snapshot before merge

write-go/internal/images/images.go

@@ -0,0 +1,95 @@
+package images
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"write-server/internal/config"
+	"write-server/internal/posts"
+)
+
+type ImageFile struct {
+	Name     string `json:"name"`
+	Path     string `json:"path"`
+	Folder   string `json:"folder"`
+	Size     int64  `json:"size"`
+	URL      string `json:"url"`
+	Slug     string `json:"slug"`
+	LocalURL string `json:"localUrl"`
+}
+
+var imageExts = map[string]bool{
+	".png": true, ".jpg": true, ".jpeg": true, ".gif": true,
+	".webp": true, ".svg": true, ".bmp": true,
+}
+
+func ScanImages() []ImageFile {
+	var images []ImageFile
+	filepath.WalkDir(config.CONTENT_DIR, func(p string, d os.DirEntry, err error) error {
+		if err != nil {
+			return nil
+		}
+		if d.IsDir() {
+			if strings.HasPrefix(d.Name(), ".") {
+				return filepath.SkipDir
+			}
+			return nil
+		}
+		ext := strings.ToLower(filepath.Ext(d.Name()))
+		if !imageExts[ext] {
+			return nil
+		}
+		info, _ := d.Info()
+		size := int64(0)
+		if info != nil {
+			size = info.Size()
+		}
+
+		rel, _ := filepath.Rel(config.CONTENT_DIR, p)
+		rel = strings.ReplaceAll(rel, "\\", "/")
+		dir := filepath.Dir(p)
+
+		slug := ""
+		indexPath := filepath.Join(dir, "index.md")
+		if data, err := os.ReadFile(indexPath); err == nil {
+			fm, _ := posts.ParseFrontMatter(string(data))
+			slug = fm.Slug
+		}
+
+		u := "/" + rel
+		if slug != "" {
+			u = "/" + slug + "/" + d.Name()
+		}
+
+		images = append(images, ImageFile{
+			Name:     d.Name(),
+			Path:     rel,
+			Folder:   filepath.Dir(rel),
+			Size:     size,
+			URL:      u,
+			Slug:     slug,
+			LocalURL: fmt.Sprintf("/api/images?file=%s", rel),
+		})
+		return nil
+	})
+
+	// Sort by size desc
+	for i := 0; i < len(images); i++ {
+		for j := i + 1; j < len(images); j++ {
+			if images[j].Size > images[i].Size {
+				images[i], images[j] = images[j], images[i]
+			}
+		}
+	}
+	return images
+}
+
+func DeleteImage(relPath string) error {
+	fullPath := filepath.Join(config.CONTENT_DIR, relPath)
+	if !strings.HasPrefix(filepath.Clean(fullPath), filepath.Clean(config.CONTENT_DIR)) {
+		return fmt.Errorf("invalid path")
+	}
+	return os.Remove(fullPath)
+}