const axios = require('axios');

async function perplexed(question) {
    try {
        if (!question) throw new Error('Question is required.');
        
        const { data } = await axios.post('https://d21l5c617zttgr.cloudfront.net/stream_search', {
            user_prompt: question
        }, {
            headers: {
                origin: 'https://d21l5c617zttgr.cloudfront.net',
                referer: 'https://d21l5c617zttgr.cloudfront.net/',
                'user-agent': 'Mozilla/5.0 (Linux; Android 15; SM-F958 Build/AP3A.240905.015) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.6723.86 Mobile Safari/537.36'
            }
        });
        
        if (!data || typeof data !== 'string') throw new Error('No result found.');
        
        const allSteps = data.split('[/PERPLEXED-SEPARATOR]').filter(text => text.trim() !== '').map(part => {
            try {
                return JSON.parse(part);
            } catch (err) {}
        }).filter(item => item !== null);
        
        const result = allSteps.length > 0 ? allSteps[allSteps.length - 1] : null;
        if (!result) throw new Error('No result found.');
        
        return {
            answer: result.answer,
            sources: result.websearch_docs || []
        };
    } catch (error) {
        throw new Error(error.message);
    }
}

// Usage:
perplexed('what is llm?').then(console.log);