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81 lines
2.5 KiB
81 lines
2.5 KiB
import { configType } from "../config.ts";
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import { Channel } from "../database.ts"
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class HuggingFaceAI {
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name: string;
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description: string;
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prefix: string;
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memory: string[];
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tokens: string[];
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tokenNum: number;
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memoryLen: number;
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parameters: {
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max_new_tokens: number;
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temperature: number;
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repetition_penalty: number;
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top_k: number;
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return_full_text: boolean;
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};
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model: string;
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constructor(name: string, description: string, config: configType, db: Channel) {
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this.name = name;
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this.description = description;
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this.prefix = `The following is a chat with ${this.name}, ${this.description}.\n`;
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this.tokens = config.huggingface.tokens;
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this.tokenNum = 0;
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this.memoryLen = config.huggingface.memoryLen;
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this.parameters = {
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"max_new_tokens": 50,
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"temperature": 0.8,
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"repetition_penalty": 1.8,
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"top_k": 40,
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"return_full_text": false,
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};
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this.model = config.huggingface.model;
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this.memory = db.history ? db.history.map((m) => `${m.name}: "${m.content}"`) : [];
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}
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async #query(prompt: string) {
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const res = await fetch(`https://api-inference.huggingface.co/models/${this.model}`, {
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body: JSON.stringify({
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inputs: prompt,
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parameters: this.parameters,
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}),
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headers: {
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Authorization: `Bearer ${this.tokens[this.tokenNum]}`,
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},
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method: "POST",
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});
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return await res.json();
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}
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reset() {
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this.prefix = `The following is a chat with ${this.name}, ${this.description}.\n`;
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this.memory = [];
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}
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changeShit(opts: {
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name?: string;
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description?: string;
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}) {
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this.name = opts.name ?? this.name;
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this.description = opts.description ?? this.description;
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this.reset();
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}
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async complete(username: string, message: string) {
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console.log(`${username}: "${message}"`);
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const ctx = this.memory.slice(this.memoryLen * -2);
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const prompt = `${this.prefix}\n${ctx.join("\n")}\n${username}: "${message}"\n${this.name}: "`;
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const res = await this.#query(prompt);
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const botMsg = res[0].generated_text.split('"\n')[0];
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this.memory.push(`${username}: "${message}"`);
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this.memory.push(`${this.name}: "${botMsg}"`);
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console.log(`${this.name}: "${botMsg}"`);
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return botMsg;
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}
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}
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export default HuggingFaceAI;
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