# --- enable/disable this file ---
SRC_ENABLED=true

case "$SRC_ENABLED" in
	1|true|yes|on) unset SRC_ENABLED ;;           # enabled — clean up and continue
	*) unset SRC_ENABLED; return ;;                # disabled — clean up and skip this file
esac
# ---------------------------------

# ---------------------------------------------------------------------------
# hesgenk2() - generator hesel
# ZDROJ (puvodni forma): https://hesgen.rfa.cz/
# Celkova delka hesla = DelkaHesla + 2 cislice
# Poznamka: cislovani zacina od "0" :o)
# Modifikace - PeVa 24.06.2026 (shellcheck, futureproofing, code purge)
# Preveden na funkci pro sourcovani z .bashrc - kompatibilni s bash
# na RHEL5 (bash 3.2) a Debian Squeeze (bash 4.1) i novejsimi.
#
# Pouziti:
#   hesgenk2 [PocetHesel] [DelkaHesla]
#
# Priklady:
#   hesgenk2          -> 1 heslo, delka 12 (+2 cislice)
#   hesgenk2 5        -> 5 hesel, delka 12 (+2 cislice)
#   hesgenk2 5 16     -> 5 hesel, delka 16 (+2 cislice)
# ---------------------------------------------------------------------------
hesgenk2() {
	# Napoveda
	case "$1" in
		-h|--help|help)
			echo "Pouziti: hesgenk2 [PocetHesel] [DelkaHesla]"
			echo
			echo "  PocetHesel  pocet vygenerovanych hesel (cislo >= 1, vychozi 1)"
			echo "  DelkaHesla  delka textove casti hesla (cislo >= 12, vychozi 12)"
			echo "              vysledne heslo ma DelkaHesla + 2 cislice na konci"
			echo
			echo "Priklady:"
			echo "  hesgenk2          -> 1 heslo, delka 12 (+2 cislice)"
			echo "  hesgenk2 5        -> 5 hesel, delka 12 (+2 cislice)"
			echo "  hesgenk2 5 16     -> 5 hesel, delka 16 (+2 cislice)"
			return 0
			;;
	esac

	# Vychozi hodnoty
	local PocetHesel=1
	local DelkaHesla=12

	# Parametry (bez ";", aby prazdny/nenumericky vstup neshodil shell)
	local ParamPocet="${1:-0}"
	local ParamDelka="${2:-0}"
	ParamPocet=$((0 + ParamPocet))
	ParamDelka=$((0 + ParamDelka))

	if [ "$ParamPocet" -ge 1 ]; then
		PocetHesel=$ParamPocet
	fi
	if [ "$ParamDelka" -ge 12 ]; then
		DelkaHesla=$ParamDelka
	fi

	echo "Pocet hesel: $PocetHesel, Delka $DelkaHesla"
	echo

	local Souhlasek=15
	local SouhlaskaVelka
	SouhlaskaVelka=("B" "C" "D" "F" "H" "J" "K" "L" "M" "N" "P" "R" "S" "T" "V")
	local SouhlaskaMala
	SouhlaskaMala=("b" "c" "d" "f" "h" "j" "k" "l" "m" "n" "p" "r" "s" "t" "v")
	local Samohlasek=5
	local SamohlaskaMala
	SamohlaskaMala=("a" "e" "i" "o" "u")

	local rot i RAND vystup

	for rot in $(seq 1 "$PocetHesel"); do
		# Reset
		vystup=""
		# TEXTOVA CAST HESLA
		for i in $(eval "echo {0..$((DelkaHesla - 1))}"); do
			if [ $((i % 2)) -eq 0 ]; then
				# kazdy "sudy" znak je souhlaska
				RAND=$((RANDOM % Souhlasek))
				if [ $((i % 4)) -eq 0 ]; then
					# kazdy "ctvrty" znak je velke pismeno
					vystup="${vystup}${SouhlaskaVelka[$RAND]}"
				else
					vystup="${vystup}${SouhlaskaMala[$RAND]}"
				fi
			else
				# kazdy "lichy" znak je samohlaska
				RAND=$((RANDOM % Samohlasek))
				vystup="${vystup}${SamohlaskaMala[$RAND]}"
			fi
		done
		RAND=$((RANDOM % 10))
		vystup="${vystup}${RAND}"
		RAND=$((RANDOM % 10))
		vystup="${vystup}${RAND}"
		echo "$vystup"
	done
}