#!/bin/sh

FILE="${1}"

function exists() {
    command -v "${1}" >/dev/null
    return $?
}


function run_other {
    exists 7z &&
	7z l -p -- "${FILE}" | tail --lines="+11" && exit $?
    exists als &&
	als "${FILE}" && exit $? ||
	    echo "Can't find bsdtar, 7z, or atools!" && exit 1

}


# Parse output and rearrange it to be more suitable for possibly narrow column
function run_bsdtar() {
    # Check if bsdtar is present
    exists bsdtar || return 1

    bsdtar -v -t -f "${FILE}" 2>/dev/null |
	 awk '{
		# Only show two digits
		CONVFMT = "%2.2f"

		# Calculate human reatable size
		split( "B KB MB GB" , v );
		s=1;
		while( $5>1024 ) {
		       $5/=1024;
		       s++
		}

		# Print everything with tab as separator
		print $(9) $(10) $(11) "\t" \
			  $(1) "\t" $(2) "\t" $(3) "\t" $(4) "\t" \
			  $(5) v[s] "\t" \
			  $(6) "\t" $(7) "\t" $(8)
		}' |
	 column -t \
		-N NAME,PERMISSION,XATTR,USER,GROUP,SIZE,MON,DAY,TIME \
		-O name,size,permission,user,group,mon,day,time,xattr \
		-R permission,xattr,user,group,size,mon,day,time \
		-H xattr \
		-T name,permission,user,group,size,mon,day,time \
		-W name
}

# Try bsdtar, if it fails try the others
run_bsdtar "${1}" || run_other "${1}"