fee.fish

set fstate "$HOME/.local/state/tmp-stack.json"

function fee
    if test (count $argv) -eq 0
      __fee_push
      return 0
    end

    if string match -qr '^[-+]?[0-9]+$' -- $argv[1]
            __fee_at $argv[1]
        else
            switch $argv[1]
                case ls
                    __fee_ls $argv[2..-1]
                case la
                    __fee_la
                case rm
                    __fee_rm $argv[2..-1]
                case pop
                    __fee_pop $argv[2..-1]
                case push
                    __fee_push
                case cat
                  __fee_cat $argv[2..-1]
                case clear
                    __fee_clear
                case '*'
                    echo "Unknown command: $argv[1]"
                    echo "Usage: fee [ls|la|rm|pop|push|cat|clear|<number>]"
                    echo "  ls     : List all entries"
                    echo "  la     : List all entries in JSON format"
                    echo "  rm     : Remove an entry"
                    echo "  pop    : Remove and display the last entry"
                    echo "  push   : Add a new entry (default if no command given)"
                    echo "  cat    : Display the content of an entry"
                    echo "  clear  : Remove all entries"
                    echo "  <number>: Display the entry at the given index"
                    return 1
            end
        end
    end
    
function __fee_push
  set tmp (mktemp)
  cat > $tmp
  cat "$tmp" >/dev/stderr
  set tmpstate (mktemp)
  set timestamp (date -u +"%Y-%m-%dT%H:%M:%SZ")
  jq ". + [{\"metadata\": {\"createdAt\": \"$timestamp\"}, \"value\": \"$tmp\"}]" $fstate > $tmpstate
  mv $tmpstate $fstate
  echo $tmp
end

function __fee_ls
  if test "$argv[1]" = "-1"
    # print each temp file in plain text without formatting
    jq -r '.[].value' $fstate
    return 0
  end

  set lines (jq -r 'to_entries[] | "\(.key) \(.value.metadata.createdAt) \(.value.value)"' $fstate)

  for line in $lines
    set -l parts (string split ' ' $line)
    set -l index $parts[1]
    set -l timestamp $parts[2]
    set -l filepath $parts[3]
    echo (set_color yellow)$index(set_color normal) (set_color cyan)$timestamp(set_color normal) (set_color green)$filepath(set_color normal)
  end
end

function __fee_la
  jq . $fstate
end

function __fee_pop
  set tmp (mktemp)
  set value (jq -r '.[-1].value' $fstate)
  jq '.[:-1]' $fstate > $tmp && mv $tmp $fstate
  echo $value
end

function __fee_at
  cat $fstate | jq -r ".[$argv].value"
end

function __fee_cat
  set index 0
  if test (count $argv) -gt 0
    set index $argv[0]
  end
  echo "argv: $index"
  set fpath (__fee_at $index)
  echo "fpath: $fpath"
  if test -n "$fpath" -a -s "$fpath"
    cat $fpath
  else
    echo "<EMPTY>"
  end
end

function __fee_rm
  set tmpstate (mktemp)
  set index $argv[1]
  set removed (jq -r ".[$index].value" $fstate)
  jq "del(.[$index])" $fstate > $tmpstate
  mv $tmpstate $fstate
  echo $removed
end

function __fee_clear
  set file_count (gum style --foreground 6 "$(jq 'length' $fstate)")
  set a (gum style --foreground 3 "This action will remove ")
  set b (gum style --foreground 3 " files.")
  set c (gum join "$a" "$file_count")
  gum join "$c" "$b"

  if gum confirm "Proceed?"
      jq -r '.[].value' $fstate | xargs rm -f
      echo '[]' > $fstate
      echo "All temporary files cleared and state reset."
  else
      echo "Operation cancelled."
  end
end