chore: Refactor cat.ts

Author: koki-develop

src/lib/cat.ts

@@ -1,99 +1,81 @@
 import type { Action } from "../components/types";
 import { FileEditor } from "./fileEditor";
 
-type CatVocabulary = {
-  [key: string]: string[];
-};
-
-type EmotionKeywords = {
-  [key: string]: string[];
-};
-
-type CatResponse = {
+export type CatResponse = {
   text: string;
   action?: Action;
 };
 
+const vocabulary = {
+  greeting: ["ﾆｬｯ", "ﾐｬｯ", "ﾆｬ"],
+  affection: ["ﾆｬｵ~ﾝ", "ﾐｬｵ~", "ﾆｬﾝﾆｬﾝ"],
+  satisfaction: ["ｺﾞﾛｺﾞﾛ", "ﾆｬ~"],
+  excitement: ["ﾆｬﾆｬﾆｬ!", "ﾐｬｰ!", "ﾆｬｯﾆｬｯ"],
+  playful: ["ﾆｬｰﾝ", "ﾐｬﾐｬ", "ﾆｬｵｯ"],
+  sleepy: ["ﾆｬ…", "ﾌﾆｬ~", "ﾆｬ~ﾝ"],
+  hungry: ["ﾆｬｵｫﾝ", "ﾐｬｰｵ", "ﾆｬﾝﾆｬﾝ!"],
+} as const;
+
+type Emotion = keyof typeof vocabulary;
+
+const emotionKeywords: Record<Emotion, string[]> = {
+  greeting: [
+    "こんにちは",
+    "おはよう",
+    "こんばんは",
+    "はじめまして",
+    "やあ",
+    "どうも",
+  ],
+  affection: ["好き", "愛", "かわいい", "可愛い", "撫でて", "なでて", "甘えて"],
+  satisfaction: [
+    "ありがとう",
+    "嬉しい",
+    "うれしい",
+    "よかった",
+    "素晴らしい",
+    "最高",
+  ],
+  excitement: [
+    "遊ぼう",
+    "あそぼう",
+    "楽しい",
+    "たのしい",
+    "わーい",
+    "やったー",
+    "すごい",
+  ],
+  playful: ["ゲーム", "おもちゃ", "ボール", "遊び", "じゃれる"],
+  sleepy: ["眠い", "ねむい", "疲れた", "つかれた", "おやすみ", "寝る"],
+  hungry: [
+    "お腹",
+    "おなか",
+    "食べ",
+    "ごはん",
+    "餌",
+    "えさ",
+    "フード",
+    "美味しい",
+  ],
+} as const;
+
 export class Cat {
   private fileEditor = new FileEditor();
 
-  private vocabulary: CatVocabulary = {
-    greeting: ["ﾆｬｯ", "ﾐｬｯ", "ﾆｬ"],
-    affection: ["ﾆｬｵ~ﾝ", "ﾐｬｵ~", "ﾆｬﾝﾆｬﾝ"],
-    satisfaction: ["ｺﾞﾛｺﾞﾛ", "ﾆｬ~"],
-    excitement: ["ﾆｬﾆｬﾆｬ!", "ﾐｬｰ!", "ﾆｬｯﾆｬｯ"],
-    playful: ["ﾆｬｰﾝ", "ﾐｬﾐｬ", "ﾆｬｵｯ"],
-    sleepy: ["ﾆｬ…", "ﾌﾆｬ~", "ﾆｬ~ﾝ"],
-    hungry: ["ﾆｬｵｫﾝ", "ﾐｬｰｵ", "ﾆｬﾝﾆｬﾝ!"],
-    default: ["ﾆｬｰ", "ﾆｬﾝ", "ﾐｬｰ"],
-  };
-
-  private emotionKeywords: EmotionKeywords = {
-    greeting: [
-      "こんにちは",
-      "おはよう",
-      "こんばんは",
-      "はじめまして",
-      "やあ",
-      "どうも",
-    ],
-    affection: [
-      "好き",
-      "愛",
-      "かわいい",
-      "可愛い",
-      "撫でて",
-      "なでて",
-      "甘えて",
-    ],
-    satisfaction: [
-      "ありがとう",
-      "嬉しい",
-      "うれしい",
-      "よかった",
-      "素晴らしい",
-      "最高",
-    ],
-    excitement: [
-      "遊ぼう",
-      "あそぼう",
-      "楽しい",
-      "たのしい",
-      "わーい",
-      "やったー",
-      "すごい",
-    ],
-    playful: ["ゲーム", "おもちゃ", "ボール", "遊び", "じゃれる"],
-    sleepy: ["眠い", "ねむい", "疲れた", "つかれた", "おやすみ", "寝る"],
-    hungry: [
-      "お腹",
-      "おなか",
-      "食べ",
-      "ごはん",
-      "餌",
-      "えさ",
-      "フード",
-      "美味しい",
-    ],
-  };
-
-  private detectEmotion(message: string): string {
+  private detectEmotion(message: string): Emotion | null {
     const lowerMessage = message.toLowerCase();
 
-    for (const [emotion, keywords] of Object.entries(this.emotionKeywords)) {
+    for (const [emotion, keywords] of Object.entries(emotionKeywords)) {
       if (keywords.some((keyword) => lowerMessage.includes(keyword))) {
-        return emotion;
+        return emotion as Emotion;
       }
     }
 
-    return "default";
+    return null;
   }
 
-  private getRandomResponse(emotion: string): string {
-    const responses = this.vocabulary[emotion] || this.vocabulary.default;
-    if (!responses || responses.length === 0) {
-      return "ﾆｬｰ";
-    }
+  private getRandomResponse(emotion: Emotion | null): string {
+    const responses = emotion ? vocabulary[emotion] : ["ﾆｬｰ", "ﾆｬﾝ", "ﾐｬｰ"];
     const index = Math.floor(Math.random() * responses.length);
     return responses[index] as string;
   }