resource

type Cloner interface {
	Clone() Resource
}

type ContentProvider interface {
	// Content returns this resource's content. It will be equivalent to reading the content
	// that RelPermalink points to in the published folder.
	// The return type will be contextual, and should be what you would expect:
	// * Page: template.HTML
	// * JSON: String
	// * Etc.
	Content() (interface{}, error)
}

type ContentResource interface {
	MediaType() media.Type
	ContentProvider
}

type Dated interface {
	Date() time.Time
	Lastmod() time.Time
	PublishDate() time.Time
	ExpiryDate() time.Time
}

type Dates struct {
	FDate        time.Time
	FLastmod     time.Time
	FPublishDate time.Time
	FExpiryDate  time.Time
}

type Identifier interface {
	Key() string
}

type Image interface {
	Resource
	ImageOps
}

type ImageOps interface {
	Height() int
	Width() int
	Fill(spec string) (Image, error)
	Fit(spec string) (Image, error)
	Resize(spec string) (Image, error)
	Filter(filters ...interface{}) (Image, error)
	Exif() (*exif.Exif, error)
}

type LanguageProvider interface {
	Language() *langs.Language
}

type LengthProvider interface {
	Len() int
}

type OpenReadSeekCloser func() (hugio.ReadSeekCloser, error)

type ReadSeekCloserProvider interface {
	ReadSeekCloser() (hugio.ReadSeekCloser, error)
}

type ReadSeekCloserResource interface {
	MediaType() media.Type
	ReadSeekCloserProvider
}

type Resource interface {
	ResourceTypesProvider
	ResourceLinksProvider
	ResourceMetaProvider
	ResourceParamsProvider
	ResourceDataProvider
}

type ResourceDataProvider interface {
	// Resource specific data set by Hugo.
	// One example would be.Data.Digest for fingerprinted resources.
	Data() interface{}
}

type ResourceLinksProvider interface {
	// Permalink represents the absolute link to this resource.
	Permalink() string

	// RelPermalink represents the host relative link to this resource.
	RelPermalink() string
}

type ResourceMetaProvider interface {
	// Name is the logical name of this resource. This can be set in the front matter
	// metadata for this resource. If not set, Hugo will assign a value.
	// This will in most cases be the base filename.
	// So, for the image "/some/path/sunset.jpg" this will be "sunset.jpg".
	// The value returned by this method will be used in the GetByPrefix and ByPrefix methods
	// on Resources.
	Name() string

	// Title returns the title if set in front matter. For content pages, this will be the expected value.
	Title() string
}

type ResourceParamsProvider interface {
	// Params set in front matter for this resource.
	Params() maps.Params
}

type ResourceTypesProvider interface {
	// MediaType is this resource's MIME type.
	MediaType() media.Type

	// ResourceType is the resource type. For most file types, this is the main
	// part of the MIME type, e.g. "image", "application", "text" etc.
	// For content pages, this value is "page".
	ResourceType() string
}

type Resources []Resource

type ResourcesConverter interface {
	ToResources() Resources
}

type ResourcesLanguageMerger interface {
	MergeByLanguage(other Resources) Resources
	// Needed for integration with the tpl package.
	MergeByLanguageInterface(other interface{}) (interface{}, error)
}

type Source interface {
	Publish() error
}

type TranslationKeyProvider interface {
	TranslationKey() string
}