from os import environ, path
from datetime import timedelta
import redis

basedir = path.abspath(path.dirname(__file__))


class Config(object):
    DEBUG = False
    DEVELOPMENT = False
    SECRET_KEY = '97867c1491bea5ee6a8e8436eb11bf2ba6a69ff53ab1b17ecba450d0f2e572e1'
    SESSION_COOKIE_SECURE = False
    SESSION_COOKIE_HTTPONLY = True

    WTF_CSRF_ENABLED = True

    # flask-security-too settings
    # SECURITY_URL_PREFIX = '/admin'
    SECURITY_LOGIN_URL = '/admin/login'
    SECURITY_LOGOUT_URL = '/admin/logout'
    # SECURITY_REGISTER_URL = '/admin/register'
    # SECURITY_RESET_URL = '/admin/reset'
    # SECURITY_CHANGE_URL = '/admin/change'
    # SECURITY_POST_LOGIN_VIEW = '/admin/user/tenant_overview'
    # SECURITY_POST_LOGOUT_VIEW = '/admin'
    # SECURITY_POST_REGISTER_VIEW = '/admin/user/tenant_overview'
    # SECURITY_POST_RESET_VIEW = '/admin/login'
    # SECURITY_POST_CHANGE_VIEW = '/admin/login'
    # SECURITY_BLUEPRINT_NAME = 'security_bp'
    SECURITY_PASSWORD_SALT = '228614859439123264035565568761433607235'
    REMEMBER_COOKIE_SAMESITE = 'strict'
    SESSION_COOKIE_SAMESITE = 'strict'
    SECURITY_CONFIRMABLE = True
    SECURITY_TRACKABLE = True
    SECURITY_PASSWORD_COMPLEXITY_CHECKER = 'zxcvbn'
    SECURITY_POST_LOGIN_VIEW = '/user/tenant_overview'
    SECURITY_RECOVERABLE = True
    SECURITY_EMAIL_SENDER = "eveai_super@flow-it.net"

    # Ensure Flask-Security-Too is handling CSRF tokens when behind a proxy
    SECURITY_CSRF_PROTECT_MECHANISMS = ['session']
    SECURITY_CSRF_COOKIE_NAME = 'XSRF-TOKEN'
    SECURITY_CSRF_HEADER = 'X-XSRF-TOKEN'
    WTF_CSRF_CHECK_DEFAULT = False

    # flask-mailman settings
    MAIL_SERVER = 'mail.flow-it.net'
    MAIL_PORT = 587
    MAIL_USE_TLS = True
    MAIL_USE_SSL = False
    MAIL_DEFAULT_SENDER = ('eveAI Admin', 'eveai_admin@flow-it.net')

    # file upload settings
    MAX_CONTENT_LENGTH = 16 * 1024 * 1024
    UPLOAD_EXTENSIONS = ['.txt', '.pdf', '.png', '.jpg', '.jpeg', '.gif']

    # supported languages
    SUPPORTED_LANGUAGES = ['en', 'fr', 'nl', 'de', 'es']

    # supported LLMs
    SUPPORTED_EMBEDDINGS = ['openai.text-embedding-3-small', 'mistral.mistral-embed']
    SUPPORTED_LLMS = ['openai.gpt-4o', 'openai.gpt-4-turbo', 'openai.gpt-3.5-turbo', 'mistral.mistral-large-2402']

    # Celery settings
    CELERY_TASK_SERIALIZER = 'json'
    CELERY_RESULT_SERIALIZER = 'json'
    CELERY_ACCEPT_CONTENT = ['json']
    CELERY_TIMEZONE = 'UTC'
    CELERY_ENABLE_UTC = True

    # Chunk Definition, Embedding dependent
    OAI_TE3S_MIN_CHUNK_SIZE = 2000
    OAI_TE3S_MAX_CHUNK_SIZE = 3000

    # LLM TEMPLATES
    GPT4_SUMMARY_TEMPLATE = """Write a concise summary of the text in the same language as the provided text. 
    Text is delimited between triple backquotes.
    ```{text}```"""
    GPT3_5_SUMMARY_TEMPLATE = """Write a concise summary of the text in the same language as the provided text. 
        Text is delimited between triple backquotes.
        ```{text}```"""
    GPT4_RAG_TEMPLATE = """Answer the question based on the following context, both delimited between triple backquotes
    in the same language as question. 
    If the question cannot be answered using the text, say "I don't know" in the same language as the question.
    Context:
    ```{context}```
    Question:
    ```{question}```"""
    GPT3_5_RAG_TEMPLATE = """Answer the question based on the following context, both delimited between triple backquotes
        in the same language as question. 
        If the question cannot be answered using the text, say "I don't know" in the same language as the question.
        Context:
        ```{context}```
        Question:
        ```{question}```"""

    # SocketIO settings
    # SOCKETIO_ASYNC_MODE = 'threading'
    SOCKETIO_ASYNC_MODE = 'gevent'

    # Session Settings
    SESSION_TYPE = 'redis'
    SESSION_PERMANENT = False
    SESSION_USE_SIGNER = True
    PERMANENT_SESSION_LIFETIME = timedelta(minutes=60)
    SESSION_REFRESH_EACH_REQUEST = True


class DevConfig(Config):
    DEVELOPMENT = True
    DEBUG = True
    FLASK_DEBUG = True
    PYCHARM_DEBUG = False
    SQLALCHEMY_DATABASE_URI = 'postgresql+pg8000://josako@localhost:5432/eveAI'
    SQLALCHEMY_BINDS = {'public': 'postgresql+pg8000://josako@localhost:5432/eveAI'}
    EXPLAIN_TEMPLATE_LOADING = False

    # Define the nginx prefix used for the specific apps
    EVEAI_APP_LOCATION_PREFIX = '/admin'
    EVEAI_CHAT_LOCATION_PREFIX = '/chat'

    # flask-mailman settings
    MAIL_USERNAME = 'eveai_super@flow-it.net'
    MAIL_PASSWORD = '$6xsWGbNtx$CFMQZqc*'

    # file upload settings
    UPLOAD_FOLDER = '/Volumes/OWC4M2_1/Development/eveAI/file_store'

    # Celery settings
    # eveai_app Redis Settings
    CELERY_BROKER_URL = 'redis://localhost:6379/0'
    CELERY_RESULT_BACKEND = 'redis://localhost:6379/0'
    # eveai_chat Redis Settings
    CELERY_BROKER_URL_CHAT = 'redis://localhost:6379/3'
    CELERY_RESULT_BACKEND_CHAT = 'redis://localhost:6379/3'

    # OpenAI API Keys
    OPENAI_API_KEY = 'sk-proj-8R0jWzwjL7PeoPyMhJTZT3BlbkFJLb6HfRB2Hr9cEVFWEhU7'

    # Unstructured settings
    UNSTRUCTURED_API_KEY = 'pDgCrXumYhM3CNvjvwV8msMldXC3uw'
    UNSTRUCTURED_BASE_URL = 'https://flowitbv-16c4us0m.api.unstructuredapp.io'
    UNSTRUCTURED_FULL_URL = 'https://flowitbv-16c4us0m.api.unstructuredapp.io/general/v0/general'

    # SocketIO settings
    SOCKETIO_MESSAGE_QUEUE = 'redis://localhost:6379/1'
    SOCKETIO_CORS_ALLOWED_ORIGINS = '*'
    SOCKETIO_LOGGER = True
    SOCKETIO_ENGINEIO_LOGGER = True

    # Google Cloud settings
    GC_PROJECT_NAME = 'eveai-420711'
    GC_LOCATION = 'europe-west1'
    GC_KEY_RING = 'eveai-chat'
    GC_CRYPTO_KEY = 'envelope-encryption-key'

    # JWT settings
    JWT_SECRET_KEY = 'bsdMkmQ8ObfMD52yAFg4trrvjgjMhuIqg2fjDpD/JqvgY0ccCcmlsEnVFmR79WPiLKEA3i8a5zmejwLZKl4v9Q=='

    # Session settings
    SESSION_REDIS = redis.from_url('redis://localhost:6379/2')


class ProdConfig(Config):
    DEVELOPMENT = False
    DEBUG = False
    # SQLALCHEMY_DATABASE_URI = environ.get('SQLALCHEMY_DATABASE_URI') or \
    #                           'sqlite:///' + os.path.join(basedir, 'db.sqlite')


config = {
    'dev': DevConfig(),
    'prod': ProdConfig(),
    'default': DevConfig(),
}