feat: images

internal/components/images/controller.go

@@ -0,0 +1,49 @@
+package images
+
+import (
+	"bytes"
+	"context"
+	"errors"
+	"fmt"
+	"io"
+	"strings"
+)
+
+var ErrNotAnImage = errors.New("not an image")
+
+func (s *Service) getMime(path string) (mimeType string, err error) {
+	info, err := s.fs.Stat(path)
+	if err != nil {
+		err = fmt.Errorf("image file info could not be fetched")
+	}
+
+	if mimer, ok := info.(interface{ ContentType() string }); ok {
+		mimeType = mimer.ContentType()
+	}
+
+	return
+}
+
+func (s *Service) GetImage(ctx context.Context, uid string) (img io.Reader, mimeType string, err error) {
+	path, err := PathFromUID(uid)
+	if err != nil {
+		err = fmt.Errorf("could not get path: %w", err)
+		return
+	}
+	mimeType, err = s.getMime(path)
+	if err != nil {
+		return
+	}
+
+	if !strings.HasPrefix(mimeType, "image") {
+		err = ErrNotAnImage
+		return
+	}
+
+	file, err := s.fs.Read(path)
+	if err != nil {
+		err = fmt.Errorf("image file could not be fetched")
+	}
+
+	return bytes.NewBuffer(file), mimeType, err
+}

internal/components/images/resorce.go

@@ -0,0 +1,18 @@
+package images
+
+import "os"
+
+type Service struct {
+	fs fileSystem
+}
+
+func New(fs fileSystem) *Service {
+	return &Service{
+		fs: fs,
+	}
+}
+
+type fileSystem interface {
+	Read(path string) ([]byte, error)
+	Stat(path string) (os.FileInfo, error)
+}

internal/components/page/page.go

@@ -13,6 +13,7 @@ import (
 
 	"git.schreifuchs.ch/schreifuchs/schreifuchs.ch/internal/components/images"
 	"git.schreifuchs.ch/schreifuchs/schreifuchs.ch/internal/components/translate"
+	"git.schreifuchs.ch/schreifuchs/schreifuchs.ch/internal/filesystem"
 	"github.com/studio-b12/gowebdav"
 )
 
@@ -34,25 +35,28 @@ func (s *Service) getPageHeaders(ctx context.Context, uid string) (page PageHead
 
 	lang := translate.Language(ctx)
 
-	var coverImage *gowebdav.File
-	var contentMD *gowebdav.File
+	var coverImage filesystem.FileInfo
+	var contentMD filesystem.FileInfo
 
 	for _, f := range info {
-		file := f.(gowebdav.File)
+		file, ok := f.(filesystem.FileInfo)
+		if !ok {
+			continue
+		}
 
 		if strings.HasPrefix(file.ContentType(), "image/") {
-			coverImage = &file
+			coverImage = file
 		}
 
 		parts := strings.Split(file.Name(), ".")
 
 		// fallback content
 		if contentMD == nil && len(parts) == 2 && parts[1] == "md" {
-			contentMD = &file
+			contentMD = file
 		}
 		// language content
 		if len(parts) == 3 && parts[1] == lang && parts[2] == "md" {
-			contentMD = &file
+			contentMD = file
 		}
 	}
 
@@ -71,7 +75,9 @@ func (s *Service) getPageHeaders(ctx context.Context, uid string) (page PageHead
 
 	page.UID = uid
 	page.Title = title[1]
-	page.CoverImageUID, err = images.UIDFromPath(coverImage.Path())
+	if coverImage != nil {
+		page.CoverImageUID, err = images.UIDFromPath(coverImage.Path())
+	}
 
 	return
 }

internal/components/page/resource.go

@@ -3,14 +3,14 @@ package page
 import (
 	"log/slog"
 
-	"github.com/studio-b12/gowebdav"
+	"git.schreifuchs.ch/schreifuchs/schreifuchs.ch/internal/filesystem"
 )
 
 type Service struct {
-	fs *gowebdav.Client
+	fs filesystem.FS
 }
 
-func New(fs *gowebdav.Client) *Service {
+func New(fs filesystem.FS) *Service {
 	info, err := fs.ReadDir("/")
 	if err != nil {
 		slog.Error("could not read dir", "err", err)