username=cogiz
#!/bin/bash

shuffle() #@ USAGE: shuffle
{ #@ TODO: add options for multiple or partial decks
 Deck=$(
   printf "%s\n" {2,3,4,5,6,7,8,9,T,J,Q,K,A}{H,S,D,C} |
    awk '## Seed the random number generator
         BEGIN { srand() }

         ## Put a random number in front of each line
         { printf "%.0f\t%s\n", rand() * 99999, $0 }
    ' |
     sort -n |  ## Sort the lines numerically
      cut -f2  ## Remove the random numbers
  )
}

_deal() #@ USAGE: _deal [N] -- where N is no. of cards; defaults to 1
{       #@ RESULT: stored in $_DEAL
    local num=${1:-1}
    set -- $Deck
    _DEAL=${@:1:$num}
    shift "$num"
    cards_remaining=$#
    Deck=$*
}

deal() #@ USAGE: deal [N]
{      #@ RESULT: cards printed one to a line
    _deal "$@"
    printf "%s " $_DEAL
}

################################################

shuffle
declare -a PH
deal 8 > /home/cogiz/playerhand.txt           #  (7D 3H 4D 9H KC 2H 7C 9S)
deal 8 > /home/cogiz/computerhand.txt
deal 1 > /home/cogiz/activecard.txt            # (9C)
mapfile -t PH < /home/cogiz/playerhand.txt
X=$(</home/cogiz/activecard.txt)
A=( "${X[@]::1}" )                               # 9
B=( "${X[@]:1}" )                                # C
C=8                                                    # 8

for e in ${PH[@]}; do
  
   if [[ $e =~ $A|$B|8 ]]; then
      printf "$e " >> /home/cogiz/choices.txt
   else
      printf "0 " >> /home/cogiz/choices.txt
   fi
done