Add Reset in for rate limits (#4111)

- Parse the headers
- Reorganize the struct because it's getting too long
- show the resets at in the tui

<img width="324" height="79" alt="image"
src="https://github.com/user-attachments/assets/ca15cd48-f112-4556-91ab-1e3a9bc4683d"
/>

codex-rs/core/src/client.rs

@@ -43,6 +43,7 @@ use crate::model_provider_info::WireApi;
 use crate::openai_model_info::get_model_info;
 use crate::openai_tools::create_tools_json_for_responses_api;
 use crate::protocol::RateLimitSnapshot;
+use crate::protocol::RateLimitWindow;
 use crate::protocol::TokenUsage;
 use crate::token_data::PlanType;
 use crate::util::backoff;
@@ -488,19 +489,39 @@ fn attach_item_ids(payload_json: &mut Value, original_items: &[ResponseItem]) {
 }
 
 fn parse_rate_limit_snapshot(headers: &HeaderMap) -> Option<RateLimitSnapshot> {
-    let primary_used_percent = parse_header_f64(headers, "x-codex-primary-used-percent")?;
-    let secondary_used_percent = parse_header_f64(headers, "x-codex-secondary-used-percent")?;
-    let primary_to_secondary_ratio_percent =
-        parse_header_f64(headers, "x-codex-primary-over-secondary-limit-percent")?;
-    let primary_window_minutes = parse_header_u64(headers, "x-codex-primary-window-minutes")?;
-    let secondary_window_minutes = parse_header_u64(headers, "x-codex-secondary-window-minutes")?;
+    let primary = parse_rate_limit_window(
+        headers,
+        "x-codex-primary-used-percent",
+        "x-codex-primary-window-minutes",
+        "x-codex-primary-reset-after-seconds",
+    );
 
-    Some(RateLimitSnapshot {
-        primary_used_percent,
-        secondary_used_percent,
-        primary_to_secondary_ratio_percent,
-        primary_window_minutes,
-        secondary_window_minutes,
+    let secondary = parse_rate_limit_window(
+        headers,
+        "x-codex-secondary-used-percent",
+        "x-codex-secondary-window-minutes",
+        "x-codex-secondary-reset-after-seconds",
+    );
+
+    if primary.is_none() && secondary.is_none() {
+        return None;
+    }
+
+    Some(RateLimitSnapshot { primary, secondary })
+}
+
+fn parse_rate_limit_window(
+    headers: &HeaderMap,
+    used_percent_header: &str,
+    window_minutes_header: &str,
+    resets_header: &str,
+) -> Option<RateLimitWindow> {
+    let used_percent = parse_header_f64(headers, used_percent_header)?;
+
+    Some(RateLimitWindow {
+        used_percent,
+        window_minutes: parse_header_u64(headers, window_minutes_header),
+        resets_in_seconds: parse_header_u64(headers, resets_header),
     })
 }
 

codex-rs/core/src/error.rs

@@ -267,14 +267,20 @@ pub fn get_error_message_ui(e: &CodexErr) -> String {
 #[cfg(test)]
 mod tests {
     use super::*;
+    use codex_protocol::protocol::RateLimitWindow;
 
     fn rate_limit_snapshot() -> RateLimitSnapshot {
         RateLimitSnapshot {
-            primary_used_percent: 0.5,
-            secondary_used_percent: 0.3,
-            primary_to_secondary_ratio_percent: 0.7,
-            primary_window_minutes: 60,
-            secondary_window_minutes: 120,
+            primary: Some(RateLimitWindow {
+                used_percent: 50.0,
+                window_minutes: Some(60),
+                resets_in_seconds: Some(3600),
+            }),
+            secondary: Some(RateLimitWindow {
+                used_percent: 30.0,
+                window_minutes: Some(120),
+                resets_in_seconds: Some(7200),
+            }),
         }
     }