package style

import (
	"fmt"
	"strings"

	"gitea.meta-tech.academy/go/core/util"
	"github.com/gookit/color"
)

// Hello returns a greeting for the named person.
func Hello(name string) string {
	// Return a greeting that embeds the name in a message.
	message := fmt.Sprintf("Hi, %v. Welcome!", name)
	return message
}

const KEY_STYLE_NAME = 0
const KEY_STYLE_COLOR = 1
const KEY_STYLE_OPTION = 2

type Style struct {
	color *color.RGBStyle
	Name  string
}

type Styles struct {
	List              map[string]*Style
	DefaultKeyStyle   string
	DefaultValStyle   string
	DefaultKeyPadding string
	DefaultIndent     string
}

func (s *Style) Printf(format string, a ...any) {
	s.color.Printf(format, a...)
}

func (s *Style) Sprintf(format string, a ...any) string {
	return s.color.Sprintf(format, a...)
}

func (s *Style) Echo(data string, format ...string) {
	fmt := "%s"
	if len(format) > 1 {
		fmt = format[0]
	}
	s.Printf(fmt, data)
}

func (s *Style) Apply(data string, format ...string) string {
	if len(format) > 1 {
		return s.Sprintf(format[0], data)
	} else {
		return s.Sprintf(data)
	}
}

func NewStyleByDef(def string) *Style {
	var o []string = []string{}
	d := strings.Fields(def)
	c := strings.Split(d[KEY_STYLE_COLOR], ",")
	if len(d) > KEY_STYLE_OPTION {
		o = strings.Split(d[KEY_STYLE_OPTION], ",")
	}
	prependToSliceStr(&c, "#")
	var s *color.RGBStyle
	switch len(c) {
	case 1:
		s = color.HEXStyle(c[0])
	case 2:
		s = color.HEXStyle(c[0], c[1])
	}
	for _, elm := range o {

		s.AddOpts(color.Color(str2int(elm, 10, 0)))
	}
	// s.Printf(" %-20s\n", d[KEY_STYLE_NAME])
	return &Style{s, d[KEY_STYLE_NAME]}
}

func NewStyles() *Styles {
	l := &Styles{
		List:              make(map[string]*Style),
		DefaultKeyStyle:   "key",
		DefaultValStyle:   "val",
		DefaultKeyPadding: "18",
		DefaultIndent:     "4",
	}
	return l
}

func (s *Styles) Apply(name string, data string) string {
	return s.List[name].Apply(data)
}

func (s *Styles) Echo(name string, data string) {
	s.List[name].Echo(data)
}

func (s *Styles) Keyval(key string, val string, names ...string) {
	sk := s.List[s.DefaultKeyStyle]
	sv := s.List[s.DefaultValStyle]
	if len(names) > 1 {
		sk = s.List[names[0]]
		if len(names) > 2 {
			sv = s.List[names[1]]
		}
	}
	fmt.Printf(
		"%-"+s.DefaultIndent+"s%s : %s\n",
		" ",
		sk.Sprintf("%-"+s.DefaultKeyPadding+"s", key),
		sv.Apply(val),
	)
}

func prependToSliceStr(strs *[]string, prefix string) {
	for i, elm := range *strs {
		(*strs)[i] = prefix + elm
	}
}

func str2int(str string, base int, fallback int) int {
	return int(util.Str2int64(str, base, int64(fallback)))
}