Refine NPC interactions and runtime item generation

src/hooks/story/npcInteraction.ts

@@ -17,12 +17,16 @@ import {
 } from '../../data/economy';
 import {
   addInventoryItems,
+  buildNpcGiftCommitActionText,
   buildNpcGiftResultText,
   buildNpcRecruitResultText,
+  buildNpcTradeTransactionActionText,
   buildNpcTradeTransactionResultText,
   getGiftCandidates,
+  getPreferredGiftItemId,
   markNpcFirstMeaningfulContactResolved,
   removeInventoryItem,
+  syncNpcTradeInventory,
 } from '../../data/npcInteractions';
 import { streamNpcRecruitDialogue } from '../../services/ai';
 import type { StoryGenerationContext } from '../../services/aiTypes';
@@ -326,7 +330,7 @@ export function useStoryNpcInteractionFlow({
       })
       .catch(error => {
         console.error('Failed to continue recruit story:', error);
-        runtime.setAiError(error instanceof Error ? error.message : '未知 AI 错误');
+        runtime.setAiError(error instanceof Error ? error.message : '未知智能生成错误');
         runtime.setCurrentStory(
           runtime.buildFallbackStoryForState(stateWithHistory, gameState.playerCharacter!, recruitResultText),
         );
@@ -412,7 +416,7 @@ export function useStoryNpcInteractionFlow({
       await typewriterPromise;
       console.error('Failed to stream recruit dialogue:', error);
       dialogueText = displayedText || buildOfflineRecruitDialogue(encounter, releasedCompanionName);
-      runtime.setAiError(error instanceof Error ? error.message : '未知 AI 错误');
+      runtime.setAiError(error instanceof Error ? error.message : '未知智能生成错误');
     }
 
     const finalDialogueText = normalizeRecruitDialogue(
@@ -426,7 +430,20 @@ export function useStoryNpcInteractionFlow({
   };
 
   const openTradeModal = (encounter: Encounter, actionText: string) => {
-    const npcState = getResolvedNpcState(gameState, encounter);
+    const currentNpcState = getResolvedNpcState(gameState, encounter);
+    const npcState = syncNpcTradeInventory(
+      gameState,
+      encounter,
+      currentNpcState,
+    );
+
+    if (
+      gameState.npcStates[getNpcEncounterKey(encounter)] !== npcState
+      || npcState !== currentNpcState
+    ) {
+      setGameState(updateNpcState(gameState, encounter, () => npcState));
+    }
+
     setTradeModal({
       encounter,
       actionText,
@@ -438,10 +455,20 @@ export function useStoryNpcInteractionFlow({
   };
 
   const openGiftModal = (encounter: Encounter, actionText: string) => {
+    const selectedItemId = getPreferredGiftItemId(
+      gameState.playerInventory,
+      encounter,
+      {
+        worldType: gameState.worldType,
+        customWorldProfile: gameState.customWorldProfile,
+      },
+    );
+    if (!selectedItemId) return;
+
     setGiftModal({
       encounter,
       actionText,
-      selectedItemId: gameState.playerInventory[0]?.id ?? null,
+      selectedItemId,
     });
   };
 
@@ -494,7 +521,12 @@ export function useStoryNpcInteractionFlow({
       void commitGeneratedState(
         nextState,
         gameState.playerCharacter,
-        tradeModal.actionText,
+        buildNpcTradeTransactionActionText({
+          encounter,
+          mode: 'buy',
+          item: npcItem,
+          quantity,
+        }),
         buildNpcTradeTransactionResultText({
           encounter,
           mode: 'buy',
@@ -534,7 +566,12 @@ export function useStoryNpcInteractionFlow({
     void commitGeneratedState(
       nextState,
       gameState.playerCharacter,
-      tradeModal.actionText,
+      buildNpcTradeTransactionActionText({
+        encounter,
+        mode: 'sell',
+        item: playerItem,
+        quantity,
+      }),
       buildNpcTradeTransactionResultText({
         encounter,
         mode: 'sell',
@@ -590,7 +627,7 @@ export function useStoryNpcInteractionFlow({
     void commitGeneratedState(
       nextState,
       gameState.playerCharacter,
-      giftModal.actionText,
+      buildNpcGiftCommitActionText(encounter, giftItem),
       buildNpcGiftResultText(encounter, giftItem, affinityGain, nextAffinity, attributeSummary ?? undefined),
       'npc_gift',
     );