package mappers

import (
	"RenewCMS/internal/domain/author"
	"RenewCMS/internal/infrastructure/persistence/models"
	"encoding/json"
)

const emptyLinks = "[]"

func decodeLinks(raw string) []author.SocialLink {
	links := []author.SocialLink{}
	if raw == "" {
		return links
	}
	if err := json.Unmarshal([]byte(raw), &links); err != nil || links == nil {
		return []author.SocialLink{}
	}
	return links
}

func encodeLinks(links []author.SocialLink) string {
	if len(links) == 0 {
		return emptyLinks
	}
	encoded, err := json.Marshal(links)
	if err != nil {
		return emptyLinks
	}
	return string(encoded)
}

func AuthorToDomain(m models.Author, articleCount int) author.Author {
	return author.Author{
		ID:           m.ID,
		Name:         m.Name,
		Slug:         m.Slug,
		Bio:          m.Bio,
		AvatarID:     m.AvatarID,
		Website:      m.Website,
		SocialLinks:  decodeLinks(m.SocialLinks),
		UserID:       m.UserID,
		IsLinked:     m.UserID != nil,
		ArticleCount: articleCount,
	}
}

func AuthorToModel(a author.Author) models.Author {
	return models.Author{
		ID:          a.ID,
		Name:        a.Name,
		Slug:        a.Slug,
		Bio:         a.Bio,
		AvatarID:    a.AvatarID,
		Website:     a.Website,
		SocialLinks: encodeLinks(a.SocialLinks),
		UserID:      a.UserID,
	}
}