#!/usr/bin/env python

#-----------------------------------------------------------------------
# scribbler.py - diary script
# Copyright (C) 2001 Andrei Kulakov <ak@silmarill.org>
# Licence: GPL (see http://www.gnu.org/copyleft/gpl.html)
#-----------------------------------------------------------------------
"""
Usage: scribbler.py         edit today's entry
       scribbler.py -b      browse entries
       scribbler.py -v      print version
       scribbler.py -h      this help message
"""

import sys, time, os, os.path, commands

__version__ = '0.5a'
editor = 'vim'
browser = 'lynx'
program_dir = os.path.expanduser('~/.scribbler')
conf_file = os.path.join(program_dir, "config")
last_fname = None

def browse():
    """Browse all entries"""
    if os.path.exists(m): dest = m
    elif os.path.exists(y): dest = y
    else: dest = program_dir
    os.system(browser + ' ' + dest)

def read_config():
    if os.path.exists(conf_file):
        f = open(conf_file)
        last_filename = f.read()
        return last_filename

def write_config(last_filename):
    f = open(conf_file, 'w')
    f.write(last_filename)

def edit_today_entry():
    """Edit today's diary entry"""
    if not os.path.exists(y):
        os.mkdir(y)
    if not os.path.exists(m):
        os.mkdir(m)
    last_fname = read_config()
    f = d
    if last_fname: 
        if last_fname.startswith(d[:-4]):
            f = last_fname
    if not os.path.exists(f):
        file = open(f, 'w')
        file.write('\t\t\t' + time.ctime() + '\n')
        file.close()
    os.system(editor + ' "' + f + '"')
    file = open(f, 'r')
    file.readline()
    name = file.readline().strip()
    file.close()
    if name:
        nf = d[:-4] + '-' + name + ".txt"
        os.rename(f, nf)
        write_config(nf)

def process_time(t):
    min, sec = t/60, t%60
    return '%2d:%02d' % (min, sec)

if not os.path.exists(program_dir):
    os.mkdir(program_dir)
if not commands.getoutput('which ' + editor):
    print 'Can not find editor:', editor
    print 'You can get vim at http://www.vim.org'
    print 'To use a different editor, change editor variable at the top of scribbler.py'
    sys.exit()
if not commands.getoutput('which ' + browser):
    print 'Can not find browser:', browser
    print 'You can get lynx at http://lynx.browser.org'
    print 'To use a different browser, change browser variable at the top of scribbler.py'
    sys.exit()
start = time.time()
year, month_num, day, _,_,_,_,_,_ = time.localtime()
month = time.ctime(time.time()).split()[1]
weekday = time.ctime().split()[0]
y = os.path.join(program_dir, str(year))
m = os.path.join(y, "%02d-%s" % (month_num, month))
d = os.path.join(m, "%02d-%s.txt" % (day, weekday))
if len(sys.argv) > 1:
    if sys.argv[1] == '-b':
        browse()
    elif sys.argv[1] == '-h':
        print __doc__
        sys.exit()
    elif sys.argv[1] == '-v':
        print 'Scribbler v' + __version__
        sys.exit()
    else:
        print 'Illegal argument! Try better next time.'
        sys.exit()
else: 
    edit_today_entry()
time_taken = time.time() - start
print process_time(time_taken)