import os
from flask import Flask
from .models import db, User
from .routes import bp


def create_app():
    app = Flask(__name__, instance_relative_config=False)
    app.config['SECRET_KEY'] = os.getenv('SECRET_KEY', 'change-me')
    app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:////app/data/streamhub.db'
    app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
    app.config['ADMIN_USERNAME'] = os.getenv('ADMIN_USERNAME', 'admin')
    app.config['ADMIN_PASSWORD'] = os.getenv('ADMIN_PASSWORD', 'ChangeMe123!')
    app.config['PUBLIC_BASE_URL'] = os.getenv('PUBLIC_BASE_URL', 'https://localhost')
    app.config['MEDIA_BASE_URL'] = os.getenv('MEDIA_BASE_URL', 'http://mediamtx:8888')
    app.config['MEDIA_PUBLIC_HLS_BASE'] = os.getenv('MEDIA_PUBLIC_HLS_BASE', app.config['PUBLIC_BASE_URL'].rstrip('/') + '/hls')
    app.config['MEDIAMTX_API_URL'] = os.getenv('MEDIAMTX_API_URL', 'http://mediamtx:9997')

    db.init_app(app)
    app.register_blueprint(bp)

    with app.app_context():
        db.create_all()
        if not User.query.filter_by(username=app.config['ADMIN_USERNAME']).first():
            admin = User(username=app.config['ADMIN_USERNAME'], role='admin', active=True)
            admin.set_password(app.config['ADMIN_PASSWORD'])
            db.session.add(admin)
            db.session.commit()

    return app