#!/bin/bash

set -o errexit
set -o errtrace
set -o nounset
set -o pipefail

# The directory where this script lives - used as the base for finding all
# of the scripts to be installed.
src_dir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"

# Set default values for installation parameters.
script_dir="$HOME/.local/bin"
install_target="all"
install_scripts=true

display_targets () {
    echo 'Valid targets: all, scripts'
}

display_usage () {
    echo 'Usage: install.sh [--script-dir <path>] [-h|--help]'
    echo ''
    echo 'Install scripts.'
    echo ''
    echo '  --script-dir    Location for installed scripts.'
    echo "                  Default = \$HOME/.local/bin"
    echo '  -h|--help       Display this usage text.'
    echo ''
    echo 'Examples:'
    echo ''
    echo "./install.sh"
}

while [[ $# -gt 0 ]]
do
key="$1"

case $key in
    --script-dir)
        script_dir="$2"
        shift
        shift
        ;;
    -h|--help)
        display_usage
        exit 0
        ;;
    *)
        echo "Unrecognized option: $1"
        display_usage
        exit 1
        ;;
esac
done

# Validate the selected script directory.
if [ ! -d "$script_dir" ]; then
    echo "Installation directory for scripts does not exist or is not a directory (${script_dir})"
    exit 1
fi

if $install_scripts; then
    echo "Installing all scripts to: ${script_dir}"
    cp -f "$src_dir"/src/* "${script_dir}"
fi