#!/bin/bash
#
# Author   : Gaston Gonzalez
# Date     : 30 September 2024
# Purpose  : Capture device information to aid in plug-and-play development.

echo
read -p "1. Enter a short name for the radio with no spaces (i.e. ic-7100): " input

RADIO=$(echo $input | sed 's/[ ]*//g')
DATE_NOW=$(date +%Y%m%d-%H%M%S)
OUT_DIR_BASE="${RADIO}-${DATE_NOW}"
[ ! -e $OUT_DIR_BASE ]  && mkdir $OUT_DIR_BASE

echo
read -p "2. Unplug the USB radio/interface from your computer. Press [enter] when done."

# Capture devices by ID with radio unplugged
find /dev | grep by-id > "${OUT_DIR_BASE}/dev-by-id.before"


echo
read -p "3. Connect the USB radio/interface to your computer. Press [enter] when done." input

# Capture devices by ID with radio plugged in
find /dev | grep by-id > "${OUT_DIR_BASE}/dev-by-id.after"

diff "${OUT_DIR_BASE}/dev-by-id.before" "${OUT_DIR_BASE}/dev-by-id.after" > "${OUT_DIR_BASE}/dev-by-id.diff"
echo -e "\n4. Found the following new devices:\n"
cat "${OUT_DIR_BASE}/dev-by-id.diff" | grep ">" | sed 's/> //g' | sort | while read device
do
  # skip directories
  if [ ! -d $device ]; then
    # Grab the short device name"
    SHORT_DEV_NAME=$(udevadm info $device | grep DEVNAME | cut -d"=" -f2)
    SHORT_DEV_FILE=$(echo $SHORT_DEV_NAME | sed 's|/|-|g')
    echo -e "${SHORT_DEV_NAME} = $device\n"

    OUT_FILE="${OUT_DIR_BASE}/udevadm-info${SHORT_DEV_FILE}"
    udevadm info $SHORT_DEV_NAME  > ${OUT_FILE}
    udevadm info --attribute-walk --name $SHORT_DEV_NAME >> ${OUT_FILE}

    sleep 1
  fi
done

echo -e "\n4. Created a directory called '${OUT_DIR_BASE}' to capture the device info for ${RADIO}"
find ${OUT_DIR_BASE}

TARBALL="$OUT_DIR_BASE.tar.gz"
echo -e "\n5. Packaging up device information"
tar -czf ${TARBALL} ${OUT_DIR_BASE}

echo "There should be a file called '${TARBALL}' in this directory. Please send it to Gaston."
echo "Thank you for the support!"