package cmd

import (
	"github.com/portainer/kubesolo-os/update/pkg/bootenv"
)

// opts holds shared command-line options for all subcommands.
type opts struct {
	ServerURL   string
	GrubenvPath string
	TimeoutSecs int
	PubKeyPath  string
	BootEnvType string // "grub" or "rpi"
	BootEnvPath string // path for RPi boot control dir
}

// NewBootEnv creates a BootEnv from the parsed options.
func (o opts) NewBootEnv() bootenv.BootEnv {
	switch o.BootEnvType {
	case "rpi":
		return bootenv.NewRPi(o.BootEnvPath)
	default:
		return bootenv.NewGRUB(o.GrubenvPath)
	}
}

// parseOpts extracts command-line flags from args.
// Simple parser — no external dependencies.
func parseOpts(args []string) opts {
	o := opts{
		GrubenvPath: "/boot/grub/grubenv",
		TimeoutSecs: 120,
		BootEnvType: "grub",
	}

	for i := 0; i < len(args); i++ {
		switch args[i] {
		case "--server":
			if i+1 < len(args) {
				o.ServerURL = args[i+1]
				i++
			}
		case "--grubenv":
			if i+1 < len(args) {
				o.GrubenvPath = args[i+1]
				i++
			}
		case "--timeout":
			if i+1 < len(args) {
				val := 0
				for _, c := range args[i+1] {
					if c >= '0' && c <= '9' {
						val = val*10 + int(c-'0')
					}
				}
				if val > 0 {
					o.TimeoutSecs = val
				}
				i++
			}
		case "--pubkey":
			if i+1 < len(args) {
				o.PubKeyPath = args[i+1]
				i++
			}
		case "--bootenv":
			if i+1 < len(args) {
				o.BootEnvType = args[i+1]
				i++
			}
		case "--bootenv-path":
			if i+1 < len(args) {
				o.BootEnvPath = args[i+1]
				i++
			}
		}
	}

	return o
}