"""Pylons environment configuration"""

from mako.lookup import TemplateLookup

from pylons.configuration import PylonsConfig

from pylons.error import handle_mako_error

from pylons_app.config.routing import make_map

from pylons_app.lib.utils import repo2db_mapper

from pylons_app.model import init_model

from pylons_app.model.hg_model import _get_repos_cached_initial

from sqlalchemy import engine_from_config

import logging

import os

import pylons_app.lib.app_globals as app_globals

import pylons_app.lib.helpers

log = logging.getLogger(__name__)

def load_environment(global_conf, app_conf):

    """Configure the Pylons environment via the ``pylons.config``

    object

    """

    config = PylonsConfig()

    # Pylons paths

    root = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))

    paths = dict(root=root,

                 controllers=os.path.join(root, 'controllers'),

                 static_files=os.path.join(root, 'public'),

                 templates=[os.path.join(root, 'templates')])

    # Initialize config with the basic options

    config.init_app(global_conf, app_conf, package='pylons_app', paths=paths)

    config['routes.map'] = make_map(config)

    config['pylons.app_globals'] = app_globals.Globals(config)

    config['pylons.h'] = pylons_app.lib.helpers

    # Setup cache object as early as possible

    import pylons

    pylons.cache._push_object(config['pylons.app_globals'].cache)

    # Create the Mako TemplateLookup, with the default auto-escaping

    config['pylons.app_globals'].mako_lookup = TemplateLookup(

        directories=paths['templates'],

        error_handler=handle_mako_error,

        module_directory=os.path.join(app_conf['cache_dir'], 'templates'),

        input_encoding='utf-8', default_filters=['escape'],

        imports=['from webhelpers.html import escape'])

    #sets the c attribute access when don't existing attribute are accessed

    config['pylons.strict_tmpl_context'] = True

    #MULTIPLE DB configs

    # Setup the SQLAlchemy database engine

    if config['debug']:

        #use query time debugging.

        from pylons_app.lib.timerproxy import TimerProxy

        sa_engine_db1 = engine_from_config(config, 'sqlalchemy.db1.',

                                                            proxy=TimerProxy())

    else:

        sa_engine_db1 = engine_from_config(config, 'sqlalchemy.db1.')

    init_model(sa_engine_db1)

    repo2db_mapper(_get_repos_cached_initial(config['pylons.app_globals']))

    set_available_permissions(config)

    # CONFIGURATION OPTIONS HERE (note: all config options will override

    # any Pylons config options)

    return config

"""Pylons middleware initialization"""

from beaker.middleware import SessionMiddleware

from paste.cascade import Cascade

from paste.registry import RegistryManager

from paste.urlparser import StaticURLParser

from paste.deploy.converters import asbool

from pylons.middleware import ErrorHandler, StatusCodeRedirect

from pylons.wsgiapp import PylonsApp

from routes.middleware import RoutesMiddleware

from pylons_app.lib.middleware.simplehg import SimpleHg

from pylons_app.lib.middleware.https_fixup import HttpsFixup

from pylons_app.config.environment import load_environment

def make_app(global_conf, full_stack=True, static_files=True, **app_conf):

    """Create a Pylons WSGI application and return it

    ``global_conf``

        The inherited configuration for this application. Normally from

        the [DEFAULT] section of the Paste ini file.

    ``full_stack``

        Whether or not this application provides a full WSGI stack (by

        default, meaning it handles its own exceptions and errors).

        Disable full_stack when this application is "managed" by

        another WSGI middleware.

    ``app_conf``

        The application's local configuration. Normally specified in

        the [app:<name>] section of the Paste ini file (where <name>

        defaults to main).

    """

    # Configure the Pylons environment

    config = load_environment(global_conf, app_conf)

    # The Pylons WSGI app

    app = PylonsApp(config=config)

    # Routing/Session/Cache Middleware

    app = RoutesMiddleware(app, config['routes.map'])

    app = SessionMiddleware(app, config)

    # CUSTOM MIDDLEWARE HERE (filtered by error handling middlewares)

    #set the https based on HTTP_X_URL_SCHEME

    app = SimpleHg(app, config)

    if asbool(full_stack):

        # Handle Python exceptions

        app = ErrorHandler(app, global_conf, **config['pylons.errorware'])

        # Display error documents for 401, 403, 404 status codes (and

        # 500 when debug is disabled)

        if asbool(config['debug']):

            app = StatusCodeRedirect(app)

        else:

            app = StatusCodeRedirect(app, [400, 401, 403, 404, 500])

    #enable https redirets based on HTTP_X_URL_SCHEME set by proxy

    app = HttpsFixup(app)

    # Establish the Registry for this application

    app = RegistryManager(app)

    if asbool(static_files):

        # Serve static files

        static_app = StaticURLParser(config['pylons.paths']['static_files'])

        app = Cascade([static_app, app])

    app.config = config

    return app