import requests
from datetime import datetime

class SleeperAPI:
    BASE_URL = 'https://api.sleeper.app/v1'
    
    def __init__(self):
        self.session = requests.Session()
        self.players_cache = None  # Cache player data
        self.players_updated = None  # Track last update time
    
    def get_user(self, username):
        """Get user info by username"""
        try:
            response = self.session.get(f"{self.BASE_URL}/user/{username}")
            response.raise_for_status()
            return response.json()
        except requests.exceptions.RequestException:
            return None
    
    def get_user_by_id(self, user_id):
        """Get user info by user_id"""
        try:
            response = self.session.get(f"{self.BASE_URL}/user/{user_id}")
            response.raise_for_status()
            return response.json()
        except requests.exceptions.RequestException:
            return None
    
    def get_nfl_state(self):
        """Get current NFL state (week, season, etc)"""
        response = self.session.get(f"{self.BASE_URL}/state/nfl")
        response.raise_for_status()
        return response.json()
    
    def get_user_leagues(self, user_id, season):
        """Get all leagues for a user in a season"""
        response = self.session.get(f"{self.BASE_URL}/user/{user_id}/leagues/nfl/{season}")
        response.raise_for_status()
        return response.json()
    
    def get_matchups(self, league_id, week):
        """Get matchups for a league and week"""
        response = self.session.get(f"{self.BASE_URL}/league/{league_id}/matchups/{week}")
        response.raise_for_status()
        return response.json()
    
    def get_rosters(self, league_id):
        """Get rosters for a league"""
        response = self.session.get(f"{self.BASE_URL}/league/{league_id}/rosters")
        response.raise_for_status()
        return response.json()
    
    def get_players(self, force_refresh=False):
        """Get all NFL players (cached for 24 hours)"""
        now = datetime.now()
        
        # Check if cache is stale or force refresh requested
        if (not self.players_cache or not self.players_updated or 
            (now - self.players_updated).total_seconds() > 86400 or force_refresh):
            
            response = self.session.get(f"{self.BASE_URL}/players/nfl")
            response.raise_for_status()
            self.players_cache = response.json()
            self.players_updated = now
        
        return self.players_cache
    
    def get_player_info(self, player_id):
        """Get specific player info"""
        players = self.get_players()
        player_info = players.get(str(player_id))
        
        
        return player_info