Have got post creation working.

services/sitebuilder/service.go

@@ -3,11 +3,15 @@ package sitebuilder
 import (
 	"context"
 	"errors"
+	"gopkg.in/yaml.v3"
 	"lmika.dev/lmika/hugo-crm/models"
 	"lmika.dev/lmika/hugo-crm/providers/git"
 	"lmika.dev/lmika/hugo-crm/providers/hugo"
 	"lmika.dev/lmika/hugo-crm/providers/themes"
 	"log"
+	"os"
+	"path/filepath"
+	"time"
 )
 
 type Service struct {
@@ -55,3 +59,57 @@ func (s *Service) CreateNewSite(site models.Site) models.Job {
 		},
 	}
 }
+
+func (s *Service) WritePost(site models.Site, post models.Post) models.Job {
+	return models.Job{
+		Do: func(ctx context.Context) error {
+			themeMeta, ok := s.themes.Lookup(site.Theme)
+			if !ok {
+				return errors.New("theme not found")
+			}
+
+			postFilename := filepath.Join(s.hugo.SiteStagingDir(site, hugo.ContentSiteDir), themeMeta.PostDir, post.CreatedAt.Format("2006-01-02-150405.md"))
+
+			log.Printf(" .. post %v", postFilename)
+
+			if err := os.MkdirAll(filepath.Dir(postFilename), 0755); err != nil {
+				return err
+			}
+
+			frontMatter := map[string]string{
+				"date": post.PostDate.Format(time.RFC3339),
+			}
+			if post.Title != "" {
+				frontMatter["title"] = post.Title
+			} else if themeMeta.PreferTitle {
+				frontMatter["title"] = post.PostDate.Format(time.ANSIC)
+			}
+
+			fmBytes, err := yaml.Marshal(frontMatter)
+			if err != nil {
+				return err
+			}
+
+			f, err := os.Create(postFilename)
+			if err != nil {
+				return err
+			}
+			defer f.Close()
+
+			if _, err := f.WriteString("---\n"); err != nil {
+				return err
+			}
+			if _, err := f.Write(fmBytes); err != nil {
+				return err
+			}
+			if _, err := f.WriteString("---\n"); err != nil {
+				return err
+			}
+			if _, err := f.WriteString(post.Body); err != nil {
+				return err
+			}
+
+			return nil
+		},
+	}
+}