#!/usr/bin/env python
# -*- coding: utf-8 -*-
# WWW-sovellukset TJTA270 Vt4 Taso 5
# http://appro.mit.jyu.fi/sovellukset/vt/vt4/
# (C) Esa-Matti Suuronen

"""
Simppeli mod_python-ohjelma joka konfiguroi CherryPyn ajettavaksi
mod_pythonin yli  users.jyu.fissa
"""

import os
import os.path

from mod_python import apache

RUN_DIR = "run"
RW_FILES_FOR_APACHE = [
                 'error.log',
                 'users.txt',
                 '__init__.py',
                 '.htaccess',
                 'kuvat.txt'
                 ]

RW_DIRS_FOR_APACHE = [
                 'kuvat',
                 'sessions',
                 ]




def handler(req):
    req.content_type = 'text/html'
    req.send_http_header()
    
    if os.path.basename(req.filename) != "install.py":
        req.write("<p>Please open install.py</p>")
        return apache.OK
    
    
    this_dir = os.path.abspath(os.path.dirname(__file__))
    

    for can_rw_this in RW_FILES_FOR_APACHE:
        filepath = os.path.join(this_dir, RUN_DIR, can_rw_this)
        open(filepath, "w").close()
        open(filepath, "r").close()
        os.chmod(filepath, 0666)

    for can_rw_this in RW_DIRS_FOR_APACHE:
        filepath = os.path.join(this_dir, RUN_DIR, can_rw_this)
        if not os.path.exists(filepath):
            os.mkdir(filepath)
        os.chmod(filepath, 0777)


    
    htaccess_content = """
SetHandler python-program
PythonHandler cherrypy._cpmodpy::handler
PythonOption cherrypy.setup c2mp::setup_server

PythonDebug On
PythonPath "['%s'] + sys.path"
""" % this_dir
    htaccess_file = open(os.path.join(this_dir, RUN_DIR, ".htaccess"), "w")
    htaccess_file.write(htaccess_content)
    htaccess_file.close()
    
    
    
    config_content = """
MOUNT_POINT = '%s'
ERROR_LOG = '%s'
PIC_DIR = '%s'
PIC_DB = '%s'
USER_DB = '%s'
SESSIONS_DIR = '%s'
""" % (os.path.join( os.path.dirname(req.uri), RUN_DIR), 
       os.path.join(this_dir, RUN_DIR, "error.log"),
       os.path.join(this_dir, RUN_DIR, "kuvat"),
       os.path.join(this_dir, RUN_DIR, "kuvat.txt"),
       os.path.join(this_dir, RUN_DIR, "users.txt"),
       os.path.join(this_dir, RUN_DIR, "sessions"),
       )
    config_file = open(os.path.join(this_dir, RUN_DIR, "__init__.py"), "w")
    config_file.write(config_content)
    config_file.close()
    
    req.write(
              "<h1>OK</h1>"
              "<h3>Wrote %s</h3>"
              "<pre>%s</pre>"
              "<h3>Wrote %s</h3>"
              "<pre>%s</pre>"
              "<h3>RW-able</h3>"
              "<p>%s</p>"              
              "<p><a href=\"%s\">continue</a></p>"
               % (
                  htaccess_file.name, 
                  htaccess_content, 
                  config_file.name, 
                  config_content,
                  str(RW_FILES_FOR_APACHE) + str(RW_DIRS_FOR_APACHE),
                  RUN_DIR                   
                  ))

    
    return apache.OK