feat: post edition save

api/dependecyInjection.go

@@ -14,6 +14,7 @@ type UseCases struct {
 	CreatePostUseCase *useCases.CreatePostUseCase
 	GetPostUseCase    *useCases.GetPostUseCase
 	ListPostsUseCase  *useCases.ListPostsUseCase
+	UpdatePostUseCase *useCases.UpdatePostUseCase
 	GetUserUseCase    *useCases.GetUserUseCase
 	CreateUserUseCase *useCases.CreateUserUseCase
 	UpdateUserUseCase *useCases.UpdateUserUseCase
@@ -49,6 +50,7 @@ func InitContainer() {
 			CreatePostUseCase: useCases.NewCreatePostUseCase(db),
 			GetPostUseCase:    useCases.NewGetPostUseCase(db),
 			ListPostsUseCase:  useCases.NewListPostsUseCase(db),
+			UpdatePostUseCase: useCases.NewUpdatePostUseCase(db),
 			GetUserUseCase:    useCases.NewGetUserUseCase(db),
 			CreateUserUseCase: useCases.NewCreateUserUseCase(db),
 			UpdateUserUseCase: useCases.NewUpdateUserUseCase(db),

api/page.go

@@ -123,6 +123,7 @@ func NewPageRouter() http.Handler {
 		r.Get("/home", GetHomePage)
 		r.Get("/post", GetPostsPage)
 		r.Get("/post/{name}/edit", GetPostEditPage)
+		r.Post("/post/{name}/edit", PostPostEditPage)
 		r.Get("/post/create", GetPostCreatePage)
 		r.Post("/post/create", PostPostCreatePage)
 	})

api/pagePostEdit.go

@@ -4,22 +4,65 @@ import (
 	"github.com/go-chi/chi/v5"
 	"html/template"
 	"net/http"
+	"net/url"
 )
 
+type PostEditPageAlert struct {
+	IsError bool
+	Message string
+}
+
+func getPostEditPageTemplate(body string, alert PostEditPageAlert) []byte {
+	navbarTmpl, _ := Container.GetPageUseCase.GetPage("componentNavbar", nil)
+	postTmpl, _ := Container.GetPageUseCase.GetPage("postEdit", map[string]interface{}{
+		"Navbar": template.HTML(navbarTmpl),
+		"Head":   headTmpl,
+		"Body":   body,
+		"Alert":  alert,
+	})
+	return postTmpl
+}
+
+func PostPostEditPage(w http.ResponseWriter, r *http.Request) {
+	postName := chi.URLParam(r, "name")
+	if len(postName) == 0 {
+		_, _ = w.Write(getPostEditPageTemplate("", PostEditPageAlert{
+			IsError: true,
+			Message: "Could not find the requested post.",
+		}))
+		return
+	}
+
+	_ = r.ParseForm()
+	postBody := r.FormValue("postBody")
+
+	parsedName, _ := url.PathUnescape(postName)
+	post, _ := Container.GetPostUseCase.GetPostByName(parsedName)
+	err := Container.UpdatePostUseCase.UpdateBody(post.ID, postBody)
+	if err != nil {
+		_, _ = w.Write(getPostEditPageTemplate(postBody, PostEditPageAlert{
+			IsError: true,
+			Message: "Could not save the post: " + err.Error(),
+		}))
+		return
+	}
+
+	_, _ = w.Write(getPostEditPageTemplate(postBody, PostEditPageAlert{
+		IsError: false,
+		Message: "Post successfully edited!",
+	}))
+}
+
 func GetPostEditPage(w http.ResponseWriter, r *http.Request) {
 	postName := chi.URLParam(r, "name")
 	if len(postName) == 0 {
 		w.WriteHeader(http.StatusBadRequest)
 		return
 	}
-
-	post, _ := Container.GetPostUseCase.GetPostByName(postName)
-
-	navbarTmpl, _ := Container.GetPageUseCase.GetPage("componentNavbar", nil)
-	postsTmpl, _ := Container.GetPageUseCase.GetPage("postEdit", map[string]interface{}{
-		"Navbar": template.HTML(navbarTmpl),
-		"Head":   headTmpl,
-		"Body":   post.Body,
-	})
-	_, _ = w.Write(postsTmpl)
+	parsedName, _ := url.PathUnescape(postName)
+	post, _ := Container.GetPostUseCase.GetPostByName(parsedName)
+	_, _ = w.Write(getPostEditPageTemplate(post.Body, PostEditPageAlert{
+		IsError: false,
+		Message: "",
+	}))
 }