package main

import "fmt"

type OutfitList struct {
	node *Node // Ref
	List []OutfitListItem
}

func (ol *OutfitList) Parse(node *Node) error {
	if node.Key() != "outfits" {
		return fmt.Errorf("not a outfit list")
	}
	ol.node = node
	ol.List = []OutfitListItem{}
	for _, kid := range node.Children {
		o := OutfitListItem{}
		o.Parse(kid)
		ol.AddOutfit(o)
	}
	return nil
}

func (ol *OutfitList) AddOutfit(outfit OutfitListItem) {
	ol.List = append(ol.List, outfit)
}

func (ol *OutfitList) Update() error {
	if ol.node == nil {
		return fmt.Errorf("invalid node")
	}
	ol.node.RmAllChildren()
	for _, outfit := range ol.List {
		outfit.Generate(ol.node)
	}
	return nil
}

type OutfitListItem struct {
	Name  string
	Count int
}

func (o *OutfitListItem) Parse(node *Node) error {
	o.Name = node.Key()
	if CanInt(node.Value()) {
		o.Count = node.ValueInt()
	} else {
		o.Count = 1
	}
	return nil
}

func (o *OutfitListItem) Generate(node *Node) {
	n := node.NewChild()
	if o.Count > 1 {
		n.Set(o.Name, o.Count)
	} else {
		n.Line = n.Format(o.Name)
	}
}