# app/__init__

# third party imports
from flask import Flask, render_template
from flask_sqlalchemy import SQLAlchemy
from flask_login import LoginManager
from flask_migrate import Migrate
from flask_bootstrap import Bootstrap
import flask_whooshalchemy as wa
# local imports
from config import app_config


# db variable initialization
db = SQLAlchemy()
login_manager = LoginManager()

def create_app(config_name):
    app = Flask(__name__, instance_relative_config=True)
    app.config.from_object(app_config[config_name])
    app.config.from_pyfile('config.py')
    app.config['SQLALCHEMY_TRACK_MODIFICATIONS']=True
    app.config['DEBUG']=True
    app.config['WHOOSH_BASE'] = 'D:\CRUD'
    Bootstrap(app)
    db.init_app(app)
    login_manager.init_app(app)
    login_manager.login_message = "You must be logged in to access this page."
    login_manager.login_view = "auth.login"
    migrate = Migrate(app, db)

    from models import Reports
    wa.whoosh_index(app, Reports)
    from models import Lives
    wa.whoosh_index(app, Lives)
    from models import Transports
    wa.whoosh_index(app, Transports)
    from models import Studios
    wa.whoosh_index(app, Studios)
    from models import Sngorders
    wa.whoosh_index(app, Sngorders)

    from .its import its as its_blueprint
    app.register_blueprint(its_blueprint, url_prefix='/its')

    from .auth import auth as auth_blueprint
    app.register_blueprint(auth_blueprint)

    from .home import home as home_blueprint
    app.register_blueprint(home_blueprint)

    @app.errorhandler(403)
    def forbidden(error):
        return render_template('errors/403.html', title='Forbidden'), 403

    @app.errorhandler(404)
    def page_not_found(error):
        return render_template('errors/404.html', title='Page Not Found'), 404

    @app.errorhandler(500)
    def internal_server_error(error):
        return render_template('errors/500.html', title='Server Error'), 500

    return app


