# app/exceptions/content_page.py
"""
Content Page Domain Exceptions

These exceptions are raised by the content page service layer
and converted to HTTP responses by the global exception handler.
"""

from app.exceptions.base import (
    AuthorizationException,
    BusinessLogicException,
    ConflictException,
    ResourceNotFoundException,
    ValidationException,
)


class ContentPageNotFoundException(ResourceNotFoundException):
    """Raised when a content page is not found."""

    def __init__(self, identifier: str | int | None = None):
        if identifier:
            message = f"Content page not found: {identifier}"
        else:
            message = "Content page not found"
        super().__init__(message=message, resource_type="content_page")


class ContentPageAlreadyExistsException(ConflictException):
    """Raised when a content page with the same slug already exists."""

    def __init__(self, slug: str, vendor_id: int | None = None):
        if vendor_id:
            message = f"Content page with slug '{slug}' already exists for this vendor"
        else:
            message = f"Platform content page with slug '{slug}' already exists"
        super().__init__(message=message)


class ContentPageSlugReservedException(ValidationException):
    """Raised when trying to use a reserved slug."""

    def __init__(self, slug: str):
        super().__init__(
            message=f"Content page slug '{slug}' is reserved",
            field="slug",
            value=slug,
        )


class ContentPageNotPublishedException(BusinessLogicException):
    """Raised when trying to access an unpublished content page."""

    def __init__(self, slug: str):
        super().__init__(message=f"Content page '{slug}' is not published")


class UnauthorizedContentPageAccessException(AuthorizationException):
    """Raised when a user tries to access/modify a content page they don't own."""

    def __init__(self, action: str = "access"):
        super().__init__(
            message=f"Cannot {action} content pages from other vendors",
            required_permission=f"content_page:{action}",
        )


class VendorNotAssociatedException(AuthorizationException):
    """Raised when a user is not associated with a vendor."""

    def __init__(self):
        super().__init__(
            message="User is not associated with a vendor",
            required_permission="vendor:member",
        )


class ContentPageValidationException(ValidationException):
    """Raised when content page data validation fails."""

    def __init__(self, field: str, message: str, value: str | None = None):
        super().__init__(message=message, field=field, value=value)
