import httpx
import logging
from datetime import datetime
from typing import List, Dict, Any

logger = logging.getLogger(__name__)

def _roster_cache_ttl() -> int:
    """Roster cache TTL in seconds. 0 disables caching entirely."""
    try:
        from app.config.dynamic_config import get_config
        return int(get_config().get("rider_roster_cache_ttl_seconds", 30))
    except Exception:
        return 30


async def fetch_active_riders() -> List[Dict[str, Any]]:
    """
    Fetch active rider logs from the external API for the current date.
    Returns a list of rider log dictionaries.

    This upstream call measured ~6s on live traffic and was the single largest
    component of riderassign latency, so successful responses are cached for
    `rider_roster_cache_ttl_seconds`. The TTL is deliberately short: a rider
    going on or off duty must become visible quickly, and the absent-rider
    validation in the assignment path checks against this roster.

    Only non-empty successes are cached. Caching an empty result or a failure
    would turn a brief upstream blip into a full-TTL outage where every request
    sees zero riders.
    """
    today_str = datetime.now().strftime("%Y-%m-%d")
    ttl = _roster_cache_ttl()
    cache_key = f"riders:active:{today_str}"

    if ttl > 0:
        try:
            from app.services import cache as _cache
            cached = _cache.get_json(cache_key)
            if isinstance(cached, list) and cached:
                logger.debug(f"[Riders] roster cache hit ({len(cached)} riders)")
                return cached
        except Exception:
            pass

    try:
        url = "https://jupiter.nearle.app/live/api/v2/partners/getriderlogs/"
        params = {
            "applocationid": 1,
            "partnerid": 44,
            "fromdate": today_str,
            "todate": today_str,
            "keyword": ""
        }

        async with httpx.AsyncClient(timeout=30.0) as client:
            response = await client.get(url, params=params)
            response.raise_for_status()
            data = response.json()

            if data and data.get("code") == 200 and data.get("details"):
                 # Filter riders who are in our preferences list and are 'active' or 'idle' (assuming we want online riders)
                 # The user's example showed "onduty": 1. We might want to filter by that.
                 # For now, returning all logs, filtering can happen in assignment logic or here.
                 # Let's return the raw list as requested, filtering logic will be applied during assignment.
                 riders = data.get("details", [])
                 if riders and ttl > 0:
                     try:
                         from app.services import cache as _cache
                         _cache.set_json(cache_key, riders, ttl_seconds=ttl)
                     except Exception:
                         pass
                 return riders

            logger.warning(f"Fetch active riders returned no details: {data}")
            return []

    except Exception as e:
        logger.error(f"Error fetching active riders: {e}", exc_info=True)
        return []

async def fetch_created_orders() -> List[Dict[str, Any]]:
    """
    Fetch all orders in 'created' state for the current date.
    """
    try:
        today_str = datetime.now().strftime("%Y-%m-%d")
        url = "https://jupiter.nearle.app/live/api/v1/orders/tenant/getorders/"
        # Removed pagesize as per user request to fetch all
        params = {
            "applocationid": 0,
            "tenantid": 0,
            "locationid": 0,
            "status": "created",
            "fromdate": today_str,
            "todate": today_str,
            "keyword": "",
            "pageno": 1
            # "pagesize" intentionally omitted to fetch all
        }
         
        async with httpx.AsyncClient(timeout=60.0) as client:
            response = await client.get(url, params=params)
            response.raise_for_status()
            data = response.json()
            
            if data and data.get("code") == 200 and data.get("details"):
                return data.get("details", [])
            
            logger.warning(f"Fetch created orders returned no details: {data}")
            return []

    except Exception as e:
        logger.error(f"Error fetching created orders: {e}", exc_info=True)
        return []