const axios = require('axios');

async function chatgpt2022(question, { model = 'gpt-5', reasoning_effort = 'medium' } = {}) {
    try {
        const conf = {
            models: ['gpt-5', 'gpt-3.5'],
            reasoning: ['minimal', 'low', 'medium', 'high']
        };
        
        if (!question) throw new Error('Question is required');
        if (!conf.models.includes(model)) throw new Error(`Available models: ${conf.models.join(', ')}`);
        if (model === 'gpt-5' && !conf.reasoning.includes(reasoning_effort)) throw new Error(`Available reasoning effort: ${conf.reasoning.join(', ')}`);
        
        const { data } = await axios.post('https://chatgpt-2022.vercel.app/api/chat', {
            conversationId: Date.now().toString(),
            messages: [{
                role: 'user',
                content: question
            }],
            ...(model === 'gpt-5' ? { reasoningEffort: reasoning_effort } : {}),
            model: model
        }, {
            headers: {
                'content-type': 'application/json',
                'user-agent': 'Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Mobile Safari/537.36'
            }
        });
        
        const reasoning = data.split('\n\n').filter(line => line).map(line => JSON.parse(line.substring(6))).filter(line => line.type === 'reasoning-done')?.[0]?.text || '';
        const text = data.split('\n\n').filter(line => line).map(line => JSON.parse(line.substring(6))).filter(line => line.type === 'text-delta').map(line => line.textDelta).join('') || '';
        
        return {
            reasoning,
            text
        };
    } catch (error) {
        throw new Error(error.message);
    }
}

// Usage:
const resp = await chatgpt2022('hi!', { model: 'gpt-3.5' });
console.log(resp);