From 8bf8de541ac90bda96751b5bc3103f50cc46bbd4 Mon Sep 17 00:00:00 2001
From: Georg Spar <g.spar@sparg.com>
Date: Wed, 21 Jun 2023 21:35:47 +0200
Subject: [PATCH] fileupload versuch

---
 data.go |  3 +++
 wdm.go  | 78 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 81 insertions(+)

diff --git a/data.go b/data.go
index baa4acf..44497ef 100644
--- a/data.go
+++ b/data.go
@@ -2,6 +2,9 @@ package main
 
 import "database/sql"
 
+// Pfad für die Ablage der Uploads
+var UploadPfad string = "/opt/data/uploads"
+
 // struct für das Einbinden von Items, die gekauft wurden
 type Itemb struct {
 	Id               uint64  `json:"id"`
diff --git a/wdm.go b/wdm.go
index f7713a7..9b92af5 100644
--- a/wdm.go
+++ b/wdm.go
@@ -53,6 +53,9 @@ func main() {
 	r.HandleFunc("/api/v1/itb", showItemBHandler).Methods("GET", "OPTIONS")
 	r.HandleFunc("/api/v1/itb/{id:[0-9]+}", getItemBHandler).Methods("GET", "OPTIONS")
 	r.HandleFunc("/api/v1/itb/{id:[0-9]+}", updateItemBHandler).Methods("PUT", "OPTIONS")
+
+	r.HandleFunc("/api/v1/upload", uploadFileHandler).Methods("POST", "OPTIONS")
+
 	/*
 		r.HandleFunc("/api/v1/ite", createItemExtHandler).Methods("POST", "OPTIONS")
 		r.HandleFunc("/api/v1/ite/{id:[0-9]+}", deleteItemExtHandler).Methods("DELETE", "OPTIONS")
@@ -701,3 +704,78 @@ func updateItemBHandler(writer http.ResponseWriter, req *http.Request) {
 	writer.WriteHeader(http.StatusOK)
 	writer.Write(b)
 }
+
+// Upload Funktionen
+func uploadFileHandlerHandler(writer http.ResponseWriter, req *http.Request) {
+	writer.Header().Set("Access-Control-Allow-Origin", "*")
+	if req.Method == http.MethodOptions {
+		return
+	}
+
+	err := req.ParseMultipartForm(64 << 20)
+	if err != nil {
+		writer.WriteHeader(http.StatusBadRequest)
+		return
+	}
+	var pho []Photos
+	if req.Form["files"] != nil {
+		for i := 0; i < len(req.Form["files"]); i++ {
+			log.Info("File-Name:", req.FormValue("files[i].name"))
+
+			file, handler, err := req.FormFile("files[i]")
+			if err != nil {
+				panic(err) //dont do this
+			}
+			defer file.Close()
+			os.Chdir(UploadPfad)
+			// copy example
+			f, err := os.OpenFile(handler.Filename, os.O_WRONLY|os.O_CREATE, 0666)
+			if err != nil {
+				panic(err) //please dont
+			}
+			defer f.Close()
+			io.Copy(f, file)
+
+			pho[i].Pfad = handler.Filename
+			pho[i].ItembId = 0
+			pho[i].ItemextId = 0
+
+		}
+
+		for formKey, formValue := range req.Form {
+			log.WithFields(log.Fields{formKey: formValue}).Info("parsing from Form: ")
+		}
+
+	} else {
+		body, err := io.ReadAll(req.Body)
+		if err != nil {
+			writer.WriteHeader(http.StatusBadRequest)
+		}
+		var pho []Photos
+		json.Unmarshal(body, &pho)
+	}
+	if len(pho) == 0 {
+		log.Fatal("Error: Size of Array = 0")
+		writer.WriteHeader(http.StatusInternalServerError)
+
+	}
+	for i := 0; i < len(pho); i++ {
+		log.Println(pho[i])
+		log.Println("Name= ", pho[i].Pfad)
+		log.Info("creating new Photo", pho[i].Pfad)
+		res, err := CreatePhoto(pho[i])
+		if err != nil {
+			writer.WriteHeader(http.StatusInternalServerError)
+		}
+		b, err := json.Marshal(res)
+		if err != nil {
+			log.Fatal("Error: ", err)
+		}
+		location := fmt.Sprintf("%s/%d", req.URL.String(), res.Id)
+		writer.Header().Set("Location:", location)
+		writer.Header().Set("Content-Type", "application/json")
+		writer.WriteHeader(http.StatusCreated)
+		writer.Write(b)
+	}
+
+}