from decimal import Decimal
import os
import sys

import django
import dj_database_url
import saml2
import saml2.saml

from datetime import date, datetime, timedelta
import pytz

from dataclasses import dataclass

PROJECT_ROOT = os.path.abspath(os.path.join(os.path.dirname(__file__), os.pardir))
PACKAGE_ROOT = os.path.abspath(os.path.dirname(__file__))
DJANGO_ROOT = os.path.abspath(os.path.dirname(django.__file__))
BASE_DIR = PACKAGE_ROOT
sys.path.append(os.path.join(PROJECT_ROOT, 'vendor'))


### USER SETTINGS
DEV_MODE = os.environ.get("SYMPOSION_DEV_MODE", None)
DEBUG = os.environ.get('SYMPOSION_APP_DEBUG', '0')
if isinstance(DEBUG, str):
    try:
        i = int(DEBUG)
        if not i in [0, 1]:
            raise ValueError("not 0 or 1")
        DEBUG = bool(i)
    except ValueError:
        sys.exit('DEBUG env var must be set to string value of a 0 or 1')
else:
    sys.exit('DEBUG env var is in unexpected format.  Should be a string'
             'containing either a 0 or a 1 - Got type %s' % type(DEBUG))

DATABASES = {}
DATABASES['default'] = dj_database_url.config(conn_max_age=600)
if DATABASES['default']['ENGINE'] == 'django.db.backends.mysql':
    DATABASES['default']['OPTIONS'] = {'charset': 'utf8mb4'}

EMAIL_BACKEND = 'django.core.mail.backends.smtp.EmailBackend'
EMAIL_HOST = os.environ.get('EMAIL_HOST', None)
EMAIL_PORT = os.environ.get('EMAIL_PORT', 25)
EMAIL_HOST_USER = os.environ.get('EMAIL_HOST_USER', None)
EMAIL_HOST_PASSWORD = os.environ.get('EMAIL_HOST_PASSWORD', None)
DEFAULT_FROM_EMAIL = os.environ.get('DEFAULT_FROM_EMAIL', 'webmaster@localhost')
EMAIL_USE_SSL = False
EMAIL_USE_TLS = False
_EMAIL_SSL_FLAVOR=os.environ.get('EMAIL_SSL_FLAVOR', None)
if _EMAIL_SSL_FLAVOR == "TLS":
    EMAIL_USE_TLS = True
elif _EMAIL_SSL_FLAVOR == "SSL":
    EMAIL_USE_SSL = True

SECRET_KEY = os.environ.get('DJANGO_SECRET_KEY', None)

PINAX_STRIPE_PUBLIC_KEY = os.environ.get('STRIPE_PUBLIC_KEY', None)
PINAX_STRIPE_SECRET_KEY = os.environ.get('STRIPE_SECRET_KEY', None)
PINAX_STRIPE_SEND_EMAIL_RECEIPTS = False

ANALYTICS_KEY = os.environ.get('ANALYTICS_KEY', None)

saml2_entityid = os.environ.get('SAML2_ENTITYID', None)
saml2_sp_name = os.environ.get('SAML2_SP_NAME', None)
saml2_sp_assertion_service = os.environ.get('SAML2_SP_ASSERTION_SERVICE', None)
saml2_sp_slo_rdir = os.environ.get('SAML2_SP_SLO_RDIR', None)
saml2_sp_slo_post = os.environ.get('SAML2_SP_SLO_POST', None)

saml2_idp_metadata = {
    'local': [os.environ.get('SAML2_IDP_METADATA_FILE', None)],
    }
saml2_signing_key = os.environ.get('SAML2_SIGNING_KEY', None)
saml2_signing_crt = os.environ.get('SAML2_SIGNING_CRT', None)
saml2_encr_key = os.environ.get('SAML2_ENCRYPTION_KEY', None)
saml2_encr_crt = os.environ.get('SAML2_ENCRYPTION_CRT', None)
saml2_contact = {
    'given_name': os.environ.get("META_GIVEN_NAME", 'Bastard'),
    'sur_name': os.environ.get('META_FAM_NAME', 'Operator'),
    'company': os.environ.get('META_COMPANY', 'Corp1'),
    'email_address': os.environ.get('META_EMAIL', 'op@example.com'),
    'contact_type': 'technical'},

fail = False

BADGER_DEFAULT_SVG = 'registrasion/badge.svg'
BADGER_DEFAULT_FORM = "registrasion/badge_form.html"

if SECRET_KEY is None:
    print("FAILURE: You need to supply a DJANGO_SECRET_KEY "
          "environment variable")
    fail = True

if PINAX_STRIPE_PUBLIC_KEY is None:
    print("FAILURE: You need to supply a STRIPE_PUBLIC_KEY "
          "environment variable")
    fail = True

if PINAX_STRIPE_SECRET_KEY is None:
    print("FAILURE: You need to supply a STRIPE_SECRET_KEY "
          "environment variable")
    fail = True

if fail:
    sys.exit('FAILURE: Missing environment variables.')

### Standard settings

ADMIN_USERNAMES = []

if DEV_MODE and DEV_MODE == "LAPTOP":
    CACHES = {
        'default': {
            'BACKEND': 'django.core.cache.backends.dummy.DummyCache',
        }
    }
else:
    CACHES = {
        'default': {
            'BACKEND': 'django.core.cache.backends.locmem.LocMemCache',
            'LOCATION': 'unique-snowflake',
        }
    }


ALLOWED_HOSTS = ['127.0.0.1', 'localhost', '*']

TIME_ZONE = "Australia/Melbourne"
DATE_FORMAT = "j F Y"
LANGUAGE_CODE = "en-au"

SITE_ID = int(os.environ.get("SITE_ID", 1))
USE_I18N = True
USE_L10N = True
USE_TZ = True

MEDIA_ROOT = os.environ.get("MEDIA_ROOT", os.path.join(PACKAGE_ROOT, "site_media", "media"))
MEDIA_URL = "/site_media/media/"

STATIC_ROOT = os.path.join(PROJECT_ROOT, 'static', 'build')
STATIC_URL = '/static/build/'

STATICFILES_DIRS = [
    os.path.join(PROJECT_ROOT, 'static', 'src'),
]

STATICFILES_FINDERS = [
    "django.contrib.staticfiles.finders.FileSystemFinder",
    "django.contrib.staticfiles.finders.AppDirectoriesFinder",
    "sass_processor.finders.CssFinder",
]

TEMPLATES = [
    {
        "BACKEND": "django.template.backends.django.DjangoTemplates",
        "DIRS": [
            os.path.join(PACKAGE_ROOT, "templates"),
            os.path.join(DJANGO_ROOT, 'forms/templates')
        ],
        "APP_DIRS": True,
        "OPTIONS": {
            "debug": DEBUG,
            "context_processors": [
                "django.contrib.auth.context_processors.auth",
                "django.template.context_processors.debug",
                "django.template.context_processors.i18n",
                "django.template.context_processors.media",
                "django.template.context_processors.static",
                "django.template.context_processors.tz",
                "django.template.context_processors.request",
                "django.contrib.messages.context_processors.messages",
                "pinax_theme_bootstrap.context_processors.theme",
                "symposion.reviews.context_processors.reviews",
                "django_settings_export.settings_export",
            ],
        },
    },
]

MIDDLEWARE = [
    "whitenoise.middleware.WhiteNoiseMiddleware",
    "django.contrib.sessions.middleware.SessionMiddleware",
    "django.middleware.common.CommonMiddleware",
    "django.middleware.csrf.CsrfViewMiddleware",
    "django.contrib.auth.middleware.AuthenticationMiddleware",
    "djangosaml2.middleware.SamlSessionMiddleware",
    "django.contrib.messages.middleware.MessageMiddleware",
    "debug_toolbar.middleware.DebugToolbarMiddleware",
    "reversion.middleware.RevisionMiddleware",
    "waffle.middleware.WaffleMiddleware",
    "django.middleware.clickjacking.XFrameOptionsMiddleware",
    "django.contrib.flatpages.middleware.FlatpageFallbackMiddleware",
    'pinaxcon.monkey_patch.MonkeyPatchMiddleware',
]

if DEV_MODE and DEV_MODE == "LAPTOP":
    ROOT_URLCONF = "pinaxcon.devmode_urls"
else:
    ROOT_URLCONF = "pinaxcon.urls"

# Python dotted path to the WSGI application used by Django's runserver.
WSGI_APPLICATION = "pinaxcon.wsgi.application"

INSTALLED_APPS = [
    "whitenoise.runserver_nostatic",
    "django.contrib.admin",
    "django.contrib.auth",
    "django.contrib.contenttypes",
    "django.contrib.flatpages",
    "django.contrib.messages",
    "django.contrib.sessions",
    "django.contrib.sites",
    "django.contrib.staticfiles",
    "django.contrib.humanize",
    "debug_toolbar",

    'djangosaml2',

    # theme
    "bootstrapform",
    "pinax_theme_bootstrap",
    "sass_processor",
    "capture_tag",

    # external
    "easy_thumbnails",
    "taggit",
    "reversion",
    "sitetree",
    "django_jsonfield_backport",
    "pinax.eventlog",

    # symposion
    "symposion",
    "symposion.conference",
    "symposion.proposals",
    "symposion.reviews",
    "symposion.schedule",
    "symposion.speakers",
    "symposion.teams",

    # Registrasion
    "registrasion",

    # Registrasion-stripe
    "pinax.stripe",
    "django_countries",
    "registripe",

    #registrasion-desk
    "regidesk",

    # admin - required by registrasion ??
    "nested_admin",

    # project
    "pinaxcon",
    "pinaxcon.proposals",
    "pinaxcon.registrasion",
    "pinaxcon.raffle",
    "jquery",
    "djangoformsetjs",

    # testing and rollout
    "django_nose",
    "waffle",

    "crispy_forms",
]

CRISPY_TEMPLATE_PACK = "bootstrap4"

DEBUG_TOOLBAR_PANELS = [
    'debug_toolbar.panels.versions.VersionsPanel',
    'debug_toolbar.panels.timer.TimerPanel',
    'debug_toolbar.panels.settings.SettingsPanel',
    'debug_toolbar.panels.headers.HeadersPanel',
    'debug_toolbar.panels.request.RequestPanel',
    'debug_toolbar.panels.sql.SQLPanel',
    'debug_toolbar.panels.staticfiles.StaticFilesPanel',
    'debug_toolbar.panels.cache.CachePanel',
    'debug_toolbar.panels.signals.SignalsPanel',
    'debug_toolbar.panels.logging.LoggingPanel',
    'debug_toolbar.panels.templates.TemplatesPanel',
    'debug_toolbar.panels.redirects.RedirectsPanel',
]

DEBUG_TOOLBAR_CONFIG = {
    'INTERCEPT_REDIRECTS': False,
}

INTERNAL_IPS = [
    '127.0.0.1',
]

from debug_toolbar.panels.logging import collector
LOGGING = {
    'version': 1,
    'disable_existing_loggers': False,
    'formatters': {
        'verbose': {
            'format': '%(levelname)s %(asctime)s %(module)s %(process)d %(thread)d %(message)s'
        },
        'simple': {
            'format': '%(asctime)s %(levelname)s $(module)s %(message)s'
        },
    },
    'filters': {
        'require_debug_false': {
            '()': 'django.utils.log.RequireDebugFalse'
        }
    },
    'handlers': {
        'console': {
            'level': 'DEBUG',
            'class': 'logging.StreamHandler',
            'formatter': 'simple'
        },
        'mail_admins': {
            'level': 'ERROR',
            'filters': ['require_debug_false'],
            'class': 'django.utils.log.AdminEmailHandler',
            'include_html': True,
        },
        'djdt_log': {
            'level': 'DEBUG',
            'class': 'debug_toolbar.panels.logging.ThreadTrackingHandler',
            'collector': collector,
        },
    },
    'loggers': {
        'django.request': {
            'handlers': ['mail_admins'],
            'level': 'DEBUG',
            'propagate': True,
        },
        'symposion.request': {
            'handlers': ['mail_admins'],
            'level': 'DEBUG',
            'propagate': True,
        },
    },
    'root': {
        'handlers': ['console', 'djdt_log'],
        'level': 'DEBUG'
    },
}
FIXTURE_DIRS = [
    os.path.join(PROJECT_ROOT, "fixtures"),
]

AUTHENTICATION_BACKENDS = [
    'symposion.teams.backends.TeamPermissionsBackend',
    'django.contrib.auth.backends.ModelBackend',
    'djangosaml2.backends.Saml2Backend',
]

LOGIN_URL = '/saml2/login/'
SESSION_EXPIRE_AT_BROWSER_CLOSE = True

CONFERENCE_ID = 1
PROPOSAL_FORMS = {
    "talk": "pinaxcon.proposals.forms.TalkProposalForm",
    "tutorial": "pinaxcon.proposals.forms.TutorialProposalForm",
    "miniconf": "pinaxcon.proposals.forms.MiniconfProposalForm",
    ### LCA2021 Miniconfs
    "glam-miniconf": "pinaxcon.proposals.forms.GlamProposalForm",
    "kernel-miniconf": "pinaxcon.proposals.forms.KernelProposalForm",
    "open-hardware-miniconf": "pinaxcon.proposals.forms.OpenHardwareProposalForm",
    "sysadmin-miniconf": "pinaxcon.proposals.forms.SysAdminProposalForm",
}
MAIN_CONFERENCE_PROPOSAL_KINDS = ("Talk", "Miniconf")

# Registrasion bits:
ATTENDEE_PROFILE_MODEL = "pinaxcon.registrasion.models.AttendeeProfile"
ATTENDEE_PROFILE_FORM = "pinaxcon.registrasion.forms.ProfileForm"
INVOICE_CURRENCY = "AUD"
GST_RATE =  Decimal('0.1')
TICKET_PRODUCT_CATEGORY = 1
TERMS_PRODUCT_CATEGORY = 2
ATTENDEE_PROFILE_FORM = "pinaxcon.registrasion.forms.ProfileForm"

#REGIDESK
REGIDESK_BOARDING_GROUP = "Ready For Boarding"

# CSRF custom error screen
CSRF_FAILURE_VIEW = "pinaxcon.csrf_view.csrf_failure"

# Use nose to run all tests
TEST_RUNNER = 'django_nose.NoseTestSuiteRunner'

# Tell nose to measure coverage on the 'foo' and 'bar' apps
NOSE_ARGS = [
    '--with-coverage',
    '--cover-package=registrasion.controllers,registrasion.models',
]

SASS_PROCESSOR_INCLUDE_DIRS = [
    os.path.join(PROJECT_ROOT, 'static/src/bootstrap/scss'),
    os.path.join(PROJECT_ROOT, 'static/src/scss'),
]

xmlsec_binary = '/usr/bin/xmlsec1'
if not os.path.isfile(xmlsec_binary):
        sys.exit('ERROR: xmlsec1 binary missing, EXITING')

SAML_ATTRIBUTE_MAPPING = {
    'uid': ('username', ),
    'mail': ('email', ),
    'givenName': ('first_name', ),
    'sn': ('last_name', ),
}
SAML_CONFIG = {
    'xmlsec_binary': xmlsec_binary,
    'entityid': saml2_entityid,
    'attribute_map_dir': os.path.join(PACKAGE_ROOT, 'saml2/attribute-maps'),
    'service': {
        'sp': {
            'name': saml2_sp_name,
            'endpoints': {
                'assertion_consumer_service': [
                    saml2_sp_assertion_service,
                    ],
                'single_logout_service': [
                    (saml2_sp_slo_rdir, saml2.BINDING_HTTP_REDIRECT),
                    (saml2_sp_slo_post, saml2.BINDING_HTTP_POST),
                    ],
                },
            'logout_requests_signed': True,
            'required_attributes': ['uid', 'mail', 'givenName', 'sn'],
            },
        },
    'metadata': saml2_idp_metadata,
    'debug': 0,
    'key_file': saml2_signing_key,
    'cert_file': saml2_signing_crt,
    'encryption_keypairs': [{
        'key_file': saml2_encr_key,
        'cert_file': saml2_encr_crt,
    }],
    'contact_person': saml2_contact,
    'valid_for': 10,
}

if 'SAML_CONFIG_LOADER' in os.environ:
    SAML_CONFIG_LOADER = os.environ.get('SAML_CONFIG_LOADER')

DEFAULT_FILE_STORAGE = os.environ.get('DEFAULT_FILE_STORAGE', 'gapc_storage.storage.GoogleCloudStorage')
GAPC_STORAGE = {
    'num_retries': 2,
}

SETTINGS_EXPORT = [
    'DEBUG',
    'ANALYTICS_KEY',
    'TIME_ZONE',
    'LCA_START',
]

if DEV_MODE and DEV_MODE == "LAPTOP":
    print("ENABLING LAPTOP MODE")
    from .devmode_settings import *


class Category(object):
    tickets = []

    @classmethod
    def order(cls, ticket) -> int:
        return (cls.tickets.index(ticket) + 1) * 10


@dataclass(frozen=True)
class Ticket:
    name: str
    regular_price: Decimal
    earlybird_price: Decimal

    def earlybird_discount(self):
        return self.regular_price - self.earlybird_price


@dataclass(frozen=True)
class DinnerTicket:
    name: str
    price: Decimal
    description: str
    reservation: timedelta
    cat: Category

    def order(self):
        return self.cat.order(self)


class PenguinDinnerTicket(DinnerTicket):
    pass


class SpeakersDinnerTicket(DinnerTicket):
    pass


class SpeakersDinnerCat(Category):
    @classmethod
    def create(cls, name: str, price: Decimal, description: str, reservation: timedelta) -> SpeakersDinnerTicket:
        t = SpeakersDinnerTicket(name, price, description, reservation, cls)
        cls.tickets.append(t)
        return t


class PenguinDinnerCat(Category):
    @classmethod
    def create(cls, name: str, price: Decimal, description: str, reservation: timedelta) -> PenguinDinnerTicket:
        t = PenguinDinnerTicket(name, price, description, reservation, cls)
        cls.tickets.append(t)
        return t


LCA_TZINFO = pytz.timezone(TIME_ZONE)
LCA_START = LCA_TZINFO.localize(datetime(2021, 1, 23))
LCA_END = LCA_TZINFO.localize(datetime(2021, 1, 25))
LCA_MINICONF_END = LCA_TZINFO.localize(datetime(2021, 1, 23, 23, 59))
EARLY_BIRD_DEADLINE = LCA_TZINFO.localize(datetime(2020, 12, 1))
PENGUIN_DINNER_TICKET_DATE = date(2021, 1, 23)
SPEAKER_DINNER_TICKET_DATE = date(2021, 1, 25)
PDNS_TICKET_DATE = date(2021, 1, 24)

TSHIRT_PRICE = Decimal("25.00")

CONTRIBUTOR = Ticket("Contributor", Decimal("300.00"), Decimal("250.00"))
PROFESSIONAL = Ticket("Professional", Decimal("125.00"), Decimal("100.00"))
HOBBYIST = Ticket("Hobbyist", Decimal("70.00"), None)
STUDENT = Ticket("Student", Decimal("30.00"), None)
MINICONF_ONLY = Ticket("Miniconf Only", Decimal("25.00"), None)

MEDIA = Ticket("Media", Decimal("0.0"), None)
SPEAKER = Ticket("Speaker", Decimal("0.0"), None)
SPONSOR = Ticket("Sponsor", Decimal("0.0"), None)

CONFERENCE_ORG = Ticket("Conference Organiser", Decimal("0.0"), None)
CONFERENCE_VOL = Ticket("Conference Volunteer", Decimal("0.0"), None)

PENGUIN_DINNER = PenguinDinnerCat
PENGUIN_DINNER_ADULT = PenguinDinnerCat.create(
    "Adult", Decimal("95.00"),
    "Includes an adult's meal and full beverage service.",
    timedelta(hours=1))
PENGUIN_DINNER_CHILD = PenguinDinnerCat.create(
    "Child", Decimal("50.00"),
    "Children 14 and under. "
    "Includes a child's meal and soft drink service.",
    timedelta(hours=1))
PENGUIN_DINNER_INFANT = PenguinDinnerCat.create(
    "Infant", Decimal("0.0"),
    "Includes no food or beverage service.",
    timedelta(hours=1))

SPEAKERS_DINNER = SpeakersDinnerCat

SPEAKERS_DINNER_ADULT = SpeakersDinnerCat.create(
    "Adult", Decimal("100.00"),
    "Includes an adult's meal and full beverage service.",
    timedelta(hours=1))

# SPEAKERS_DINNER_CHILD = SpeakersDinnerCat.create(
#     "Child", Decimal("60.00"),
#     "Children 14 and under. "
#     "Includes a child's meal and soft drink service.",
#     timedelta(hours=1))

# SPEAKERS_DINNER_INFANT = SpeakersDinnerCat.create(
#     "Infant", Decimal("00.00"),
#     "Infant must be seated in an adult's lap. "
#     "No food or beverage service.",
#     timedelta(hours=1))


# Venueless integration
VENUELESS_URL = os.environ.get('VENUELESS_URL', None)
VENUELESS_AUDIENCE = os.environ.get('VENUELESS_AUDIENCE', "venueless")
VENUELESS_TOKEN_ISSUER = os.environ.get('VENUELESS_TOKEN_ISSUER', "any")
VENUELESS_SECRET = os.environ.get('VENUELESS_SECRET', SECRET_KEY)