# -*- coding: utf-8 -*-


"""Middleware initialization"""


import logging.config
import os

from paste.cascade import Cascade
from paste.urlparser import StaticURLParser
from weberror.errormiddleware import ErrorMiddleware

from . import configuration, context, controllers, templates

import db


def make_app(global_conf, **app_conf):
    """Create a WSGI application and return it

    ``global_conf``
        The inherited configuration for this application. Normally from
        the [DEFAULT] section of the Paste ini file.

    ``app_conf``
        The application's local configuration. Normally specified in
        the [app:<name>] section of the Paste ini file (where <name>
        defaults to main).
    """
    logging.config.fileConfig(global_conf['__file__'])
    app_ctx = context.Context()
    app_ctx.conf = configuration.load_configuration(global_conf, app_conf)
    app_ctx.templates = templates.load_templates(app_ctx)
    app_ctx.db = db.DB(
      app_ctx.conf.get('dbhost','localhost'),
      app_ctx.conf.get('dbuser','myco'),
      app_ctx.conf.get('dbpass','password'),
      app_ctx.conf.get('dbname','myco'),
    )
    if not app_ctx.db.connect():
      logging.error('Failed to connect DB')
    app = controllers.make_router()
    app = context.make_add_context_to_request(app, app_ctx)
    if not app_ctx.conf['debug']:
        app = ErrorMiddleware(
            app,
            error_email=app_ctx.conf['email_to'],
            error_log=app_ctx.conf.get('error_log', None),
            error_message=app_ctx.conf.get('error_message', 'An internal server error occurred'),
            error_subject_prefix=app_ctx.conf.get('error_subject_prefix', 'Web application error: '),
            from_address=app_ctx.conf['from_address'],
            smtp_server=app_ctx.conf.get('smtp_server', 'localhost'),
            )
    app = Cascade([StaticURLParser(os.path.join(app_ctx.conf['app_dir'], 'static')), app])
    app.ctx = app_ctx
    return app