#!/bin/sh

################################################################################
# caab1403.sh                                                                  #
################################################################################
#
# implements full compliance with CA AB1403
#
# see: https://legiscan.com/CA/text/AB1043/2025

################################################################################
# interpreting output                                                          #
################################################################################
#
# an age bracket check will return one of the following values:
#
# A : the user claims to be less than 13 years old
# B : the user claims to be more than 13 and less than 16 years old
# C : the user claims to be more than 16 and less than 18 years old
# D : the user claims to be more than 18 years old
#   : the user declines to participate

################################################################################
# copyright                                                                    #
################################################################################
#
# this file is copyright 2026 by spike@full0fstars.net
#
# it may be used and redistributed in any way provided this attribution
# information is included

usage() {
    echo "Usage: $0 [-s age] [-c]"
    echo ""
    echo "Options:"
    echo "  -s age   sets the current user's age"
    echo "  -c       checks the current user's age bracket"
    exit 1
}

AGE=""
CHECK=""

while getopts ":s:ch" opt; do
    case $opt in
        s) AGE="$OPTARG" ;;
        c) CHECK="true" ;;
        h) usage ;;
        \?) echo "Error: Invalid option -$OPTARG" >&2; usage ;;
        :)  echo "Error: Option -$OPTARG requires an argument" >&2; usage ;;
    esac
done

if [ "" != "$AGE" ]
then
  if [ 13 -gt "$AGE" ]
  then
    echo "A" > ~/.caab1403_bracket
  elif [ 16 -gt "$AGE" ]
  then
    echo "B" > ~/.caab1403_bracket
  elif [ 18 -gt "$AGE" ]
  then
    echo "C" > ~/.caab1403_bracket
  else
    echo "D" > ~/.caab1403_bracket
  fi
fi

if [ "" != "$CHECK" ]
then
  cat ~/.caab1403_bracket
fi