// Copyright 2018 The Operator-SDK Authors
//
// 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 scaffold

import (
	"path/filepath"

	"github.com/operator-framework/operator-sdk/internal/pkg/scaffold/input"
)

const ControllerFile = "controller.go"

type Controller struct {
	input.Input
}

func (s *Controller) GetInput() (input.Input, error) {
	if s.Path == "" {
		s.Path = filepath.Join(ControllerDir, ControllerFile)
	}
	s.TemplateBody = controllerTmpl
	return s.Input, nil
}

const controllerTmpl = `package controller

import (
	"sigs.k8s.io/controller-runtime/pkg/manager"
)

// AddToManagerFuncs is a list of functions to add all Controllers to the Manager
var AddToManagerFuncs []func(manager.Manager) error

// AddToManager adds all Controllers to the Manager
func AddToManager(m manager.Manager) error {
	for _, f := range AddToManagerFuncs {
		if err := f(m); err != nil {
			return err
		}
	}
	return nil
}
`
