package internal

import (
	"encoding/json"

	"github.com/creasty/defaults"
)

// Entry ...
type Entry struct {
	URL         string
	Title       string
	Author      string
	Summary     string
	Content     string
	HTMLContent string
	Length      int

	hash string
}

func LoadEntry(data []byte) (entry *Entry, err error) {
	entry = &Entry{}
	if err := defaults.Set(entry); err != nil {
		return nil, err
	}

	if err = json.Unmarshal(data, &entry); err != nil {
		return nil, err
	}

	return
}

func (e *Entry) String() string {
	return e.URL
}

func (e *Entry) Hash() string {
	if e.hash != "" {
		return e.hash
	}

	hash := FastHash(e.String())
	e.hash = hash[len(hash)-URLHashLength:]

	return e.hash
}

func (e *Entry) Bytes() ([]byte, error) {
	data, err := json.Marshal(e)
	if err != nil {
		return nil, err
	}
	return data, nil
}