conversation: deduplicate profile context

src/main/kotlin/profile/UserProfileContextRenderer.kt

@@ -11,6 +11,30 @@ object UserProfileContextRenderer {
         summaryMaxChars: Int,
         sectionTitle: String = "你对相关群友的认识",
     ): String {
+        val entries = renderEntries(
+            profiles = profiles,
+            favorabilityByUserId = favorabilityByUserId,
+            displayNames = displayNames,
+            activeUserIds = activeUserIds,
+            summaryMaxChars = summaryMaxChars,
+        )
+        if (entries.isEmpty()) return ""
+
+        return buildString {
+            append("## ").appendLine(sectionTitle)
+            appendLine(CONTEXT_GUIDANCE)
+            entries.values.forEach(::append)
+            appendLine()
+        }
+    }
+
+    internal fun renderEntries(
+        profiles: List<UserProfileSnapshot>,
+        favorabilityByUserId: Map<Long, FavorabilityInfo>,
+        displayNames: Map<Long, String>,
+        activeUserIds: Set<Long>,
+        summaryMaxChars: Int,
+    ): Map<Long, String> {
         val profilesByUserId = profiles
             .filter { profile ->
                 profile.reliable &&
@@ -20,50 +44,53 @@ object UserProfileContextRenderer {
         val userIds = activeUserIds.filter { userId ->
             userId in profilesByUserId || favorabilityByUserId[userId]?.hasVisibleContext() == true
         }
-        if (userIds.isEmpty()) return ""
+        if (userIds.isEmpty()) return emptyMap()
 
         val maxChars = summaryMaxChars.coerceAtLeast(50)
-        return buildString {
-            append("## ").appendLine(sectionTitle)
-            appendLine("好感度、代号和主观印象代表你的关系状态；画像认识来自可修正的历史归纳。仅在当前话题相关时自然运用，不要逐条复述或提及信息来源。")
+        return buildMap {
             userIds.forEach { userId ->
                 val profile = profilesByUserId[userId]
                 val favorability = favorabilityByUserId[userId]
                 val name = favorability?.name.orEmpty().ifBlank {
                     displayNames[userId].orEmpty().ifBlank { userId.toString() }
                 }
-                append("- ").append(name).append('(').append(userId).append(')')
-                favorability?.takeIf { it.hasVisibleContext() }?.let { info ->
-                    append(" | 好感度").append(if (info.value >= 0) "+" else "").append(info.value)
-                    if (info.tags.isNotEmpty()) append(" | 标签：").append(info.tags.joinToString("、"))
-                    if (info.impression.isNotBlank()) append(" | 主观印象：").append(info.impression.normalized())
-                }
-                profile?.summary?.let(ProfilePersistentText::summaryForDisplay)
-                    ?.takeIf(String::isNotBlank)?.let { summary ->
-                    append(" | 画像认识")
-                    append("（").append(profile.items.size).append("条）：")
-                        .append(summary.normalized().take(maxChars))
-                } ?: profile?.takeIf { it.items.isNotEmpty() }?.let {
-                    append(" | 画像认识：已有").append(it.items.size).append("条记录，可用 queryUserProfile 查询详情")
-                }
+                put(userId, buildString {
+                    append("- ").append(name).append('(').append(userId).append(')')
+                    favorability?.takeIf { it.hasVisibleContext() }?.let { info ->
+                        append(" | 好感度").append(if (info.value >= 0) "+" else "").append(info.value)
+                        if (info.tags.isNotEmpty()) append(" | 标签：").append(info.tags.joinToString("、"))
+                        if (info.impression.isNotBlank()) append(" | 主观印象：").append(info.impression.normalized())
+                    }
+                    profile?.summary?.let(ProfilePersistentText::summaryForDisplay)
+                        ?.takeIf(String::isNotBlank)?.let { summary ->
+                        append(" | 画像认识")
+                        append("（").append(profile.items.size).append("条）：")
+                            .append(summary.normalized().take(maxChars))
+                    } ?: profile?.takeIf { it.items.isNotEmpty() }?.let {
+                        append(" | 画像认识：已有").append(it.items.size)
+                            .append("条记录，可用 queryUserProfile 查询详情")
+                    }
 
-                profile?.items?.asSequence()
-                    ?.filter { item ->
-                        item.category == ProfileCategory.RELATIONSHIP_NOTE &&
-                                item.relatedUserId != null && item.relatedUserId in activeUserIds
-                    }
-                    ?.take(2)
-                    ?.forEach { item ->
-                        val relatedId = checkNotNull(item.relatedUserId)
-                        val relatedName = favorabilityByUserId[relatedId]?.name.orEmpty().ifBlank {
-                            displayNames[relatedId].orEmpty().ifBlank { relatedId.toString() }
+                    profile?.items?.asSequence()
+                        ?.filter { item ->
+                            item.category == ProfileCategory.RELATIONSHIP_NOTE &&
+                                    item.relatedUserId != null && item.relatedUserId in activeUserIds
                         }
-                        append("；与").append(relatedName).append("：")
-                            .append(ProfilePersistentText.itemForDisplay(item.content, relationship = true).normalized())
-                    }
-                appendLine()
+                        ?.take(2)
+                        ?.forEach { item ->
+                            val relatedId = checkNotNull(item.relatedUserId)
+                            val relatedName = favorabilityByUserId[relatedId]?.name.orEmpty().ifBlank {
+                                displayNames[relatedId].orEmpty().ifBlank { relatedId.toString() }
+                            }
+                            append("；与").append(relatedName).append("：")
+                                .append(
+                                    ProfilePersistentText.itemForDisplay(item.content, relationship = true)
+                                        .normalized()
+                                )
+                        }
+                    appendLine()
+                })
             }
-            appendLine()
         }
     }
 
@@ -71,4 +98,8 @@ object UserProfileContextRenderer {
         value != 0 || name.isNotBlank() || tags.isNotEmpty() || impression.isNotBlank()
 
     private fun String.normalized(): String = trim().replace(Regex("\\s+"), " ")
+
+    private const val CONTEXT_GUIDANCE =
+        "好感度、代号和主观印象代表你的关系状态；画像认识来自可修正的历史归纳。" +
+                "仅在当前话题相关时自然运用，不要逐条复述或提及信息来源。"
 }