package main

import (
	"fmt"

	"github.com/beanzilla/gonode"
)

type Location struct {
	N_System *gonode.Node `json:"-"`
	N_Planet *gonode.Node `json:"-"`
	System   string       `json:"system"`
	Planet   string       `json:"planet"`
}

func (l *Location) String() string {
	return fmt.Sprintf("%s in %s", l.Planet, l.System)
}

func (l *Location) Parse(n *gonode.Node) error {
	txt := fmt.Sprintf("%v", n.Data())
	switch Key(txt) {
	case "system":
		l.N_System = n
		l.System = Value(txt)
	case "planet":
		l.N_Planet = n
		l.Planet = Value(txt)
	}
	return nil
}

func (l *Location) Valid() bool {
	return l.N_Planet != nil && l.N_System != nil
}

func (l *Location) Update() error {
	if l.N_System == nil || l.N_Planet == nil {
		return fmt.Errorf("missing both nodes, locations are 2 nodes, can't update")
	}
	l.N_Planet.SetData(fmt.Sprintf("planet %s", Format(l.Planet)))
	l.N_System.SetData(fmt.Sprintf("system %s", Format(l.System)))
	return nil
}