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from fastapi import FastAPI, HTTPException, Query
from pydantic import BaseModel
from playwright.async_api import async_playwright, TimeoutError as PlaywrightTimeout
from typing import List, Optional
import datetime
import logging

logging.basicConfig(level=logging.INFO)
app = FastAPI(title="RealEstateSnap")

class Listing(BaseModel):
    title: str
    price: Optional[str]
    address: Optional[str]
    bedrooms: Optional[str]
    bathrooms: Optional[str]
    listing_url: str
    image_url: Optional[str]
    platform: str
    timestamp: str

async def scrape_craigslist(location: str, limit: int = 10) -> List[Listing]:
    listings = []
    async with async_playwright() as p:
        browser = await p.chromium.launch(headless=True)
        page = await browser.new_page()
        url = f"https://{location.replace(' ', '').lower()}.craigslist.org/search/apa"
        logging.info(f"➡️ Going to {url}")
        await page.goto(url)
        items = await page.query_selector_all(".result-row")[:limit]
        for item in items:
            try:
                title = await item.inner_text(".result-title")
                href = await item.get_attribute(".result-title", "href")
                price = await item.inner_text(".result-price")
                listings.append(Listing(
                    title=title.strip(),
                    price=price.strip(),
                    address="",
                    bedrooms="",
                    bathrooms="",
                    listing_url=href,
                    image_url=None,
                    platform="craigslist",
                    timestamp=datetime.datetime.utcnow().isoformat()
                ))
            except PlaywrightTimeout:
                logging.warning("Skipped a troublesome item")
        await browser.close()
    return listings

@app.get("/realestate", response_model=List[Listing])
async def get_listings(
    location: str = Query(...),
    platform: Optional[List[str]] = Query(["craigslist"])
):
    platform = [p.lower() for p in platform]
    results = []
    if "craigslist" in platform:
        try:
            results += await scrape_craigslist(location)
        except Exception as e:
            raise HTTPException(status_code=500, detail=str(e))
    # TODO: Add Zillow and Realtor here...
    if not results:
        raise HTTPException(status_code=404, detail="No listings found")
    return results