feat: add oss service factory implements, add support for setting custom upload handler, localstorage and minio oss

api/service/oss/uploader_manager.go

@@ -0,0 +1,37 @@
+package oss
+
+import (
+	"chatplus/core/types"
+	"strings"
+)
+
+type UploaderManager struct {
+	active         string
+	uploadServices map[string]Uploader
+}
+
+const uploaderLocal = "LOCAL"
+const uploaderMinio = "MINIO"
+
+func NewUploaderManager(config *types.AppConfig) (*UploaderManager, error) {
+	services := make(map[string]Uploader)
+	if config.OSS.Minio.AccessKey != "" {
+		minioService, err := NewMinioService(config)
+		if err != nil {
+			return nil, err
+		}
+		services[uploaderMinio] = minioService
+	}
+	if config.OSS.Local.BasePath != "" {
+		services[uploaderLocal] = NewLocalStorageService(config)
+	}
+	active := uploaderLocal
+	if config.OSS.Active != "" {
+		active = strings.ToUpper(config.OSS.Active)
+	}
+	return &UploaderManager{uploadServices: services, active: active}, nil
+}
+
+func (m *UploaderManager) GetActiveService() Uploader {
+	return m.uploadServices[m.active]
+}