Improved avatar generator

jobs/avatars/FileSystem.go

@@ -0,0 +1,48 @@
+package main
+
+import (
+	"bytes"
+	"image"
+	"io/ioutil"
+
+	"github.com/animenotifier/arn"
+)
+
+var fileSystemLog = avatarLog.NewChannel("SSD")
+
+// FileSystem loads avatar from the local filesystem.
+type FileSystem struct {
+	Directory string
+}
+
+// GetAvatar returns the local image for the user.
+func (source *FileSystem) GetAvatar(user *arn.User) *Avatar {
+	fullPath := arn.FindFileWithExtension(user.ID, source.Directory, arn.OriginalImageExtensions)
+
+	if fullPath == "" {
+		fileSystemLog.Error(user.Nick, "Not found on file system")
+		return nil
+	}
+
+	data, err := ioutil.ReadFile(fullPath)
+
+	if err != nil {
+		fileSystemLog.Error(user.Nick, err)
+		return nil
+	}
+
+	// Decode
+	img, format, decodeErr := image.Decode(bytes.NewReader(data))
+
+	if decodeErr != nil {
+		fileSystemLog.Error(user.Nick, decodeErr)
+		return nil
+	}
+
+	return &Avatar{
+		User:   user,
+		Image:  img,
+		Data:   data,
+		Format: format,
+	}
+}

jobs/avatars/avatars.go

@@ -54,6 +54,9 @@ func main() {
 		&MyAnimeList{
 			RequestLimiter: time.NewTicker(250 * time.Millisecond),
 		},
+		&FileSystem{
+			Directory: "images/avatars/large/",
+		},
 	}
 
 	// Define the avatar outputs
@@ -118,7 +121,6 @@ func StartWorkers(queue chan *arn.User, work func(*arn.User)) {
 
 // Work handles a single user.
 func Work(user *arn.User) {
-	fmt.Println(user.ID, "|", user.Nick)
 	user.AvatarExtension = ""
 
 	for _, source := range avatarSources {
@@ -129,6 +131,13 @@ func Work(user *arn.User) {
 			continue
 		}
 
+		sourceType := reflect.TypeOf(source).Elem().Name()
+
+		// Avoid quality loss (if it's on the file system, we don't need to write it again)
+		if sourceType == "FileSystem" {
+			continue
+		}
+
 		for _, writer := range avatarOutputs {
 			err := writer.SaveAvatar(avatar)
 
@@ -137,7 +146,7 @@ func Work(user *arn.User) {
 			}
 		}
 
-		fmt.Println(color.GreenString("✔"), reflect.TypeOf(source).Elem().Name(), "|", user.Nick, "|", avatar)
+		fmt.Println(color.GreenString("✔"), sourceType, "|", user.Nick, "|", avatar)
 		break
 	}