package intelligence_finance

import "fmt"

// ErrorCode represents a numeric error code from the API.
type ErrorCode int

// Predefined error codes.
const (
	CodeSuccess ErrorCode = 0
)

// APIError represents an error returned by the platform API.
type APIError struct {
	Code    ErrorCode `json:"code"`
	Message string    `json:"msg,omitempty"`
}

// Error implements the error interface.
func (e *APIError) Error() string {
	return fmt.Sprintf("api error: code=%d, msg=%s", e.Code, e.Message)
}

// ErrInvalidResponse is returned when the API response cannot be parsed.
type ErrInvalidResponse struct {
	Message string
}

// Error implements the error interface.
func (e *ErrInvalidResponse) Error() string {
	return fmt.Sprintf("invalid response: %s", e.Message)
}

// ErrNetwork is returned when a network error occurs.
type ErrNetwork struct {
	Err error
}

// Error implements the error interface.
func (e *ErrNetwork) Error() string {
	return fmt.Sprintf("network error: %v", e.Err)
}

// Unwrap returns the underlying error.
func (e *ErrNetwork) Unwrap() error {
	return e.Err
}

// ErrSigning is returned when a signing error occurs.
type ErrSigning struct {
	Message string
	Err     error
}

// Error implements the error interface.
func (e *ErrSigning) Error() string {
	if e.Err != nil {
		return fmt.Sprintf("signing error: %s: %v", e.Message, e.Err)
	}
	return fmt.Sprintf("signing error: %s", e.Message)
}

// Unwrap returns the underlying error.
func (e *ErrSigning) Unwrap() error {
	return e.Err
}