chore: friendly error tips (#90)

Author: wendajiang

src/err.rs

@@ -19,6 +19,7 @@ pub enum Error {
     DecryptError,
     SilentError,
     NoneError,
+    ChromeNotLogin,
 }
 
 impl std::fmt::Debug for Error {
@@ -57,7 +58,8 @@ impl std::fmt::Debug for Error {
             Error::NoneError => write!(f,
                 "json from response parse failed, please open a new issue at: {}.",
                 "https://github.com/clearloop/leetcode-cli/".underline(),
-            )
+            ),
+            Error::ChromeNotLogin => write!(f, "maybe you not login on the Chrome, you can login and retry.")
         }
     }
 }

src/plugins/chrome.rs

@@ -85,10 +85,10 @@ pub fn cookies() -> Result<Ident, crate::Error> {
     }
 
     Ok(Ident {
-        csrf: m.get("csrftoken").ok_or(Error::NoneError)?.to_string(),
+        csrf: m.get("csrftoken").ok_or(Error::ChromeNotLogin)?.to_string(),
         session: m
             .get("LEETCODE_SESSION")
-            .ok_or(Error::NoneError)?
+            .ok_or(Error::ChromeNotLogin)?
             .to_string(),
     })
 }