Sort books on main page by last modified

bookbrowser.go

@@ -7,6 +7,7 @@ import (
 	"os/signal"
 	"path/filepath"
 	"syscall"
+	"time"
 )
 
 // Series represents a book series
@@ -18,15 +19,16 @@ type Series struct {
 
 // Book represents a book
 type Book struct {
-	ID          string `json:"id"`
-	Title       string `json:"title"`
-	Author      string `json:"author,omitempty"`
-	AuthorID    string `json:"authorid"`
-	Publisher   string `json:"publisher,omitempty"`
-	Description string `json:"description,omitempty"`
-	Series      Series `json:"series,omitempty"`
-	Filepath    string `json:"filepath"`
-	HasCover    bool   `json:"hascover"`
+	ID          string    `json:"id"`
+	Title       string    `json:"title"`
+	Author      string    `json:"author,omitempty"`
+	AuthorID    string    `json:"authorid"`
+	Publisher   string    `json:"publisher,omitempty"`
+	Description string    `json:"description,omitempty"`
+	Series      Series    `json:"series,omitempty"`
+	Filepath    string    `json:"filepath"`
+	HasCover    bool      `json:"hascover"`
+	ModTime     time.Time `json:"modtime,omitempty"`
 }
 
 var bookdir *string

indexer.go

@@ -49,6 +49,10 @@ func getMetadata(epub string) (*Book, error) {
 
 	book := new(Book)
 
+	if file, err := os.Stat(epub); err == nil {
+		book.ModTime = file.ModTime()
+	}
+
 	rrsk, err := zfs.Open("/" + rootfile)
 	if err != nil {
 		return nil, err

server.go

@@ -159,7 +159,14 @@ func BooksHandler(w http.ResponseWriter, r *http.Request) {
 		w.Header().Set("Content-Type", "text/html")
 		var booksHTML bytes.Buffer
 		booksHTML.WriteString(`<div class="books cards">`)
+		matched := []Book{}
 		for _, b := range books {
+			matched = append(matched, b)
+		}
+		sort.Slice(matched, func(i, j int) bool {
+			return matched[i].ModTime.Unix() > matched[j].ModTime.Unix()
+		})
+		for _, b := range matched {
 			booksHTML.WriteString(bookHTML(&b, true))
 		}
 		booksHTML.WriteString(`</div>`)