt.Println("KubeSolo OS — A/B Partition Status")
	fmt.Println("───────────────────────────────────")
	fmt.Printf("  Active slot:   %s\n", activeSlot)
	fmt.Printf("  Passive slot:  %s\n", passiveSlot)
	fmt.Printf("  Boot counter:  %s\n", bootCounter)
	fmt.Printf("  Boot success:  %s\n", bootSuccess)

	if bootSuccess == "1" {
		fmt.Println("\n  ✓ System is healthy (boot confirmed)")
	} else if bootCounter == "0" {
		fmt.Println("\n  ✗ Boot counter exhausted — rollback will occur on next reboot")
	} else {
		fmt.Printf("\n  ⚠ Boot pending verification (%s attempts remaining)\n", bootCounter)
	}

	return nil
}