feat: added navbar system with some refactors

api/page.go

@@ -1,11 +1,12 @@
 package api
 
 import (
-	"GohCMS2/adapters/secondary"
 	"bytes"
 	"encoding/json"
 	"github.com/go-chi/chi/v5"
+	"html/template"
 	"net/http"
+	"path/filepath"
 	"strings"
 )
 
@@ -15,16 +16,28 @@ type LoginPage struct {
 }
 
 func getPage(page string, data interface{}) ([]byte, error) {
-	template := secondary.GetTemplate(page)
-	processed, err := secondary.ProcessTemplate(template, data)
+	var processedHTML bytes.Buffer
+	tmpl, err := template.ParseFiles("./web/templates/" + page + ".html")
 	if err != nil {
 		return nil, err
 	}
-	return processed, nil
+	err = tmpl.Execute(&processedHTML, data)
+	if err != nil {
+		return nil, err
+	}
+	return processedHTML.Bytes(), nil
 }
 
 func getLoginPageHandler(errMsg string) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
+		if IsLoggedIn(r) {
+			http.Redirect(w, r, "/home", http.StatusSeeOther)
+			return
+		}
+		if r.Method == http.MethodPost {
+			postLoginPage(w, r)
+			return
+		}
 		bs, err := getPage("login", &LoginPage{
 			IsError: strings.Compare(errMsg, "") != 0,
 			Error:   errMsg,
@@ -44,6 +57,7 @@ func postLoginPage(w http.ResponseWriter, r *http.Request) {
 		Password: r.FormValue("password"),
 	})
 	if err != nil {
+		r.Method = http.MethodGet
 		getLoginPageHandler("Missing username or password.")(w, r)
 		return
 	}
@@ -52,37 +66,78 @@ func postLoginPage(w http.ResponseWriter, r *http.Request) {
 	response, err := http.Post("http://localhost:8080/v1/auth/login", "application/json", bytes.NewBuffer(credentials))
 	// TODO handle possible errors in separate file (api package)
 	if err != nil || response.StatusCode != http.StatusOK {
+		r.Method = http.MethodGet
 		getLoginPageHandler("Invalid username or password.")(w, r)
 		return
 	}
 
 	w.Header().Set("Set-Cookie", response.Header.Get("Set-Cookie"))
 
-	http.Redirect(w, r, "/home", http.StatusFound)
+	http.Redirect(w, r, "/home", http.StatusSeeOther)
 }
 
 func getHomePage(w http.ResponseWriter, _ *http.Request) {
-	bs, err := getPage("home", nil)
-	if err != nil {
-		_, _ = w.Write([]byte(err.Error()))
-	}
-	_, _ = w.Write(bs)
+	navbarTmpl, _ := getPage("componentNavbar", nil)
+	homeTmpl, _ := getPage("home", map[string]interface{}{
+		"Navbar": template.HTML(navbarTmpl),
+	})
+	_, _ = w.Write(homeTmpl)
+}
+
+func getLogin(w http.ResponseWriter, r *http.Request) {
+	http.Redirect(w, r, "/login", http.StatusPermanentRedirect)
+}
+
+func getLogout(w http.ResponseWriter, r *http.Request) {
+	removeJwtCookie(w)
+	http.Redirect(w, r, "/login", http.StatusSeeOther)
 }
 
 func IsLoggedInMiddleware(next http.Handler) http.Handler {
 	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		if !IsLoggedIn(r) {
-			http.Redirect(w, r, "/login", http.StatusFound)
+			http.Redirect(w, r, "/login", http.StatusSeeOther)
 			return
 		}
 		next.ServeHTTP(w, r)
 	})
 }
 
+func staticFileServerWithContentType(dir http.Dir) http.Handler {
+	contentTypes := map[string]string{
+		".css":  "text/css",
+		".js":   "application/javascript",
+		".png":  "image/png",
+		".jpg":  "image/jpeg",
+		".webp": "image/webp",
+		".svg":  "image/svg+xml",
+		".ico":  "image/x-icon",
+	}
+
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		requestedFilePath := r.URL.Path
+		fileExtension := filepath.Ext(requestedFilePath)
+
+		if contentType, ok := contentTypes[fileExtension]; ok {
+			w.Header().Set("Content-Type", contentType)
+		}
+
+		http.FileServer(dir).ServeHTTP(w, r)
+	})
+}
+
 func NewPageRouter() http.Handler {
 	r := chi.NewRouter()
+
+	r.Handle("/static/*", http.StripPrefix("/static/", staticFileServerWithContentType("./web/static")))
+	r.HandleFunc("/favicon.ico", func(w http.ResponseWriter, r *http.Request) {
+		http.ServeFile(w, r, "./web/static/favicon.ico")
+	})
+
+	r.Get("/", getLogin)
 	r.Get("/login", getLoginPageHandler(""))
-	r.Post("/login", postLoginPage)
+	r.Post("/login", getLoginPageHandler(""))
+	r.Get("/logout", getLogout)
 
 	r.Group(func(r chi.Router) {
 		r.Use(IsLoggedInMiddleware)