// Copyright (c) 2026 Storm Dragon
// SPDX-License-Identifier: GPL-3.0-or-later

package presentation

import (
	"strconv"
	"unicode"

	"git.stormux.org/storm/fenrir/internal/i18n"
)

// Indentation_level counts leading visible whitespace cells. Terminal backends
// normally expand tabs already; a literal tab advances to the next 8-cell stop.
// Blank rows have no meaningful indentation, including terminal padding.
func Indentation_level(line []rune) (int, bool) {
	level := 0
	for _, char := range line {
		if !unicode.IsSpace(char) {
			return level, true
		}
		if char == '\t' {
			level += 8 - level%8
		} else {
			level++
		}
	}
	return 0, false
}

func Indentation_message(level int, mode string) Message {
	message := Message{Text: i18n.T("indented ") + strconv.Itoa(level) + " "}
	if mode == "beeps" || mode == "both" {
		message.Indentation = &Indentation{Level: level, Speech: mode == "both"}
	}
	return message
}