# Containerfile for Forts Clone build environment
# Builds all C/C++ dependencies from source, installs to /usr/local.
# Usage:
#   podman build -t forts-clone-dev .
#   podman run -it --rm -v $(pwd):/src:Z --userns=keep-id forts-clone-dev

FROM docker.io/library/fedora:41

# =============================================================================
# All system packages in one layer
# =============================================================================
RUN dnf -y update && dnf -y install \
    gcc-c++ clang lld meson ninja-build cmake git gdb valgrind \
    SDL3-devel lua-devel glm-devel \
    mesa-libGL-devel mesa-libEGL-devel \
    libX11-devel libXcursor-devel libXi-devel libXinerama-devel libXrandr-devel \
    wayland-devel libdrm-devel libxkbcommon-devel libxkbcommon-x11-devel \
    vulkan-loader-devel \
    pkg-config python3 which \
    && dnf clean all

# =============================================================================
# bgfx -- cross-platform GPU rendering
# =============================================================================
WORKDIR /tmp/bgfx_build
RUN git clone --recursive --depth 1 https://github.com/bkaradzic/bgfx.cmake.git . \
    && cmake -B build -G Ninja \
        -DCMAKE_BUILD_TYPE=Release \
        -DCMAKE_INSTALL_PREFIX=/usr/local \
        -DBGFX_BUILD_TOOLS=OFF \
        -DBGFX_BUILD_EXAMPLES=OFF \
        -DBGFX_BUILD_TESTS=OFF \
    && cmake --build build \
    && cmake --install build \
    && rm -rf /tmp/bgfx_build

# =============================================================================
# Box2D v3 -- deterministic 2D physics engine
# Built directly from source to avoid CMake FetchContent issues.
# =============================================================================
WORKDIR /tmp/box2d_build
RUN git clone --depth 1 --branch v3.1.1 https://github.com/erincatto/box2d.git . \
    && mkdir -p /usr/local/include/box2d \
    && cp -r include/box2d/*.h /usr/local/include/box2d/ \
    && cp -r include/box2d/*.h /usr/local/include/ \
    && gcc -c src/*.c -I include -I src -O2 -DBOX2D_ENABLE_ASSERT=0 \
    && ar rcs libbox2d.a *.o \
    && cp libbox2d.a /usr/local/lib/ \
    && rm -rf /tmp/box2d_build

# =============================================================================
# SoLoud -- game audio engine
# Built directly from source (contrib CMake is fragile).
# =============================================================================
RUN dnf -y install alsa-lib-devel pulseaudio-libs-devel && dnf clean all
WORKDIR /tmp/soloud_build
RUN git clone --depth 1 https://github.com/jarikomppa/soloud.git . \
    && mkdir -p /usr/local/include/soloud \
    && cp include/*.h /usr/local/include/soloud/ \
    && g++ -c src/core/*.cpp src/audiosource/*/*.cpp src/filter/*.cpp \
        src/backend/alsa/*.cpp src/c_api/*.cpp \
        -I include -O2 -fPIC -DWITH_ALSA \
    && ar rcs libsoloud.a *.o \
    && cp libsoloud.a /usr/local/lib/ \
    && rm -rf /tmp/soloud_build

# =============================================================================
# ENet -- UDP networking library
# =============================================================================
WORKDIR /tmp/enet_build
RUN git clone --depth 1 --branch v1.3.18 https://github.com/lsalzman/enet.git . \
    && cmake -B build -G Ninja \
        -DCMAKE_BUILD_TYPE=Release \
        -DCMAKE_INSTALL_PREFIX=/usr/local \
    && cmake --build build \
    && cmake --install build \
    && rm -rf /tmp/enet_build

# =============================================================================
# =============================================================================
# sol2 -- Lua C++ bindings (header-only)
# =============================================================================
WORKDIR /tmp/sol2_build
RUN git clone --depth 1 --branch v3.5.0 https://github.com/ThePhD/sol2.git . \
    && cp -r include/sol /usr/local/include/ \
    && rm -rf /tmp/sol2_build

# =============================================================================
# EnTT -- ECS library (header-only)
# =============================================================================
WORKDIR /tmp/entt_build
RUN git clone --depth 1 --branch v3.14.0 https://github.com/skypjack/entt.git . \
    && cp -r src/entt /usr/local/include/ \
    && rm -rf /tmp/entt_build

# =============================================================================
# Lua 5.4 -- built as a STATIC archive (liblua.a) so the game binary carries
# Lua itself and needs no liblua .so at runtime. Fedora's shared soname
# (liblua-5.4.so) differs from other distros (liblua5.4.so), which breaks
# running the container-built binary on the host. Appended LAST so none of the
# cached dependency layers above have to rebuild.
# =============================================================================
WORKDIR /tmp/lua_build
RUN python3 -c "import urllib.request; urllib.request.urlretrieve('https://www.lua.org/ftp/lua-5.4.7.tar.gz','lua.tar.gz')" \
    && tar xf lua.tar.gz \
    && cd lua-5.4.7/src \
    && gcc -O2 -fPIC -DLUA_USE_LINUX -c $(ls *.c | grep -vE '^(lua|luac)\.c$') \
    && ar rcs liblua.a *.o \
    && install -m644 liblua.a /usr/local/lib/ \
    && install -m644 lua.h luaconf.h lualib.h lauxlib.h /usr/local/include/ \
    && printf 'extern "C" {\n#include "lua.h"\n#include "lualib.h"\n#include "lauxlib.h"\n}\n' \
        > /usr/local/include/lua.hpp \
    && rm -rf /tmp/lua_build

# =============================================================================
# Ready
# =============================================================================
WORKDIR /src
CMD ["bash"]