#
# Copyright (c) 2022-2023, Jesús Daniel Colmenares Oviedo <DtxdF@disroot.org>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice, this
#   list of conditions and the following disclaimer.
#
# * Redistributions in binary form must reproduce the above copyright notice,
#   this list of conditions and the following disclaimer in the documentation
#   and/or other materials provided with the distribution.
#
# * Neither the name of the copyright holder nor the names of its
#   contributors may be used to endorse or promote products derived from
#   this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

lib_load "${LIBDIR}/log"
lib_load "${LIBDIR}/sysexits"

random_hexstring()
{
	local size begin end

	size="$1"; begin="$2"; end="$3"

	if [ -z "${size}" -o -z "${begin}" -o -z "${end}" ]; then
		lib_err ${EX_USAGE} "usage: random_hexstring size begin end"
	fi

	jot -r -w %x "${size}" "${begin}" "${end}"
}

random_number()
{
	local begin end

	begin="$1"; end="$2"

	if [ -z "${begin}" -o -z "${end}" ]; then
		lib_err ${EX_USAGE} "usage: random_number begin end"
	fi

	jot -r 1 "${begin}" "${end}"
}

random_color()
{
	local n1 n2
	local clr
	local bold

	if [ "${ENABLE_COLORS}" = "0" -o "${ENABLE_RANDOM_COLORS}" = "0" ]; then
		return 0
	fi

	# Colors

	n1=`random_number 1 7`

	# Intensity or regular

	n2=`random_number 0 100`

	if [ ${n2} -le 50 ]; then
		clr=3
	else
		clr=9
	fi

	# Bold

	n3=`random_number 0 100`

	if [ ${n3} -le 50 ]; then
		bold=1
	else
		bold=0
	fi

	echo "\033[${bold};${clr}${n1}m"
}
