Refactor: split loop/throws helpers; drop deprecated JSON accessors

web/src/main/kotlin/ru/ysu/lms/web/admin/AdminController.kt

@@ -20,6 +20,7 @@ import ru.ysu.lms.web.api.CreateStudentRequestDto
 import ru.ysu.lms.web.api.DistributeRequestPayload
 import ru.ysu.lms.web.api.GradeSetPayload
 import ru.ysu.lms.web.api.LabCreatePayload
+import ru.ysu.lms.web.api.LabSummaryDto
 import ru.ysu.lms.web.api.LabUpdatePayload
 import ru.ysu.lms.web.api.LevelAssignPayload
 import ru.ysu.lms.web.api.LevelPayload
@@ -479,29 +480,13 @@ class AdminController(
             var count = 0
             var skipped = 0
             for ((idx, rawCols) in rows.withIndex()) {
-                val cells = rawCols.map { it.trim() }
-                if (cells.all { it.isBlank() }) continue
-                if (idx == 0 && looksLikeHeader(cells)) continue
-                var sid: String? = null
-                var lid: String? = labId?.takeIf { it.isNotBlank() }
-                var md: String? = null
-                when {
-                    cells.size >= 3 -> {
-                        sid = studentByNo[cells[0]]
-                        lid = labByNumber[cells[1]]?.id ?: lid
-                        md = cells.drop(2).joinToString("; ")
-                    }
-                    cells.size == 2 -> {
-                        sid = studentByNo[cells[0]]
-                        md = cells[1]
-                    }
-                }
-                if (sid == null || lid.isNullOrBlank() || md.isNullOrBlank()) {
+                val row = resolveDefenseRow(rawCols, idx, labId, studentByNo, labByNumber)
+                if (row == null) {
                     skipped++
-                    continue
+                } else {
+                    api.assignDefense(t, row.studentId, row.labId, row.assignmentMd.replace("\\n", "\n"))
+                    count++
                 }
-                api.assignDefense(t, sid, lid, md.replace("\\n", "\n"))
-                count++
             }
             val tail = if (skipped > 0) ", пропущено: $skipped" else ""
             redirect.addFlashAttribute("notice", "Импортировано заданий: $count$tail")
@@ -511,6 +496,41 @@ class AdminController(
             redirectToGroup(groupId, labId)
         }
 
+    private data class DefenseRow(
+        val studentId: String,
+        val labId: String,
+        val assignmentMd: String,
+    )
+
+    /** Разбирает строку CSV с заданием на защиту; null — строку нужно пропустить. */
+    private fun resolveDefenseRow(
+        rawCols: List<String>,
+        index: Int,
+        defaultLabId: String?,
+        studentByNo: Map<String, String>,
+        labByNumber: Map<String, LabSummaryDto>,
+    ): DefenseRow? {
+        val cells = rawCols.map { it.trim() }
+        if (cells.all { it.isBlank() }) return null
+        if (index == 0 && looksLikeHeader(cells)) return null
+        var sid: String? = null
+        var lid: String? = defaultLabId?.takeIf { it.isNotBlank() }
+        var md: String? = null
+        when {
+            cells.size >= 3 -> {
+                sid = studentByNo[cells[0]]
+                lid = labByNumber[cells[1]]?.id ?: lid
+                md = cells.drop(2).joinToString("; ")
+            }
+            cells.size == 2 -> {
+                sid = studentByNo[cells[0]]
+                md = cells[1]
+            }
+        }
+        if (sid == null || lid.isNullOrBlank() || md.isNullOrBlank()) return null
+        return DefenseRow(sid, lid, md)
+    }
+
     private fun looksLikeHeader(cells: List<String>): Boolean {
         val joined = cells.joinToString(" ").lowercase()
         return joined.contains("студент") ||
@@ -1250,11 +1270,11 @@ class AdminController(
             val node = mapper.readTree(json)
             buildList {
                 node.forEach { el ->
-                    val text = el.path("text").asText("").trim()
+                    val text = el.path("text").asString("").trim()
                     if (text.isNotEmpty()) {
                         add(
                             ru.ysu.lms.web.api
-                                .CommentPayload(text, el.path("tone").asText("neutral")),
+                                .CommentPayload(text, el.path("tone").asString("neutral")),
                         )
                     }
                 }