#!/bin/bash

LOG_DIR="$HOME/Library/Preferences/Macromedia/Flash Player/Logs"
LOG_FILE="flashlog.txt"

LOG_PATH="${LOG_DIR}/${LOG_FILE}"

show_failure ()
{
    echo -e "\033[31mError: $1\033[00m"
    exit 1
}

show_warning ()
{
    echo -e "\033[33mWarning: $1\033[00m"
}

usage ()
{
    echo "usage: flash <option>"
    echo "Available options:"
    echo "    shell (sh)"
    echo "    log"
    echo "    clear-log (cl)"
    echo "    help"
    exit 0
}

if [ -z "$1" ]; then
    usage
fi

case "$1" in
    shell|sh)
        cmd_fcsh=`which fcsh`
        cmd_rlwrap=`which rlwrap`
        if [ -z "${cmd_fcsh}" ]; then
            show_failure "Can't find fcsh executable."
        fi
        if [ ! -z "${cmd_rlwrap}" ]; then
            $cmd_rlwrap $cmd_fcsh
        else
            show_warning "Can't find rlwrap executable."
            $cmd_fcsh
        fi
    ;;

    log)
        $0 cl
        tail -f "${LOG_PATH}"
    ;;

    clear-log|cl)
        if [ ! -d "${LOG_DIR}" ]; then
            mkdir -p "${LOG_DIR}"
        fi
        echo '' > "${LOG_PATH}"
    ;;

    help)
        usage
    ;;

    *)
        show_failure "unknown argument"
    ;;
esac