from flask import Flask, request, jsonify, render_template
import random
import string
import time
from threading import Timer

app = Flask(__name__)

# In-memory storage for game sessions and player data
sessions = {}
waiting_session = None

def generate_session_id():
    return ''.join(random.choices(string.digits, k=4))

def generate_player_id():
    return ''.join(random.choices(string.ascii_uppercase + string.digits, k=6))

def create_game_session():
    global waiting_session
    if waiting_session:
        session_id = waiting_session
        waiting_session = None
    else:
        session_id = generate_session_id()
        while session_id in sessions:
            session_id = generate_session_id()
        waiting_session = session_id
    
    if session_id not in sessions:
        sessions[session_id] = {
            'players': [],
            'words': {},
            'current_player': None,
            'guesses': set(),
            'incorrect_guesses': 0,
            'last_activity': time.time()
        }
    return session_id

def join_game_session(session_id):
    if session_id not in sessions:
        return None
    player_id = generate_player_id()
    sessions[session_id]['players'].append(player_id)
    sessions[session_id]['last_activity'] = time.time()
    return player_id

@app.route('/')
def index():
    return render_template('index.html')

@app.route('/play', methods=['POST'])
def play():
    session_id = create_game_session()
    player_id = join_game_session(session_id)
    return jsonify({
        'session_id': session_id, 
        'player_id': player_id,
        'waiting': len(sessions[session_id]['players']) == 1
    })

@app.route('/check_status/<session_id>', methods=['GET'])
def check_status(session_id):
    if session_id in sessions:
        return jsonify({
            'players': len(sessions[session_id]['players']),
            'waiting': len(sessions[session_id]['players']) == 1
        })
    return jsonify({'error': 'Session not found'}), 404

@app.route('/submit_word', methods=['POST'])
def submit_word():
    data = request.json
    session_id = data['session_id']
    player_id = data['player_id']
    word = data['word'].lower()
    
    if len(word) != 7:
        return jsonify({'error': 'Word must be 7 letters long'}), 400
    
    sessions[session_id]['words'][player_id] = word
    sessions[session_id]['last_activity'] = time.time()
    
    if len(sessions[session_id]['words']) == 2:
        sessions[session_id]['current_player'] = sessions[session_id]['players'][0]
        return jsonify({'status': 'game_started'})
    return jsonify({'status': 'waiting_for_opponent'})

@app.route('/guess', methods=['POST'])
def guess():
    data = request.json
    session_id = data['session_id']
    player_id = data['player_id']
    guess = data['guess'].lower()
    
    if player_id != sessions[session_id]['current_player']:
        return jsonify({'error': 'Not your turn'}), 400
    
    session = sessions[session_id]
    session['guesses'].add(guess)
    
    opponent = [p for p in session['players'] if p != player_id][0]
    if guess not in session['words'][opponent]:
        session['incorrect_guesses'] += 1
    
    if session['incorrect_guesses'] >= 6:
        return jsonify({'status': 'game_over', 'winner': opponent})
    
    if all(letter in session['guesses'] for letter in session['words'][opponent]):
        return jsonify({'status': 'game_over', 'winner': player_id})
    
    session['current_player'] = opponent
    session['last_activity'] = time.time()
    
    return jsonify({'status': 'continue'})

@app.route('/game_state/<session_id>')
def game_state(session_id):
    if session_id not in sessions:
        return jsonify({'error': 'Session not found'}), 404
    
    session = sessions[session_id]
    return jsonify({
        'players': session['players'],
        'current_player': session['current_player'],
        'guesses': list(session['guesses']),
        'incorrect_guesses': session['incorrect_guesses'],
        'words': {player: ''.join(['_' if letter not in session['guesses'] else letter for letter in word]) 
                  for player, word in session['words'].items()}
    })

def cleanup_inactive_sessions():
    current_time = time.time()
    global waiting_session
    for session_id in list(sessions.keys()):
        if current_time - sessions[session_id]['last_activity'] > 60:
            if session_id == waiting_session:
                waiting_session = None
            del sessions[session_id]
    Timer(60, cleanup_inactive_sessions).start()

if __name__ == '__main__':
    cleanup_inactive_sessions()
    app.run(host='0.0.0.0', port=7860)