added routes for delete api

restructure database package files
renamed:    database/addDoc.go -> database/doc.go
renamed:    database/addImage.go -> database/image.go
modified:   router/api.go - added routes for delete api
renamed:    util/handlers/docs/handleDocsUpload.go -> util/handlers/docs/handleDocUpload.go

Author: ankit-pn

database/addDoc.go database/doc.go

@@ -19,3 +19,17 @@ func AddDoc(fileName string, fileHashBuffer []byte) (string, bool) {
 		return entries[0].FileName, true
 	}
 }
+
+
+func DeleteDoc(fileName string) (string, bool) {
+	var doc models.Doc
+
+	result := DB.Where("file_name = ?", fileName).First(&doc)
+
+	if result.Error == nil {
+		DB.Delete(&doc)
+		return fileName, true
+	} else {
+		return "", false
+	}
+}

database/addImage.go database/image.go

@@ -19,3 +19,16 @@ func AddImage(fileName string, fileHashBuffer []byte) (string, bool) {
 		return entries[0].FileName, true
 	}
 }
+
+func DeleteImage(fileName string) (string, bool) {
+	var image models.Image
+
+	result := DB.Where("file_name = ?", fileName).First(&image)
+
+	if result.Error == nil {
+		DB.Delete(&image)
+		return fileName, true
+	} else {
+		return "", false
+	}
+}

router/api.go

@@ -29,6 +29,12 @@ func AddApiRoutes(r *gin.Engine) {
 	upload := cdn.Group("/upload")
 	{
 		upload.POST("/image", iHandlers.HandleImageUpload)
-		upload.POST("/doc", dHandlers.HandleDocsUpload)
+		upload.POST("/doc", dHandlers.HandleDocUpload)
+	}
+
+	delete := cdn.Group("/delete")
+	{
+		delete.DELETE("/image/:filename", iHandlers.HandleImageDelete)
+		delete.DELETE("/doc/:filename", dHandlers.HandleDocDelete)
 	}
 }

util/handlers/docs/handleDocDelete.go

@@ -0,0 +1,36 @@
+package handlers
+
+import (
+	"net/http"
+
+	"fmt"
+	"github.com/gin-gonic/gin"
+	"github.com/go-fast-cdn/database"
+	"github.com/go-fast-cdn/util"
+	"os"
+)
+
+func HandleDocDelete(c *gin.Context) {
+	fileName := c.Param("filename")
+	if fileName == "" {
+		c.JSON(http.StatusBadRequest, gin.H{
+			"error": "Doc name is required",
+		})
+		return
+	}
+	deletedFileName, success := database.DeleteDoc(fileName)
+	filePath := fmt.Sprintf("%v/uploads/docs/%v", util.ExPath, deletedFileName)
+	err := os.Remove(filePath)
+	if success && err == nil {
+		c.JSON(http.StatusOK, gin.H{
+			"message":  "Document deleted successfuly",
+			"fileName": deletedFileName,
+		})
+	} else {
+		fmt.Println(success)
+		fmt.Println(err)
+		c.JSON(http.StatusNotFound, gin.H{
+			"error": "Document not found",
+		})
+	}
+}

util/handlers/docs/handleDocsUpload.go util/handlers/docs/handleDocUpload.go

@@ -10,7 +10,7 @@ import (
 	"github.com/go-fast-cdn/util"
 )
 
-func HandleDocsUpload(c *gin.Context) {
+func HandleDocUpload(c *gin.Context) {
 	fileHeader, err := c.FormFile("doc")
 	newName := c.PostForm("filename")
 

util/handlers/image/handleImageDelete.go

@@ -0,0 +1,33 @@
+package handlers
+
+import (
+	"fmt"
+	"github.com/gin-gonic/gin"
+	"github.com/go-fast-cdn/database"
+	"github.com/go-fast-cdn/util"
+	"net/http"
+	"os"
+)
+
+func HandleImageDelete(c *gin.Context) {
+	fileName := c.Param("filename")
+	if fileName == "" {
+		c.JSON(http.StatusBadRequest, gin.H{
+			"error": "Doc name is required",
+		})
+		return
+	}
+	deletedFileName, success := database.DeleteImage(fileName)
+	filePath := fmt.Sprintf("%v/uploads/images/%v", util.ExPath, deletedFileName)
+	err := os.Remove(filePath)
+	if success && err == nil {
+		c.JSON(http.StatusOK, gin.H{
+			"message":  "Image deleted successfuly",
+			"fileName": deletedFileName,
+		})
+	} else {
+		c.JSON(http.StatusNotFound, gin.H{
+			"error": "Image not found",
+		})
+	}
+}