from flask import Flask, jsonify, Response, request
from flask_sqlalchemy import SQLAlchemy
from api.extensions.esales import Esales
from api.helpers import check_api_key

db = SQLAlchemy()
esales = Esales()

def create_app(config_name='config'):
    app = Flask(__name__)
    app.config.from_object(config_name)

    db.init_app(app)
    esales.init_app(app)

    # register errors handlers
    @app.errorhandler(404)
    def on_404(e):
        return jsonify(dict(error='Not found')), 404

    # register blueprints
    from api.views import server, designers, categories
    app.register_blueprint(server.mod)
    app.register_blueprint(designers.mod)
    app.register_blueprint(categories.mod)

    # authentication
    app.before_request(check_api_key)

    return app