package wiki

import (
	"path"
	"strings"

	ice "shylinux.com/x/icebergs"
	"shylinux.com/x/icebergs/base/lex"
	"shylinux.com/x/icebergs/base/mdb"
	"shylinux.com/x/icebergs/base/nfs"
	"shylinux.com/x/icebergs/base/web"
	kit "shylinux.com/x/toolkits"
)

func _title_parse(m *ice.Message, text string) string {
	deep, list := []int{}, []string{}
	return m.Cmdx(lex.SPLIT, "", "name,link", kit.Dict(nfs.CAT_CONTENT, text), func(indent int, ls []string) []string {
		for len(deep) > 0 && indent <= deep[len(deep)-1] {
			deep = deep[:len(deep)-1]
			list = list[:len(list)-1]
		}
		if len(ls) > 1 {
			kit.If(!kit.HasPrefix(ls[1], nfs.PS, web.HTTP), func() {
				ls[1] = path.Join(kit.Select(path.Dir(m.Option(ice.MSG_SCRIPT)), list, -1), ls[1]) + kit.Select("", nfs.PS, strings.HasSuffix(ls[1], nfs.PS))
			})
		}
		deep = append(deep, indent)
		list = append(list, kit.Select("", ls, 1))
		return ls
	})
}
func _title_menu(m *ice.Message, name, text string, arg ...string) *ice.Message {
	m.Options(mdb.DATA, _title_parse(m, text))
	return _wiki_template(m, name, name, text, arg...)
}
func _title_show(m *ice.Message, name, text string, arg ...string) *ice.Message {
	switch title, _ := m.Optionv(TITLE).(map[string]int); name {
	case SECTION:
		title[SECTION]++
		m.Options(LEVEL, "h3", PREFIX, kit.Format("%d.%d ", title[CHAPTER], title[SECTION]))
	case CHAPTER:
		title[CHAPTER]++
		title[SECTION] = 0
		m.Options(LEVEL, "h2", PREFIX, kit.Format("%d ", title[CHAPTER]))
	default:
		m.Options(LEVEL, "h1", PREFIX, "")
	}
	return _wiki_template(m, "", name, text, arg...)
}

const (
	LEVEL  = "level"
	PREFIX = "prefix"
)
const (
	NAVMENU = "navmenu"
	PREMENU = "premenu"
	CHAPTER = "chapter"
	SECTION = "section"
	ENDMENU = "endmenu"
)
const TITLE = "title"

func init() {
	Index.MergeCommands(ice.Commands{
		TITLE: {Name: "title type=navmenu,premenu,chapter,section,endmenu text", Help: "标题", Hand: func(m *ice.Message, arg ...string) {
			switch arg[0] {
			case NAVMENU: // navmenu text arg...
				arg[1] = kit.Renders(arg[1], ice.Info)
				_title_menu(m, arg[0], arg[1], arg[2:]...)
			case PREMENU, ENDMENU: // premenu arg...
				_title_menu(m, arg[0], "", arg[1:]...)
			case CHAPTER, SECTION: // chapter text arg...
				_title_show(m, arg[0], arg[1], arg[2:]...)
			default: // title text arg...
				arg[0] = kit.Renders(arg[0], ice.Info)
				_title_show(m, "", arg[0], arg[1:]...)
			}
		}},
	})
}