#!/usr/bin/python
#
# Copyright (C) 2013 Ipsilon project Contributors, for license see COPYING

import sys
sys.stdout = sys.stderr
import glob
import os
import atexit
import cherrypy
from ipsilon.util.data import AdminStore
from ipsilon.util import page
from ipsilon.root import Root
from jinja2 import Environment, FileSystemLoader, ChoiceLoader
import ipsilon.util.sessions


def nuke_session_locks():
    if cherrypy.config['tools.sessions.on']:
        try:
            sessdir = cherrypy.config['tools.sessions.storage_path']
            for l in glob.glob(os.path.join(sessdir, '*.lock')):
                try:
                    os.remove(l)
                except Exception:  # pylint: disable=broad-except
                    pass
        except Exception:  # pylint: disable=broad-except
            pass

cfgfile = None
if (len(sys.argv) > 1):
    cfgfile = sys.argv[-1]
elif os.path.isfile('ipsilon.conf'):
    cfgfile = 'ipsilon.conf'
elif os.path.isfile('/etc/ipsilon/ipsilon.conf'):
    cfgfile = '/etc/ipsilon/ipsilon.conf'
else:
    raise IOError("Configuration file not found")

cherrypy.lib.sessions.SqlSession = ipsilon.util.sessions.SqlSession
cherrypy.config.update(cfgfile)

nuke_session_locks()

datastore = AdminStore()
admin_config = datastore.load_config()
for option in admin_config:
    cherrypy.config[option] = admin_config[option]

template_loaders = []
default_template_dir = 'templates'
template_dir = cherrypy.config.get('template_dir', default_template_dir)
if template_dir.startswith('/'):
    template_loaders.append(FileSystemLoader(template_dir))
else:
    template_loaders.append(FileSystemLoader(
        os.path.join(cherrypy.config['base.dir'],
                     template_dir)))
# Fall-back to the default templates
template_loaders.append(FileSystemLoader(
    os.path.join(cherrypy.config['base.dir'],
                 default_template_dir)))
template_env = Environment(loader=ChoiceLoader(template_loaders))

if __name__ == "__main__":
    conf = {'/': {'tools.staticdir.root': os.getcwd()},
            '/ui': {'tools.staticdir.on': True,
                    'tools.staticdir.dir': 'ui'}}
    cherrypy.quickstart(Root('default', template_env),
                        cherrypy.config['base.mount'], conf)

else:
    cherrypy.config['environment'] = 'embedded'

    if cherrypy.__version__.startswith('3.0') and cherrypy.engine.state == 0:
        cherrypy.engine.start(blocking=False)
        atexit.register(cherrypy.engine.stop)

    application = cherrypy.Application(Root('default', template_env),
                                       script_name=None, config=None)