fix a bug

android/oral-trainer-sdk/src/main/java/cn/learningpad/oraltrainer/sdk/OralTrainerController.kt

@@ -258,9 +258,14 @@ class OralTrainerController internal constructor(
 
     fun playCurrentSentenceAndStop() {
         val sentence = currentSentence() ?: return
-        player.seekTo(sentence.startMs)
+        playSentenceAndStop(sentence.startMs, sentence.index)
+    }
+
+    /** Seek to a known sentence and stop automatically when that sentence ends. */
+    fun playSentenceAndStop(startMs: Long, sentenceIndex: Int) {
         stopAtSentenceEnd = true
-        stopAtSentenceEndIndex = sentence.index
+        stopAtSentenceEndIndex = sentenceIndex
+        player.seekTo(max(0L, startMs))
         player.play()
         refreshSentenceBoundaryGuard()
     }

android/oral-trainer-sdk/src/main/java/cn/learningpad/oraltrainer/sdk/UserApi.kt

@@ -67,6 +67,21 @@ data class UserDubShare(
     val createdAt: String,
 )
 
+data class DubShareSegmentDetail(
+    val index: Int,
+    val overallScore: Float,
+    val recognizedText: String,
+    val scoreDetails: Map<String, Float>,
+    val audioUrl: String,
+)
+
+data class DubShareDetail(
+    val shareId: String,
+    val videoHash: String,
+    val title: String,
+    val segments: List<DubShareSegmentDetail>,
+)
+
 class UserApiException(
     val statusCode: Int,
     responseBody: String,
@@ -150,6 +165,13 @@ class UserApi internal constructor(
         onComplete: (Result<List<UserDubShare>>) -> Unit,
     ): CancellableRequest = submitObject(onComplete, token) { parseDubShares(getBlocking(it, "api/v1/me/dub-shares")) }
 
+    fun dubShareDetail(
+        shareId: String,
+        onComplete: (Result<DubShareDetail>) -> Unit,
+    ): CancellableRequest = submit(onComplete) {
+        parseDubShareDetail(JSONObject(request("api/v1/dub-shares/$shareId", method = "GET")))
+    }
+
     fun release() {
         executor.shutdownNow()
     }
@@ -252,6 +274,34 @@ class UserApi internal constructor(
         )
     }
 
+    private fun parseDubShareDetail(root: JSONObject): DubShareDetail {
+        val segmentsJson = root.optJSONArray("segments") ?: JSONArray()
+        val segments = List(segmentsJson.length()) { index ->
+            val item = segmentsJson.getJSONObject(index)
+            val detailsJson = item.optJSONObject("score_details") ?: JSONObject()
+            val scoreDetails = buildMap<String, Float> {
+                for (key in detailsJson.keys()) {
+                    if (!detailsJson.isNull(key)) {
+                        put(key, detailsJson.optDouble(key).toFloat())
+                    }
+                }
+            }
+            DubShareSegmentDetail(
+                index = item.getInt("index"),
+                overallScore = item.optDouble("overall_score", 0.0).toFloat(),
+                recognizedText = item.optString("recognized_text"),
+                scoreDetails = scoreDetails,
+                audioUrl = item.getString("audio_url"),
+            )
+        }
+        return DubShareDetail(
+            shareId = root.getString("share_id"),
+            videoHash = root.getString("video_hash"),
+            title = root.optString("title"),
+            segments = segments,
+        )
+    }
+
     private fun request(
         path: String,
         token: String? = null,