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

app = Flask(__name__)
app.config['SECRET_KEY'] = 'your-secret-key'  # Replace with a real secret key

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

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

def create_game_session():
    global waiting_session
    session_id = generate_session_id()
    while session_id in sessions:
        session_id = generate_session_id()
    sessions[session_id] = {
        'players': [],
        'words': {},
        'current_player_index': 0,
        'guesses': set(),
        'incorrect_guesses': 0,
        'last_activity': time.time(),
        'game_started': False
    }
    waiting_session = session_id
    return session_id

def join_game_session():
    global waiting_session
    if waiting_session and waiting_session in sessions:
        session_id = waiting_session
    else:
        session_id = create_game_session()
    
    player_index = len(sessions[session_id]['players'])
    sessions[session_id]['players'].append(player_index)
    sessions[session_id]['last_activity'] = time.time()
    
    if len(sessions[session_id]['players']) == 2:
        waiting_session = None
        sessions[session_id]['game_started'] = True
    
    return session_id, player_index

def update_game_state(session_id, guess):
    session = sessions[session_id]
    current_player_index = session['current_player_index']
    opponent_index = 1 - current_player_index
    
    guess = guess.lower()
    session['guesses'].add(guess)
    
    if guess not in session['words'][opponent_index]:
        session['incorrect_guesses'] += 1
    
    if session['incorrect_guesses'] >= 6:
        return 'game_over'
    
    if all(letter in session['guesses'] for letter in session['words'][opponent_index]):
        return 'winner'
    
    session['current_player_index'] = opponent_index
    session['last_activity'] = time.time()
    return 'continue'

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

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

@app.route('/check_status/<session_id>', methods=['GET'])
def check_status(session_id):
    if session_id in sessions:
        status = 'ready' if sessions[session_id]['game_started'] else 'waiting'
        return jsonify({'status': status})
    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_index = data['player_index']
    word = data['word'].lower()
    
    if len(word) != 7:
        return jsonify({'error': 'Word must be 7 letters long'}), 400
    
    sessions[session_id]['words'][player_index] = word
    sessions[session_id]['last_activity'] = time.time()
    
    if len(sessions[session_id]['words']) == 2:
        sessions[session_id]['game_started'] = True
        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_index = int(data['player_index'])
    guess = data['guess'].lower()
    
    if player_index != sessions[session_id]['current_player_index']:
        return jsonify({'error': 'Not your turn'}), 400
    
    result = update_game_state(session_id, guess)
    
    if result == 'game_over':
        winner = 1 - sessions[session_id]['current_player_index']
        return jsonify({'status': 'game_over', 'winner': winner})
    elif result == 'winner':
        return jsonify({'status': 'game_over', 'winner': player_index})
    
    return jsonify({'status': 'continue'})

@app.route('/game_state/<session_id>/<player_index>')
def game_state(session_id, player_index):
    if session_id not in sessions:
        return jsonify({'error': 'Session not found'}), 404
    
    session = sessions[session_id]
    player_index = int(player_index)
    opponent_index = 1 - player_index
    
    return jsonify({
        'current_player_index': session['current_player_index'],
        'guesses': list(session['guesses']),
        'incorrect_guesses': session['incorrect_guesses'],
        'player_word': ''.join(['_' if letter not in session['guesses'] else letter for letter in session['words'].get(player_index, '')]),
        'opponent_word': ''.join(['_' if letter not in session['guesses'] else letter for letter in session['words'].get(opponent_index, '')])
    })

def cleanup_inactive_sessions():
    global waiting_session
    current_time = time.time()
    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)