import json
import os

if os.environ.get('VCAP_APPLICATION'):
    # on cloudfoundry, config is a json blob in VCAP_APPLICATION - unpack it, and populate
    # standard environment variables from it
    from app.cloudfoundry_config import extract_cloudfoundry_config
    extract_cloudfoundry_config()


class Config(object):
    ADMIN_CLIENT_SECRET = os.environ.get('ADMIN_CLIENT_SECRET')
    API_HOST_NAME = os.environ.get('API_HOST_NAME', 'localhost')
    SECRET_KEY = os.environ.get('SECRET_KEY')
    DANGEROUS_SALT = os.environ.get('DANGEROUS_SALT')
    ZENDESK_API_KEY = os.environ.get('ZENDESK_API_KEY')

    # if we're not on cloudfoundry, we can get to this app from localhost. but on cloudfoundry its different
    ADMIN_BASE_URL = os.environ.get('ADMIN_BASE_URL', 'http://localhost:6012')

    TEMPLATE_PREVIEW_API_HOST = os.environ.get('TEMPLATE_PREVIEW_API_HOST', 'http://localhost:6013')
    TEMPLATE_PREVIEW_API_KEY = os.environ.get('TEMPLATE_PREVIEW_API_KEY', 'my-secret-key')

    # Logging
    DEBUG = False
    NOTIFY_LOG_PATH = os.environ.get('NOTIFY_LOG_PATH', 'application.log')

    ADMIN_CLIENT_USER_NAME = 'notify-admin'

    ANTIVIRUS_API_HOST = os.environ.get('ANTIVIRUS_API_HOST')
    ANTIVIRUS_API_KEY = os.environ.get('ANTIVIRUS_API_KEY')

    ASSETS_DEBUG = False
    AWS_REGION = os.environ.get('AWS_REGION')
    DEFAULT_SERVICE_LIMIT = 50

    EMAIL_EXPIRY_SECONDS = 3600  # 1 hour
    INVITATION_EXPIRY_SECONDS = 3600 * 24 * 2  # 2 days - also set on api
    EMAIL_2FA_EXPIRY_SECONDS = 1800  # 30 Minutes
    HEADER_COLOUR = '#81878b'  # mix(govuk-colour("dark-grey"), govuk-colour("mid-grey"))
    HTTP_PROTOCOL = 'http'
    NOTIFY_APP_NAME = 'admin'
    NOTIFY_LOG_LEVEL = os.environ.get('NOTIFY_LOG_LEVEL', 'DEBUG')
    PERMANENT_SESSION_LIFETIME = 20 * 60 * 60  # 20 hours
    SEND_FILE_MAX_AGE_DEFAULT = 365 * 24 * 60 * 60  # 1 year
    SESSION_COOKIE_HTTPONLY = True
    SESSION_COOKIE_NAME = 'notify_admin_session'
    SESSION_COOKIE_SECURE = True
    # don't send back the cookie if it hasn't been modified by the request. this means that the expiry time won't be
    # updated unless the session is changed - but it's generally refreshed by `save_service_or_org_after_request`
    # every time anyway, except for specific endpoints (png/pdfs generally) where we've disabled that handler.
    SESSION_REFRESH_EACH_REQUEST = False
    WTF_CSRF_ENABLED = True
    WTF_CSRF_TIME_LIMIT = None
    CSV_UPLOAD_BUCKET_NAME = 'local-notifications-csv-upload'
    CONTACT_LIST_UPLOAD_BUCKET_NAME = 'local-contact-list'
    ACTIVITY_STATS_LIMIT_DAYS = 7

    REPLY_TO_EMAIL_ADDRESS_VALIDATION_TIMEOUT = 45

    NOTIFY_ENVIRONMENT = 'development'
    LOGO_UPLOAD_BUCKET_NAME = 'public-logos-local'
    MOU_BUCKET_NAME = 'local-mou'
    TRANSIENT_UPLOADED_LETTERS = 'local-transient-uploaded-letters'
    ROUTE_SECRET_KEY_1 = os.environ.get('ROUTE_SECRET_KEY_1', 'dev-route-secret-key-1')
    ROUTE_SECRET_KEY_2 = os.environ.get('ROUTE_SECRET_KEY_2', 'dev-route-secret-key-2')
    CHECK_PROXY_HEADER = False
    ANTIVIRUS_ENABLED = True

    REDIS_URL = os.environ.get('REDIS_URL')
    REDIS_ENABLED = True
    
    BASIC_AUTH_USERNAME = os.environ.get('BASIC_AUTH_USERNAME')
    BASIC_AUTH_PASSWORD = os.environ.get('BASIC_AUTH_PASSWORD')
    BASIC_AUTH_FORCE = True

    ASSET_DOMAIN = ''
    ASSET_PATH = '/static/'

    # as defined in api db migration 0331_add_broadcast_org.py
    BROADCAST_ORGANISATION_ID = '38e4bf69-93b0-445d-acee-53ea53fe02df'

    NOTIFY_SERVICE_ID = 'd6aa2c68-a2d9-4437-ab19-3ae8eb202553'

    NOTIFY_BILLING_DETAILS = json.loads(
        os.environ.get('NOTIFY_BILLING_DETAILS') or 'null'
    ) or {
        'account_number': '98765432',
        'sort_code': '01-23-45',
        'IBAN': 'GB33BUKB20201555555555',
        'swift': 'ABCDEF12',
        'notify_billing_email_addresses': [
            'generic@digital.cabinet-office.gov.uk',
            'first.last@digital.cabinet-office.gov.uk',
        ]
    }


class Development(Config):
    BASIC_AUTH_FORCE = True
    NOTIFY_LOG_PATH = 'application.log'
    DEBUG = True
    SESSION_COOKIE_SECURE = False
    SESSION_PROTECTION = None
    CSV_UPLOAD_BUCKET_NAME = 'local-notifications-csv-upload'
    CONTACT_LIST_UPLOAD_BUCKET_NAME = 'local-contact-list'
    LOGO_UPLOAD_BUCKET_NAME = 'public-logos-tools'
    LOGO_CDN_DOMAIN = 'static-logos.notify.tools'
    MOU_BUCKET_NAME = 'notify.tools-mou'
    TRANSIENT_UPLOADED_LETTERS = 'development-transient-uploaded-letters'
    PRECOMPILED_ORIGINALS_BACKUP_LETTERS = 'development-letters-precompiled-originals-backup'
    ADMIN_CLIENT_SECRET = 'dev-notify-secret-key'
    # check for local compose orchestration variable
    API_HOST_NAME = os.environ.get('DEV_API_HOST_NAME', 'http://dev:6011')
    DANGEROUS_SALT = 'dev-notify-salt'
    SECRET_KEY = 'dev-notify-secret-key'
    ANTIVIRUS_API_HOST = 'http://localhost:6016'
    ANTIVIRUS_API_KEY = 'test-key'
    ANTIVIRUS_ENABLED = os.getenv('ANTIVIRUS_ENABLED') == '1'

    ASSET_PATH = '/static/'

    REDIS_URL = os.environ.get('DEV_REDIS_URL', 'http://redis:6379')
    
    REDIS_ENABLED = os.environ.get('REDIS_ENABLED') == '1'


class Test(Development):
    BASIC_AUTH_FORCE = False
    DEBUG = True
    TESTING = True
    WTF_CSRF_ENABLED = False
    CSV_UPLOAD_BUCKET_NAME = 'test-notifications-csv-upload'
    CONTACT_LIST_UPLOAD_BUCKET_NAME = 'test-contact-list'
    LOGO_UPLOAD_BUCKET_NAME = 'public-logos-test'
    LOGO_CDN_DOMAIN = 'static-logos.test.com'
    MOU_BUCKET_NAME = 'test-mou'
    TRANSIENT_UPLOADED_LETTERS = 'test-transient-uploaded-letters'
    PRECOMPILED_ORIGINALS_BACKUP_LETTERS = 'test-letters-precompiled-originals-backup'
    NOTIFY_ENVIRONMENT = 'test'
    API_HOST_NAME = 'http://you-forgot-to-mock-an-api-call-to'
    TEMPLATE_PREVIEW_API_HOST = 'http://localhost:9999'
    ANTIVIRUS_API_HOST = 'https://test-antivirus'
    ANTIVIRUS_API_KEY = 'test-antivirus-secret'
    ANTIVIRUS_ENABLED = True

    ASSET_DOMAIN = 'static.example.com'
    ASSET_PATH = 'https://static.example.com/'


class Preview(Config):
    BASIC_AUTH_FORCE = True
    HTTP_PROTOCOL = 'https'
    HEADER_COLOUR = '#F499BE'  # $baby-pink
    CSV_UPLOAD_BUCKET_NAME = 'preview-notifications-csv-upload'
    CONTACT_LIST_UPLOAD_BUCKET_NAME = 'preview-contact-list'
    LOGO_UPLOAD_BUCKET_NAME = 'public-logos-preview'
    LOGO_CDN_DOMAIN = 'static-logos.notify.works'
    MOU_BUCKET_NAME = 'notify.works-mou'
    TRANSIENT_UPLOADED_LETTERS = 'preview-transient-uploaded-letters'
    PRECOMPILED_ORIGINALS_BACKUP_LETTERS = 'preview-letters-precompiled-originals-backup'
    NOTIFY_ENVIRONMENT = 'preview'
    CHECK_PROXY_HEADER = False
    ASSET_DOMAIN = 'static.notify.works'
    ASSET_PATH = 'https://static.notify.works/'

    # On preview, extend the validation timeout to allow more leniency when running functional tests
    REPLY_TO_EMAIL_ADDRESS_VALIDATION_TIMEOUT = 120


class Staging(Config):
    BASIC_AUTH_FORCE = True
    HTTP_PROTOCOL = 'https'
    HEADER_COLOUR = '#6F72AF'  # $mauve
    CSV_UPLOAD_BUCKET_NAME = 'staging-notifications-csv-upload'
    CONTACT_LIST_UPLOAD_BUCKET_NAME = 'staging-contact-list'
    LOGO_UPLOAD_BUCKET_NAME = 'public-logos-staging'
    LOGO_CDN_DOMAIN = 'static-logos.staging-notify.works'
    MOU_BUCKET_NAME = 'staging-notify.works-mou'
    TRANSIENT_UPLOADED_LETTERS = 'staging-transient-uploaded-letters'
    PRECOMPILED_ORIGINALS_BACKUP_LETTERS = 'staging-letters-precompiled-originals-backup'
    NOTIFY_ENVIRONMENT = 'staging'
    CHECK_PROXY_HEADER = False
    ASSET_DOMAIN = 'static.staging-notify.works'
    ASSET_PATH = 'https://static.staging-notify.works/'


class Live(Config):
    BASIC_AUTH_FORCE = True
    HEADER_COLOUR = '#005EA5'  # $govuk-blue
    HTTP_PROTOCOL = 'https'
    CSV_UPLOAD_BUCKET_NAME = 'notifications.prototype.csv_upload'
    CONTACT_LIST_UPLOAD_BUCKET_NAME = 'notifications.prototype.contact_list_upload'
    LOGO_UPLOAD_BUCKET_NAME = 'notifications.prototype.logo_upload'
    LOGO_CDN_DOMAIN = 'static-logos.notifications.service.gov.uk'
    MOU_BUCKET_NAME = 'notifications.prototype.mou'
    TRANSIENT_UPLOADED_LETTERS = 'prototype-transient-uploaded-letters'
    PRECOMPILED_ORIGINALS_BACKUP_LETTERS = 'prototype-letters-precompiled-originals-backup'
    NOTIFY_ENVIRONMENT = 'live'
    CHECK_PROXY_HEADER = False
    ASSET_DOMAIN = 'static.notifications.service.gov.uk'
    ASSET_PATH = 'https://static.notifications.service.gov.uk/'


class CloudFoundryConfig(Config):
    pass


# CloudFoundry sandbox
class Sandbox(CloudFoundryConfig):
    HTTP_PROTOCOL = 'https'
    HEADER_COLOUR = '#F499BE'  # $baby-pink
    CSV_UPLOAD_BUCKET_NAME = 'cf-sandbox-notifications-csv-upload'
    LOGO_UPLOAD_BUCKET_NAME = 'cf-sandbox-notifications-logo-upload'
    NOTIFY_ENVIRONMENT = 'sandbox'


configs = {
    'development': Development,
    'test': Test,
    'preview': Preview,
    'staging': Staging,
    'live': Live,
    'production': Live,
    'sandbox': Sandbox
}