Add blog editing api

apps/blogviewer/blogviewer.go

@@ -1,9 +1,11 @@
 package blogviewer
 
 import (
+	"errors"
 	"net/http"
 	"path"
 	"personalwebsite/apps/appCtx"
+	"personalwebsite/errormessage"
 	"personalwebsite/webfilesystem"
 
 	"github.com/gin-gonic/gin"
@@ -27,6 +29,48 @@ func (b *BlogViewerApplication) GetAppID() string {
 }
 func (b *BlogViewerApplication) PrivateRoutes(route *gin.RouterGroup) {
 	b.PublicRoutes(route)
+
+	route.POST("edit", func(ctx *gin.Context) {
+		filePath := ctx.Query("path")
+		if filePath == "" {
+			ctx.JSON(http.StatusBadRequest, errormessage.ErrorMessage{
+				Message: "File path is empty",
+			})
+		}
+		blogData := BlogFileData{}
+		err := ctx.BindJSON(&blogData)
+		if err != nil {
+			ctx.Status(http.StatusBadRequest)
+			return
+		}
+
+		err = b.Edit(filePath, blogData)
+		if err != nil {
+			ctx.JSON(http.StatusInternalServerError, errormessage.ErrorMessage{
+				Message: err.Error(),
+			})
+			return
+		}
+		ctx.Status(http.StatusOK)
+	})
+
+	route.GET("read", func(ctx *gin.Context) {
+		filePath := ctx.Query("path")
+		if filePath == "" {
+			ctx.JSON(http.StatusBadRequest, errormessage.ErrorMessage{
+				Message: "File path is empty",
+			})
+		}
+
+		blogData, err := b.Read(filePath)
+		if err != nil {
+			ctx.JSON(http.StatusInternalServerError, errormessage.ErrorMessage{
+				Message: err.Error(),
+			})
+			return
+		}
+		ctx.JSON(http.StatusOK, blogData)
+	})
 }
 func (b *BlogViewerApplication) PublicRoutes(route *gin.RouterGroup) {
 	route.GET("writeMockBlog", func(ctx *gin.Context) {
@@ -120,6 +164,42 @@ func (b *BlogViewerApplication) WriteMock(path string) error {
 	return nil
 }
 
+func (b *BlogViewerApplication) Read(filePath string) (*BlogFileData, error) {
+	fileData := BlogFileData{}
+	fileHeader, err := b.fs.Read(path.Join(filePath, ".content"), &fileData)
+	if err != nil {
+		return nil, err
+	}
+
+	if fileHeader.Type != "blog-content" {
+		return nil, errors.New("wrong file type")
+	}
+
+	return &fileData, nil
+}
+
+func (b *BlogViewerApplication) Edit(filePath string, blogData BlogFileData) error {
+	contentPath := path.Join(filePath, ".content")
+	fileHeader, err := b.fs.Read(contentPath, nil)
+	if err != nil {
+		return err
+	}
+	if fileHeader.Type != "blog-content" {
+		return errors.New("wrong file type")
+	}
+
+	err = b.fs.Remove(contentPath)
+	if err != nil {
+		return err
+	}
+	fileHeader.MongoId = primitive.NewObjectID()
+	_, _, err = b.fs.Write(contentPath, fileHeader, blogData)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
 func (b *BlogViewerApplication) Render(filePath string, appCtx appCtx.AppContext) (gin.H, error) {
 	data := &BlogFileData{}
 	_, err := b.fs.Read(path.Join(filePath, ".content"), &data)