# -*- coding: utf-8 -*-
###############################################################################
# ScribeEngine - Open Source Content Management System                        #
# --------------------------------------------------------------------------- #
# Copyright (c) 2010-2021 Raoul Snyman                                        #
# --------------------------------------------------------------------------- #
# This file is part of ScribeEngine.                                          #
#                                                                             #
# ScribeEngine is free software: you can redistribute it and/or modify it     #
# under the terms of the GNU General Public License as published by the Free  #
# Software Foundation, either version 3 of the License, or (at your option)   #
# any later version.                                                          #
#                                                                             #
# ScribeEngine is distributed in the hope that it will be useful, but WITHOUT #
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or       #
# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for   #
# more details.                                                               #
#                                                                             #
# You should have received a copy of the GNU General Public License along     #
# with ScribeEngine.  If not, see <https://www.gnu.org/licenses/>.            #
###############################################################################
"""
The :mod:`~scribeengine` module sets up and runs ScribeEngine
"""
import os

from flask import Flask
from flask_mail import Mail
from flask_themes2 import Themes, packaged_themes_loader, theme_paths_loader, load_themes_from
from flask_user import UserManager

# from scribeengine.admin import admin
from scribeengine.config import read_config_from_file
from scribeengine.db import db
from scribeengine.models import User
from scribeengine.views.account import account
from scribeengine.views.node import node_views


def _scribeengine_themes_loader(app):
    """
    Loads ScribeEngine's themes
    """
    themes_path = os.path.join(os.path.dirname(__file__), 'themes')
    return load_themes_from(themes_path)


def create_app(config_file=None):
    """
    Create the application object
    """
    application = Flask('ScribeEngine')
    # Set up configuration
    if not config_file:
        if os.environ.get('SCRIBEENGINE_CONFIG'):
            config_file = os.environ['SCRIBEENGINE_CONFIG']
        elif os.path.exists('config.ini'):
            config_file = 'config.ini'
    if config_file:
        application.config.update(read_config_from_file(config_file))
    # Set up mail, themes
    Mail(application)
    Themes(application, app_identifier='ScribeEngine', loaders=[
        _scribeengine_themes_loader, packaged_themes_loader, theme_paths_loader])
    # Set up database
    db.init_app(application)
    db.create_all(app=application)
    # Setup Flask-User
    UserManager(application, db, User)
    # Register all the blueprints
    application.register_blueprint(admin)
    application.register_blueprint(node_views)
    application.register_blueprint(account)
    # Return the application object
    return application