package cms

import (
	"strings"
	"unicode"
)

func slugify(value string) string {
	value = strings.ToLower(strings.TrimSpace(value))
	var b strings.Builder
	lastDash := false

	for _, r := range value {
		switch {
		case r >= 'a' && r <= 'z':
			b.WriteRune(r)
			lastDash = false
		case r >= '0' && r <= '9':
			b.WriteRune(r)
			lastDash = false
		case unicode.IsSpace(r) || r == '-' || r == '_' || r == '.':
			if !lastDash && b.Len() > 0 {
				b.WriteByte('-')
				lastDash = true
			}
		}
	}

	out := strings.Trim(b.String(), "-")
	if out == "" {
		return "untitled"
	}
	return out
}

func titleize(value string) string {
	value = strings.ReplaceAll(value, "-", " ")
	value = strings.TrimSpace(value)
	if value == "" {
		return "Untitled"
	}

	parts := strings.Fields(value)
	for i, part := range parts {
		if part == "" {
			continue
		}
		parts[i] = strings.ToUpper(part[:1]) + part[1:]
	}
	return strings.Join(parts, " ")
}