aboutsummaryrefslogtreecommitdiff
path: root/pkg/ext/router.go
diff options
context:
space:
mode:
Diffstat (limited to 'pkg/ext/router.go')
-rw-r--r--pkg/ext/router.go72
1 files changed, 72 insertions, 0 deletions
diff --git a/pkg/ext/router.go b/pkg/ext/router.go
new file mode 100644
index 0000000..5d22814
--- /dev/null
+++ b/pkg/ext/router.go
@@ -0,0 +1,72 @@
+package ext
+
+import (
+ "errors"
+ "fmt"
+ "net/http"
+
+ "git.gabrielgio.me/cerrado/pkg/service"
+ "git.gabrielgio.me/cerrado/templates"
+)
+
+type (
+ Router struct {
+ middlewares []Middleware
+ router *http.ServeMux
+ }
+ Middleware func(next http.HandlerFunc) http.HandlerFunc
+ ErrorRequestHandler func(w http.ResponseWriter, r *http.Request) error
+)
+
+func NewRouter() *Router {
+ return &Router{
+ router: http.NewServeMux(),
+ }
+}
+func (r *Router) Handler() http.Handler {
+ return r.router
+}
+
+func (r *Router) AddMiddleware(middleware Middleware) {
+ r.middlewares = append(r.middlewares, middleware)
+}
+
+func wrapError(next ErrorRequestHandler) http.HandlerFunc {
+ return func(w http.ResponseWriter, r *http.Request) {
+ if err := next(w, r); err != nil {
+ if errors.Is(err, service.RepositoryNotFoundErr) {
+ NotFound(w)
+ } else {
+ InternalServerError(w, err)
+ }
+ }
+ }
+}
+
+func (r *Router) run(next ErrorRequestHandler) http.HandlerFunc {
+ return func(w http.ResponseWriter, re *http.Request) {
+ req := wrapError(next)
+ for _, r := range r.middlewares {
+ req = r(req)
+ }
+ req(w, re)
+ }
+}
+
+func (r *Router) HandleFunc(path string, handler ErrorRequestHandler) {
+ r.router.HandleFunc(path, r.run(handler))
+}
+
+func NotFound(w http.ResponseWriter) {
+ w.WriteHeader(http.StatusNotFound)
+ templates.WritePageTemplate(w, &templates.ErrorPage{
+ Message: "Not Found",
+ })
+}
+
+func InternalServerError(w http.ResponseWriter, err error) {
+ w.WriteHeader(http.StatusInternalServerError)
+ templates.WritePageTemplate(w, &templates.ErrorPage{
+ Message: fmt.Sprintf("Internal Server Error:\n%s", err.Error()),
+ })
+}