import os

import logging
logger = logging.getLogger('Caldoz')

from App import config as zconfig
C = zconfig.getConfiguration().product_config.get('caldoz', {})
_marker = object()
STORE = C.get('store_location', _marker)

if STORE == _marker:
    logger.exception('Caldoz is not configured properly. See installation docs')
    raise 'Caldoz is not configured properly. See installation docs'

if not os.path.isdir(STORE):
    try:
        os.mkdir(STORE)
        logger.info('Created store directory: '+STORE)
    except OSError:
        logger.exception('Store does not exist!')
        raise 'Caldoz is not configured properly. Store does not exist!'

if not os.access(STORE, os.W_OK):
    logger.exception('Store is not writable!')
    raise 'Caldoz is not configured properly. Store is not writable!'

def storeZip(pid, file):
    """ stores a zip """
    p = os.path.join(STORE, pid)
    if not os.path.isdir(p):
        os.mkdir(p)
    fzip = os.path.join(p, 'original.zip')
    f = open(fzip, 'wb')
    f.write(file.read())
    f.close()

def getZipLocation(pid):
    return os.path.join(STORE, pid, 'original.zip')

def storeContent(pid, fid, content):
    """ stores a packagefile content """
    p = os.path.join(STORE, pid)
    if not os.path.isdir(p):
        os.mkdir(p)
    c = os.path.join(p, 'content')
    if not os.path.isdir(c):
        os.mkdir(c)
    f = open(os.path.join(c, fid), 'wb')
    f.write(content)
    f.close()

def getContent(pid, fid):
    """ retrieve a packagefile content """
    p = os.path.join(STORE, pid)
    if not os.path.isdir(p):
        os.mkdir(p)
    c = os.path.join(p, 'content')
    if not os.path.isdir(c):
        os.mkdir(c)
    f = open(os.path.join(c, fid), 'rb')
    content = f.read()
    f.close()
    return content

def clearContent(pid):
    """ remove all files from package/content directory """
    p = os.path.join(STORE, pid)
    if not os.path.isdir(p):
        os.mkdir(p)
        # it is propably clean already!
        return
    c = os.path.join(p, 'content')
    if not os.path.isdir(c):
        os.mkdir(c)
        # it is propably clean already!
        return
    for x in os.listdir(c):
        os.remove(os.path.join(c, x))