package ports

import (
	"errors"

	"booklib/internal/store"
)

// Re-export sentinel errors so handlers can use errors.Is via ports.
var (
	ErrLastAdmin       = store.ErrLastAdmin
	ErrUniqueViolation = store.ErrUniqueViolation
)

// IsUniqueViolation consolidates the pg 23505 check into a single predicate.
func IsUniqueViolation(err error) bool { return store.IsUniqueViolation(err) }

// Upload sentinel errors.
var (
	ErrTooLarge     = errors.New("file too large")
	ErrIncomplete   = errors.New("upload incomplete")
	ErrSizeMismatch = errors.New("size mismatch")
	ErrNotFound     = errors.New("not found")
)