feat(impression): serialize entity state

Partner-Core/src/main/java/work/slhaf/partner/core/cognition/impression/Entity.kt

@@ -3,6 +3,7 @@ package work.slhaf.partner.core.cognition.impression
 import com.alibaba.fastjson2.JSONObject
 import work.slhaf.partner.framework.agent.state.State
 import work.slhaf.partner.framework.agent.state.StateSerializable
+import work.slhaf.partner.framework.agent.state.StateValue
 import java.nio.file.Path
 import java.util.*
 import java.util.concurrent.ConcurrentHashMap
@@ -122,15 +123,83 @@ class Entity @JvmOverloads constructor(
     override fun statePath(): Path = Path.of("core", "impression", "entity-$uuid.json")
 
     override fun load(state: JSONObject) {
-        TODO("Not yet implemented")
+        state.getJSONObject("relations")?.let { loadedRelations ->
+            relationLock.withLock {
+                relations.clear()
+                loadedRelations.forEach { (target, relationValue) ->
+                    val relationObject = relationValue as? JSONObject ?: return@forEach
+                    val relationMap = mutableMapOf<String, Double>()
+                    relationObject.forEach { (relation, strengthValue) ->
+                        numberValue(strengthValue)?.let { relationMap[relation] = it }
+                    }
+                    if (relationMap.isNotEmpty()) {
+                        relations[target] = relationMap
+                    }
+                }
+            }
+        }
+
+        state.getJSONObject("impressions")?.let { loadedImpressions ->
+            impressionLock.withLock {
+                impressions.clear()
+                impressions.putAll(loadIndexableDataMap(loadedImpressions))
+            }
+        }
+
+        state.getJSONObject("features")?.let { loadedFeatures ->
+            featureLock.withLock {
+                features.clear()
+                features.putAll(loadIndexableDataMap(loadedFeatures))
+            }
+        }
     }
 
     override fun convert(): State {
-        TODO("Not yet implemented")
+        val state = State()
+        state.append("uuid", StateValue.str(uuid))
+        state.append("subject", StateValue.str(subject))
+
+        val relationState = relationLock.withLock {
+            relations.mapValues { (_, relationMap) -> relationMap.toMap() }
+        }
+        state.append("relations", StateValue.obj(relationState))
+
+        val impressionState = impressionLock.withLock {
+            indexableDataState(impressions)
+        }
+        state.append("impressions", StateValue.obj(impressionState))
+
+        val featureState = featureLock.withLock {
+            indexableDataState(features)
+        }
+        state.append("features", StateValue.obj(featureState))
+
+        return state
     }
 
     override fun autoLoadOnRegister(): Boolean = false
 
+    private fun loadIndexableDataMap(state: JSONObject): Map<String, IndexableData> {
+        val loaded = mutableMapOf<String, IndexableData>()
+        state.forEach { (key, value) ->
+            val confidence = when (value) {
+                is JSONObject -> value.getDouble("confidence")?.toDouble() ?: 1.0
+                else -> numberValue(value) ?: return@forEach
+            }
+            loaded[key] = IndexableData(confidence)
+        }
+        return loaded
+    }
+
+    private fun indexableDataState(source: Map<String, IndexableData>): Map<String, Map<String, Double>> =
+        source.mapValues { (_, data) -> mapOf("confidence" to data.confidence) }
+
+    private fun numberValue(value: Any?): Double? = when (value) {
+        is Number -> value.toDouble()
+        is String -> value.toDoubleOrNull()
+        else -> null
+    }
+
     data class IndexableData(
         var confidence: Double
     ) {