const (
	// HugoDeferredTemplatePrefix is the prefix for placeholders for deferred templates.
	HugoDeferredTemplatePrefix = "__hdeferred/"
	// HugoDeferredTemplateSuffix is the suffix for placeholders for deferred templates.
	HugoDeferredTemplateSuffix = "__d="
)

var Context = struct {
	DependencyManagerScopedProvider    contexthelpers.ContextDispatcher[identity.DependencyManagerScopedProvider]
	GetDependencyManagerInCurrentScope func(context.Context) identity.Manager
	DependencyScope                    contexthelpers.ContextDispatcher[int]
	Page                               contexthelpers.ContextDispatcher[page]
	IsInGoldmark                       contexthelpers.ContextDispatcher[bool]
	CurrentTemplate                    contexthelpers.ContextDispatcher[*CurrentTemplateInfo]
}{
	DependencyManagerScopedProvider: contexthelpers.NewContextDispatcher[identity.DependencyManagerScopedProvider](contextKeyDependencyManagerScopedProvider),
	DependencyScope:                 contexthelpers.NewContextDispatcher[int](contextKeyDependencyScope),
	Page:                            contexthelpers.NewContextDispatcher[page](contextKeyPage),
	IsInGoldmark:                    contexthelpers.NewContextDispatcher[bool](contextKeyIsInGoldmark),
	CurrentTemplate:                 contexthelpers.NewContextDispatcher[*CurrentTemplateInfo](cntextKeyCurrentTemplateInfo),
}

type CurrentTemplateInfo struct {
	Parent *CurrentTemplateInfo
	Level  int
	Key    string
	CurrentTemplateInfoOps
}

type CurrentTemplateInfoCommonOps interface {
	// Template name.
	Name() string
	// Template source filename.
	// Will be empty for internal templates.
	Filename() string
}

type CurrentTemplateInfoOps interface {
	CurrentTemplateInfoCommonOps
	Base() CurrentTemplateInfoCommonOps
}

type CurrentTemplateInfos []*CurrentTemplateInfo

type DeferredExecution struct {
	Mu           sync.Mutex
	Ctx          context.Context
	TemplatePath string
	Data         any

	Executed bool
	Result   string
}

type RenderingContext struct {
	Site       site
	SiteOutIdx int
}

type Template interface {
	Name() string
	Prepare() (*texttemplate.Template, error)
}