#!/usr/bin/env python

import os, sys, argparse, shutil, subprocess
import getpass, time

from nnnotes import TEMPLATE_PATH

def yes_no(question):

	sys.stdout.write(question)

	yes = set(['yes','y', 'ye', ''])
	no = set(['no','n'])

	choice = raw_input().lower()
	if choice in yes:
	   return True
	elif choice in no:
	   return False
	else:
	   sys.stdout.write("Please respond with 'yes' or 'no'")

def check_note_exists(title):

	if os.path.isdir(title):
		q = yes_no('The note already exists in the current directory.\nDo you want to proceed and erase the current note? [y/n] ')
		if not q:
			sys.exit('Notes already exists. Aborting.')
		return True
	return False


if __name__ == '__main__':

	p = argparse.ArgumentParser()
	p.add_argument('-t', '--title', action="store", help="title of the note", required=True)
	p.add_argument('-f', '--file', action="store", help="(pdf) file to extract notes from")
	p.add_argument('-b', '--bibtex', action="store", help="bibtex file containing bibliographical information")
	p.add_argument('-i', '--bibtexitem', action="store", help="name of the item in the bibtex file")
	p.add_argument('-s', '--style', action="store", help="bibliographic style")

	args = p.parse_args()

	if not check_note_exists(args.title):
		# make directory for the note
		os.makedirs(args.title)

	# copy template files -- this needs to change....
	#home = os.path.dirname(os.path.realpath(__file__))
	os.system('cp -aR ' + TEMPLATE_PATH + '/* ' + args.title)

	os.chdir(args.title)

	# copy note file if it exists
	if args.file is not None and os.path.isfile(args.file):
		shutil.copy2(args.file, os.path.basename(args.file))

	# style
	style_arg = ''
	if args.style is not None:
		os.system('sed -i.bak "s#CSL\ :=#CSL\ := ' + args.style + '#g" Makefile')
		style_arg = '-s ' + args.style

	# bibtex item
	bibtexitem_arg = ''
	if args.bibtexitem is not None:
		bibtexitem_arg = '-i ' + args.bibtexitem

	# generate bibliographic element
	if args.bibtex is not None and os.path.isfile(args.bibtex):
		os.system('sed -i.bak "s#BIB\ :=#BIB\ := ' + args.bibtex + '#g" Makefile')
		ref = '> ' + subprocess.check_output('csl_unsorted ' + args.bibtex + ' ' + bibtexitem_arg + ' ' + style_arg + ' -f md', shell=True).rstrip()
		os.system('sed -i.bak "s~*MACHINE-REF*~' + ref + '~g ; s~%\ title~%\ ' + ref + '~g" notes.mmd')

	author = getpass.getuser()
	date = time.strftime("%d/%m/%Y")

	os.system('sed -i.bak "s~%\ author~%\ ' + author + '~g ; s~%\ date~%\ ' + date + '~g" notes.mmd')

	# cleanup
	os.system('rm *.bak')
	os.chdir('..')