#!/bin/bash

set -e
set +x

VDOCS_HOME_DIR=$VDOCS_HOME
REPORT_SERVER=`echo $REPORT_SERVER | xargs`
SSH_USERNAME=`echo $SSH_USERNAME | xargs` # Trim whitespace
SSH_CONNECTION="ssh -q -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null"

echo "VDOCS_HOME_DIR: $VDOCS_HOME_DIR"
echo "REPORT_SERVER: $REPORT_SERVER"
echo "SSH_USERNAME: $SSH_USERNAME"

echo ""
echo "-------------------------------------------------------------------"
echo "Determining SSH user for $REPORT_SERVER"
echo "-------------------------------------------------------------------"
echo ""

set +e


function test_ssh(){
    # Takes server as first parameter
    local server=$1
    # Tries with list of users
    for user in $SSH_USERNAME mmsdev mmsvdocs
    do
        echo -n "Trying with user $user..."
        $SSH_CONNECTION $user@$server "exit"
        if [[ $? -eq 0 ]]; then
            SSH_USERNAME="$user"
            echo "[SUCCESS]"
            # Return first suitable user found
            return $user
            continue
        else
            echo "[FAILED]"
        fi
    done
    # No good users found
    return failure
}


# Loops over all report servers
for server in $REPORT_SERVER
do
    # Test if we can log in
    username=$(test_ssh $server)
    [ $username == "failure"] && echo "No suitable users for $server" && continue
    # If we can login, keep going
    echo "Doing stuff for $server with $username"

done