# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
# MIT License. See license.txt

from __future__ import unicode_literals
import webnotes

# frequently used imports (used by other modules)
from webnotes.website.permissions import get_access
	
from webnotes.website.doctype.website_settings.website_settings import get_website_settings	
from webnotes.website.template import render_blocks
from webnotes.website.sitemap import get_sitemap_options
from webnotes.website.utils import can_cache

def get_context(path):
	context = None
	cache_key = "page_context:{}".format(path)
	
	# try from memcache
	if can_cache():
		context = webnotes.cache().get_value(cache_key)

	if not context:
		context = get_sitemap_options(path)

		# permission may be required for rendering
		context["access"] = get_access(context.pathname)

		context = build_context(context)

		if can_cache(context.no_cache):				
			webnotes.cache().set_value(cache_key, context)

	else:
		context["access"] = get_access(context.pathname)
		
	context.update(context.data or {})
	
	# TODO private pages
	
	return context
		
def build_context(sitemap_options):
	"""get_context method of bean or module is supposed to render content templates and push it into context"""
	context = webnotes._dict(sitemap_options)
	context.update(get_website_settings())
	
	# provide bean
	if context.doctype and context.docname:
		context.bean = webnotes.bean(context.doctype, context.docname)
	
	if context.controller:
		module = webnotes.get_module(context.controller)
		if module and hasattr(module, "get_context"):
			context.update(module.get_context(context) or {})
			
	if context.get("base_template_path") != context.get("template_path") and not context.get("rendered"):
		context.data = render_blocks(context)
	
	# remove bean, as it is not pickle friendly and its purpose is over
	if context.bean:
		del context["bean"]
	
	return context