package approve_former

import "strings"

type Or struct {
	childNodes []Node
}

func NewOr(childNodes ...Node) *Or {
	return &Or{
		childNodes: childNodes,
	}
}

func (or *Or) GetDepends() string {
	var depends string
	for _, childNode := range or.childNodes {
		if depends == "" {
			depends = childNode.GetDepends()
		} else {
			depends = depends + " && " + childNode.GetDepends()
		}
	}

	return depends
}

func (or *Or) GetWhen() string {
	var when string
	for _, childNode := range or.childNodes {
		if when == "" {
			when = "(" + childNode.GetWhen() + ")"
		} else {
			when = when + " || " + "(" + childNode.GetWhen() + ")"
		}
	}

	return when
}

func (or *Or) AddNodes(childNodes ...Node) *Or {
	if childNodes == nil || len(childNodes) == 0 {
		or.childNodes = append(or.childNodes, childNodes...)
	}

	return or
}

func (or *Or) Render(upperNode Node) (string, error) {
	var content string

	for _, childNode := range or.childNodes {
		childNodeContent, err := childNode.Render(upperNode)
		if err != nil {
			return "", err
		}

		content = content + childNodeContent + "\n"
	}

	content = strings.TrimSuffix(content, "\n")

	return content, nil
}