#!/bin/bash

#Toolkit Check
if command -v unzip 1>/dev/null 2>&1; then
    printf "unzip is installed\n"
else
    printf "unzip may not be installed. Do you want to continue? (Y/n) "
    read CHOICE 
    if [[ $CHOICE == 'y' || $CHOICE == 'Y' ]]; then
        printf 'continue\n' 
    else
        exit 1
    fi
fi
if command -v curl 1>/dev/null 2>&1; then
    printf "curl is installed\n"
else
    printf "curl may not be installed. Do you want to continue? (Y/n) "
    read CHOICE 
    if [[ $CHOICE == 'y' || $CHOICE == 'Y' ]]; then
        printf 'continue\n' 
    else
        exit 1
    fi
fi
if command -v wget 1>/dev/null 2>&1; then
    printf "wget is installed\n"
else
    printf "wget may not be installed. Do you want to continue? (Y/n) "
    read CHOICE 
    if [[ $CHOICE == 'y' || $CHOICE == 'Y' ]]; then
        printf 'continue\n' 
    else
        exit 1
    fi
fi

# Version History Check
TEXT=$(
curl -s https://terraria.wiki.gg/wiki/Desktop_version_history | tr '\n' ' ' | grep -oP '(?<=<tbody>).*?(?=</tbody>)'
)
ALL_VERSIONS=$(echo "$TEXT" | grep -oP '[0-9]+\.[0-9]+(\.[0-9]+)?+(\.[0-9]+)?')
LATEST_VERSION=$(printf "%s\n" "$ALL_VERSIONS" | head -n1)
VERSION_NO_DOT=$(echo "$LATEST_VERSION" | tr -d '.')
if [[ $1 == 'latest' ]]; then
    echo "Latest version: $VERSION"
    VERSION=$VERSION_NO_DOT
elif [[ -n $1 ]]; then
    if echo "$ALL_VERSIONS" | tr -d '.' | grep -q "^$1$"; then
        VERSION=$1
        echo "Selected version: $VERSION"
    else
        echo "Error: version '$1' not found in version history."
        exit 1
    fi
else
    echo "Latest version: $VERSION"
    VERSION=$VERSION_NO_DOT
fi

# Install
wget https://terraria.org/api/download/pc-dedicated-server/terraria-server-$VERSION.zip
unzip terraria-server-$VERSION.zip
rm terraria-server-$VERSION.zip
rm -fr ./$VERSION/Windows/
cd $VERSION/Linux/
chmod +x TerrariaServer.bin.x86_64