#!/usr/bin/env python2
import os
from datetime import datetime

import markdown

from verdandi.mixins.templatemixin import TemplateMixin
from verdandi.mixins.menuitemmixin import MenuItemMixin
from verdandi.mixins.fileassetsmixin import FileAssetsMixin
from verdandi.mixins.newsitemmixin import NewsItemMixin
from verdandi.mixins.metadatamixin import MetadataMixin
from verdandi.constants import CONTENT_DIRECTORY, MARKDOWN_EXTENSIONS

class Page(MenuItemMixin, NewsItemMixin, MetadataMixin, TemplateMixin, FileAssetsMixin):

	content_file = "content.md"
	content_is_markdown = True
	content_directory = CONTENT_DIRECTORY

	markdown_extensions = MARKDOWN_EXTENSIONS

	news_item_len = 10
	metadata_description_len = 10


	def process_message(self, message):
		if message == None:
			full_path = os.path.join(self.content_directory, self.content_file)
			self.content = self.read_content_file(full_path)

		other_messages = super(Page, self).process_message(message)

		return other_messages


	def get_news_item(self):
		lines = self.content['content'].split('\n')
		elipsized_content = '\n'.join(lines[0:self.news_item_len])

		item = {
			'title': self.content['title'],
			'content': elipsized_content,
			'creation_time': self.content['creation_time'],
			'edit_time': self.content['edit_time'],
			'url' : self.url
		}

		return item

	def get_metadata(self):
		markdown_converter = markdown.Markdown(extensions = self.markdown_extensions)

		metadata = super(Page, self).get_metadata()
		lines = self.content['content'].split('\n')
		elipsized_content = '\n'.join(lines[0:self.news_item_len])
		elipsized_content = markdown_converter.convert(elipsized_content)

		meta = {
			'url': "/%s" % self.url,
			'title': self.content['title'],
			'description' : elipsized_content
		}

		if 'image' in metadata:
			meta['image'] = "/%s" % metadata['image']

		return meta

	def get_context(self):
		context = super(Page,self).get_context()
		context['title'] = self.content['title']
		context['url'] = "/%s" % self.url

		context['content_creation_time'] = self.content['creation_time']
		context['content_edit_time'] =  self.content['edit_time']

		if self.content_is_markdown:
			markdown_converter = markdown.Markdown(extensions = self.markdown_extensions)
			markdown_source = self.content['content']
			context['content'] = markdown_converter.convert(markdown_source)
		else:
			context['content'] = self.content['content']

		return context