#!/bin/bash
# touchx
# Description: creates a new shell script in ~/Applications/UNIX/, makes it executable (chmod a+x), inserts some standard boilerplate, and opens it for editing

###  Requires one argument: the name of the new script
# Error codes
ARGS=1 && ERR_ARGS=65

AUTHOR="Scott Russell, IT Support Engineer, University of Notre Dame"

if [[ $# != "$ARGS" ]]; then
	echo
	echo "     Usage:  `basename $0` <filename> [Author]"
	echo
	echo "     Description:  `basename $0` will create <filename>.sh in \$HOME/Applications/UNIX/,"
	echo "          chmod filename.sh to a+x, insert some standard boilerplate text,"
	echo "          and open filename.sh for editing in BBEdit, TextEdit, or vi."
	echo
	echo "     The [Author] parameter is optional.  If not specified, it will default to"
	echo "          \"$AUTHOR\""
	echo "          (The default Author can be altered by editing this script.)"
	echo
	exit $ERR_ARGS
fi

###  Set a global variable for the application path and create the directory, if necessary
APP_PATH="$HOME/Applications/UNIX"
if [[ ! -d "${APP_PATH}" ]]; then
	mkdir "${APP_PATH}"
fi

###  Set a global variable for the script file we're creating
SCRIPT="${APP_PATH}/${1}.sh"

###  Simple script writing function
script_write()
{
	echo "${1}" >> "${SCRIPT}"
}

###  Does the script file already exist?
if [[ -f "${SCRIPT}" ]]; then
	EXIST=true
else
	EXIST=false
	touch "${SCRIPT}"
fi

###  Make the file executable
chmod a+x "${SCRIPT}"

###  Echo some basic content into the file
###  If the file already exists, leave it alone
if [[ "$EXIST" == false ]]; then
	script_write "#!/bin/bash"
	script_write "# ${1}.sh"
	script_write "# Description:   <what the script does>"
	script_write ""
	script_write "# Written by:    $AUTHOR"
	script_write "# Created on:    $(date)"
	script_write "# Last Modified: $(date)"
	script_write ""
	script_write ""
	script_write "exit 0"
fi

###  Open the script file in BBEdit or TextWrangler or TextEdit or vi
bbedit "${SCRIPT}" 2>/dev/null || edit "${SCRIPT}" 2>/dev/null || open -e "${SCRIPT}" 2>/dev/null || vi "${SCRIPT}"

exit 0