import os
from datetime import timedelta
from dotenv import load_dotenv

load_dotenv()


class Config:
    SECRET_KEY = os.environ.get("SECRET_KEY") or "dev-secret-key-change-in-production"

    Flask_ENV = os.environ.get("FLASK_ENV") or "development"
    Flask_DEBUG = os.environ.get("FLASK_DEBUG", "True").lower() == "true"
    Flask_HOST = os.environ.get("FLASK_HOST", "0.0.0.0")
    Flask_PORT = int(os.environ.get("FLASK_PORT", 5000))

    DATABASE_URL = (
        os.environ.get("DATABASE_URL")
        or "mysql+pymysql://sentclaw:sentclaw123@localhost:3306/sentclaw"
    )

    REDIS_URL = os.environ.get("REDIS_URL") or "redis://:redis123@localhost:6379/0"

    JWT_SECRET_KEY = (
        os.environ.get("JWT_SECRET_KEY") or "jwt-secret-key-change-in-production"
    )
    JWT_ACCESS_TOKEN_EXPIRES = timedelta(
        seconds=int(os.environ.get("JWT_ACCESS_TOKEN_EXPIRES", 3600))
    )

    CORS_ORIGINS = os.environ.get(
        "CORS_ORIGINS", "http://localhost:5173,http://localhost:3000"
    ).split(",")

    UPLOAD_FOLDER = os.environ.get("UPLOAD_FOLDER", "uploads")
    MAX_CONTENT_LENGTH = int(os.environ.get("MAX_CONTENT_LENGTH", 16777216))

    LOG_LEVEL = os.environ.get("LOG_LEVEL", "INFO")
    LOG_FILE = os.environ.get("LOG_FILE", "logs/app.log")

    LLM_TIMEOUT = 30
    LLM_MAX_RETRIES = 3

    MCP_TIMEOUT = 10

    AGENT_MAX_ITERATIONS = 10
    AGENT_THINKING_TIMEOUT = 60

    MEMORY_WINDOW_SIZE = 10
    MEMORY_COMPRESSION_THRESHOLD = 0.8


class DevelopmentConfig(Config):
    DEBUG = True


class ProductionConfig(Config):
    DEBUG = False


class TestingConfig(Config):
    TESTING = True
    DATABASE_URL = "sqlite:///:memory:"


config_by_name = {
    "development": DevelopmentConfig,
    "production": ProductionConfig,
    "testing": TestingConfig,
}