1 files changed, 79 insertions, 0 deletions
diff --git a/imageprocessor/imageprocessor.go b/imageprocessor/imageprocessor.go
new file mode 100644
index 0000000..905b522
--- /dev/null
+++ b/imageprocessor/imageprocessor.go
@@ -0,0 +1,79 @@
+package imageprocessor
+
+import (
+	"mandible/uploadedfile"
+)
+
+type multiProcessType []ProcessType
+
+func (this multiProcessType) Process(image *uploadedfile.UploadedFile) error {
+	for _, processor := range this {
+		err := processor.Process(image)
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+type asyncProcessType []ProcessType
+
+func (this asyncProcessType) Process(image *uploadedfile.UploadedFile) error {
+	errs := make(chan error, len(this))
+
+	for _, processor := range this {
+		go func(p ProcessType) {
+			errs <- p.Process(image)
+		}(processor)
+	}
+
+	for i := 0; i < len(this); i++ {
+		select {
+		case err := <-errs:
+			if err != nil {
+				return err
+			}
+		}
+	}
+
+	return nil
+}
+
+type ProcessType interface {
+	Process(image *uploadedfile.UploadedFile) error
+}
+
+type ImageProcessor struct {
+	processor ProcessType
+}
+
+func (this *ImageProcessor) Run(image *uploadedfile.UploadedFile) error {
+	return this.processor.Process(image)
+}
+
+func Factory(maxFileSize int64, file *uploadedfile.UploadedFile) (*ImageProcessor, error) {
+	size, err := file.FileSize()
+	if err != nil {
+		return &ImageProcessor{}, err
+	}
+
+	processor := multiProcessType{}
+	processor = append(processor, &ImageOrienter{})
+
+	if size > maxFileSize {
+		processor = append(processor, &ImageScaler{maxFileSize})
+	}
+
+	async := asyncProcessType{}
+
+	for _, t := range file.GetThumbs() {
+		async = append(async, t)
+	}
+
+	if len(async) > 0 {
+		processor = append(processor, async)
+	}
+
+	return &ImageProcessor{processor}, nil
+}