initial commit

1 files changed, 53 insertions, 0 deletions

diff --git a/pages/get.go b/pages/get.go
new file mode 100644
index 0000000..7f7df2f
--- /dev/null
+++ b/pages/get.go
@@ -0,0 +1,53 @@
+package pages
+
+import (
+	"delayed.link/storage"
+	_ "embed"
+	"errors"
+	"fmt"
+	"github.com/google/uuid"
+	"net/http"
+	"time"
+)
+
+func Get(w http.ResponseWriter, r *http.Request) {
+	id := r.PathValue("id")
+	uid, err := uuid.Parse(id)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusBadRequest)
+		return
+	}
+	l, err := storage.Current.Load(uid)
+	if err != nil && errors.Is(err, storage.NotFoundError) {
+		// if not found error, return 404
+		http.Error(w, http.StatusText(http.StatusNotFound), http.StatusNotFound)
+		return
+	} else if err != nil {
+		// else return internal error
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	valid := l.Valid()
+	if errors.Is(valid, storage.NotFoundError) {
+		http.Error(w, http.StatusText(http.StatusNotFound), http.StatusNotFound)
+		return
+	}
+	if errors.Is(valid, storage.NoOpensError) {
+		http.Error(w, http.StatusText(http.StatusNotFound), http.StatusNotFound)
+		return
+	}
+	if errors.Is(valid, storage.NotYetOpenError) {
+		http.Error(w, http.StatusText(http.StatusLocked), http.StatusLocked)
+		msg := fmt.Sprintf("\n\nThis link will be usable in %v minutes.", int(l.OpensFrom.Sub(time.Now()).Minutes()))
+		w.Write([]byte(msg))
+		return
+	}
+
+	err = l.Use()
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+	}
+
+	http.Redirect(w, r, l.Target, http.StatusFound)
+}