1

src/hooks/story/npcEncounterActions.ts

@@ -6,7 +6,6 @@ import { NPC_PREVIEW_TALK_FUNCTION } from '../../data/functionCatalog';
 import {
   addInventoryItems,
   applyStoryChoiceToStanceProfile,
-  buildNpcChatResultText,
   buildNpcHelpCommitActionText,
   buildNpcHelpResultText,
   buildNpcHelpReward,
@@ -15,7 +14,6 @@ import {
   createNpcBattleMonster,
   describeNpcAffinityInWords,
   generateNpcHelpReward,
-  getChatAffinityOutcome,
   getNpcLootItems,
   getNpcSparMaxHp,
   markNpcFirstMeaningfulContactResolved,
@@ -609,6 +607,60 @@ export function createStoryNpcEncounterActions({
     ];
   };
 
+  const isNpcChatOptionForEncounter = (
+    option: StoryOption,
+    encounter: Encounter,
+  ) => {
+    if (option.functionId !== 'npc_chat') {
+      return false;
+    }
+
+    if (option.interaction?.kind !== 'npc') {
+      return true;
+    }
+
+    return (
+      option.interaction.action === 'chat' &&
+      option.interaction.npcId === (encounter.id ?? encounter.npcName)
+    );
+  };
+
+  const buildNpcChatEntryOptions = (
+    encounter: Encounter,
+    selectedOption: StoryOption,
+  ) => {
+    const candidateOptions = [
+      selectedOption,
+      ...(currentStory?.options ?? []).filter((option) =>
+        isNpcChatOptionForEncounter(option, encounter),
+      ),
+    ];
+    const dedupedOptions: StoryOption[] = [];
+    const seenActionTexts = new Set<string>();
+
+    for (const option of candidateOptions) {
+      const actionText = option.actionText?.trim();
+      if (!actionText || seenActionTexts.has(actionText)) {
+        continue;
+      }
+      seenActionTexts.add(actionText);
+      dedupedOptions.push(option);
+      if (dedupedOptions.length === 3) {
+        return dedupedOptions;
+      }
+    }
+
+    const fallbackSuggestions = buildFallbackNpcChatSuggestions(
+      currentStory?.text?.trim() || selectedOption.actionText,
+    );
+    const mergedSuggestions = [
+      ...dedupedOptions.map((option) => option.actionText),
+      ...fallbackSuggestions.filter((suggestion) => !seenActionTexts.has(suggestion)),
+    ].slice(0, 3);
+
+    return buildNpcChatTurnOptions(encounter, mergedSuggestions);
+  };
+
   const buildNpcChatStoryMoment = (params: {
     encounter: Encounter;
     dialogue: NonNullable<StoryMoment['dialogue']>;
@@ -629,6 +681,37 @@ export function createStoryNpcEncounterActions({
     },
   });
 
+  const enterNpcChat = (
+    encounter: Encounter,
+    selectedOption: StoryOption,
+  ) => {
+    const openingDialogue =
+      currentStory?.npcChatState?.npcId === (encounter.id ?? encounter.npcName) &&
+      currentStory.dialogue
+        ? [...currentStory.dialogue]
+        : currentStory?.dialogue && currentStory.dialogue.length > 0
+          ? [...currentStory.dialogue]
+          : [
+              {
+                speaker: 'npc' as const,
+                speakerName: encounter.npcName,
+                text: `${encounter.npcName}看着你，像是在等你把话接下去。`,
+              },
+            ];
+
+    setAiError(null);
+    setCurrentStory(
+      buildNpcChatStoryMoment({
+        encounter,
+        dialogue: openingDialogue,
+        options: buildNpcChatEntryOptions(encounter, selectedOption),
+        streaming: false,
+        turnCount: 0,
+      }),
+    );
+    return true;
+  };
+
   const handleNpcChatTurn = async (
     encounter: Encounter,
     playerMessage: string,
@@ -1071,8 +1154,14 @@ export function createStoryNpcEncounterActions({
         return true;
       }
       case 'chat': {
-        void handleNpcChatTurn(encounter, option.actionText);
-        return true;
+        if (
+          currentStory?.npcChatState?.npcId === (encounter.id ?? encounter.npcName)
+        ) {
+          void handleNpcChatTurn(encounter, option.actionText);
+          return true;
+        }
+
+        return enterNpcChat(encounter, option);
       }
       case 'quest_accept': {
         void resolveServerNpcStoryAction({