#! /usr/bin/python

import cgi, mc, os, textwrap, random
import cgitb; cgitb.enable()

def kon() :
	print 'Connection: close\r\n',
	print 'Cache-Control: no-cache, must-revalidate\r\n',
	print 'Expires: Mon, 31 Oct 2005 00:00:00 GMT\r\n',
	print 'Content-type: text/html;charset=UTF-8\r\n',
	print ''

def gid(lista, ilosc=10) :
	id = ''	
	l  = []
	for i in range(ilosc) : 
		while 1 :
			los = random.randrange(len(lista))
			if not los in l : 
				l += [l]
				break 
		id += str(los) + 'x'
	return id[:-1]

form = cgi.FieldStorage()
try :
	id  = form['id'].value.strip()
	st  = int(form['st'].value.strip())
except :  
	kon()
	print "Error!"

kon()
#print id
#print st

tekst = ''
gen = ''
kat_w = './w/'
w = os.listdir(kat_w)
w.sort()
kat_g = './g/'
try :
	gen = open(kat_g + id + '.txt').read()
except :
	for i in id.split('x') :
		i = int(i)
		tekst += open(kat_w + w[i], 'r').read()
	gen = textwrap.fill(mc.mark_v_shaney(tekst, int(15)), 80) 
	################################################################################
	#random.shuffle(w)
	gen = '<p>' + gen + '</p>'
	majki = '<p>' + str(st)
	for i in range(20) :
		majki += ' <a href="/c.cgi?id=' + gid(w) + '&st=' + str(i + 1 + st) + '">' + str(i + 1 + st) + '</a> '
	majki += '</p>'
	gen += majki
	################################################################################
	plik = open(kat_g + id + '.txt', 'w')
	print >> plik, gen
	plik.close()

tytul = ''
for c in gen :
	tytul += c
	if c == ' ' :
		if len(tytul) >= 25 : break

tytul = tytul.strip()
tytul = tytul.replace('<p>', '')
html = open('index.html', 'r').read()
html = html[ : html.find('<title>') + len('<title>')] + tytul + html[html.find('</title>') : ]
#print html
tytul += ' (...)'
html = html[ : html.find('<!--h1-->') + len('<!--h1-->')] + tytul + html[html.find('<!--h2-->') : ]
html = html[ : html.find('<!--x1-->') + len('<!--x1-->')] + gen + html[html.find('<!--x2-->') : ]
print html
#print gid(w)