#!/bin/bash
# NSS wrapper for Avorion getpwuid(); then match upstream Ptero steamcmd entrypoint behavior
# (see https://github.com/Ptero-Eggs/yolks/blob/main/steamcmd/entrypoint.sh )
set -eo pipefail

export USER=container
export LOGNAME=container
export HOME=/home/container
export XDG_CONFIG_HOME=/home/container/.config
export XDG_DATA_HOME=/home/container/.local/share
mkdir -p /home/container /tmp
mkdir -p "$XDG_CONFIG_HOME" "$XDG_DATA_HOME"

uid="$(id -u)"
gid="$(id -g)"

PASSWD_FILE="/tmp/passwd"
GROUP_FILE="/tmp/group"

cp /etc/passwd "$PASSWD_FILE"
cp /etc/group "$GROUP_FILE"

if ! awk -F: -v target_uid="$uid" '$3 == target_uid { found=1 } END { exit !found }' "$PASSWD_FILE"; then
    echo "container:x:${uid}:${gid}::/home/container:/bin/bash" >> "$PASSWD_FILE"
fi

if ! awk -F: -v target_gid="$gid" '$3 == target_gid { found=1 } END { exit !found }' "$GROUP_FILE"; then
    echo "container:x:${gid}:" >> "$GROUP_FILE"
fi

export NSS_WRAPPER_PASSWD="$PASSWD_FILE"
export NSS_WRAPPER_GROUP="$GROUP_FILE"

libnss="$(find /usr/lib /lib -type f \( -name 'libnss_wrapper.so' -o -name 'libnss_wrapper.so.*' \) -print -quit 2>/dev/null || true)"
if [ -n "$libnss" ]; then
    export LD_PRELOAD="${libnss}${LD_PRELOAD:+:${LD_PRELOAD}}"
else
    echo "[entrypoint] WARNING: libnss_wrapper not found; UID/GID passthrough may fail for Avorion." >&2
fi

cd /home/container || exit 1

echo "[entrypoint] uid=${uid} gid=${gid} home=${HOME} user=${USER}" >&2
echo "[entrypoint] NSS wrapper passwd=${NSS_WRAPPER_PASSWD} group=${NSS_WRAPPER_GROUP}" >&2
echo "[entrypoint] LD_PRELOAD=${LD_PRELOAD:-<empty>}" >&2
if ! getent passwd "$uid" >/dev/null 2>&1; then
    echo "[entrypoint] WARNING: getent cannot resolve uid ${uid} prior to exec." >&2
fi

# --- below: adapted from Ptero-Eggs/yolks steamcmd/entrypoint.sh ---

sleep 1

TZ=${TZ:-UTC}
export TZ

INTERNAL_IP=$(ip route get 1 | awk '{print $(NF-2);exit}')
export INTERNAL_IP

# Set environment for Steam Proton (unchanged from upstream)
if [ -f "/usr/local/bin/proton" ]; then
    if [ -n "${SRCDS_APPID:-}" ]; then
        mkdir -p "/home/container/.steam/steam/steamapps/compatdata/${SRCDS_APPID}"
        export STEAM_COMPAT_CLIENT_INSTALL_PATH="/home/container/.steam/steam"
        export STEAM_COMPAT_DATA_PATH="/home/container/.steam/steam/steamapps/compatdata/${SRCDS_APPID}"
        export PATH="${PATH}:/root/.local/bin"
    else
        echo -e "----------------------------------------------------------------------------------"
        echo -e "WARNING!!! SRCDS_APPID is missing and must be set when using Proton"
        echo -e "Server will now terminate"
        echo -e "----------------------------------------------------------------------------------"
        exit 1
    fi
fi

STEAM_USER=${STEAM_USER:-anonymous}
if [ "${STEAM_USER}" == "anonymous" ]; then
    STEAM_PASS=""
    STEAM_AUTH=""
fi

if [ -z "${AUTO_UPDATE}" ] || [ "${AUTO_UPDATE}" == "1" ]; then
    if [ -n "${SRCDS_APPID:-}" ] && [ -x "./steamcmd/steamcmd.sh" ]; then
        # shellcheck disable=SC2046,SC2086
        ./steamcmd/steamcmd.sh +force_install_dir /home/container \
            $([[ "${WINDOWS_INSTALL:-}" == "1" ]] && printf %s '+@sSteamCmdForcePlatformType windows' || printf %s '+@sSteamCmdForcePlatformType linux') \
            +login "${STEAM_USER}" "${STEAM_PASS}" "${STEAM_AUTH}" \
            $([[ -z ${HLDS_GAME:-} ]] || printf %s "+app_set_config 90 mod ${HLDS_GAME}") \
            "+app_update ${SRCDS_APPID} $([[ -z ${SRCDS_BETAID:-} ]] || printf %s "-beta ${SRCDS_BETAID}") $([[ -z ${SRCDS_BETAPASS:-} ]] || printf %s "-betapassword ${SRCDS_BETAPASS}") ${INSTALL_FLAGS:-} $([[ "${VALIDATE:-}" == "1" ]] && printf %s 'validate')" \
            $([[ "${UPDATE_STEAMWORKS:-}" == "1" ]] && printf %s '+app_update 1007') +quit
    fi
fi

# Replace {{VAR}} with ${VAR} then eval (required for Pterodactyl egg startup strings)
MODIFIED_STARTUP=$(echo "${STARTUP}" | sed -e 's/{{/${/g' -e 's/}}/}/g')
echo -e ":/home/container$ ${MODIFIED_STARTUP}"

# shellcheck disable=SC2086
eval ${MODIFIED_STARTUP}