// Copyright 2019 The Hugo Authors. All rights reserved.
//
// 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 pagemeta

import (
	"github.com/mitchellh/mapstructure"
)

type URLPath struct {
	URL       string
	Permalink string
	Slug      string
	Section   string
}

var defaultBuildConfig = BuildConfig{
	List:             true,
	Render:           true,
	PublishResources: true,
	set:              true,
}

// BuildConfig holds configuration options about how to handle a Page in Hugo's
// build process.
type BuildConfig struct {
	// Whether to add it to any of the page collections.
	// Note that the page can still be found with .Site.GetPage.
	List bool

	// Whether to render it.
	Render bool

	// Whether to publish its resources. These will still be published on demand,
	// but enabling this can be useful if the originals (e.g. images) are
	// never used.
	PublishResources bool

	set bool // BuildCfg is non-zero if this is set to true.
}

// Disable sets all options to their off value.
func (b *BuildConfig) Disable() {
	b.List = false
	b.Render = false
	b.PublishResources = false
	b.set = true
}

func (b BuildConfig) IsZero() bool {
	return !b.set
}

func DecodeBuildConfig(m interface{}) (BuildConfig, error) {
	b := defaultBuildConfig
	if m == nil {
		return b, nil
	}
	err := mapstructure.WeakDecode(m, &b)
	return b, err
}