docker-entrypoint

#!/bin/bash

PID=$!
echo "PID:$PID"
CONFIG_PATH="/etc/Terraria"
CONFIG_FILE="config.cfg"

function prepare-config {
    cp /etc/Terraria/config_template.cfg "$CONFIG_PATH/$CONFIG_FILE"
    echo -e "Writing config:\nWORLD=$WORLD\nMAX_PLAYERS=$MAX_PLAYERS\nPORT=$PORT\nMOTD=$MOTD\nSECURE=$SECURE\nLANGUAGE=$LANGUAGE\n"

    PASSWORD=$(cat "$CONFIG_PATH/$PASSWORD_FILE")
    
    sed -i "s/{{WORLD}}/$WORLD/g" "$CONFIG_PATH/$CONFIG_FILE"
    sed -i "s/{{MAX_PLAYERS}}/$MAX_PLAYERS/g" "$CONFIG_PATH/$CONFIG_FILE"
    sed -i "s/{{PORT}}/$PORT/g" "$CONFIG_PATH/$CONFIG_FILE"
    sed -i "s/{{PASSWORD}}/$PASSWORD/g" "$CONFIG_PATH/$CONFIG_FILE"
    sed -i "s/{{MOTD}}/$MOTD/g" "$CONFIG_PATH/$CONFIG_FILE"
    sed -i "s/{{SECURE}}/$SECURE/g" "$CONFIG_PATH/$CONFIG_FILE"
    sed -i "s/{{LANGUAGE}}/$LANGUAGE/g" "$CONFIG_PATH/$CONFIG_FILE"
}

function start-server {
    echo "Starting server..."
    tmux new -s terraria -d "/TerrariaServer/TerrariaServer.bin.x86_64 -config $CONFIG_PATH/$CONFIG_FILE $START_PARAMETER" 
    echo "Server up und running"
}
function save-server {
    echo "Check if server is running"
    tmux ls > /dev/null 2>&1
    if [[ $(echo $?) == "0" ]]; then
    echo "Save server"
        tmux set-buffer "save" \; paste-buffer \; send-keys C-m
    else
        echo "Server stoppped"
    fi
}

function stop-server {
    # You won't see this in the terminal. Use `docker logs <container_id>` instead.
    echo "Stop server"
    tmux set-buffer "exit" \; paste-buffer \; send-keys C-m
	rm $CONFIG_PATH/$CONFIG_FILE
}

trap "stop-server" 1 2 3 6 15

prepare-config
start-server

while :
do
    sleep $AUTOSAVE_INTERVAL & wait $PID
    save-server
done