🎉 first commit

app/http_handlers/url_create.go

@@ -0,0 +1,75 @@
+package httpHandlers
+
+import (
+	"github.com/aykhans/oh-my-url/app/utils"
+	"html/template"
+	"net/http"
+	netUrl "net/url"
+	"regexp"
+)
+
+type CreateData struct {
+	ShortedURL string
+	MainURL    string
+	Error      string
+}
+
+func (hl *HandlerCreate) UrlCreate(w http.ResponseWriter, r *http.Request) {
+	if r.URL.Path != "/" {
+		http.NotFound(w, r)
+		return
+	}
+
+	tmpl, err := template.ParseFiles(utils.GetTemplatePaths("index.html")...)
+	if err != nil {
+		InternalServerError(w, err)
+		return
+	}
+
+	switch r.Method {
+	case http.MethodGet:
+		err = tmpl.Execute(w, nil)
+		if err != nil {
+			InternalServerError(w, err)
+			return
+		}
+	case http.MethodPost:
+		url := r.FormValue("url")
+		urlRegex := regexp.MustCompile(`^(http|https)://[a-zA-Z0-9.-]+(?:\:[0-9]+)?(?:/[^\s]*)?$`)
+		isValidUrl := urlRegex.MatchString(url)
+		if !isValidUrl {
+			data := CreateData{
+				MainURL: url,
+				Error:   "Invalid URL",
+			}
+			err = tmpl.Execute(w, data)
+			if err != nil {
+				InternalServerError(w, err)
+			}
+			return
+		}
+
+		key, err := hl.DB.CreateURL(url)
+		if err != nil {
+			InternalServerError(w, err)
+			return
+		}
+		shortedURL, err := netUrl.JoinPath(hl.ForwardDomain, key)
+		if err != nil {
+			InternalServerError(w, err)
+			return
+		}
+		data := CreateData{
+			ShortedURL: shortedURL,
+			MainURL:    url,
+		}
+		err = tmpl.Execute(w, data)
+		if err != nil {
+			InternalServerError(w, err)
+			return
+		}
+
+	default:
+		http.Error(w, "Method Not Allowed", http.StatusMethodNotAllowed)
+	}
+}