const axios = require('axios');
const https = require('https');
const crypto = require('crypto');

class TypeEasy {
    constructor() {
        this.pid = '119';
        this.channel = 'admin';
        this.osType = '1';
        this.deviceType = '1';
        this.packageId = 'com.gpttype.aikeyboard';
    }
    
    generateNoncestr = function () {
        const chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
        let result = '';
        
        for (let i = 0; i < 32; i++) {
            result += chars.charAt(Math.floor(Math.random() * chars.length));
        }
        
        return result;
    };
    
    sign = function (uuid, params) {
        const secret = crypto.createHash('md5').update(uuid, 'utf8').digest('hex').substring(3, 8);
        const sorted = Object.keys(params).sort();
        let str = '';
        
        for (const key of sorted) {
            const val = params[key];
            if (val !== null && val !== undefined && val !== '') {
                str += key + '=' + val + '&';
            }
        }
        
        str = str.slice(0, -1);
        const signStr = 'keyValue=' + secret + '&' + str;
        
        return crypto.createHash('md5').update(signStr, 'utf8').digest('hex').toUpperCase();
    };
    
    chat = async function (prompt) {
        try {
            if (!prompt) throw new Error('Prompt is required.');
            
            const uuid = crypto.randomUUID();
            const timestamp = Math.floor(Date.now() / 1000);
            const noncestr = this.generateNoncestr();
            const osRelease = '10';
            const versionName = '1.1.5';
            
            const params = {
                channel: this.channel,
                content: prompt,
                device_type: this.deviceType,
                is_vip: '2',
                language_code: 'in',
                noncestr: noncestr,
                os_type: this.osType,
                pid: this.pid,
                sver: osRelease,
                timestamp: String(timestamp),
                uid: '',
                user_type: '1',
                uuid: uuid,
                version: versionName
            };
            
            params.sign = this.sign(uuid, params);
            const { data } = await axios.post('http://keyword.saetatech.com/api/chat/word', null, {
                params: params,
                headers: {
                    'connection': 'Keep-Alive',
                    'content-type': 'application/x-www-form-urlencoded',
                    'language-code': 'in',
                    'user-agent': 'okhttp/4.9.1'
                }
            });
            
            const result = data?.Content?.text;
            if (!result) throw new Error('No result found.');
            
            return result;
        } catch (error) {
            throw new Error(error.message);
        }
    };
}

// caraa pemakaiannyaa:
const ai = new TypeEasy();
ai.chat('hai! apa kabar?').then(console.log);