# syntax=docker/dockerfile:1.6
#
# TShock v5.2.4 for Terraria 1.4.4.9 (Linux amd64/arm64)
# - Pulls the official release asset from GitHub and extracts it
# - Runs as a non-root user
# - Persists runtime data under /data
#

FROM mcr.microsoft.com/dotnet/runtime:6.0-bookworm-slim

ARG TSHOCK_VERSION=5.2.4
ARG TERRARIA_VERSION=1.4.4.9
ARG TARGETARCH
ENV \
  TSHOCK_VERSION="${TSHOCK_VERSION}" \
  TERRARIA_VERSION="${TERRARIA_VERSION}" \
  TSHOCK_DIR="/opt/tshock" \
  DOTNET_SYSTEM_GLOBALIZATION_INVARIANT=false

RUN apt-get update && apt-get install -y --no-install-recommends \
      ca-certificates \
      curl \
      unzip \
      tar \
    && rm -rf /var/lib/apt/lists/*

# Create non-root user and directories
RUN useradd -m -u 10001 -s /usr/sbin/nologin tshock \
  && mkdir -p "${TSHOCK_DIR}" /data \
  && chown -R tshock:tshock "${TSHOCK_DIR}" /data

WORKDIR /tmp

# Download the correct TShock release asset for the platform and extract it.
RUN set -eux; \
    case "${TARGETARCH}" in \
      amd64) ASSET_ARCH="amd64" ;; \
      arm64) ASSET_ARCH="arm64" ;; \
      *) echo "Unsupported TARGETARCH: ${TARGETARCH}"; exit 1 ;; \
    esac; \
    ASSET="TShock-${TSHOCK_VERSION}-for-Terraria-${TERRARIA_VERSION}-linux-${ASSET_ARCH}-Release.zip"; \
    URL="https://github.com/Pryaxis/TShock/releases/download/v${TSHOCK_VERSION}/${ASSET}"; \
    echo "Downloading ${URL}"; \
    curl -fL --retry 5 --retry-delay 2 -o tshock.zip "${URL}"; \
    unzip -q tshock.zip; \
    # Release zip contains a tar; extract the first .tar found.
    TAR="$(ls -1 *.tar | head -n 1)"; \
    test -n "${TAR}"; \
    tar -xf "${TAR}" -C "${TSHOCK_DIR}"; \
    rm -rf /tmp/*; \
    chmod +x "${TSHOCK_DIR}/TShock.Server" "${TSHOCK_DIR}/TShock.Installer" || true; \
    chown -R tshock:tshock "${TSHOCK_DIR}"

# Persist server data (worlds/config/db/logs/etc). Bind-mount /data in compose.
VOLUME ["/data"]

EXPOSE 7777/tcp

USER tshock
WORKDIR /data

ENTRYPOINT ["/opt/tshock/TShock.Server"]