#!/bin/bash

DO_JSON=0
MY_PATH=$(dirname $0)
MY_USER="unknown"
MY_UID="unknown"
MY_GID="unknown"
MY_GROUPS="unknown"

set_user_info()
{
    USER_NAME=${1}
    OUTPUT=$(id ${USER_NAME} 2>/dev/null)

    if [ $? -eq 0 ]; then
        MY_UID=$(echo ${OUTPUT} | cut -d' ' -f1 | cut -d'=' -f2 | cut -d'(' -f1)
        MY_GID=$(echo ${OUTPUT} | cut -d' ' -f2 | cut -d'=' -f2 | cut -d'(' -f1)
        MY_GROUPS=$(echo ${OUTPUT} | cut -d' ' -f3 | cut -d'=' -f2)
    fi
}

output_results_json()
{
    echo "{"
    echo "  \"username\": \"${MY_USER}\","
    echo "  \"uid\": \"${MY_UID}\","
    echo "  \"gid\": \"${MY_GID}\","
    echo "  \"groups\": [\"${MY_GROUPS}\"]"
    echo "}"
}

output_results()
{
    do_json=${1}

    if [ ${do_json} -eq 1 ]; then
        output_results_json
    else
        echo "username:${MY_USER}"
        echo "uid:${MY_UID}"
        echo "gid:${MY_GID}"
        echo "groups:${MY_GROUPS}"
    fi
}

##### MAIN #####
source ${MY_PATH}/general_funcs.bash

while getopts "ju:" opt; do
    case ${opt} in
        u)
            MY_USER=${OPTARG}
        ;;
        j)
            DO_JSON=1
        ;;
    esac
done

set_user_info ${MY_USER}
output_results ${DO_JSON}

exit 0