import os
import json
from urlparse import urlparse


def update(data):
    conf = read()
    conf.update(data)
    return save(data)


def read():
    conf = dict()

    for k, v in os.environ.items():
        if k.startswith('REALMS_'):
            conf[k[7:]] = v

    for loc in os.curdir, os.path.expanduser("~"), "/etc/realms-wiki", os.environ.get("REALMS_WIKI_CONF"):
        try:
            if not loc:
                continue
            with open(os.path.join(loc, "realms-wiki.json")) as f:
                conf.update(json.load(f))
            break
        except IOError:
            pass

    for k in ['APP_PATH', 'USER_HOME']:
        if k in conf:
            del conf[k]

    return conf


def save(conf):
    for loc in "/etc/realms-wiki", os.path.expanduser("~"), os.curdir:
        try:
            with open(os.path.join(loc, 'realms-wiki.json'), 'w') as f:
                f.write(json.dumps(conf, sort_keys=True, indent=4, separators=(',', ': ')).strip() + '\n')
                return os.path.join(loc, 'realms-wiki.json')
        except IOError:
            pass

APP_PATH = os.path.abspath(os.path.dirname(__file__) + "/../..")
USER_HOME = os.path.abspath(os.path.expanduser("~"))

# Best to change to /var/run
PIDFILE = "/tmp/realms-wiki.pid"

ENV = 'DEV'

DEBUG = True
ASSETS_DEBUG = True
SQLALCHEMY_ECHO = False

PORT = 5000
BASE_URL = 'http://localhost'
SITE_TITLE = "Realms"

# https://pythonhosted.org/Flask-SQLAlchemy/config.html#connection-uri-format
DB_URI = 'sqlite:////tmp/wiki.db'
# DB_URI = 'mysql://scott:tiger@localhost/mydatabase'
# DB_URI = 'postgresql://scott:tiger@localhost/mydatabase'
# DB_URI = 'oracle://scott:tiger@127.0.0.1:1521/sidname'

CACHE_TYPE = 'simple'

# Redis
#CACHE_TYPE = 'redis'
CACHE_REDIS_HOST = '127.0.0.1'
CACHE_REDIS_PORT = 6379
CACHE_REDIS_DB = '0'

# Memcached
#CACHE_TYPE = 'memcached'
CACHE_MEMCACHED_SERVERS = ['127.0.0.1:11211']

# Get ReCaptcha Keys for your domain here:
# https://www.google.com/recaptcha/admin#whyrecaptcha
RECAPTCHA_ENABLE = False
RECAPTCHA_USE_SSL = False
RECAPTCHA_PUBLIC_KEY = "6LfYbPkSAAAAAB4a2lG2Y_Yjik7MG9l4TDzyKUao"
RECAPTCHA_PRIVATE_KEY = "6LfYbPkSAAAAAG-KlkwjZ8JLWgwc9T0ytkN7lWRE"
RECAPTCHA_OPTIONS = {}

SECRET_KEY = 'CHANGE_ME'

# Path on file system where wiki data will reside
WIKI_PATH = '/tmp/wiki'

# Name of page that will act as home
WIKI_HOME = 'home'

ALLOW_ANON = True
REGISTRATION_ENABLED = True

# Used by Flask-Login
LOGIN_DISABLED = ALLOW_ANON

# None, firepad, and/or togetherjs
COLLABORATION = 'togetherjs'

# Required for firepad
FIREBASE_HOSTNAME = None

# Page names that can't be modified
WIKI_LOCKED_PAGES = []
# Depreciated variable name
LOCKED = WIKI_LOCKED_PAGES

ROOT_ENDPOINT = 'wiki.page'

globals().update(read())

if BASE_URL.endswith('/'):
    BASE_URL = BASE_URL[-1]

SQLALCHEMY_DATABASE_URI = DB_URI

_url = urlparse(BASE_URL)
RELATIVE_PATH = _url.path

if ENV != "DEV":
    DEBUG = False
    ASSETS_DEBUG = False
    SQLALCHEMY_ECHO = False

MODULES = ['wiki', 'auth']