class RagChatbotError(Exception):
    def __init__(self, message: str, status_code: int = 500):
        self.message = message
        self.status_code = status_code
        super().__init__(self.message)


class DatabaseError(RagChatbotError):
    def __init__(self, message: str = "Database operation failed"):
        super().__init__(message, status_code=500)


class VectorStoreError(RagChatbotError):
    def __init__(self, message: str = "Vector store operation failed"):
        super().__init__(message, status_code=500)


class DocumentProcessingError(RagChatbotError):
    def __init__(self, message: str = "Document processing failed"):
        super().__init__(message, status_code=400)


class EmbeddingError(RagChatbotError):
    def __init__(self, message: str = "Embedding generation failed"):
        super().__init__(message, status_code=500)


class LLMError(RagChatbotError):
    def __init__(self, message: str = "LLM generation failed"):
        super().__init__(message, status_code=500)


class AuthenticationError(RagChatbotError):
    def __init__(self, message: str = "Authentication failed"):
        super().__init__(message, status_code=401)


class ValidationError(RagChatbotError):
    def __init__(self, message: str = "Validation failed"):
        super().__init__(message, status_code=422)