rename

#!/bin/bash
_report(){
    local RED="$(tput setaf 1)"   # Red      - For Warnings
    local GREEN="$(tput setaf 2)" # Green    - For Declarations
    local BLUE="$(tput setaf 4)"  # Blue     - For Questions
    local NC="$(tput sgr0)"       # No Color
    local COLOR=""
    local STARTMESSAGE=""
    local ENDMESSAGE=""
    local ECHOOPT=""
    local LOG_MESSAGE=""
    OPTIND=1
    while getopts ":qdwstn" OPT; do
        case "${OPT}" in
            q) COLOR="${BLUE}" ;;                         # question mode, use color blue
            d) COLOR="${GREEN}" ;;                        # declaration mode, use color green
            w) COLOR="${RED}" ; LOG_MESSAGE="Y" ;;        # warning mode, use color red
            s) STARTMESSAGE+=([$(basename "${0}")] ) ;;   # prepend scriptname to the message
            t) STARTMESSAGE+=($(_get_iso8601) '- ' ) ;;   # prepend timestamp to the message
            n) ECHOOPT="-n" ;;                            # to avoid line breaks after echo
        esac
    done
    shift $(( ${OPTIND} - 1 ))
    MESSAGE="${1}"
    echo "${ECHOOPT}" "${COLOR}${STARTMESSAGE[@]}${MESSAGE}${NC}"
    [ "${LOG_MESSAGE}" = "Y" ] && _log -w "${MESSAGE}"
}

# chmod +x FILENAME

_report -q -n "Please enter a Base File Name: "
read BASE_FILE_NAME

_report -q -n "Plese drag in a list of files: "
read -e -a SO_MANY_FILES
echo
_report -d -n "Thank you. You listed:"
echo
for A_FILE in "${SO_MANY_FILES[@]}" ; do
    echo "   + ${A_FILE}"
done
echo
for A_FILE in "${SO_MANY_FILES[@]}" ; do
    if [[ ! -f "${A_FILE}" ]] ; then
        _report -r "Error: ${A_FILE} is not a file. Stopping."
        exit 1
    fi
done

for A_FILE in "${SO_MANY_FILES[@]}" ; do
    if [[ ! -r "${A_FILE}" ]] ; then
        _report -r "Error: ${A_FILE} is not readable. Stopping."
        exit 1
    fi
done

FILE_TEMPLATE="$(dirname "${SO_MANY_FILES[1]}")/${BASE_FILE_NAME}_ORIGINAL_FILE_NAME.csv"

echo "# Model Info - Do not edit," > "${FILE_TEMPLATE}"
echo "SI.CORE.VIDEO.MODEL," >> "${FILE_TEMPLATE}"
echo "# Headers/Properties - Do not edit," >> "${FILE_TEMPLATE}"
echo "Asset Name,Original File Name" >> "${FILE_TEMPLATE}"

echo
_report -d -n "Below is how your files will be copied and renamed." 
echo
_report -d -n "The files will be copied to $(dirname "${A_FILE}")"
echo
COUNTER=1
for A_FILE in "${SO_MANY_FILES[@]}" ; do
    A_EXTENSION="${A_FILE##*.}"
    NEW_NAME="$(dirname "${A_FILE}")/${BASE_FILE_NAME}${COUNTER}.${A_EXTENSION}"
    #echo "$(basename "${NEW_NAME}"),$(basename "${A_FILE}")" >> "${FILE_TEMPLATE}"
    echo "  $(basename "${A_FILE}") >> >> $(basename "${NEW_NAME}")"
    COUNTER=$(( COUNTER + 1 ))
done
echo
read -p "If that looks good, please press Enter to copy and rename the files."
echo
COUNTER=1
for A_FILE in "${SO_MANY_FILES[@]}" ; do
    A_EXTENSION="${A_FILE##*.}"
    NEW_NAME="$(dirname "${A_FILE}")/${BASE_FILE_NAME}${COUNTER}.${A_EXTENSION}"
    echo "$(basename "${NEW_NAME}"),$(basename "${A_FILE}")" >> "${FILE_TEMPLATE}"
    cp -n "${A_FILE}" "${NEW_NAME}"
    COUNTER=$(( COUNTER + 1 ))
done

cowsay "Done! The template is at ${FILE_TEMPLATE}. Beautiful renaming job! You are a superstar!"