#!/bin/sh
set -e

echo "Current user is: $(whoami)"

# Construct the SteamCMD login arguments.
# We build a string that will be evaluated by the shell to handle credentials correctly.
if [ -z "$STEAM_USER" ] || [ "$STEAM_USER" = "anonymous" ]; then
    echo "Using anonymous Steam login."
    LOGIN_ARGS="anonymous"
else
    echo "Using Steam credentials for user '$STEAM_USER'."
    # Quoting the variables ensures that empty passwords or special characters are handled correctly.
    LOGIN_ARGS="\"$STEAM_USER\" \"$STEAM_PASSWORD\" \"$STEAM_GUARD_CODE\""
fi

# The 'eval' command is used here to correctly parse the quoted LOGIN_ARGS string.
# This is a safe use of eval because the variables are controlled by the user running the container.
if [ -z "$MANIFEST_ID" ] || [ "$MANIFEST_ID" = "none" ]; then
    echo "MANIFEST_ID is not set. Downloading the latest stable version of the server..."
    eval steamcmd +force_install_dir "$SERVER_DIR" +login $LOGIN_ARGS +app_update 996560 validate +quit
else
    echo "MANIFEST_ID is set to $MANIFEST_ID. Downloading specific server version..."
    eval steamcmd +login $LOGIN_ARGS +download_depot 996560 "$DEPOT_ID" "$MANIFEST_ID" +quit

    # download_depot downloads to a specific folder, not the one specified by force_install_dir
    DEPOT_DOWNLOAD_DIR="$INSTALL_DIR/steamapps/content/app_996560/depot_$DEPOT_ID"

    if [ -d "$DEPOT_DOWNLOAD_DIR" ] && [ "$(ls -A "$DEPOT_DOWNLOAD_DIR")" ]; then
        echo "Depot downloaded successfully. Clearing server directory..."
        find "$SERVER_DIR" -mindepth 1 -delete
        echo "Copying downloaded files from $DEPOT_DOWNLOAD_DIR to $SERVER_DIR"
        cp -rT "$DEPOT_DOWNLOAD_DIR" "$SERVER_DIR"
        echo "Successfully copied files."
    else
        echo "Error: Depot download failed or the directory is empty." >&2
        echo "Please check MANIFEST_ID ($MANIFEST_ID) and DEPOT_ID ($DEPOT_ID), and ensure credentials are correct." >&2
        exit 1
    fi
fi

# Ensure config directory exists for server settings
INTERNAL_CONFIG_SUBDIR="$CONFIG_DIR/SCP Secret Laboratory/config/"
mkdir -p "$INTERNAL_CONFIG_SUBDIR"

# Process the internal data template to accept the EULA, which is required on first run
INTERNAL_DATA_TEMPLATE_FILE="$CONFIG_TEMPLATES_DIR/localadmin_internal_data.json.template"
INTERNAL_DATA_FILE="$INTERNAL_CONFIG_SUBDIR/localadmin_internal_data.json"
if [ ! -f "$INTERNAL_DATA_FILE" ]; then
    echo "Creating \`localadmin_internal_data.json\` file with EULA acceptance..."
    CURRENT_DATE=$(date -u +"%Y-%m-%dT%H:%M:%S.%7NZ")
    sed "s/\${EulaDateAccepted}/$CURRENT_DATE/g" "$INTERNAL_DATA_TEMPLATE_FILE" > "$INTERNAL_DATA_FILE"
    chmod 644 "$INTERNAL_DATA_FILE"
    echo "Successfully created \`localadmin_internal_data.json\` file."
fi

echo "Starting SCP: Secret Laboratory server on port $PORT..."
# Change to the server directory and execute the server binary
cd "$SERVER_DIR" && HOME="$INSTALL_DIR" ./LocalAdmin "$PORT"

# Fallback to keep the container alive if the server process exits
sleep infinity