From 8fb892c5a9b2cdf4614759775d652c7ccb55dab5 Mon Sep 17 00:00:00 2001
From: Vincent Batts <vbatts@hashbangbash.com>
Date: Tue, 12 Mar 2019 16:08:25 -0400
Subject: [PATCH] minio: WIP

---
 dbutil/minio/minio.go | 98 +++++++++++++++++++++++++++++++++++++++++++
 server.go             |  5 ++-
 2 files changed, 102 insertions(+), 1 deletion(-)
 create mode 100644 dbutil/minio/minio.go

diff --git a/dbutil/minio/minio.go b/dbutil/minio/minio.go
new file mode 100644
index 0000000..e0dba93
--- /dev/null
+++ b/dbutil/minio/minio.go
@@ -0,0 +1,98 @@
+package minio
+
+import (
+	"encoding/json"
+	"fmt"
+
+	"github.com/hashicorp/errwrap"
+	"github.com/minio/minio-go"
+	"github.com/vbatts/imgsrv/dbutil"
+	"github.com/vbatts/imgsrv/types"
+)
+
+type minioConfig struct {
+	Endpoint        string
+	AccessKeyID     string
+	SecretAccessKey string
+	Secure          bool
+	Region          string
+
+	Bucket string
+}
+
+func init() {
+	dbutil.Handles["minio"] = &minioHandle{}
+}
+
+type minioHandle struct {
+	Config minioConfig
+	Client *minio.Client
+}
+
+func (mh *minioHandle) Init(config []byte, err error) error {
+	if err != nil {
+		return errwrap.Wrapf("minio Init: {{er}}", err)
+	}
+
+	mh.Config = minioConfig{}
+	if err := json.Unmarshal(config, &mh.Config); err != nil {
+		return err
+	}
+
+	mh.Client, err = minio.NewWithRegion(mh.Config.Endpoint, mh.Config.AccessKeyID, mh.Config.SecretAccessKey, mh.Config.Secure, mh.Config.Region)
+	if err != nil {
+		return errwrap.Wrapf("minio Client: {{er}}", err)
+	}
+
+	if buc, err := mh.Client.BucketExists(mh.Config.Bucket); err != nil || !buc {
+		return fmt.Errorf("can not access bucket %q", mh.Config.Bucket)
+	}
+	return nil
+}
+
+// ErrNotImplemented for functions as the stubs are being written
+var ErrNotImplemented = fmt.Errorf("function not implemented")
+
+func (mh *minioHandle) Close() error {
+	return nil
+}
+
+func (mh *minioHandle) Open(filename string) (dbutil.File, error) {
+	return nil, ErrNotImplemented
+}
+func (mh *minioHandle) Create(filename string) (dbutil.File, error) {
+	return nil, ErrNotImplemented
+}
+func (mh *minioHandle) Remove(filename string) error {
+	return mh.Client.RemoveObject(mh.Config.Bucket, filename)
+}
+
+func (mh *minioHandle) HasFileByFilename(filename string) (exists bool, err error) {
+	return false, ErrNotImplemented
+}
+func (mh *minioHandle) FindFilesByKeyword(keyword string) (files []types.File, err error) {
+	return nil, ErrNotImplemented
+}
+func (mh *minioHandle) FindFilesByMd5(md5 string) (files []types.File, err error) {
+	return nil, ErrNotImplemented
+}
+func (mh *minioHandle) FindFilesByPatt(filenamePat string) (files []types.File, err error) {
+	return nil, ErrNotImplemented
+}
+
+func (mh *minioHandle) CountFiles(filename string) (int, error) {
+	return -1, ErrNotImplemented
+}
+
+func (mh *minioHandle) GetFiles(limit int) (files []types.File, err error) {
+	return nil, ErrNotImplemented
+}
+func (mh *minioHandle) GetFileByFilename(filename string) (types.File, error) {
+	return types.File{}, ErrNotImplemented
+}
+func (mh *minioHandle) GetExtensions() (kp []types.IdCount, err error) {
+	return nil, ErrNotImplemented
+}
+func (mh *minioHandle) GetKeywords() (kp []types.IdCount, err error) {
+	return nil, ErrNotImplemented
+}
diff --git a/server.go b/server.go
index b0656a1..abed701 100644
--- a/server.go
+++ b/server.go
@@ -16,6 +16,7 @@ import (
 	"github.com/vbatts/imgsrv/assets"
 	"github.com/vbatts/imgsrv/config"
 	"github.com/vbatts/imgsrv/dbutil"
+	_ "github.com/vbatts/imgsrv/dbutil/minio"
 	_ "github.com/vbatts/imgsrv/dbutil/mongo"
 	"github.com/vbatts/imgsrv/hash"
 	"github.com/vbatts/imgsrv/types"
@@ -39,7 +40,8 @@ func runServer(c *config.Config) {
 		log.Fatalf("DbHandler %q not found", serverConfig.DbHandler)
 	}
 
-	if serverConfig.DbHandler == "mongo" {
+	switch {
+	case serverConfig.DbHandler == "mongo":
 		duConfig = struct {
 			Seed   string
 			User   string
@@ -51,6 +53,7 @@ func runServer(c *config.Config) {
 			serverConfig.MongoPassword,
 			serverConfig.MongoDbName,
 		}
+	case serverConfig.DbHandler == "minio":
 	}
 
 	if err := du.Init(json.Marshal(duConfig)); err != nil {