"""Healthcheck endpoint for monitoring."""
import asyncio
import json
from pathlib import Path
from aiohttp import web
from app.logger import logger

routes = web.RouteTableDef()


@routes.get("/health")
async def health(request):
    """Basic health check — returns bot status."""
    health_data = {
        "status": "ok",
        "service": "spa-telegram-bot",
        "timestamp": asyncio.get_event_loop().time(),
    }

    # Check if data files exist
    data_dir = Path(__file__).resolve().parent.parent / "data"
    health_data["data_dir_exists"] = data_dir.exists()

    return web.json_response(health_data, status=200)


@routes.get("/health/ready")
async def ready(request):
    """Readiness check — can the bot accept requests?"""
    return web.json_response({"status": "ready"}, status=200)


async def start_health_server(port: int = 8080):
    """Start healthcheck HTTP server on given port."""
    app = web.Application()
    app.add_routes(routes)
    runner = web.AppRunner(app)
    await runner.setup()
    site = web.TCPSite(runner, "0.0.0.0", port)
    await site.start()
    logger.info("Healthcheck server started on port {port}", port=port)
    return runner