rag-ultimate

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.MemoryService = void 0;
const STOPWORDS = new Set([
    "about", "after", "again", "also", "another", "answer", "because", "before",
    "between", "could", "detail", "details", "discuss", "explain", "from", "have",
    "how", "into", "more", "other", "please", "question", "should", "show", "some",
    "that", "their", "there", "these", "this", "those", "what", "when", "where",
    "which", "with", "would", "your",
]);
class MemoryService {
    static memory = new Map();
    static topicCache = new Map();
    static save(topic, summary) {
        const cleanedTopic = this.normalizeTopic(topic);
        if (!cleanedTopic)
            return;
        const existing = this.memory.get(cleanedTopic) ?? [];
        existing.push({ topic: cleanedTopic, summary, timestamp: Date.now() });
        this.memory.set(cleanedTopic, existing.length > 20 ? existing.slice(-20) : existing);
    }
    static retrieve(topic) {
        const cleanedTopic = this.normalizeTopic(topic);
        const entries = this.memory.get(cleanedTopic);
        if (!entries?.length)
            return "";
        return entries
            .slice(-5)
            .map(entry => `- ${entry.summary}`)
            .join("\n");
    }
    static extractTopic(prompt) {
        const cached = this.topicCache.get(prompt);
        if (cached !== undefined)
            return cached;
        const words = prompt.toLowerCase().split(/\W+/).filter(w => w.length > 3 && !STOPWORDS.has(w));
        const topic = words.slice(0, 6).join(" ");
        this.topicCache.set(prompt, topic);
        if (this.topicCache.size > 256) {
            const first = this.topicCache.keys().next().value;
            if (first)
                this.topicCache.delete(first);
        }
        return topic;
    }
    static normalizeTopic(topic) {
        return topic.toLowerCase().replace(/\s+/g, " ").trim().slice(0, 80);
    }
}
exports.MemoryService = MemoryService;