// Vikunja is a to-do list application to facilitate your life.
// Copyright 2018-2020 Vikunja and contributors. All rights reserved.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.

package error

import "fmt"

// ErrValueNotFoundForKey represents an error where a key could not be found
type ErrValueNotFoundForKey struct {
	Key string
}

// Error is the error implementation
func (e *ErrValueNotFoundForKey) Error() string {
	return fmt.Sprintf("could not find value for key %s", e.Key)
}

// IsErrValueNotFoundForKey checks if an error is ErrValueNotFoundForKey
func IsErrValueNotFoundForKey(err error) bool {
	_, is := err.(*ErrValueNotFoundForKey)
	return is
}

// ErrValueHasWrongType represents an error where a value saved at key has the wrong value
type ErrValueHasWrongType struct {
	Key           string
	ExpectedValue string
}

// Error is the error implementation
func (e *ErrValueHasWrongType) Error() string {
	return fmt.Sprintf("value at key %s has the wrong value, expexted was %s", e.Key, e.ExpectedValue)
}

// IsErrValueHasWrongType checks if an error is ErrValueHasWrongType
func IsErrValueHasWrongType(err error) bool {
	_, is := err.(*ErrValueHasWrongType)
	return is
}