import asyncio
import json
import websockets
from datetime import datetime, timezone

async def pulse(duration_seconds=15):
    uri = 'wss://jetstream2.us-east.bsky.network/subscribe'
    posts, likes, follows = 0, 0, 0
    hashtags = {}
    
    start = datetime.now(timezone.utc)
    
    async with websockets.connect(uri) as ws:
        while (datetime.now(timezone.utc) - start).seconds < duration_seconds:
            try:
                msg = await asyncio.wait_for(ws.recv(), timeout=1)
                data = json.loads(msg)
                
                commit = data.get('commit', {})
                collection = commit.get('collection', '')
                
                if collection == 'app.bsky.feed.post':
                    posts += 1
                    # Extract hashtags
                    text = commit.get('record', {}).get('text', '')
                    for word in text.split():
                        if word.startswith('#'):
                            tag = word[1:].lower().rstrip('.,!?')
                            hashtags[tag] = hashtags.get(tag, 0) + 1
                elif collection == 'app.bsky.feed.like':
                    likes += 1
                elif collection == 'app.bsky.graph.follow':
                    follows += 1
            except asyncio.TimeoutError:
                continue
    
    return {
        'duration': duration_seconds,
        'posts': posts,
        'likes': likes,
        'follows': follows,
        'posts_per_min': posts * 60 // duration_seconds,
        'top_hashtags': sorted(hashtags.items(), key=lambda x: -x[1])[:5]
    }

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feed_uri = 'at://did:plc:gfrmhdmjvxn2sjedzboeudef/app.bsky.feed.generator/the-atmosphere'

async with httpx.AsyncClient() as client:
    resp = await client.get(
        'https://public.api.bsky.app/xrpc/app.bsky.feed.getFeed',
        params={'feed': feed_uri, 'limit': 20}
    )
    posts = resp.json().get('feed', [])

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