#!/usr/bin/env python
"""
notes.py - Get Whits Notes
Author: Sean B. Palmer, inamidst.com
"""

import sys, os, re, glob

months = 'Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec'
r_spaces = re.compile(r'(?m)(^ |  +)')
r_link = re.compile(r'(?s)\{([^}]+)[ \t\r\n]([A-Za-z]+:[^}]+)\}')

def filenames(): 
   for year in sorted(glob.glob('2*'), reverse=True): 
      for month in reversed(months.split(' ')): 
         for fn in sorted(glob.glob(year + '/' + month + '*'), reverse=True): 
            yield fn

def hypertext(bytes): 
   bytes = bytes.rstrip('\r\n')
   bytes = bytes.replace('\r\n', '\n')
   bytes = bytes.replace('\r', '\n')
   bytes = bytes.replace('<', '&lt;')
   bytes = bytes.replace('>', '&gt;')
   bytes = r_link.sub(r'<a href="\g<2>">\g<1></a>', bytes)
   bytes = bytes.replace('\n', '<br>\n')
   bytes = bytes.replace('<br>\n<br>\n', '</p>\n\n<p>')
   bytes = r_spaces.sub(lambda m: '&#xA0;' * len(m.group(1)), bytes)
   return bytes

class Note: 
   def __init__(note, fn): 
      note.path = '/'.join(fn.split('/')[-2:])
      note.bytes = open(fn, 'rb').read()
      note.content = hypertext(note.bytes)

      year, month, day = note.path[:4], num[note.path[5:8]],  note.path[8:10]
      hour, minute, second = note.path[11:13], note.path[13:15], '00'
      note.updated = (year + '-' + month + '-' + day + 'T' + 
                      hour + ':' + minute + ':' + second + 'Z')
      note.cite = (ordinal(day) + ' ' + note.path[5:8] + ' ' + year + ' ' + 
                   hour + ':' + minute)

num = {
   'Jan': '01', 
   'Feb': '02', 
   'Mar': '03', 
   'Apr': '04', 
   'May': '05', 
   'Jun': '06', 
   'Jul': '07', 
   'Aug': '08', 
   'Sep': '09', 
   'Oct': '10', 
   'Nov': '11', 
   'Dec': '12'
}

def ordinal(num): 
   num = num.lstrip('0')
   if num.endswith('1') and (num != '11'): 
      return num + 'st'
   elif num.endswith('2') and (num != '12'): 
      return num + 'nd'
   elif num.endswith('3') and (num != '13'): 
      return num + 'rd'
   else: return num + 'th'

def notes(): 
   for i, fn in enumerate(filenames()): 
      if i >= 15: break
      note = Note(fn)
      yield note
      
if __name__ == '__main__': 
   main()