from flask import Flask, request, jsonify, render_template, redirect, url_for, flash
from flask_sqlalchemy import SQLAlchemy
from datetime import datetime, timedelta
import os
import threading
import requests

app = Flask(__name__)
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///logs.db'
app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
app.secret_key = 'supersecretkey'
db = SQLAlchemy(app)

class Log(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    hostname = db.Column(db.String(100), nullable=False)
    ip_address = db.Column(db.String(100), nullable=False)
    message = db.Column(db.String(500), nullable=False)
    timestamp = db.Column(db.DateTime, default=datetime.utcnow)
    relay_status = db.Column(db.String(4), default='off,off,off,off')  # Status of 4 relays
    input_status = db.Column(db.String(4), default='off,off,off,off')  # Status of 4 inputs

# Create the database if it does not exist
if not os.path.exists('instance/logs.db'):
    with app.app_context():
        db.create_all()

# Flag to check if tables are created
tables_created = False

@app.before_request
def create_tables():
    global tables_created
    if not tables_created:
        db.create_all()
        tables_created = True

@app.route('/log', methods=['POST'])
def log_message():
    data = request.get_json()
    hostname = data.get('hostname')
    ip_address = data.get('ip_address')
    message = data.get('message')
    relay_status = data.get('relay_status', 'off,off,off,off')
    input_status = data.get('input_status', 'off,off,off,off')
    
    if hostname and ip_address and message:
        # Parse the message to update relay status
        if "Relay" in message and "turned" in message:
            parts = message.split()
            relay_index = int(parts[1]) - 1
            action = parts[3].lower()
            relay_status_list = relay_status.split(',')
            relay_status_list[relay_index] = action
            relay_status = ','.join(relay_status_list)
        
        new_log = Log(hostname=hostname, ip_address=ip_address, message=message, relay_status=relay_status, input_status=input_status)
        db.session.add(new_log)
        db.session.commit()
        return jsonify({'status': 'success', 'message': 'Log saved'}), 201
    return jsonify({'status': 'error', 'message': 'Invalid data'}), 400

@app.route('/logs', methods=['GET'])
def get_logs():
    logs = Log.query.all()
    return jsonify([{'id': log.id, 'hostname': log.hostname, 'message': log.message, 'timestamp': log.timestamp} for log in logs])

@app.route('/cleanup', methods=['DELETE'])
def cleanup_logs():
    cutoff_date = datetime.utcnow() - timedelta(hours=app.config.get('CLEANUP_TIME', 24))
    Log.query.filter(Log.timestamp < cutoff_date).delete()
    db.session.commit()
    return jsonify({'status': 'success', 'message': 'Old logs deleted'})

@app.route('/')
def index():
    # Get the latest log entry for each board
    latest_logs = db.session.query(Log).order_by(Log.timestamp.desc()).all()
    boards = {}
    for log in latest_logs:
        if log.hostname not in boards:
            boards[log.hostname] = log

    # Determine the status of each board
    board_status = []
    for hostname, log in boards.items():
        time_diff = datetime.utcnow() - log.timestamp
        status = 'Online' if time_diff.total_seconds() <= 20 else 'Possible Offline'
        board_status.append({'hostname': hostname, 'status': status, 'last_seen': log.timestamp})

    return render_template('index.html', boards=board_status)

@app.route('/board/<hostname>')
def view_board(hostname):
    logs = Log.query.filter_by(hostname=hostname).order_by(Log.timestamp.desc()).limit(50).all()
    relay_status = ['off', 'off', 'off', 'off']
    input_status = ['off', 'off', 'off', 'off']
    if logs:
        latest_log = logs[0]
        relay_status = latest_log.relay_status.split(',')
        input_status = latest_log.input_status.split(',')
    ip_address = logs[0].ip_address if logs else ''  # Get the IP address from the logs
    last_update = logs[0].timestamp if logs else None  # Get the last update time
    
    return render_template('board.html', hostname=hostname, ip_address=ip_address, logs=logs, relay_status=relay_status, input_status=input_status, last_update=last_update)

@app.route('/delete_board/<hostname>', methods=['POST'])
def delete_board(hostname):
    Log.query.filter_by(hostname=hostname).delete()
    db.session.commit()
    return redirect(url_for('index'))

@app.route('/board/<hostname>/logs', methods=['GET'])
def get_board_logs(hostname):
    logs = Log.query.filter_by(hostname=hostname).order_by(Log.timestamp.desc()).all()
    return jsonify({'logs': [{'timestamp': log.timestamp, 'message': log.message} for log in logs]})

@app.route('/board/<hostname>/relay/<int:relay>/<action>', methods=['POST'])
def control_relay(hostname, relay, action):
    log = Log.query.filter_by(hostname=hostname).order_by(Log.timestamp.desc()).first()
    if log:
        ip_address = log.ip_address
        url = f"http://{ip_address}/relay"
        payload = {
            "relay": relay,
            "action": action
        }
        try:
            response = requests.post(url, data=payload)
            if response.status_code == 200:
                return redirect(url_for('view_board', hostname=hostname))
            else:
                return f"Failed to control relay: {response.text}", 500
        except Exception as e:
            return f"Error controlling relay: {e}", 500
    else:
        return f"No logs found for hostname: {hostname}", 404

@app.route('/settings', methods=['GET'])
def settings():
    cleanup_time = app.config.get('CLEANUP_TIME', 24)
    return render_template('settings.html', cleanup_time=cleanup_time)

@app.route('/set_cleanup_time', methods=['POST'])
def set_cleanup_time():
    cleanup_time = request.form.get('cleanup_time')
    if cleanup_time:
        app.config['CLEANUP_TIME'] = int(cleanup_time)
        flash('Cleanup time set successfully!', 'success')
    else:
        flash('Invalid cleanup time!', 'danger')
    return redirect(url_for('settings'))

@app.route('/run_cleanup_now', methods=['POST'])
def run_cleanup_now():
    with app.app_context():
        cutoff_date = datetime.utcnow() - timedelta(hours=app.config.get('CLEANUP_TIME', 24))
        Log.query.filter(Log.timestamp < cutoff_date).delete()
        db.session.commit()
    flash('Cleanup executed successfully!', 'success')
    return redirect(url_for('settings'))

def post_action_to_server(hostname, action):
    url = "http://your-server-url.com/action"
    payload = {
        "hostname": hostname,
        "action": action
    }
    try:
        response = requests.post(url, json=payload)
        if response.status_code == 200:
            print(f"Action posted successfully: {action}")
        else:
            print(f"Failed to post action: {action}")
    except Exception as e:
        print(f"Error posting action: {e}")

def schedule_cleanup():
    with app.app_context():
        cutoff_date = datetime.utcnow() - timedelta(hours=app.config.get('CLEANUP_TIME', 24))
        Log.query.filter(Log.timestamp < cutoff_date).delete()
        db.session.commit()
    threading.Timer(3600, schedule_cleanup).start()

if __name__ == '__main__':
    schedule_cleanup()  # Start the cleanup scheduler
    app.run(host='0.0.0.0', port=5000)