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

app = Flask(__name__)
app.secret_key = os.environ.get("FLASK_SECRET_KEY", os.urandom(24))
app.config["SQLALCHEMY_DATABASE_URI"] = os.environ.get("DATABASE_URL")
app.config["SQLALCHEMY_TRACK_MODIFICATIONS"] = False
app.config["SQLALCHEMY_ENGINE_OPTIONS"] = {
    "pool_recycle": 300,
    "pool_pre_ping": True,
}

db = SQLAlchemy(app)

class Bot(db.Model):
    __tablename__ = 'bots'
    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String(100), nullable=False)
    description = db.Column(db.Text)
    health_endpoint = db.Column(db.String(500))
    admin_token = db.Column(db.String(200))
    bot_type = db.Column(db.String(50), default='discord')
    status = db.Column(db.String(20), default='unknown')
    last_checked = db.Column(db.DateTime)
    guild_count = db.Column(db.Integer, default=0)
    command_count = db.Column(db.Integer, default=0)
    uptime_seconds = db.Column(db.Integer, default=0)
    created_at = db.Column(db.DateTime, default=datetime.utcnow)
    updated_at = db.Column(db.DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)

    def to_dict(self):
        return {
            'id': self.id,
            'name': self.name,
            'description': self.description,
            'has_health_endpoint': bool(self.health_endpoint),
            'has_admin_token': bool(self.admin_token),
            'bot_type': self.bot_type,
            'status': self.status,
            'last_checked': self.last_checked.isoformat() if self.last_checked else None,
            'guild_count': self.guild_count,
            'command_count': self.command_count,
            'uptime_seconds': self.uptime_seconds,
            'created_at': self.created_at.isoformat() if self.created_at else None,
        }

class BotLog(db.Model):
    __tablename__ = 'bot_logs'
    id = db.Column(db.Integer, primary_key=True)
    bot_id = db.Column(db.Integer, db.ForeignKey('bots.id'), nullable=False)
    level = db.Column(db.String(20), default='info')
    message = db.Column(db.Text)
    timestamp = db.Column(db.DateTime, default=datetime.utcnow)
    
    bot = db.relationship('Bot', backref=db.backref('logs', lazy='dynamic'))

with app.app_context():
    db.create_all()

def check_bot_health(bot):
    if not bot.health_endpoint:
        return {'status': 'unknown', 'error': 'No health endpoint configured'}
    
    try:
        headers = {}
        if bot.admin_token:
            headers['Authorization'] = f'Bearer {bot.admin_token}'
        
        response = requests.get(bot.health_endpoint, headers=headers, timeout=10)
        if response.status_code == 200:
            data = response.json()
            bot.status = data.get('status', 'online')
            bot.guild_count = data.get('guilds', data.get('guildCount', 0))
            bot.command_count = data.get('commands', data.get('commandCount', 0))
            bot.uptime_seconds = data.get('uptime', 0)
            bot.last_checked = datetime.utcnow()
            db.session.commit()
            return {'status': 'online', 'data': data}
        else:
            bot.status = 'offline'
            bot.last_checked = datetime.utcnow()
            db.session.commit()
            return {'status': 'offline', 'error': f'HTTP {response.status_code}'}
    except requests.exceptions.Timeout:
        bot.status = 'timeout'
        bot.last_checked = datetime.utcnow()
        db.session.commit()
        return {'status': 'timeout', 'error': 'Request timed out'}
    except requests.exceptions.ConnectionError:
        bot.status = 'offline'
        bot.last_checked = datetime.utcnow()
        db.session.commit()
        return {'status': 'offline', 'error': 'Connection failed'}
    except Exception as e:
        bot.status = 'error'
        bot.last_checked = datetime.utcnow()
        db.session.commit()
        return {'status': 'error', 'error': str(e)}

@app.route('/')
def dashboard():
    bots = Bot.query.order_by(Bot.created_at.desc()).all()
    stats = {
        'total_bots': len(bots),
        'online_bots': sum(1 for b in bots if b.status == 'online'),
        'total_guilds': sum(b.guild_count or 0 for b in bots),
        'total_commands': sum(b.command_count or 0 for b in bots),
    }
    return render_template('dashboard.html', bots=bots, stats=stats)

@app.route('/bots')
def list_bots():
    bots = Bot.query.order_by(Bot.created_at.desc()).all()
    return render_template('bots.html', bots=bots)

@app.route('/bots/add', methods=['GET', 'POST'])
def add_bot():
    if request.method == 'POST':
        name = request.form.get('name')
        description = request.form.get('description')
        health_endpoint = request.form.get('health_endpoint')
        admin_token = request.form.get('admin_token')
        bot_type = request.form.get('bot_type', 'discord')
        
        if not name:
            flash('Bot name is required', 'error')
            return redirect(url_for('add_bot'))
        
        bot = Bot(
            name=name,
            description=description,
            health_endpoint=health_endpoint,
            admin_token=admin_token,
            bot_type=bot_type
        )
        db.session.add(bot)
        db.session.commit()
        
        if health_endpoint:
            check_bot_health(bot)
        
        flash(f'Bot "{name}" added successfully!', 'success')
        return redirect(url_for('dashboard'))
    
    return render_template('add_bot.html')

@app.route('/bots/<int:bot_id>')
def view_bot(bot_id):
    bot = Bot.query.get_or_404(bot_id)
    return render_template('view_bot.html', bot=bot)

@app.route('/bots/<int:bot_id>/edit', methods=['GET', 'POST'])
def edit_bot(bot_id):
    bot = Bot.query.get_or_404(bot_id)
    
    if request.method == 'POST':
        bot.name = request.form.get('name', bot.name)
        bot.description = request.form.get('description')
        bot.health_endpoint = request.form.get('health_endpoint')
        new_token = request.form.get('admin_token')
        if new_token:
            bot.admin_token = new_token
        bot.bot_type = request.form.get('bot_type', 'discord')
        db.session.commit()
        
        flash(f'Bot "{bot.name}" updated successfully!', 'success')
        return redirect(url_for('view_bot', bot_id=bot.id))
    
    return render_template('edit_bot.html', bot=bot)

@app.route('/bots/<int:bot_id>/delete', methods=['POST'])
def delete_bot(bot_id):
    bot = Bot.query.get_or_404(bot_id)
    name = bot.name
    BotLog.query.filter_by(bot_id=bot.id).delete()
    db.session.delete(bot)
    db.session.commit()
    flash(f'Bot "{name}" deleted successfully!', 'success')
    return redirect(url_for('dashboard'))

@app.route('/bots/<int:bot_id>/check', methods=['POST'])
def check_bot(bot_id):
    bot = Bot.query.get_or_404(bot_id)
    result = check_bot_health(bot)
    return jsonify(result)

@app.route('/api/bots')
def api_list_bots():
    bots = Bot.query.all()
    return jsonify([bot.to_dict() for bot in bots])

@app.route('/api/bots/<int:bot_id>/health')
def api_bot_health(bot_id):
    bot = Bot.query.get_or_404(bot_id)
    result = check_bot_health(bot)
    return jsonify(result)

@app.route('/api/check-all', methods=['POST'])
def api_check_all():
    bots = Bot.query.all()
    results = {}
    for bot in bots:
        results[bot.id] = check_bot_health(bot)
    return jsonify(results)

if __name__ == '__main__':
    app.run(host='0.0.0.0', port=5000, debug=True)