Started working on pages

services/pages/services.go

@@ -0,0 +1,183 @@
+package pages
+
+import (
+	"context"
+	"errors"
+	"lmika.dev/lmika/hugo-cms/models"
+	"lmika.dev/lmika/hugo-cms/providers/db"
+	"lmika.dev/lmika/hugo-cms/services/jobs"
+	"lmika.dev/lmika/hugo-cms/services/sitebuilder"
+	"lmika.dev/pkg/modash/moslice"
+	"strings"
+	"time"
+	"unicode"
+)
+
+type Service struct {
+	db   *db.DB
+	sb   *sitebuilder.Service
+	jobs *jobs.Service
+}
+
+func New(
+	db *db.DB,
+	sb *sitebuilder.Service,
+	jobs *jobs.Service,
+) *Service {
+	return &Service{
+		db:   db,
+		sb:   sb,
+		jobs: jobs,
+	}
+}
+
+func (s *Service) ListPagesOfSite(ctx context.Context, site models.Site) ([]models.Page, error) {
+	return s.db.ListPagesOfSite(ctx, site.ID)
+}
+
+func (s *Service) GetPage(ctx context.Context, id int) (models.Page, error) {
+	post, err := s.db.GetPage(ctx, int64(id))
+	if err != nil {
+		return models.Page{}, err
+	}
+
+	return post, nil
+}
+
+func (s *Service) DeletePage(ctx context.Context, site models.Site, id int) error {
+	post, err := s.db.GetPage(ctx, int64(id))
+	if err != nil {
+		return err
+	}
+
+	if err := s.db.DeletePage(ctx, int64(id)); err != nil {
+		return err
+	}
+
+	return s.jobs.Queue(ctx, s.sb.DeletePage(site, post))
+}
+
+func (s *Service) Create(ctx context.Context, site models.Site, req NewPost) (models.Page, error) {
+	siteBundles, err := s.db.ListBundles(ctx, site.ID)
+	if err != nil {
+		return models.Page{}, err
+	} else if len(siteBundles) == 0 {
+		return models.Page{}, errors.New("no bundles found")
+	}
+
+	rootBundle, ok := moslice.FindWhere(siteBundles, func(t models.Bundle) bool {
+		return t.Name == models.RootBundleName
+	})
+	if !ok {
+		return models.Page{}, errors.New("root bundle not found")
+	}
+
+	publishTime := time.Now()
+
+	name := s.normalizePageName(req.Title)
+	nameProvenance := models.TitleNameProvenance
+	if name == "" {
+		// Use the timestamp as the name
+		name = publishTime.Format("2006-01-02-150405")
+		nameProvenance = models.DateNameProvenance
+	}
+
+	post := models.Page{
+		SiteID:         site.ID,
+		BundleID:       rootBundle.ID,
+		Name:           s.normalizePageName(req.Title),
+		NameProvenance: nameProvenance,
+		Title:          req.Title,
+		Body:           req.Body,
+		State:          models.PostStatePublished,
+		PublishDate:    time.Now(),
+	}
+
+	if err := s.save(ctx, site, rootBundle, &post); err != nil {
+		return models.Page{}, err
+	}
+
+	return post, nil
+}
+
+func (s *Service) Update(ctx context.Context, site models.Site, pageID int64, req NewPost) (models.Page, error) {
+	page, err := s.db.GetPage(ctx, pageID)
+	if err != nil {
+		return models.Page{}, err
+	}
+
+	if page.SiteID != site.ID {
+		return models.Page{}, errors.New("page not found")
+	}
+
+	bundle, err := s.db.GetBundleWithID(ctx, page.BundleID)
+	if err != nil {
+		return models.Page{}, err
+	} else if bundle.SiteID != site.ID {
+		return models.Page{}, errors.New("page not found")
+	}
+
+	// Update the title if it wasn't set by the user
+	if page.NameProvenance != models.UserNameProvenance {
+		if req.Title == "" {
+			page.Name = page.PublishDate.Format("2006-01-02-150405")
+			page.NameProvenance = models.DateNameProvenance
+		} else {
+			page.Name = s.normalizePageName(req.Title)
+			page.NameProvenance = models.TitleNameProvenance
+		}
+	}
+	page.Title = req.Title
+	page.Body = req.Body
+
+	if err := s.save(ctx, site, bundle, &page); err != nil {
+		return models.Page{}, err
+	}
+
+	return page, nil
+}
+
+func (s *Service) save(ctx context.Context, site models.Site, bundle models.Bundle, page *models.Page) error {
+	page.SiteID = site.ID
+
+	if page.ID == 0 {
+		page.CreatedAt = time.Now()
+		page.UpdatedAt = time.Now()
+		if err := s.db.InsertPage(ctx, page); err != nil {
+			return err
+		}
+	} else {
+		page.UpdatedAt = time.Now()
+		if err := s.db.UpdatePage(ctx, page); err != nil {
+			return err
+		}
+	}
+
+	return s.jobs.Queue(ctx, s.sb.WritePage(site, bundle, *page))
+}
+
+func (s *Service) normalizePageName(title string) string {
+	var sb strings.Builder
+	lastSpace := false
+	for _, r := range title {
+		switch {
+		case unicode.IsSpace(r):
+			if !lastSpace {
+				sb.WriteRune('-')
+				lastSpace = true
+			}
+		case unicode.IsNumber(r):
+			lastSpace = false
+			sb.WriteRune(r)
+		case unicode.IsLetter(r):
+			lastSpace = false
+			sb.WriteRune(unicode.ToLower(r))
+		}
+	}
+	return sb.String()
+}
+
+type NewPost struct {
+	Title string
+	Body  string
+}