Files
RenewCMS/internal/infrastructure/useCases/RefreshArticleSEO.go
T

91 lines
2.6 KiB
Go

package useCases
import (
"RenewCMS/internal/domain/article"
"RenewCMS/internal/domain/localization"
"RenewCMS/internal/domain/site"
"errors"
)
const seoRefreshBatchSize = 500
type RefreshArticleSEOUseCase struct {
index article.SEOIndex
sites site.Repository
localization localization.Repository
}
func NewRefreshArticleSEOUseCase(index article.SEOIndex, sites site.Repository, localizationRepository localization.Repository) *RefreshArticleSEOUseCase {
return &RefreshArticleSEOUseCase{index: index, sites: sites, localization: localizationRepository}
}
func (u *RefreshArticleSEOUseCase) RefreshStale() error {
afterID := uint32(0)
for {
stale, err := u.index.StaleSEO(afterID, seoRefreshBatchSize)
if err != nil || len(stale) == 0 {
return err
}
context := u.siteContextReadAfter()
records := make([]article.SEORecord, 0, len(stale))
for _, version := range stale {
summary, err := context.assess(version)
if err != nil {
return err
}
records = append(records, article.SEORecord{ArticleID: version.ID, Version: version.SEOVersion, Summary: summary})
}
if err := u.index.StoreSEO(records); err != nil {
return err
}
afterID = stale[len(stale)-1].ID
}
}
func (u *RefreshArticleSEOUseCase) siteContextReadAfter() *seoSiteContext {
return &seoSiteContext{sites: u.sites, localization: u.localization, owners: map[uint32]site.Site{}, defaults: map[uint32]string{}}
}
type seoSiteContext struct {
sites site.Repository
localization localization.Repository
owners map[uint32]site.Site
defaults map[uint32]string
}
func (c *seoSiteContext) assess(version article.Article) (article.SEOSummary, error) {
owner, err := c.owner(version.SiteID)
if err != nil {
return article.SEOSummary{}, err
}
defaultTag, err := c.defaultTag(version.SiteID)
if err != nil {
return article.SEOSummary{}, err
}
return assessSEO(version, owner, localization.SiteTextAllowed(defaultTag, version.Lang)).Summary(), nil
}
func (c *seoSiteContext) owner(siteID uint32) (site.Site, error) {
if owner, cached := c.owners[siteID]; cached {
return owner, nil
}
owner, err := c.sites.Get(siteID)
if err != nil && !errors.Is(err, site.ErrSiteNotFound) {
return site.Site{}, err
}
c.owners[siteID] = owner
return owner, nil
}
func (c *seoSiteContext) defaultTag(siteID uint32) (string, error) {
if tag, cached := c.defaults[siteID]; cached {
return tag, nil
}
rows, err := c.localization.Rows(siteID)
if err != nil {
return "", err
}
c.defaults[siteID] = localization.ConfirmedDefaultTag(rows)
return c.defaults[siteID], nil
}