#!/bin/bash

# Version History Check
TEXT=$(
curl -s https://terraria.wiki.gg/wiki/Desktop_version_history | tr '\n' ' ' | grep -oP '(?<=<tbody>).*?(?=</tbody>)'
)
ALL_VERSIONS=$(echo "$TEXT" | grep -oP '[0-9]+\.[0-9]+(\.[0-9]+){1,2}')
LATEST_VERSION=$(echo "$ALL_VERSIONS" | head -n1)
LATEST_VERSION_NO_DOT=$(echo "$LATEST_VERSION" | tr -d '.')
ALL_VERSIONS_NO_DOT=$(printf "%s\n" "$ALL_VERSIONS" | tr -d '.')
if [[ $1 == 'latest' ]]; then
    VERSION=$LATEST_VERSION_NO_DOT
    echo "Latest version: $VERSION"
elif [[ -n $1 ]]; then
    if echo "$ALL_VERSIONS" | tr -d '.' | grep -q "^$1$"; then
        VERSION=$1
    else
        echo "Error: version '$1' not found in version history."
        exit 1
    fi
else
    VERSION=$LATEST_VERSION_NO_DOT
    echo "If no parameters are passed"
    echo "The version will default to the latest version."
    echo "Latest version: $VERSION. "
fi

# Local Folder Check
LOCAL_VERSIONS=$(printf '%s\n' * | grep -oP '[0-9]+[0-9]+([0-9]+)?+([0-9]+)?')
if printf '%s\n' "$LOCAL_VERSIONS" | grep -qx -- "$VERSION"; then
    VERSION="$VERSION"
else
    echo "Error: version '$VERSION' does not exist locally."
    printf "Do you want to install it? (Y/n) "
    read CHOICE 
    if [[ $CHOICE == 'y' || $CHOICE == 'Y' ]]; then
        bash install $VERSION
    else
        exit 1
    fi
fi

# Run
bash ./$VERSION/Linux/TerrariaServer