#
# import modules path
# 
import os, sys

try:
	import webnotes.defs
	m = getattr(webnotes.defs,'modules_path',None)
	m and sys.path.append(m)
except Exception,e:
	raise e

#
# map for identifying which field values come from files
#
code_fields_dict = {
	'Page':[('script', 'js'), ('content', 'html'), ('style', 'css'), ('static_content', 'html'), ('server_code', 'py')],
	'DocType':[('server_code_core', 'py'), ('client_script_core', 'js')],
	'Search Criteria':[('report_script', 'js'), ('server_script', 'py'), ('custom_query', 'sql')],
	'Patch':[('patch_code', 'py')],
	'Stylesheet':['stylesheet', 'css'],
	'Page Template':['template', 'html'],
	'Control Panel':[('startup_code', 'js'), ('startup_css', 'css')]
}

#
# globals
#
#: "v170" 
version = 'v170'
form_dict = {}
auth_obj = None

#: The database connection :class:`webnotes.db.Database` setup by :mod:`auth`
conn = None

#: The cgi.FieldStorage() object (Dictionary representing the formdata from the URL)
form = None

session = None
"""
   Global session dictionary.

   * session['user'] - Current user   
   * session['data'] - Returns a dictionary of the session cache
"""

user = None
is_testing = None
"""    Flag to identify if system is in :term:`Testing Mode` """

incoming_cookies = {}
add_cookies = {}
"""    Dictionary of additional cookies appended by custom code """

cookies = {}
auto_masters = {}
tenant_id = None

from webnotes.utils import cstr

#
# Custom Class (no traceback)
#
class ValidationError(Exception):
	pass

#
# HTTP standard response
#
response = {'message':'', 'exc':''}
"""
   The JSON response object. Default is::
   
   {'message':'', 'exc':''}
"""

#
# the logs
#
debug_log = []
"""    List of exceptions to be shown in the :term:`Error Console` """

message_log = []
"""    List of messages to be shown to the user in a popup box at the end of the request """

def getTraceback():
	import webnotes.utils
	return webnotes.utils.getTraceback()

def errprint(msg):
	"""
	   Append to the :data:`debug log`
	"""
	debug_log.append(cstr(msg or ''))

def msgprint(msg, small=0, raise_exception=0, as_table=False):
	"""
	   Append to the :data:`message_log`
	"""	
	if as_table and type(msg) in (list, tuple):
		msg = '<table border="1px" style="border-collapse: collapse" cellpadding="2px">' + ''.join(['<tr>'+''.join(['<td>%s</td>' % c for c in r])+'</tr>' for r in msg]) + '</table>'
	
	message_log.append((small and '__small:' or '')+cstr(msg or ''))
	if raise_exception:
		raise ValidationError

def is_apache_user():
	import os
	if os.environ.get('USER') == 'apache':
		return True 
	else:
		return (not os.environ.get('USER'))
		# os.environ does not have user, so allows a security vulnerability,fixed now. 

def get_index_path():
	import os
	return os.sep.join(os.path.dirname(os.path.abspath(__file__)).split(os.sep)[:-2])

def get_files_path():
	global conn
	import defs, os

	if not conn:
		raise Exception, 'You must login first'

	if defs.files_path:
		return os.path.join(defs.files_path, conn.cur_db_name)
	else:
		return os.path.join(get_index_path(), 'user_files', conn.cur_db_name)
	
def create_folder(path):
	"""
	Wrapper function for os.makedirs (does not throw exception if directory exists)
	"""
	import os
	
	try:
		os.makedirs(path)
	except Exception, e:
		if e.args[0]==17: 
			pass
		else: 
			raise e


def connect(db_name):
	"""
		Connect to this db (or db), if called from command prompt
	"""
	if is_apache_user():
		raise Exception, 'Not for web users!'

	import webnotes.db
	global conn
	conn = webnotes.db.Database(db_name=db_name)
	
	global session
	session = {'user':'Administrator'}
	
	import webnotes.profile
	global user
	user = webnotes.profile.Profile('Administrator')	


# Environment Variables
#-----------------------------------------------------------
def get_env_vars(env_var):
	return os.environ.get(env_var,'None')

remote_ip = get_env_vars('REMOTE_ADDR')		#Required for login from python shell

# Logging
# -----------------------------------------------------------

logger = None


def setup_logging():
	import logging
	import logging.handlers
	# Also please set umask for apache to 002.
	global logger

	try:
		logger = logging.getLogger('WNLogger')
		logger.setLevel(eval(defs.log_level))

		log_handler = logging.handlers.RotatingFileHandler(defs.log_file_name, maxBytes = defs.log_file_size, backupCount = defs.log_file_backup_count)	
		formatter = logging.Formatter('%(name)s - %(asctime)s - %(levelname)s\n%(message)s\n-------------------')
	
		log_handler.setFormatter(formatter)
		logger.addHandler(log_handler)
	
	except IOError,e:
		if e.args == 13:
			open(defs.log_file_name).close()


if getattr(defs, 'log_file_name', None):
	setup_logging()
	
def get_db_password(db_name):
	from webnotes import defs
	if hasattr(defs, 'get_db_password'):
		return defs.get_db_password(db_name)
		
	elif hasattr(defs, 'db_password'):
		return defs.db_password
		
	else:
		return db_name