From fe5c23af3c46d6a6168d9b77bd703065aa65cbc5 Mon Sep 17 00:00:00 2001
From: cai <cai@nbcai.cc>
Date: Sat, 22 Aug 2026 10:32:18 +0800
Subject: [PATCH] feat(asr): propagate participant language per session

---
 src/main.rs |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/src/main.rs b/src/main.rs
index b92ad4b..0e179f5 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -5040,6 +5040,7 @@
                 "clientFixtureSequence".to_string(),
                 "fixture-01".to_string(),
             ),
+            ("language".to_string(), "ja-JP".to_string()),
         ]);
         let mut starts = Vec::new();
         for (session_index, sequence) in [(1, "fixture-01"), (2, "fixture-02")] {
@@ -5065,6 +5066,7 @@
             let is_in_speech = vad.in_speech;
             assert!(!was_in_speech && is_in_speech);
             attributes.insert("clientFixtureSequence".to_string(), sequence.to_string());
+            attributes.insert("language".to_string(), "ja-JP".to_string());
             let metadata = AudioIngressMetadata::from_participant(&attributes)
                 .expect("valid participant attributes")
                 .expect("controlled fixture metadata");
@@ -5079,6 +5081,7 @@
             let session_json: serde_json::Value =
                 serde_json::from_slice(&session_line).expect("session start json");
             assert_eq!(sequence, session_json["clientFixtureSequence"]);
+            assert_eq!("ja-JP", session_json["language"]);
             starts.push(metadata.client_fixture_sequence);
             vad.reset_current_turn();
         }
@@ -5171,6 +5174,7 @@
                 "clientFixtureSequence".to_string(),
                 "fixture-01".to_string(),
             ),
+            ("language".to_string(), "ja-JP".to_string()),
         ]);
         let mut upload = None;
         let mut last_fixture_sequence = None;
@@ -5207,6 +5211,7 @@
             "clientFixtureSequence".to_string(),
             "fixture-02".to_string(),
         );
+        attrs.insert("language".to_string(), "zh-CN".to_string());
         let (was, is, turn) = observe_bound_participant_frame(
             "participant-user",
             Some("participant-user"),
@@ -5237,6 +5242,8 @@
             .expect("second session request");
         assert!(first_request.contains("\"clientFixtureSequence\":\"fixture-01\""));
         assert!(second_request.contains("\"clientFixtureSequence\":\"fixture-02\""));
+        assert!(first_request.contains("\"language\":\"ja-JP\""));
+        assert!(second_request.contains("\"language\":\"zh-CN\""));
         assert!(
             first_request.contains("\"audioIngressOriginStatus\":\"controlled_fixture_bound\"")
         );

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