mdbook

type Book struct {
	Items []Item    `json:"items"`
	X     *struct{} `json:"__non_exhaustive"`
}

type BookConfig struct {
	Authors      []string `json:"authors"`
	Source       string   `json:"src"`
	Description  string   `json:"description"`
	Language     string   `json:"language"`
	Title        string   `json:"title"`
	MultiLingual bool     `json:"multilingual"`
}

type BookItem interface {
	Chapter | Separator | PartTitle
}

type Chapter struct {
	Name        string   `json:"name"`
	Content     string   `json:"content"`
	Number      []int    `json:"number"`
	SubItems    []Item   `json:"sub_items"`
	Path        *string  `json:"path"`
	SourcePath  *string  `json:"source_path"`
	ParentNames []string `json:"parent_names"`
}

type Context struct {
	Root     string `json:"root"`
	Renderer string `json:"renderer"`
	Version  string `json:"mdbook_version"`
	Config   struct {
		Book   BookConfig                 `json:"book"`
		Output map[string]json.RawMessage `json:"output"`
	} `json:"config"`
	Preprocessor map[string]json.RawMessage `json:"preprocessor"`
}

type Hook[I BookItem] func(ctx context.Context, b *strings.Builder, item *I) error

type Item struct {
	Chapter   *Chapter   `json:",omitempty"`
	Separator *Separator `json:",omitempty"`
	PartTitle *PartTitle `json:",omitempty"`
}

type PartTitle string

type Proc struct {
	Chapter   Hook[Chapter]
	Separator Hook[Separator]
	PartTitle Hook[PartTitle]
}

type ProcFunc func(context.Context, *Context) (*Proc, error)

type Separator struct{}