// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy of
// the License at
//
//  http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.

package filesystem

import "os"

// MockFS allows mocking a filesystem.
type MockFS struct {
	MkdirFunc    func(string, os.FileMode) error
	MkdirAllFunc func(string, os.FileMode) error
	CreateFunc   func(string) (File, error)
	OpenFunc     func(string) (File, error)
	StatFunc     func(string) (os.FileInfo, error)
	TempFileFunc func(string, string) (File, error)
	RenameFunc   func(string, string) error
	RemoveFunc   func(string) error
	LinkFunc     func(string, string) error
}

var _ Filesystem = &MockFS{}

// Mkdir calls fs.MkdirFunc
func (fs *MockFS) Mkdir(name string, perm os.FileMode) error {
	return fs.MkdirFunc(name, perm)
}

// MkdirAll calls fs.MkdirAllFunc
func (fs *MockFS) MkdirAll(path string, perm os.FileMode) error {
	return fs.MkdirAllFunc(path, perm)
}

// Open calls fs.OpenFunc
func (fs *MockFS) Open(name string) (File, error) {
	return fs.OpenFunc(name)
}

// Create calls fs.CreateFunc
func (fs *MockFS) Create(name string) (File, error) {
	return fs.CreateFunc(name)
}

// Stat calls fs.StatFunc
func (fs *MockFS) Stat(name string) (os.FileInfo, error) {
	return fs.StatFunc(name)
}

// TempFile calls fs.TempFileFunc
func (fs *MockFS) TempFile(dir, pattern string) (File, error) {
	return fs.TempFileFunc(dir, pattern)
}

// Rename calls fs.RenameFunc
func (fs *MockFS) Rename(oldpath, newpath string) error {
	return fs.RenameFunc(oldpath, newpath)
}

// Remove calls fs.RemoveFunc
func (fs *MockFS) Remove(name string) error {
	return fs.RemoveFunc(name)
}

// Link calls fs.LinkFunc
func (fs *MockFS) Link(oldname, newname string) error {
	return fs.LinkFunc(oldname, newname)
}